1.They believe in the near future most of us have home robots.
=> had
2.We know that Motorola is the first to launch mobile phone.
=> was
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Review 4 (Units 10- 11- 12)
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A. A mobile phone, also known as a cell phone, is one that we can use to make telephone calls to anyone from a great distance via a radio link. Apart from telephony, modern smart mobile phones also support a number of other services including text messaging, internet access, gaming, photography, and many business applications.
The first cell phone weighed about 2 kilograms and was demonstarted in 1973 by Dr. Martin Cooper and John F. Mitchell of Motorola. Ten years later, in 1983, the first mod...
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A. A mobile phone, also known as a cell phone, is one that we can use to make telephone calls to anyone from a great distance via a radio link. Apart from telephony, modern smart mobile phones also support a number of other services including text messaging, internet access, gaming, photography, and many business applications.
The first cell phone weighed about 2 kilograms and was demonstarted in 1973 by Dr. Martin Cooper and John F. Mitchell of Motorola. Ten years later, in 1983, the first model of cell phone went on sale to the public. By 2011, over six billion people, 87% of the world's population, used mobile networks. In spite of the many advantages a cell phone has, it also brings about several problems that users should be awave of. Mobile phone radiation is believed to be harmful to human health. Some recent studies have found an association between cell phone use and certain kinds of brain disease. Another serious problem can be privacy and tracking. Once users have the phone on, they can be interrupted in many ways, and they can also be tracked by location data.
| Statements | T | F |
| 1. A cell phone is like a cordless phone that is used within a short range of a base station. | ||
| 2. The first cell phone was on sale a decade after the first cell phone was demonstrated. | ||
| 3. A mobile phone can be harmful to users due to its radiation. | ||
| 4. A cell phone does not affect users' privacy by any means. | ||
| 5. The main idea of the passage is to persuade people not to use cell phones. |
B. Texting is a new way of exchanging information, and it is becoming more and more popular among the young. In fact, texting is clearly affecting on the language. There are no rules for it. We are creating a new aspect of vocabulary and opening up a new kind of playful and that's fine, but some people are worried about the affects it might have on child' ability to read and write. But not everyone is so worried. An expert says, "Every time a new medium comes along, it has an effect on language... but this doesn't destroy the existing language, it adds to it". In text massages, words may come from shorthand created in email such as CUS (See you soon) and so on. Someone says, "Mostly they are original, but sometimes you get a class os meanings. For example, LOL can mean both Laugh Out Loud and Lots of Love. That could lead to some misunderstanding."
1. There are no rules for texting. ..........
2. Texting is always affecting language in a bad. ..........
3. Everyone is worried about message. ..........
4. Sometimes, there is more than one way of understanding a message. ..........
In each of the following sentences there is ONE mistake. underline it and correct it.
1. We saw the students were playing near the swimming pool.
2. They have built their house for last month.
3. How careless the driver drives!
4. The long explaination made the students bored.
5. My study is getting on satisfactory.
6. I can srill remember see that film when i was a child.
Most of us think that great ideas were the result of genius thinking. However, many of the greatest discoveries and inventions in history began with very simple beginnings. In the 18th century, James Watt was boiling water at home. As the water began to boil, he suddenly noticed that the steam wass pushing the lid of the kettle. From this, he created the steam engine. In ancident Greece time, Archimedes stepped into a bath tub and felt that water was being pushed out when he stepped in. This is...
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Most of us think that great ideas were the result of genius thinking. However, many of the greatest discoveries and inventions in history began with very simple beginnings. In the 18th century, James Watt was boiling water at home. As the water began to boil, he suddenly noticed that the steam wass pushing the lid of the kettle. From this, he created the steam engine. In ancident Greece time, Archimedes stepped into a bath tub and felt that water was being pushed out when he stepped in. This is how he came up with the idea of how to find the purity of gold. In the 17th century, Isaac Newton was sitting under a tree when an apple fell and hit him on the head. This í when he realized the pulling force of the earth - the gravity.
There are many other examples of how great ideas began with simple beginnings. What one needs to become an inventor are careful observation and a lot of hard work.
