Unit5 Looking into nature语法知识专项训练 2025-2026学年外研版八年级下册英语

外研版八年级下册Unit5 Looking into nature语法知识专项训练 核心语法：动词不定式（to do）、when/while引导时间状语从句、情态动词must/mustn’t、形容词比较级、it作形式主语 一、选出不同类的一项（每题1分，共5分） ( ) 1. A. nature B. butterfly C. biology D. find ( ) 2. A. amazing B. interesting C. usually D. useful ( ) 3. A. to watch B. reading C. to study D. to learn ( ) 4. A. must B. should C. while D. can ( ) 5. A. brighter B. easier C. good D. wilder 二、单项选择题（每题1分，共15分） 1.It’s interesting for us ______ nature. A. study B. to study C. studying D. studied 2.We ______ touch wild animals. They may be dangerous. A. must B. mustn’t C. can D. need 3.I was taking photos ______ I saw a rare bird. A. when B. while C. before D. after 4.This forest is much ______ than that one. A. quiet B. quieter C. quietest D. more quiet 5.They want ______ insects in the forest. A. watch B. watching C. to watch D. watched 6.You must ______ careful when you go through the woods. A. be B. are C. is D. were 7.It’s wonderful ______ different kinds of plants. A. see B. to see C. seeing D. saw 8.______ is necessary to take a notebook when you look into nature. A. It B. That C. This D. There 9.I stopped ______ because I heard a strange sound. A. walk B. walking C. to walk D. walked 10.We should do something ______ the natural world. A. protect B. protecting C. to protect D. protected 11.The night sky is becoming ______ because of light pollution. A. dark B. darker C. darkest D. more dark 12.I saw them ______ when I passed the field. A. work B. working C. to work D. worked 13.You shouldn’t ______ time playing computer games. A. spend B. spends C. spending D. spent 14.It’s difficult for me ______ the difference between the two insects. A. tell B. telling C. to tell D. told 15.______ learn more, we often read books about nature. A. To B. For C. At D. With 三、情景对话填空（用所给词的正确形式填空，每题1分，共10分） A: Hi, Daming! What do you plan ______ (do) this Sunday? B: I want ______ (go) to the wetland to watch birds. A: What rules must we ______ (follow) there? B: We mustn’t ______ (make) noise or run after birds. A: Can we ______ (take) photos of them? B: Yes, but we should try ______ (not disturb) them. A: I see. While we ______ (watch) birds, we must keep quiet. B: Right. Remember ______ (bring) a notebook to take notes. A: OK. I hope ______ (see) some rare birds. B: I believe nature will become ______ (amazing) if we protect it. 四、用括号内单词的正确形式填空（每题1分，共20分） 1.It’s exciting for us ______ (explore) the forest. 2.We must ______ (keep) quiet when we watch animals. 3.They are trying ______ (learn) more about nature. 4.While I ______ (walk), I found a small snake. 5.This river is much ______ (clean) than before. 6.It’s wrong ______ (catch) butterflies for fun. 7.We should stop ______ (pollute) the natural home of animals. 8.He hopes ______ (become) a biologist in the future. 9.You mustn’t ______ (walk) on the grass in the park. 10.It’s important ______ (know) more about living things. 11.The world is getting ______ (crowded) these years. 12.I saw her ______ (draw) plants when I came in. 13.We must do something ______ (save) the endangered insects. 14.She decided ______ (write) a report about nature. 15.While my father ______ (read), my mother was cooking. 16.It’s helpful for us ______ (do) some research on plants. 17.We should avoid ______ (hurt) small animals. 18.You need ______ (wear) sunglasses in the sun. 19.The teacher told us ______ (not play) with fire. 20.The park will be ______ (beautiful) than before. 五、语法改错题（共20分） A. 单句改错（每题1分，共10分） 1.It’s interesting study the natural world. →__________ 2.We must to keep quiet in the nature reserve. →__________ 3.This tree is more tall than that one. →__________ 4.I saw her to take photos of flowers. →__________ 5.While I read, he was watching insects. →__________ 6.It’s wrong catch wild butterflies. →__________ 7.You mustn’t running in the woods. →__________ 8.They want visited the museum last week. →__________ 9.Look at birds make us feel happy. →__________ 10.It’s good for we learn about nature. →__________ B. 