Realidades 4 Workbook Answers Capítulo 12 Temas que no pasan de moda
Realidades 4 Workbook Answers Chapter 12 Temas que no pasan de moda
Section Primera parte: Vocabulario
Realidades 4 Capitulo 12 Answers Page 269
1. We have to complete the sentence using a variation of the word in italics: rescatar (rescued)
The young man had to be rescued from the car after the accident. Firefighters completed the rescue in less than an hour.
el rescate
2. We have to complete the sentence using a variation of the word in italics: rétate (challenge yourself)
Challenge yourself to do your best in your studies. It is a challenge that will benefit you in the future.
reto
3. We have to complete the sentence using a variation of the word in italics: adaptarse (adapt)
Adapting to having classes without human teachers won’t be as easy as we think. However, with advances in technology, this adaptation will be easier in the future.
adaptación
4. We have to complete the sentence using a variation of the word in italics: vejez (old age)
Those who don’t want to get older, hope that one day will be a cure for old age.
envejecer
5. We have to complete the sentence using a variation of the word in italics: habrá extraído (will have been extracted)
Many are concerned that oil extraction won’t be possible in fifty years. By then, most of the oil that exists underground will have been extracted.
la extracción
Realidades 4 Capitulo 12 Answers Page 270
1. We have to complete the paragraph with the following words:
1. Adaptarse (adapt)
2. Explorar (to explore)
3. Extraer (extract)
4. Funciones (functions)
5. Rescatar (rescue)
6. Reto (challenge)
Next week, four Puerto-Rican scientists will be aboard a small station underwater, and their (1) challenge will be…
(1) reto
2. We have to complete the paragraph with the following words:
1. Adaptarse (adapt)
2. Explorar (to explore)
3. Extraer (extract)
4. Funciones (functions)
5. Rescatar (rescue)
6. Reto (challenge)
Its main purpose will be (2) to explore this almost unknown region…
(2) explorar
3. We have to complete the paragraph with the following words:
1. Adaptarse (adapt)
2. Explorar (to explore)
3. Extraer (extract)
4. Funciones (functions)
5. Rescatar (rescue)
6. Reto (challenge)
…and to be able to (3) rescue other endangered species.
(3) rescatar
4. We have to complete the paragraph with the following words:
1. Adaptarse (adapt)
2. Explorar (to explore)
3. Extraer (extract)
4. Funciones (functions)
5. Rescatar (rescue)
6. Reto (challenge)
The underwater station is small and has many electronic devices that will perform specific (4) functions.
(4) funciones
5. We have to complete the paragraph with the following words:
1. Adaptarse (adapt)
2. Explorar (to explore)
3. Extraer (extract)
4. Funciones (functions)
5. Rescatar (rescue)
6. Reto (challenge)
…, with which they hope to (5) extract samples of that mysterious ecosystem.
5. extraer
6. We have to complete the paragraph with the following words:
1. Adaptarse (adapt)
2. Explorar (to explore)
3. Extraer (extract)
4. Funciones (functions)
5. Rescatar (rescue)
6. Reto (challenge)
According to biologist Franco Rengel, it will be difficult for them to (6) adapt to living in such a small space…
6. adaptarse
Realidades 4 Capitulo 12 Answers Page 271
1. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
According to engineer Ana María Rodríguez, the current (1) challenge in petroleum engineering is…
(1) el desafío
2. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
…the current challenge in petroleum engineering is to find ways to (2) extract oil without negatively affecting the environment.
(2) extraer
3. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
NASA scientists want (3) to explore the possibility of life on Mars…
(3) explorar
4. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
Environmental groups, such as Greenpeace, assure that it is absolutely necessary (4) to stop global warming to avoid a global catastrophe.
(4) frenar
5. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
The Maserati Grand Sport model has won several international awards for best design and best (5) performance.
(5) funcionamiento.
6. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
A series of (6) gene therapy experiments could allow future parents to choose their children’s sex and some physical characteristics.
(6) terapia genética
7. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
Companies that make cars wonder if Americans will be able to (7) adapt to…
(7) adaptarse
8. Let’s complete the sentences with the following words:
1.adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
…, (8) to protect the environment while saving money.