1. Jame Watt lived in _____.
A. the 17th century. B. the 18th century. C. the ancient Greece time
2. Archimedes came up with the idea of how to find purity gold when _____.
A. he was boiling water. B. he was hit by an apple. C. he was stepping into the bath tub.
3. Many great ideas began with _____.
A. genius thinking. B. simple beginnings C. long time working in laboratories.
4. Which of the following is NOT true of inventors?
A. They have simple thinkings. B. They have very careful observations. C. They work extremely hard.
5. Which of the following can be the best title for the passage?
A. James Watt, Archimedes and Isaac Newton. B. Steam Engines, Gold and Gravity. C. Great Ideas with Simple Beginnings.
If you invented something important, (1)........ would want to make money out of (2) ........ , right? Most of us would want to make some money from (3) .......... invention . It seems only fair - we did the work, so the money should be (4) .......... too. Many inventors who have had (5) .......... inventions produced, have become rich and famous and we shouldnt blame (6) ........ for that. But have (7) ........ heard of Tim Berners-Lee? (8) ....... invented the World Wide Web on the Internet, o...
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If you invented something important, (1)........ would want to make money out of (2) ........ , right? Most of us would want to make some money from (3) .......... invention . It seems only fair - we did the work, so the money should be (4) .......... too. Many inventors who have had (5) .......... inventions produced, have become rich and famous and we shouldn't blame (6) ........ for that. But have (7) ........ heard of Tim Berners-Lee? (8) ....... invented the World Wide Web on the Internet, one of the most important inventions of the last fifty years. Millions of lives have been changed by (9) .......... introduction. When Tim Berners-Lee invented the Web, he made a promise to (10) .......... - that he wouldn't make any money out of it, and that he would give (11) ......... invention to the world. He did, and now the Web belongs to all of (12) ......... . Ask (13) what life would be like if the World Wide Web wasn't free. We should be grateful to Tim Berners-Lee, and thank (14) ........ for (15) ...... amazing gift to the world.
Writing short passages about the following topics (70 - 100 words)
1. The causes and effects of a pollution type in your area.
2. Do you agree with the idea that in the future robot will be very useful to us?
3. A report on a natural disasters you have known or read about.
4. Do you agree or disagree with the idea?
" With the help of technology, students will benefit greatly from studying by themselves at home."
1. If I were you, I … do something to prevent him from littering.
A. would B. did C. will D. do
2.Earth ….............. by the gravity of the Sun and orbits around it.
A. holds B. is held C. is holding D. held
3. By the time we ….............. to the cinema, the film had started.
A. gets B. had got C. has got D. got
4. When the policeman came there, the robber …
A. had left B. has left C. left D. was left
5. All people who were without homes in the flood were provided with …......... acc...
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1. If I were you, I … do something to prevent him from littering.
A. would B. did C. will D. do
2.Earth ….............. by the gravity of the Sun and orbits around it.
A. holds B. is held C. is holding D. held
3. By the time we ….............. to the cinema, the film had started.
A. gets B. had got C. has got D. got
4. When the policeman came there, the robber …
A. had left B. has left C. left D. was left
5. All people who were without homes in the flood were provided with …......... accommodation.
A. short B. temporary C. present D. instant
6. Seven of ten people prefer face-to-face … when having a date.
A. language B. contact C. code D. sign
7. When thermal pollution happens, the water temperature in streams, rivers, lakes and oceans ...
A. changes B. keeps C. remains D. stays
8 Australia is home to .......................… animals like kangaroos and koalas.
A. only B. rare C. unique D. precious
17. If you were the president, what .....................… you do to help the environment?
A. will B. did C. would D. do
9.The Maori in New Zealand greet each other by .......................… their noses.
A. touching B. punching C. blowing D. rubbing
10. I believe that our new manager has the ….............. to work well in this business environment.
A. inflexible B. flexibly C. flexibility D. flexible
11. If the factory … dumping poison into the lake, all the fish and other aquatic animals will die.
A. continues B. continued C. will continue D. continue
12 You will recognize Jenny when you see her. She …....................... a red hat.
A. wears B. is wearing C. will wear D. will be wearing
13. Little Pascal ……a mechanical calculator which could do additions or subtractions very quickly.
A. discovered B. found C. found out D. invented
14. Robots save workers from ………dangerous tasks.
A. making B. having C. performing D. carrying
15. Many people believe that robots have made workers jobless………that is not necessarily true.
A. but B. and C. so D. or
16. Recent ………developments have made robots more user-friendly and intelligent.
A. science B. scientist C. scientific D. scientifically
17. Teenagers spend most of their time playing computer games, ………they lost their interests in daily activities. A. moreover B. so C. however D. as a result
18. Science and technology have ………the life safe, secure and comfortable.
A. transformed B. made C. done D. changed
19. The teacher __________ me that I had better devote more time to science subjects such as physics, chemistry, and biology.
A. said B. talked C. spoke D. told
20. Science is used in all corners of the world for the __________ of people.
A. interest B. need C. profits D. benefit
21. Sciences and technology have enormous ______________ on economic development.
A. affects B. effects C. affect D. effect
A. The environment is everything around us, both natural and made by man. A major problem in the world today is the destruction of the natural environment.