语段改错（每题2分，共10分） It is fun look into nature. We must to learn more about it.While we are in the field, we mustn’t catch small animals.The world is becoming beautiful because many people protect it. We should try our best study nature and love it. 1. __________ 2. __________ 3. __________ 4. __________ 六、完形填空（每题1分，共10分） Looking into nature is a great hobby. We can 1 many amazing things around us. It’s important for us 2 more about plants and animals. We 3 make noise or run after wild creatures.When we 4 through the forest, we must be careful.It’s great fun 5 birds and insects. While we 6 observations, we should take notes carefully. The natural world is becoming 7 because of human activities. We must try our best 8 it. It’s our duty 9 friends with nature. If we care for nature, it will be 10 and more wonderful. 1. A. look B. find C. look for D. watch 2. A. learn B. learning C. to learn D. learned 3. A. mustn’t B. must C. can D. should 4. A. walk B. walks C. walking D. walked 5. A. watch B. to watch C. watching D. watched 6. A. make B. are making C. made D. making 7. A. safe B. safer C. safest D. more safe 8. A. protect B. protecting C. to protect D. protected 9. A. be B. to be C. being D. been 10.A. good B. better C. best D. well 七、句型转换（每题2分，共20分） 1.It’s interesting to look into nature.（同义句） ______ ______ ______ is interesting. 2.We must keep quiet.（否定句） We ______ ______ quiet. 3.I was watching insects. My friend was taking photos.（用while合并） ______ I ______ ______ insects, my friend ______ ______ photos. 4.This park is beautiful. That park is more beautiful.（合并） That park is ______ ______ this park. 5.You mustn’t catch butterflies.（同义句） ______ ______ butterflies. 6.I decided to study plants.（对划线提问） ______ ______ you decide ______ ______? 7.It’s necessary to protect insects.（一般疑问句） ______ ______ necessary to protect insects? 8.We should do something to study nature.（否定句） We ______ do ______ to study nature. 9.He spent two hours watching birds.（同义句） It ______ him two hours ______ ______ birds. 10.Studying nature is great fun.（同义句） ______ great fun ______ ______ nature. 八、语法运用补全短文（每空2分，共10分） It’s great fun for us ______ (look) into nature.We must ______ (protect) the living things around us.We should stop ______ (hurt) small animals.While we ______ (explore) the outdoors, we must follow the rules.If we love nature, it ______ (give) us more surprises. 九、连词成句（每题2分，共10分） 1.must, we, nature, protect, around, us __________________________________________________. 2.it’s, for, us, important, to, learn, biology __________________________________________________. 3.while, saw, I, he, watching, was, birds, a, butterfly __________________________________________________. 4.mustn’t, we, catch, wild, animals __________________________________________________. 5.nature, more, will, become, beautiful, the, in, future __________________________________________________. 参考答案 一、选出不同类的一项。 1.D 2. C 3. B 4. C 5. C 二、单项选择题。 1.B 2. B 3. A 4. B 5. C 6.A 7. B 8. A 9. B 10. C 11.B 12. B 13. A 14. C 15. A 三、情景对话填空。 to do; to go; follow; make; take; not to disturb; are watching; to bring; to see; more amazing 四、单词正确形式填空。 1. to explore 2. keep 3. to learn 4. was walking 5. cleaner 6.to catch 7. polluting 8. to become 9. walk 10. to know 11.more crowded 12. drawing 13. to save 14. to write 15. was reading 16.to do 17. hurting 18. to wear 19. not to play 20. more beautiful 五、语法改错题。 A. 单句改错 1.study → to study 2.去掉 to 3.more tall → taller 4.去掉 to 5.read → was reading 6.catch → to catch 7.running → run 8.visited → to visit 9.look → looking 10.we → us B. 语段改错 1.look → to look 2.去掉 to 3.beautiful → more beautiful 4.study → to study 六、完形填空。 1.B 2. C 3. A 4. A 5. B 6.B 7. B 8. C 9. B 10. B 七、句型转换。 1.Looking into nature 2.mustn’t keep 3.While; was watching; was taking 4.more beautiful than 5.Don’t catch 6.What did; to do 7.Is it 8.shouldn’t; anything 9.took; to watch 10.It’s; to study 八、语法运用补全短文 to look; protect; hurting; are exploring; will give 九、连词成句 1.We must protect nature around us. 2.It’s important for us to learn biology. 3.While he was watching birds, I saw a butterfly. 4.We mustn’t catch wild animals. 5.Nature will become more beautiful in the future. 学科网（北京）股份有限公司 $