must、mustn't与祈使句（专项训练）-2026-2027学年人教PEP版英语六年级上册
2026—2027学年度第一学期专项复习
六年级英语上册专项·must、mustn't与祈使句
（人教 PEP 六年级上册 Unit 6 Energy, nature and us）
满分 120 分 建议用时 70 分钟 每题 1 分
班级：__________ 姓名：__________ 得分：__________
一、用 must 或 mustn't 填空（每小题1分，共20分）
1. We ______ save energy. It is important.
2. You ______ waste water. We have little of it.
3. We ______ turn off the lights when we leave.
4. People ______ cut down too many trees.
5. We ______ protect our Earth.
6. You ______ throw rubbish everywhere.
7. We ______ reuse and recycle paper.
8. Drivers ______ drive too fast near the school.
9. Students ______ follow the school rules.
10. We ______ waste electricity in the daytime.
11. You ______ take quick showers to save water.
12. Children ______ play with fire. It is dangerous.
13. We ______ plant more trees to make the air clean.
14. People ______ use too much plastic.
15. We ______ unplug the computers after class.
16. You ______ be late for school again.
17. We ______ keep our classroom clean.
18. People ______ hunt wild animals.
19. We ______ save water in our daily life.
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20. You ______ eat too much junk food.
二、单项选择（每小题1分，共20分）
21. You ______ waste electricity.
A. mustn't B. must C. mustn't to
22. —Must we turn off the lights? —Yes, you ______.
A. needn't B. must C. mustn't
23. —Must I finish it now? —No, you ______.
A. mustn't B. can't C. needn't
24. We must ______ energy at home.
A. saving B. to save C. save
25. ______ waste water. We need it every day.
A. Not B. Don't C. Doesn't
26. ______ the lights when you leave the classroom.
A. Please turn off
B. Please turning off
C. Please to turn off
27. We mustn't ______ rubbish into the river.
A. throw B. throwing C. throws
28. ______ use too much plastic. It is bad for the Earth.
A. Don't B. Doesn't C. Not to
29. We ______ plant more trees this spring.
A. must to B. must C. musts
30. You mustn't ______ too much water.
A. wastes B. wasting C. waste
31. ______ the tap when you brush your teeth.
A. Turn off B. Turn on C. Turn up
32. Please ______ the lights in the daytime.
A. turn off B. turn on C. turn down
33. —Must we save water? —Yes, ______.
A. we need B. we must C. we mustn't
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34. We must keep our classroom ______.
A. clean B. cleanly C. cleaning
35. ______ throw the old bottles away. We can reuse them.
A. Doesn't B. Don't C. Not
36. We mustn't ______ water. It is important.
A. to waste B. wasting C. waste
37. Everyone must ______ the rules.
A. follow B. follows C. following
38. ______ plant trees on Tree Planting Day.
A. Let B. Let's to C. Let's
39. Please ______ quiet in the library.
A. keep B. keeps C. keeping
40. We must ______ good habits.
A. has B. have C. having
三、用 Don't 或括号内动词的适当形式填空（每小题1分，共20分）
41. ______ (waste) water when you wash your face.
42. ______ (turn) off the lights, please.
43. ______ (throw) rubbish everywhere.
44. ______ (save) energy at home.
45. ______ (use) too much plastic.
46. ______ (recycle) old bottles and paper.
47. ______ (be) late for school again.
48. ______ (take) a quick shower to save water.
49. ______ (unplug) the TV when you leave.
50. ______ (play) with fire. It is dangerous.
51. ______ (plant) more trees in spring.
52. ______ (cut) down the trees in the forest.
53. ______ (keep) the classroom clean, please.
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