(8) proteger
9. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
Engineer Oleg Kononenko of the International Space Station (ISS) had to (9) assemble the parts of…
(9) ensamblar
10. Let’s complete the sentences with the following words:
1. adaptarse (adapt)
2. el desafío (the challenge)
3. ensamblar (join)
4. explorar (to explore)
5. extraer (extract)
6. frenar (to stop)
7. funcionamiento (functioning)
8. la propuesta (the proposal)
9. proteger (to protect)
10. rescatar (rescue)
11. terapia genética (gene therapy)
Environmental group AIRE is planning an expedition to the Amazon to try to (10) rescue Dr. Pierce,…
(10) rescatar
Realidades 4 Capitulo 12 Answers Page 273
1. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
1. g. I’m Legend with the actor Will Smith is the most exciting movie of the decade.
1. g. Soy leyenda con el actor Will Smith es la película más emocionante de la década.
2. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
2. f. Picasso is the most famous artist of the 20th century.
2. f. Picasso es el artista más famoso del Siglo XX.
3. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
3. e. The assistance of automatons in surgery is the most crucial scientific advance in recent years.
3. e. La asistencia de autómatas en la cirugía es el avance científico más crucial de los últimos años.
4. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
4. h. Yosemite is the most beautiful national park in the country.
4. h. Yosemite es el parque nacional más hermoso del país.
5. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
5. d. Ours is the most interesting class in the university.
5. d. La nuestra es la clase más interesante de la universidad.
6. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
6. c. Alpha Centaur by Isaac Asimov is the most intriguing science fiction novel.
6. c. Alfa Centauro de Isaac Asimov es la novela más intrigante de ciencia ficción.
7. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
7. e. Finding a cure for AIDS is the most important field of research in medicine.
7. e. Encontrar una cura para el SIDA es el campo de investigación más importante de la medicina.
8. Let’s combine the following places, people, and things to create superlative descriptions:
1. I’m Legend with the actor Will Smith
2. Picasso
3. the assistance of automatons in surgery
4. Yosemite
5. the ours
6. Alpha Centaur by Isaac Asimov
7. find a cure for AIDS
8. Detroit’s
a. progress / scientific / crucial / recent years b. the factory / big / all c. novel / scheming / science fiction d. the class / interesting / university or school e. the field of research / important / medicine f. the artist / famous / 20th century g. the movie / exciting / decade h. the national park / beautiful / country
Section 1: Se for unplanned events
Realidades 4 Capitulo 12 Answers Page 275
1. Let’s complete the conversation with the appropriate direct and indirect pronouns.
SRA. ORDÓÑEZ: Did you forget to do it?
(1) Se
2. Let’s complete the conversation with the appropriate direct and indirect pronouns.
SRA. ORDÓÑEZ: Did you forget to do it?
(2) te
3. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: I couldn’t make copies because the copier broke this morning.
(3) se
4. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: I couldn’t make copies because the copier broke this morning.
(4) me
5. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: We were talking on the phone when the connection was cut off.
(5) se
6. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: We were talking on the phone when the connection was cut off.
(6) nos
7. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: I don’t have it, it stayed at home.
(7) se
8. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: I don’t have it, it stayed at home.
(8) me
9. Let’s complete the conversation with the appropriate direct and indirect pronouns.
SRA. ORDÓNEZ: And didn’t you think of writing an email?
(9) se
10. Let’s complete the conversation with the appropriate direct and indirect pronouns.
SRA. ORDÓNEZ: And didn’t you think of writing an email?
(10) te
11. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: I can’t, because I lost the password to access the program.
(11) se
12. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: I can’t, because I lost the password to access the program.
(12) me
13. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: The secretaries were trying to move it this morning when they dropped it.
(13) se
14. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: The secretaries were trying to move it this morning when they dropped it.
(14) les
15. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: His son got sick.
(15) Se
16. Let’s complete the conversation with the appropriate direct and indirect pronouns.
LUZ: His son got sick
(16) le
Realidades 4 Capitulo 12 Answers Page 276
1. You have to complete the sentences with the appropriate pronouns and the present indicative or subjunctive of the verbs.
My wife and I need locks that only require a password because we frequently (lose/get lost) our house keys.
1. se nos pierden.
2. You have to complete the sentences with the appropriate pronouns and the present indicative or subjunctive of the verbs.
I want an automaton to prepare dinner for me because my food always (burns.)
2. se me quema.
3. You have to complete the sentences with the appropriate pronouns and the present indicative or subjunctive of the verbs.
I am going to buy an electronic diary for my oldest son so that he does not (forget) what he has to do for his classes.
3. se le olvide.
4. You have to complete the sentences with the appropriate pronouns and the present indicative or subjunctive of the verbs.
