Bài tập bổ trợ Tiếng Anh Lớp 8 Global Success - Unit 11: Science and technology (Kèm đáp án)

 1. Face ____________ is becoming more and more accurate. 
2. It is interesting at parties to see how people ____________ socially. 
3. Industrial ____________ are replacing people. 
4. ____________ rooms are useful in an online training session to enable practice in small groups.
5. We have spoken on the phone but never ____________. 
6. You need a fast Internet ____________. 
7. Click on this link to visit our ____________ bookstore. 
8. ____________ studies have shown that users rarely look at display advertisements on web pages. 
9. In the second ____________ they obtained a very clear result. 
10. The police have taken ____________ from every man in the neighborhood.
III. Complete the sentences with the correct form of the verbs given.
 interact motivate take discover create
 concentrate scan develop invent mark
1. Scientists have ____________ how to predict an earthquake. 
2. I am going to ____________ on my writing for a while. 
3. Teachers often spend a lot of time ____________ exam papers. 
4. He does not ____________ well with the other students. 
5. I wish someone would ____________ an everlasting light bulb. 
6. He is looking for a job which will allow him to ____________ his talents. 
7. He ____________ a wonderful meal from very few ingredients yesterday. 
8. The police questioned Jack and ____________ his fingerprints. 
9. I’ll ____________ the article into the computer. 
10. Teaching is all about ____________ people to learn.
IV. Use the correct form of the words given to complete the sentences.
1. Some types of computer games can be ____________. (educate) 
2. Smartphones can vary from day to day due to new ____________ by different companies in the world. 
(invent) 
3. The ____________ of a nuclear power plant costs a lot of money. (construct) 
4. Space ____________ brings about many benefits to science. (explore) 
5. Life is become easy and ____________ through science and technology. (comfort) 
6. Nuclear waste is ____________ for both humans and the environment. (harm) I. Choose the correct words.
1. “I’m 15.” She said she is / was 15.
2. “We’re chatting.” They told us they have been / were chatting.
3. “You didn’t tell the truth.” He said I not to tell / hadn’t told the truth.
4. “I’ve told a lie.” She said she had told / told a lie
5. “I won’t feel guilty, Jack.” I said / told Jack I wouldn’t feel guilty.
6. “I won’t do it again.” He said he won’t / wouldn’t do it again.
II. Complete these exchanges with the correct form of say or tell.
1. “What did the doctor ____________ to you earlier?” - “He ____________ me that I would get better 
soon.”
2. “Did we ____________ you about our expedition to the mountains?” - “No, you ____________ that 
you would talk to us about it later. ”
3. “Nick ____________ that he would stay at home today.” - “That’s strange. He ____________ me that 
he was going out.”
4. “Jane ____________ that she could call you this evening.” - “Yes, she wants to ____________ me 
about the school trip.”
5. “Have I ____________ you about my trip to Hoi An?” - “Yes, you ____________ that it was 
wonderful.”
III. Complete the reported statements.
1. “I don’t have to go.” 
 Tom said that he ____________ go.
2. “He’s telling a lie.” 
 I told you that he ____________ a lie.
3. “We’ll help you.” 
 They said that they ____________ help us.
4. “It rained all day.” 
 Dad said that it ____________ all day.
5. “I’ve been to Italy.” 
 He told me that he ____________ to Italy.
6. “You don’t look well.” 
 Linda said that I ____________ well. __________________________________________________________________________________
6. The children said, “Our teacher can be quite strict.”
__________________________________________________________________________________
7. His friends said to him, “We’ve already seen that film.”
__________________________________________________________________________________
8. John said, “I’ll report my neighbour to the police for making very loud noise at night.”
__________________________________________________________________________________
VI. Change the sentences into reported speech.
1. The scientist: “Cloning will become more popular in the next century.” 
 The scientist said that _____________________________________________________________.
2. Dr. Nelson: “Every home will have at least one robot to perform any boring task.” 
 Dr. Nelson said that _______________________________________________________________.
3. Our teacher: “Parents do not allow children to play computer games for a long period of time.” 
 Our teacher told us that ___________________________________________________________.
4. The doctor: “Nutrition pills can cause serious side effects.” 
 The doctor told his patient that _____________________________________________________.
5. The physicist: “Nuclear power plants don’t require a lot of space.” 
 The physicist said that _____________________________________________________________.
