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沪教版（五四制）七年级下册英语
Unit6 Trees词汇变形及专项巩固训练
共120分
一、重点单词词性转换（20分）
1.tree (n.) 树 → ________ (adj.) 树木的；木质的
2.help (v./n.) 帮助 → ________ (adj.) 有帮助的
3.help (v./n.) 帮助 → ________ (adj.) 无助的
4.use (v.) 使用 → ________ (adj.) 有用的
5.use (v.) 使用 → ________ (adj.) 无用的
6.importance (n.) 重要性 → ________ (adj.) 重要的
7.protect (v.) 保护 → ________ (n.) 保护
8.protect (v.) 保护 → ________ (adj.) 保护的；防护的
9.cool (v./adj.) 使冷却；凉爽的 → ________ (n.) 凉爽；凉快
10.cool (v./adj.) 使冷却；凉爽的 → ________ (adv.) 冷静地
11.beauty (n.) 美丽 → ________ (adj.) 美丽的
12.beauty (n.) 美丽 → ________ (adv.) 美丽地
13.produce (v.) 生产；产生 → ________ (n.) 产品；产量
14.produce (v.) 生产；产生 → ________ (n.) 生产；产量
15.fight (v.) 战斗；对抗 → ________ (n.) 战士；斗士
16.fight (v.) 战斗；对抗 → ________ (过去式)
17.clean (adj./v.) 干净的；打扫 → ________ (n.) 清洁；清洁工
18.pollute (v.) 污染 → ________ (n.) 污染
19.pollute (v.) 污染 → ________ (adj.) 被污染的
20.live (v.) 居住；生活 → ________ (adj.) 活着的；现场的
二、根据括号里单词的正确形式填空（30分）
1.Trees are very ________ (help) to human beings.
2.We should know the ________ (important) of trees in our life.
3.It's important for us ________ (protect) trees and forests.
4.________ (protect) trees is our duty to protect the earth.
5.Trees can keep the air ________ (cool) and clean.
6.The forest is full of ________ (beauty) flowers and tall trees.
7.The park is ________ (beautiful) decorated with green trees.
8.Trees can ________ (production) oxygen for us to breathe.
9.The ________ (produce) of trees is very important for our daily life.
10.Trees are ________ (fight) against air pollution every day.
11.My grandfather ________ (fight) against the wind to protect the young trees last year.
12.We should keep our environment ________ (clean) and tidy.
13.Air ________ (pollute) is a big problem in many big cities.
14.The ________ (pollute) river makes the fish die quickly.
15.There are many ________ (live) animals and plants in the forest.
16.The story about trees is ________ (live) and educational.
17.Many trees ________ (die) because of the big fire last month.
18.The ________ (die) of the big tree makes people very sad.
19.The young trees ________ (grow) fast in spring with enough water.
20.We are surprised at the fast ________ (grow) of the little trees.
21.Trees are ________ (use) in many different ways in our life.
22.Throwing away tree branches is ________ (use), we can recycle them.
23.The old man is ________ (help), he can't cut down the trees by himself.
24.We should stop people from ________ (cut) down trees.
25.They decided ________ (plant) more trees in the school yard.
26.The government asks us ________ (not destroy) the forests.
27.Trees can take in ________ (harm) gases from the air.
28.Thank you for ________ (tell) me the importance of trees.
29.We can make many things with ________ (wood) materials.
30.More and more trees ________ (be) planted in our city every year.
三、根据句子中首字母提示完成合适的单词填空（30分）
1.Trees are our best friends, they are very h________ to us.
2.We must know the i________ of protecting trees.
3.It's our duty to p________ trees and forests.
4.Trees can make the air c________ and fresh.
5.The b________ flowers and green trees make the park nice.
6.Trees can p________ oxygen for people and animals to breathe.
7.Trees are f________ against air pollution every day.
8.We should keep the environment c________ and green.
9.Air p________ is bad for our health and trees' growth.
10.There are many l________ things in the forest, like animals and plants.
11.Many old trees d________ because people cut them down.
12.We can see the fast g________ of young trees in spring.
13.Trees are very u________, we can make desks and chairs with them.
14.Don't c________ down trees, it's bad for the environment.
15.We should p________ more trees every year to make the earth green.
16.Trees can take in h________ gases and give out oxygen.
17.We can use w________ to make tables and beds.
18.Trees can a________ water and keep the soil from being washed away.
19.F________ are important, they are home to many animals.
20.We should not d________ the forests for farmland.
21.The a________ is getting cleaner because of more trees.
22.Trees can make our life more b________ and comfortable.
