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