6. The politician: “Wrong decisions in Chernobyl caused a big nuclear explosion.” 
 The politician told the audience that __________________________________________________.
VII. Read the conversation between Duong and Chau, and then report what Chau told her friend, 
using reported speech.
Duong: You know, Alexander Graham Bell invented the telephone in 1876. 
Chau: Many people think that the real inventor of the telephone was Antonio Meucci, a poor Italian 
American. 
Duong: Really? How could he do that? 
Chau: He shared a workshop with Bell in the 1860s, and made a “talking telegraph” for his wife, who 
was ill in bed. 
Duong: Why didn’t Meucci become the inventor? 
Chau: He didn’t become the inventor because he never took his idea to the US Patent Office. 
Duong: Why not? Some people enjoy getting lost on holiday, but 3 __________. My map app is probably the app 
4 __________. Apart from showing your current location, it can show you how to get somewhere, or 
which shops and restaurants are nearby.
And while we’re talking about restaurants, don’t forget to install a review app. 5 __________ before I 
walk into a restaurant. Many of these apps also provide a reservation service.
Finally, if your airline has an app, put it on your phone. You can keep your boarding cards on your phone 
and keep up-to-date with any changes or delays to your flight. Enjoy your trip.
II. Read the passage about a smart home, and do the tasks that follow.
 A Home of the Future
Dr. Michiko Ishiguru describes a typical day at her smart home in Tokyo.
7.00 I wake up. The lights are on and I can hear my favourite music. The curtains open automatically, 
 too. It is cold outside but my bedroom is warm.
7.05 I get up and go to the bathroom. I watch the TV in my intelligent shower - it knows my favourite 
 water temperature.
7.20 My mother and I have breakfast. We have fruit - my intelligent fridge orders food from the 
 Internet. It knows when we need food, like milk or fruit.
7.45 I programme my vacuum cleaner, Homebot, to clean the floor. I put tonight’s dinner in the 
 intelligent oven. I can check the dinner with my mobile phone.
8.00 I go out. I go to work in my PIVO 2 car - it talks and gives me traffic information. My mother stays 
 with Wakamaru, our intelligent robot. It looks after her and phones me when she is not well.
18.00 I get back home. I ride my exercise bike - it has got a computer. I can choose different routes 
 and today I go cycling in the Alps!
19.00 Dinner is ready in the intelligent oven. Great!
20.00 We watch a film on the home cinema in the living room.
23.30 I go to bed and read an e-book. Then I go to bed.
Task 1. Match the machines (1-7) with the descriptions (A-H). There is one extra description. Write 
the answer in each blank.
 1. Wakamaru domestic robot _____ A. cleans the floor
 2. intelligent oven _____ B. looks after animals
 3. exercise bike with computer _____ C. orders food on the Internet popular in the USA too, and got a new name: “Rubik’s Cube”. It is the world’s best-selling toy - some 
people say there are 300 million cubes in the world. Rubik became very rich and went on to invent 
many more games and puzzles.
IV. Read the passage carefully, and then answer the questions below.
 Becky Schroeder, Gio-Sheet
Becky was only 10 years old when she was attempting to do homework in her mom's car. As it got 
darker outside, she had the idea that there should be a way to make her paper easier to see in the dark. 
Becky took matters into her own hands and began playing around with phosphorescent materials, 
which emitted light but without heat. She then used phosphorescent paint to cover an acrylic board 
and the Glow-Sheet was created.
In 1974, at the age of 12, Becky became the youngest women to be granted a U.S. patent for her Gio-
Sheet invention.
1. What happened while she was doing homework in her mom’s car?
___________________________________________________________________________________
2. Why did Becky have the idea of the Gio-Sheet?
___________________________________________________________________________________
3. What did she do to make the first Gio-Sheet?
___________________________________________________________________________________
4. What is one advantage of her invention?
___________________________________________________________________________________
5. How old was Becky when she became the youngest women to be granted a U.S. patent?
___________________________________________________________________________________
V. Read the text, and do the tasks that follow.
Thomas Suarez is an American teenager and he spends a lot of time on his computer. Why is this 
surprising? Because he isn’t playing games or chatting to his friends. In fact, he’s developing and 
designing new apps, or writing codes and programmes for smartphone apps. He’s the youngest app 
developer in the world.