I will buy a cell phone for my daughters as long as they don’t think of using it for more than five minutes a day.
4. se les ocurra.
5. You have to complete the sentences with the appropriate pronouns and the present indicative or subjunctive of the verbs.
We must buy a new computer before the one we have broken down.
5. se nos estropee.
6. You have to complete the sentences with the appropriate pronouns and the present indicative or subjunctive of the verbs.
I would like to have a robot that will follow my children and repair everything they break – they drop everything!
6. se les cae
Realidades 4 Capitulo 12 Answers Page 277
1. You have to complete the paragraphs with the appropriate verbs and pronouns from the list. Mr. Núñez explains why he is going to replace his employees with a robotic system.
Se te cayeron (dropped) Se me ocurrió (it ocurred to me) Se te perdió (lost) Se me quemaron (burned) Se rompió (broke) Se nos terminó (over)
Colleagues, I am sorry to tell you that now that the new millennium has begun, (1) it occurred to me to robotize the factory.
(1). se me ocurrió.
2. You have to complete the paragraphs with the appropriate verbs and pronouns from the list. Mr. Núñez explains why he is going to replace his employees with a robotic system.
Se te cayeron (dropped) Se me ocurrió (it ocurred to me) Se te perdió (lost) Se me quemaron (burned) Se rompió (broke) Se nos terminó (over)
The age of human labor is (2) over for us. To compete with the big companies, we must use the most efficient production methods, and automata have no flaws like human beings.
(2) se nos terminó.
3. You have to complete the paragraphs with the appropriate verbs and pronouns from the list. Mr. Núñez explains why he is going to replace his employees with a robotic system.
Se te cayeron (dropped) Se me ocurrió (it ocurred to me) Se te perdió (lost) Se me quemaron (burned) Se rompió (broke) Se nos terminó (over)
A few months ago, you did not clean the equipment after using it and a machine (3) broke.
(3). se rompió.
4. You have to complete the paragraphs with the appropriate verbs and pronouns from the list. Mr. Núñez explains why he is going to replace his employees with a robotic system.
Se te cayeron (dropped) Se me ocurrió (it ocurred to me) Se te perdió (lost) Se me quemaron (burned) Se rompió (broke) Se nos terminó (over)
David, you are a bit clumsy. Last week you (4) dropped more than ten products.
(4) se te cayeron.
5. You have to complete the paragraphs with the appropriate verbs and pronouns from the list. Mr. Núñez explains why he is going to replace his employees with a robotic system.
Se te cayeron (dropped) Se me ocurrió (it ocurred to me) Se te perdió (lost) Se me quemaron (burned) Se rompió (broke) Se nos terminó (over)
Matilde, yesterday we couldn’t get into the storehouse because you (5) lost the key.
(5) se te perdió.
6. You have to complete the paragraphs with the appropriate verbs and pronouns from the list. Mr. Núñez explains why he is going to replace his employees with a robotic system.
Se te cayeron (dropped) Se me ocurrió (it ocurred to me) Se te perdió (lost) Se me quemaron (burned) Se rompió (broke) Se nos terminó (over)
And they have dangerous vices! A few days ago, some important documents were (6) burned because someone left a cigarette on my desk. I’m really sorry, but I’d better try the automata to see if there will be less problems.
(6) se me quemaron.
Realidades 4 Capitulo 12 Answers Page 279
1. Dr. Rojas is an astrophysicist who is working on many projects for the new millennium. You have to complete the sentences with the following words:
Cohete (rocket) Conjetura (guess) Nave espacial (spaceship) Órbita (orbit) Renombrado (renowned) Superficie (surface)
Dr. Rojas, the famous (1) renowned scientific,
(1) renombrado.
2. Dr. Rojas is an astrophysicist who is working on many projects for the new millennium. You have to complete the sentences with the following words:
Cohete (rocket) Conjetura (guess) Nave espacial (spaceship) Órbita (orbit) Renombrado (renowned) Superficie (surface)
…has a proposal to design a (2) rocket cheaper than those used now for space travel.
(2) cohete.
3. Dr. Rojas is an astrophysicist who is working on many projects for the new millennium. You have to complete the sentences with the following words:
Cohete (rocket) Conjetura (guess) Nave espacial (spaceship) Órbita (orbit) Renombrado (renowned) Superficie (surface)
Dr. Rojas is studying the possibility of sending a (3) spaceship to Mars,
(3) nave espacial
4. Dr. Rojas is an astrophysicist who is working on many projects for the new millennium. You have to complete the sentences with the following words:
Cohete (rocket) Conjetura (guess) Nave espacial (spaceship) Órbita (orbit) Renombrado (renowned) Superficie (surface)
…landing on the planet’s (4) surface.
