I. Fill in the blank with an appropriate preposition
1. Many other species exist________________ this planet.
2. Human beings have a great influence________________ the rest________________ the world.
3. They are affecting the water supply by using water________________ industry and agriculture.
4. They are changing weather conditions by cutting________________ trees in the forests.
5. This has resulted________________ two serious consequences.
6. As a result, the number________________ rare animals is decreasing so rapidly that they are________________ danger________________ becoming extinct.
7. Scientists have made lists________________ endangered species and suggested ways to save them.
8. Many organisations have been set________________ and funds have been raised.
9. Thousands of national parks all________________ the world have been established to protect endangered animals.
10. If people’s interference________________ the environment decreases, more species will survive and produce offspring.
11. The amount of solar energy that reaches the earth depends____________________ the atmosphere.
12. The natural environment consists____________________ all natural resources.
13. Solar energy can be changed____________________ electricity.
14. Human beings have a great influence____________________ the rest of the world.
15. What exactly is the influence of air pollution____________________ human beings?
16. The campaign will hopefully ensure the survival____________________ the tiger.
17. The EU has imposed a ban____________________ the import of seal skins.
18. Human beings are responsible____________________ the changes in the environment.
19. If people’s interference____________________ the environment decreases, more species will survive and produce off- spring.
20. National parks should be set____________________ to save animals and plants.
21. ______ present, most of our energy comes______ fossil fuels.
22. Solar energy can be changed______ electricity.
23. When water moves ______ a high place to a lower place, it makes energy.
24. Water energy is used______ create electricity. Its power gives energy______ pollution.
25. Nuclear energy can provide enough electricity______ the world’s needs for hundreds of years.
26. Many organizations have been set ______ to study alternative sources of energy.
27. How______ make use______ alternative sources of energy is a question for researchers all______ the world.
II. Write the correct tenses.
1. Look! The train________(come). It always__________(come) to the station on time.
2. I need an umbrella because it (rain).
3. The burglar__________(open) the safe when he___________(hear) footsteps. He immediately________(put) out his torch and_____________ (crawl) under the bed.
4. Just as I_________(wonder) what to do next ,the phone rang.
5. Why _____________you_____________ ( buy ) this paint last week ?
6. Until yesterday, I_______ (never, hear) about it.
7. Sam___________ (leave) before we________ (get) there.
8. He_____________ (watch) television when the phone rang.
9. After the guests_________ (leave), I_________ (go) to bed.
10. When Judy (get) home, her hair _______still (be) wet .
11. Water (consist) __________________ of hydrogen and oxygen.
12. John (sleep) __________________ right now
13. Alice and Louise (not, buy) __________________ anything at the store yesterday.
14. After they (leave) __________________, we (sit) __________________ down and rested.
15. John and Mary (talk) __________________ on the phone now.
16. After three days of rain, I’m glad that the sun (shine) __________________ again today.
17. He (write) __________________ his report for two days, but he (not, finish) __________________ it yet.
18. I (stand) __________________ under a tree when it (begin) __________________ to rain.
19. He (need) __________________ a pen at the moment.
20. Last year at this time, I (attend) __________________ school.
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Sinh Học lớp 12