This is a complicated problem. We burn fuel, and this causes air pollution. We throw away lastic bags, containing toys and other objects. These stay in the environment, they are not like paper or wood that slowly disappear. We have made thousands of new chemicals. Factories that make or use chemicals always have chemical wastes. These are of...
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A. The environment is everything around us, both natural and made by man. A major problem in the world today is the destruction of the natural environment.
This is a complicated problem. We burn fuel, and this causes air pollution. We throw away lastic bags, containing toys and other objects. These stay in the environment, they are not like paper or wood that slowly disappear. We have made thousands of new chemicals. Factories that make or use chemicals always have chemical wastes. These are often poisonous, and they also stay in the environment.
Since 1945 several countries have been testing nuclear bombs in the air and underground. The explosions in the air cause nuclear fallout. The fallout causes cancer and kills animals and people. Nuclear power plants that make electricity also produce dangerous wastes and have accidents that can be very disastrous.
1. What is a big problem in the world today?
A. The development of the population. B. The destruction of the natural environment.
C. Bomb testing. D. Throwing away plastic bags.
2. What is the cause of the air pollution?
A. Fuel burning. B. Smoke from vehicles. C. Toys and other objects. D. Paper or wood.
3. What does the word "these" in the second paragraph refer to?
A. New chemicals. B. Factories. C. Chemical wastes. D. Poisons.
4. The nuclear fallout causes __________.
A. chemical wastes. B. cancer and kills animals and people.
C. water pollution. D. dangerous wastes.
5. What is the benefit of nuclear power?
A. Causing nuclear fallout. B. Producing dangerous.
C. Having accidents. D. Making electricity.
B. Thomas Edison was one of the greatest inventors of the world. He was responsible for more than one thousand inventions including the electric light bulb and the record player. He also created the world's first industrial research laboratory.
Edison was born in 1847 in Ohio, USA. When he was 10 years old, he set up asmall baloratory after he had read a science book his mother showed him. In 1869, he borrowed some money and began to make inventions. In 1876 he built a new laboratory so that he could spend all his time inventing. He planned to turn out minor inventions every ten days and "big trick" every six months. He developed many devices that brought great benefits to people's life. He once said that the value of an idea lay in the using of it. Edison died in 1931, after having aremarkably productive life.
1. Who was Thomas Edison?
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2. When and where was he born?
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3. What did he invent?
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4. Did he build a new laboratory in 1876?
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5. When did he die?
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Red Alert: Volcanoes
Volcanoes can be fun to learn about. It can be neat to watch them erupt. But if you live near a volcano, you know that they are dangerous! An eruption can like an explosion. Rock and lava can throw up into the air. Streams of red hot lava quickly run down from the peak of the volcano. The air is filled with deadly gases. These things can put many lives in danger. Scientists have learned that there are many things that they can study to help them tell when an eruption might...
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Red Alert: Volcanoes
Volcanoes can be fun to learn about. It can be neat to watch them erupt. But if you live near a volcano, you know that they are dangerous! An eruption can like an explosion. Rock and lava can throw up into the air. Streams of red hot lava quickly run down from the peak of the volcano. The air is filled with deadly gases. These things can put many lives in danger. Scientists have learned that there are many things that they can study to help them tell when an eruption might happen. They can study the movements of the ground. When a volcano is about to erupt, the ground will often move just like it does during an earthquake. Scientists can also measure the gases that come out of a volcano. Most volcanoes emit gases all of the time. More gases are let out as the volcano gets closer to erupting. They can also study the way the land and water around the volcano. Scientists can read these signs and warn people of danger. They may not realize it, but their work helps to keep people safe!
1. Read the passage and choose the best answer A, B,Cor D toeach question below. 1. In the passage, a volcanic eruption is compared as .
A.an explosion
B.an exploration
C.a bomb
D.a danger
2. can come out from a volcanic eruption.
A. Rock
B.Lava
C.Gases
D.All above
3. can study many things to predict when an eruption might happen.
A.Economists
B.Scientists
C.People
D.Biologists
4. There are ways for studying to estimate the time an eruption might happen.
A. 1
B. 2
C. 3
D. 4
5. When an eruption is going to happen, .
A.the ground moves as it does during an earthquake.
B.the gases don't come out of it more than usual.
C.only the water around it changes.
D.the ground moves slowly and weakly.
Sửa lỗi sai: a/ Scientists are planning to send people to explore in Mars in the near future.
b/Simply spoken, technology is the tools and machines that solve the problems.