(4) superficie.
5. Dr. Rojas is an astrophysicist who is working on many projects for the new millennium. You have to complete the sentences with the following words:
Cohete (rocket) Conjetura (guess) Nave espacial (spaceship) Órbita (orbit) Renombrado (renowned) Superficie (surface)
Doctor Rojas wants to find out if there is water on Mars. His (5) conjecture is that there are areas of ice at the poles of the planet.
(5) conjetura
6. Dr. Rojas is an astrophysicist who is working on many projects for the new millennium. You have to complete the sentences with the following words:
Cohete (rocket) Conjetura (guess) Nave espacial (spaceship) Órbita (orbit) Renombrado (renowned) Superficie (surface)
He hopes that his spaceship will reach the (6) orbit of Mars before the year 2015.
(7) órbita.
Realidades 4 Capitulo 12 Answers Page 280
1. Complete the sentences with the following words. You must make the appropriate verb change.
Cometa (comet) Especular (speculate) Predicción (prediction) Profecía (prophecy) Sistema solar (solar system) Trayectoria (trajectory)
Making a prediction is an attempt to prognostic the future but without scientific data.
1. predicción.
2. Complete the sentences with the following words. You must make the appropriate verb change.
Cometa (comet) Especular (speculate) Predicción (prediction) Profecía (prophecy) Sistema solar (solar system) Trayectoria (trajectory)
With the help of science, people can make a prophecy about some things that may happen in the future.
2. profecía.
3. Complete the sentences with the following words. You must make the appropriate verb change.
Cometa (comet) Especular (speculate) Predicción (prediction) Profecía (prophecy) Sistema solar (solar system) Trayectoria (trajectory)
For example, we know that the orbit of Halley’s Comet brings it closer to Earth every 75 to 76 years.
3. cometa
4. Complete the sentences with the following words. You must make the appropriate verb change.
Cometa (comet) Especular (speculate) Predicción (prediction) Profecía (prophecy) Sistema solar (solar system) Trayectoria (trajectory)
Halley’s trajectory will mean that the next time it returns will be in the year 2061.
4. trayectoria.
5. Complete the sentences with the following words. You must make the appropriate verb change.
Cometa (comet) Especular (speculate) Predicción (prediction) Profecía (prophecy) Sistema solar (solar system) Trayectoria (trajectory)
Before, when people didn’t know anything about astronomy, it was speculated that Halley was a bad omen.
5. especulaba
6. Complete the sentences with the following words. You must make the appropriate verb change.
Cometa (comet) Especular (speculate) Predicción (prediction) Profecía (prophecy) Sistema solar (solar system) Trayectoria (trajectory)
We now know that there are many objects like Halley in our solar system.
6. sistema solar.
Realidades 4 Capitulo 12 Answers Page 281
1. You have to complete the sentences with from or since as appropriate.
Many astronomers research techniques to predict when the next meteorite will hit Earth. It is known that there have been many (1) since there are craters.
(1) puesto que
2. You have to complete the sentences with from or since as appropriate.
…(2) from the extreme north to the extreme south of the Earth.
(2). desde
3. You have to complete the sentences with from or since as appropriate.
In 2007, one crashed in a remote region of Peru and formed a crater that ranged (3) from fifteen meters wide to ten meters deep.
3. desde
4. You have to complete the sentences with from or since as appropriate.
(4) Since the crash, hundreds of residents of the region have complained of nausea and severe headaches.
(4) Desde
5. You have to complete the sentences with from or since as appropriate.
Although at first it was feared that harmful gases would come out of the meteorite, it soon became clear that they were gases from Earth, (5) since the meteorite had crashed with an arsenic vein.
5. puesto que
6. You have to complete the sentences with from or since as appropriate.
Scientists studying the crash now use respirators and oxygen tanks (6) since noxious gases are still in the area.
(6) puesto que
Section 2: The passive voice
Realidades 4 Capitulo 12 Answers Page 282
1. You have to write sentences with the passive voice.
telescope / invent / Galileo Galilei.
The telescope was invented by Galileo Galilei.
1. El telescopio fue inventado por Galileo Galilei.
2. You have to write sentences with the passive voice.
black holes / discover / Stephen Hawking.