When he was just 11 years old, Thomas started his own company called CarrotCorp. In 2010, he released 
his first app called Earth Fortune. It tells people their horoscope and depending on the horoscope for a 
particular day, the colour of the Earth changes. By the age of 15, he had plans and designs for a 3D 
printer. His printer will be ten times faster than other 3D printers. now uses to stop serious illness.
Here are a few examples of inventions that were made by mistake:
Sticky notes
In 1968, scientist Spencer Silver created a type of glue that would stick to things but could be removed 
easily from any surface. He was really trying to create a super-strong glue but failed. Art Fry, another 
scientist, was tired of his bookmarks falling out of his books. He remembered Silver’s special glue and 
wondered if this might be the answer to his problem. When he tried the glue on his bookmarks, they 
stuck and didn’t damage the pages. It worked. It was then that he thought of the idea of using the glue 
on notes.
Saccharine
Saccharine was discovered in 1879 by the chemist Constantine Fahlberg while he was working in his 
university laboratory. The discovery came because he forgot to wash his hands after spilling a chemical 
on them, and when he was eating his bread at lunch it tasted unusually sweet. It was later produced in 
huge quantities as an artificial sweetener and is now used in soft drinks to reduce the sugar and calories.
Penicillin
Scientist Alexander Fleming invented penicillin, which helps stop infection by killing bacteria. He was 
on holiday and he had left a petri dish (a special dish used by scientists to grow bacteria) in his 
laboratory. When he returned, the dish had an unusual mould on it, but there were no bacteria 
growing. He realised that something in the mould was killing the bacteria. He also realised that if you 
use this substance on the human body, it stops serious illness. This became the first antibiotic, penicillin, 
which has saved millions of people’s lives over the years.
Chocolate chip cookies
In the 1930s, Ruth Wakefield owned a very popular restaurant called the Toll House Inn in the United 
States. While making some chocolate cookies, she discovered she had no special baker’s chocolate left 
and decided to use some normal chocolate instead. She poured it into the dough, but the chocolate did 
not mix with the dough and this was how the chocolate chip cookie was born.
Task 1. Read the text and complete the sentences with one or two words in each space.
1. Silver Spencer was trying to make a glue that was easy to take off and didn’t _________________ 
the paper or pages it was stuck to. 
2. Art Fry found that the glue didn’t make the pages of his books dirty and so was very good for 
_________________. Rooms will be smaller than today but furniture like beds, tables and chairs will come out of the floors 
and walls when we want to use them. Again, the computer will do this for us.
Some experts predict that computers will control the entire world in the future, so perhaps they might 
decide to shut us in our little boxes forever! There’s a thought.
1. We may live on the moon in the future. __________
2. Our energy will all come from oil. __________
3. Our houses will have no doors. __________
4. We will order our shopping on the computer. __________
5. We will sleep on the floors. __________
VIII. Read the text and answer the questions.
 Dr. NakaMats
The Japanese love inventing and they are very good at it. But there is one inventor who has invented 
more things than anyone else in Japan, and maybe the world. Yoshiro Nakamatsu, or Dr. NakaMats as 
he calls himself, has the world record for the most inventions. He has designed over 4,000 new 
inventions over the last fifty years or so. He is a celebrity in Japan, and has appeared on TV with his 
creations. Although Dr. NakaMats did some early designs for a floppy disk and a digital watch, he is 
most well-known for his more unusual inventions.
Some examples of the strange things he has created are: glasses which look like eyes so you can’t notice 
them, shoes which have steel springs so that you can jump in them, a pillow which stops you from 
falling asleep when you are driving, an aluminum mechanism which lifts up a toilet seat, and even a 
one-person plastic car which is powered by water.
How does he come up with these ideas? Apparently, he finds listening to Beethoven helpful. But the 
thing that makes him most creative is holding his breath underwater. He dives into his swimming pool 
every day and stays underwater as long as he can. He believes that less oxygen in the brain is good for 
new ideas. He also dives with a waterproof pencil and rubber notebook which he invented. He needs 
to write down his ideas immediately in the water because they disappear quickly.
Dr. NakaMats believes that eating the right food is important for creativity, and he has invented some 
snacks that he says are good for your brain. He has also invented an armchair which helps to improve 
your brainpower. He sits in his chair every day to give him more good ideas.
1. How many new things has Dr. NakaMats invented?
___________________________________________________________________________________