23.Every year, we plant t________ of trees on Tree Planting Day.
24.Young trees need enough w________ and sunlight to grow.
25.Trees can stop the wind from b________ strongly.
26.We should f________ against people who destroy trees.
27.The s________ under the big tree is very cool in summer.
28.Trees give us f________ like apples and pears.
29.We can r________ old trees and plant new ones.
30.Let's act together to s________ our earth by planting trees.
四、用括号里汉语提示完成单词填空（40分）
1.We should plant more ________ (树) to make our city green.
2.Trees are very ________ (有帮助的) in our daily life.
3.We must know the ________ (重要性) of protecting trees.
4.It's our duty to ________ (保护) trees and forests.
5.Trees can keep the air ________ (凉爽的) and clean.
6.The ________ (美丽的) trees make our school more beautiful.
7.Trees can ________ (产生) oxygen for us to breathe.
8.Trees are ________ (对抗) pollution all the time.
9.We should keep the ________ (干净的) environment for trees to grow.
10.Air ________ (污染) is a serious problem in the world.
11.There are many ________ (活着的) plants in the forest.
12.Many trees ________ (死亡) because of the dry weather.
13.We can see the fast ________ (生长) of young trees in spring.
14.Trees are very ________ (有用的) for making furniture.
15.Don't ________ (砍伐) down trees without permission.
16.We should ________ (种植) more trees every year.
17.Trees can take in ________ (有害的) gases from the air.
18.We can use ________ (木头) to make many daily things.
19.Trees can ________ (吸收) water and protect the soil.
20.________ (森林) are the homes of many wild animals.
21.We should not ________ (破坏) the forests and trees.
22.The ________ (空气) is fresh because there are many trees.
23.Trees can give us ________ (果实) like peaches and oranges.
24.Young trees need enough ________ (水) and sunlight.
25.Trees can stop the ________ (风) from blowing the soil away.
26.We should ________ (战斗) against people who cut down trees.
27.The ________ (阴凉处) under the tree is very cool in hot summer.
28.We can ________ (回收) old tree branches to make useful things.
29.Let's ________ (拯救) the trees and protect our earth.
30.Trees can make our life more ________ (舒适的).
31.The ________ (产品) made from trees are very popular.
32.We should be ________ (勇敢的) to protect the young trees.
33.The ________ (清洁工人) water the trees in the park every day.
34.Trees can make the ________ (环境) more beautiful.
35.We can't live ________ (没有) trees in the world.
36.Tree planting Day is on ________ (三月) 12th in China.
37.Many ________ (昆虫) live in the trees and forests.
38.Trees can ________ (使保持) the soil strong.
39.We should ________ (教育) people to love and protect trees.
40.Let's ________ (行动) together to plant more trees.
参考答案
一、重点单词词性转换（20题）
wooden 2. helpful 3. helpless 4. useful 5. useless
6.important 7. protection 8. protective 9. coolness 10. coolly
11.beautiful 12. beautifully 13. product 14. production 15. fighter
16.fought 17. cleaner 18. pollution 19. polluted 20. living
二、根据括号里单词的正确形式填空（30小题）
helpful 2. importance 3. to protect 4. Protecting 5. cool
6.beautiful 7. beautifully 8. produce 9. production 10. fighters
11.fought 12. clean 13. pollution 14. polluted 15. living
16.lively 17. died 18. death 19. grow 20. growth
21.useful 22. useless 23. helpless 24. cutting 25. to plant
26.not to destroy 27. harmful 28. telling 29. wooden 30. are
三、根据句子中首字母提示完成合适的单词填空（30小题）
helpful 2. importance 3. protect 4. cool 5. beautiful
6.produce 7. fighting 8. clean 9. pollution 10. living
11.die 12. growth 13. useful 14. cut 15. plant
16.harmful 17. wood 18. absorb 19. Forests 20. destroy
21.air 22. beautiful 23. thousands 24. water 25. blowing
26.fight 27. shade 28. fruits 29. recycle 30. save
四、用括号里汉语提示完成单词填空（40小题）
trees 2. helpful 3. importance 4. protect 5. cool
6.beautiful 7. produce 8. fighting 9. clean 10. pollution
11.living 12. die 13. growth 14. useful 15. cut
16.plant 17. harmful 18. wood 19. absorb 20. Forests
21.destroy 22. air 23. fruits 24. water 25. wind
26.fight 27. shade 28. recycle 29. save fortable
31.products 32. brave 33. cleaners 34. environment 35. without
36.March 37. insects 38. keep 39. educate 40. act

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