外研版必修3 Module4復習學案
16. 4 yes. northwest china.
17. 5 increased. as a result of desertification.
18. 6 because the thick dust makes it difficult to see.
19. 7 plant more trees.
20.
parts content details
1 major disaster a mass campaign, to help solve sandstorm, tried many ways to solve it
2 description strong wind, dry, carry sand, so thick, can’t see the sun
cause desertification,
climate changes, cut down trees, dig up grass
influence orange sky, strong winds
suggestion stay at home, wear a mask
3 measures plant trees
21.
22. 1.t 2. f 3. f 4. f 5. f
23.
1. prevent you from seeing the sun
24. 2 he experienced a terrible sandstorm
25. 3 because of desertification
26. 4 cause deserts and sandstorms to increase
27. 5 the drivers can’t see
28. 6.prevent the desert coming nearer
29. grammar suggested answers:
30. 1.to do 2. to teach 3. to go 4. tell 5. to leave 6. not to swim 7. to turn off 8. stay do
31. 9. to do 10. to get to 11. to start 12. to tell 13. to hear from 14. to understand 15. to have
32. 16. not to do 17. to become 18. to go 19. to leave 20. to work
33. 1a 2. b 3.c 4. a 5. d 6. b 7. a 8. b 9.b 10. a
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