1. Air___________, together with littering, is causing many problems in our cities today

.        A. pollute B. pollution C. polluting D. polluted

2. The road in front of my office is always __________ when it rains heavily.

       A. to flood B. flooding C. flood D. floodded

3. Singapore is famous for its __________ and green trees.

       A. cleanliness B. cleanly C. cleaning D. clean

4. In some English speaking countries, turkey and pudding are ___________ food at Christmas

.        A. national B. historical C. traditional D. possible

5. Recent ………developments have made robots more user-friendly and intelligent.

        A. science B. scientist C. scientific D. scientifically

6. The roof of the building _____________ in a storm a few days ago.

A. damaged B. was damaged C. has damaged D. has been damaged

7. A severe tropical___________ is called a typhoon

A. drought B. rain C. flood D. storm

8. 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

9. If I were you, I … do something to prevent him from littering.

A. would B. did C. will D. do

10.Earth … by the gravity of the Sun and orbits around it

. A. holds B. is held C. is holding D. held

11. By the time we … to the cinema, the film had started.

       A. gets B. had got C. has got D. got

12. When the policeman came there, the robber …

       A. had left B. has left C. left D. was left

13. All people who were without homes in the flood were provided with … accommodation.

A. short B. temporary C. present D. Instant

14. If you __________ something, you should patent it as quickly as possible.

A. invented B. will invent C. have invented D. are inventing

15. When thermal pollution happens, the water temperature in streams, rivers, lakes and oceans ____________________

A. changes B. keeps C. remains D. stays

16. 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

18.The Maori in New Zealand greet each other by … their noses.

        A. touching B. punching C. blowing D. rubbing

19. The village’s drinking water_______ with poisonous chemicals since the factory came into operation.

      A. contaminates B. is contaminated C. has contaminated D. has been contaminated

20. When the policeman came to the scene, the driver of the car …

     A. have left B. had left C. leaves D. was left

21. Sciences and technology have enormous ______________ on economic development

. A. affects B. effects C. affect D. effect

22. I believe that our new manager has the________ to work well in this business environment.

A. inflexible B. flexibly C. flexibility D. flexible

23. 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

24. You will recognize Jenny when you see her. She … a red hat.

A. wears B. is wearing C. will wear D. will be wearing

25. The farmer rides the buffalo -____________ carts loaded full of rice home.

A. draw B. drawing C. drew D. drawn

26. Little Pascal ……a mechanical calculator which could do additions or subtractions very quickly.

A. discovered B. found C. found out D. invented

27. Robots save workers from ____________dangerous tasks.

A. making B. having C. performing D. carrying

28. Many people believe that robots have made workers jobless____that is not necessarily true.

A. but B. and C. so D. or

31. Science and technology have _____________the life safe, secure and comfortable.

A. transformed B. made C. done D. changed

32. The teacher __ me I had better devote more time to science subjects such as physics, chemistry, and biology.

A. said B. talked C. spoke D. told

33. Science is used in all corners of the world for the __________ of people

. A. interest B. need C. profits D. benefit

 Bổ sung thêm cấu trúc cho bạn nhé :

 S + be+ always/never...+ Ving : Phàn nàn về điều gì

II. Choose A, B, C, D for each gap in the following sentences.

1. B. pollution => Air pollution: ô nhiễm không khí.

2. B. flooding => S + be + always + V-ing: phàn nàn về một vấn đề gì đó liên tục xảy ra thì dùng thì hiện tại tiếp diễn.

3. A. cleanliness => Cleanliness (n): sự sạch sẽ.

4. C. traditional => Traditional (adj): thuộc về truyền thống.

5.C. scientific

Giải thích: Scientific developments: phát triển khoa học

Dịch: Những phát triển về khoa học gần đây đã khiến cho người máy trở nên dễ sử dụng và thông minh hơn.

6. B. was damaged => Có "a few days ago" nên dùng thì quá khứ đơn, "The roof of the building" làm chủ ngữ nên động từ chia ở dạng bị động.

7. D. storm => Storm (n): bão.

8. D. As a result( vì thế)

9. A. would => Câu điều kiện loại 2: If + S + V(past simple), S + would + V(bare).

10. B. is held => Diễn tả một sự thật nên dùng thì hiện tại đơn.

11. D. got

12. A. had left 

13.B. temporary

(temporary accommodation: nơi ở/ chỗ trú tạm thời)

14.A. invented

15.A changes

16.C unique

17. C. would 

18. A. touching

19. D. has been contaminated

20. B. had left 

21. B effects

Giải thích: Have effects on something: có ảnh hưởng tới cái gì

Dịch: Khoa học và công nghệ có những ảnh hưởng to lớn đến sự phát triển kinh tế.

23.C Flexibility

24. A. wears 

25.B drawing

26. D invented

27. A making

28.A but

giải thích:But nối 2 vế câu tương phản về nghĩa

Dịch: Nhiều người nghĩ rằng người máy sẽ làm cho con người mất việc, nhưng điều đó không hẳn là đúng.But nối 2 vế câu tương phản về nghĩa

Dịch: Nhiều người nghĩ rằng người máy sẽ làm cho con người mất việc, nhưng điều đó không hẳn là đúng.

31 B made

Giải thích:Make something adj: làm cho cái gì trở nên như thế nào

Dịch: Khoa học và công nghệ đã làm cuộc sống trở nên an toàn, đảm bảo và thoải mái hơn.

32.D told

33. D benefit

Giải thích: Benefit: lợi ích

Dịch: Khoa học được áp dung trong mọi lĩnh vực đời sống vì lợi ích của con người.

(cho mik hay nhất nhá)