Black holes were discovered by Stephen Hawking.
2. Los agujeros negros fueron descubiertos por Stephen Hawking.
3. You have to write sentences with the passive voice.
solar energy / use / first time / in 1878.
Solar energy was used for the first time in 1878.
3. La energía solar fue utilizada por primera vez en 1878
4. You have to write sentences with the passive voice.
first artificial satellite, Sputnik, / build / in Korolev
The first artificial satellite, Sputnik, was built in Korolev.
4. El primer satélite artificial, Sputnik, fue construido en Korolev.
5. You have to write sentences with the passive voice.
theory of relativity / propose / Albert Einstein.
The theory of relativity was proposed by Albert Einstein.
5. La teoría de la relatividad fue propuesta por Albert Einstein.
6. You have to write sentences with the passive voice.
galaxies NGC 4261 and M100 / photograph / the Hubble telescope.
The galaxies NGC 4261 and M100 were photographed by the Hubble telescope.
6. Las galaxias NGC 4261 y M100 fueron fotografiadas por el telescopio Hubble.
7. You have to write sentences with the passive voice.
meteorite from / Mars / analyze / in a North American laboratory.
The meteorite from Mars was analyzed in a North American laboratory.
7. El meteorito proveniente de Marte fue analizado en un laboratorio norteamericano.
8. You have to write sentences with the passive voice.
existence of other planets / outside / our solar system / verify / scientists from Harvard and San Francisco State University.
The existence of other planets outside our solar system was verified by scientists from Harvard and San Francisco State University.
8. La existencia de otros planetas fuera de nuestro sistema solar fue verificada por científicos de Harvard y de la universidad estatal de San Francisco.
Realidades 4 Capitulo 12 Answers Page 283
1. You have an idea for a fiction movie and you want to send it to a famous Hollywood director. You have to complete the summary of what happens in your movie with the passive voice in the past of the following verbs.
Alertar (alert) Derribar (shoot down) Donar (donate) Monitorizar (monitor) Tomar (take)
In the science fiction movie Meteorite, a meteor approaching Earth (1) was monitored by scientists at the university observatory.
1. fue monitoreado.
2. You have an idea for a fiction movie and you want to send it to a famous Hollywood director. You have to complete the summary of what happens in your movie with the passive voice in the past of the following verbs.
Alertar (alert) Derribar (shoot down) Donar (donate) Monitorizar (monitor) Tomar (take)
The authorities of the cities in danger (2) were alerted and…
2. fueron alertadas
3. You have an idea for a fiction movie and you want to send it to a famous Hollywood director. You have to complete the summary of what happens in your movie with the passive voice in the past of the following verbs.
Alertar (alert) Derribar (shoot down) Donar (donate) Monitorizar (monitor) Tomar (take)
and some precautions (3) were taken; so no one was injured.
3. fueron tomadas
4. You have an idea for a fiction movie and you want to send it to a famous Hollywood director. You have to complete the summary of what happens in your movie with the passive voice in the past of the following verbs.
Alertar (alert) Derribar (shoot down) Donar (donate) Monitorizar (monitor) Tomar (take)
however, many buildings and houses (4) were shoot down by the meteorite.
4. fueron derribados
5. You have an idea for a fiction movie and you want to send it to a famous Hollywood director. You have to complete the summary of what happens in your movie with the passive voice in the past of the following verbs.
Alertar (alert) Derribar (shoot down) Donar (donate) Monitorizar (monitor) Tomar (take)
Millions of dollars (5) were donated by the government to rebuild these towns.
5. fueron donados.
Section 3: Diminutives and augmentatives
Realidades 4 Capitulo 12 Answers Page 285
1. You have to complete the sentences with the diminutives and augmentations of the underlined words, in this case, I will put them in italics, depending on the context.
The cars will probably be very small because they will use less gas than the little cars that were popular in the past.
1. cochecitos
2. You have to complete the sentences with the diminutives and augmentations of the underlined words, depending on the context. In this case, I will put them in italics.
The phones will be compact. The success of cellular technology will make people prefer small phones that they can carry in their pocket over the phones that we use now.
2. telefonitos telefonotes
3. You have to complete the sentences with the diminutives and augmentations of the underlined words, depending on the context. In this case, I will put them in italics.
Computers will continue to evolve. The computers that we have in our offices and homes will be replaced by laptops.
3. computadorzones
4. You have to complete the sentences with the diminutives and augmentations of the underlined words, depending on the context. In this case, I will put them in italics.
TVs will be bigger than ever. Everyone will want to swap their TVs for giant screen TVs.
4. televisorcitos televisorsotes.
5. You have to complete the sentences with the diminutives and augmentations of the underlined words, depending on the context. In this case, I will put them in italics.
The houses will be smaller. With the overpopulation of the world, there will be no room for these houses that we have now, and we will all live in little houses.
5. casotas. casitas
Realidades 4 Capitulo 12 Answers Page 286
1. You have to complete the following article with the diminutive or augmentative of the words on the list, depending on the context.
Fosil (fossil) Meteoros (meteors) Planeta (planet) Problema (problema) Trozo (piece)
Is there life in other parts of the universe? Many scientists will dedicate themselves to the study of this great (1) problem in the new millennium.
1. problema
2. You have to complete the following article with the diminutive or augmentative of the words on the list, depending on the context.
Fosil (fossil) Meteoros (meteors) Planeta (planet) Problema (problema) Trozo (piece)
We don’t have firm evidence yet, but there are signs that point to the possibility of extraterrestrial life. There are huge meteors in space, but as they enter the Earth’s atmosphere, their size is reduced and they become (2) meteors.
2. meteoros
3. You have to complete the following article with the diminutive or augmentative of the words on the list, depending on the context.
Fosil (fossil) Meteoros (meteors) Planeta (planet) Problema (problema) Trozo (piece)
Some of those that have fallen on Earth have been analyzed and small (3) fossils have been found inside them that seem to come from bacteria.
3. fósiles
4. You have to complete the following article with the diminutive or augmentative of the words on the list, depending on the context.
Fosil (fossil) Meteoros (meteors) Planeta (planet) Problema (problema) Trozo (piece)
A satellite of Jupiter will be studied because it is believed that there is water underneath the huge (4) pieces of ice that cover the surface.
4. trozos
5. You have to complete the following article with the diminutive or augmentative of the words on the list, depending on the context.
Fosil (fossil) Meteoros (meteors) Planeta (planet) Problema (problema) Trozo (piece)
It is known that there are other (5) planet systems in the universe, and perhaps some of these bodies have the necessary conditions to support life forms. So far only huge planets, larger than Jupiter, have been detected, but it can be assumed that there are also smaller planets. These discoveries do not prove the presence of extraterrestrial life, but they do show that it is worth looking for.
5. planetas
Realidades 4 Capitulo 12 Answers Page 289
1. What do you know about space exploration? What do you know about the planet Mars? Read the following questions and answer them to the best of your knowledge.
Who was the first man to walk on the moon? The first man to walk on the moon was Neil Armstrong.
El primer hombre que caminó en la luna fue Neil Armstrong.
2. What do you know about space exploration? What do you know about the planet Mars? Read the following questions and answer them to the best of your knowledge.
Why is Mars called the red planet? It is called the red planet because of the color of the rusty iron on its soil.
Se lo llama planeta rojo por el color que tiene el hierro oxidado en su suelo.
3. What do you know about space exploration? What do you know about the planet Mars? Read the following questions and answer them to the best of your knowledge.
Which planet is closest to the sun? Mercury is the planet closest to the sun.
Mercurio es el planeta más cercano al sol.
4. What do you know about space exploration? What do you know about the planet Mars? Read the following questions and answer them to the best of your knowledge.
What is the biggest planet in the solar system? Jupiter is the biggest planet in the solar system.
Júpiter es el planeta más grande del sistema solar.
Realidades 4 Capitulo 12 Answers Page 290
1. You have to read the article and complete the sentences with the information based on the reading.
Among the challenges of the 21st century will be the exploration of our solar system.
la exploración de nuestro sistema solar.
2. You have to read the article and complete the sentences with the information based on the reading.
We have sent both human and robotic explorers to other planets in our solar system.
humanos como robóticos a otros planetas de nuestro sistema solar.
3. You have to read the article and complete the sentences with the information based on the reading.
One of the most successful missions was the result of the Viking project of the North American National Space Agency (NASA).
resultado del proyecto Viking de la agencia nacional espacial norteamericana (NASA).
4. You have to read the article and complete the sentences with the information based on the reading.
The tradition of robotic exploration continues with the Phoenix ship.
Phoenix.
5. You have to read the article and complete the sentences with the information based on the reading.
Robotic missions help us send astronauts to Mars.
ayudarnos a enviar astronautas a Marte.
