预习30 Unit 8 Pets and us重点语法讲解与练习【暑假预习】2026-2027学年沪教版八年级英语上册（广州卷）

**基本信息** 聚焦Unit 8核心语法，通过“讲解-分层训练”系统构建情态动词should/shouldn’t、祈使句等五大语法点的用法体系，强化语言运用与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |语法讲解|5大语法点|提炼should句式/祈使句结构/不定代词用法/物主代词对比/不定式高频结构|从概念定义到句式规则，构建语法逻辑链| |专项训练|单选20+填空20+句型转换10+选词1|通过辨析/应用/转换/综合题型，强化语法规则迁移|由基础辨析到综合运用，分层突破考点|

【暑假预习】2026-2027学年沪教版八年级英语上册（广州卷） 预习30 Unit 8 Pets and us重点语法讲解与练习 重点语法讲解 语法一：情态动词 should / shouldn’t 1. 用法：表示建议、劝告、责任；should + 动词原形，否定 shouldn’t + 动词原形 2. 句式 肯定：主语 + should do… 否定：主语 + shouldn’t do… 疑问：Should + 主语 + do…? 回答：Yes, …should. / No, …shouldn’t. 语法二：祈使句（肯定、否定） 1. 肯定：动词原形开头。Look after your pet. 2. 否定：Don’t + 动词原形。Don’t shout at animals. 语法三：不定代词 something, anything, nothing, everything something 某事某物（肯定句；表委婉请求疑问句） anything 任何事物（否定、疑问句） 定语后置：something important 重要的事 语法四：名词性物主代词 & 形容词性物主代词 类别 单数 复数 第一人称 第二人称 第三人称 第一人称 第二人称 第三人称 形容词性物主代词 my your his her its our your their 名词性物主代词 mine yours his hers its ours yours theirs 意思 我的 你的 他的 她的 它的 我们的 你们的 他们的 形容词性物主代词的作用相当于形容词,可在句中作定语。一般情况下形容词性物主代词后面接名词。如: Our teacher is coming to see us.我们的老师要来看我们了。 语法五：动词不定式 to do（本单元高频） want sb. to do; teach sb. to do; learn to do; need to do 重点语法专练 一、单项选择题 1. You ____ give too much chocolate to your dog. It’s bad. A. should B. shouldn’t C. can D. may 2. —____ I take the cat outside? —Yes, you ____. A. Should; should B. Should; shouldn’t C. Do; should D. Are; are 3. ____ wake up the sleeping puppy. A. Not B. Don’t C. No D. Doesn’t 4. There is ____ interesting about this little rabbit. A. something B. anything C. everything D. nothing 5. Is there ____ to eat for the hamster? A. Something B. anything C. everything D. nothing 6. This pet dog is ____. ____ is black. A. mine; Yours B. my; Your C. me; You D. I; Your 7. My mum tells me ____ clean the fish tank every week. A. clean B. to clean C. cleaning D. cleans 8. We should learn ____ look after small animals. A. how to B. what to C. where to D. when to 9. —Whose parrot is this? —It’s ____. A. their B. them C. theirs D. they 10. You ____ be quiet when your cat is resting. A. shouldn’t B. should C. can’t D. won’t 11. Don’t forget ____ water for your pet bird. A. leave B. to leave C. leaving D. left 12. —Is ____ here? —Yes, all students come to talk about pets. A. anybody B. somebody C. everybody D. nobody 13. ____ play with the dog near the road. It’s dangerous. A. Don’t B. Not C. No D. Doesn’t 14. She wants her brother ____ a cute guinea pig. A. keep B. to keep C. keeps D. keeping 15. Everything ____ well with my pet cat. A. go B. goes C. going D. to go 16. Should we ____ pets in the bedroom? A. keep B. to keep C. keeping D. kept 17. This cage isn’t ____. Our cage is bigger. A. our B. we C. ours D. us 18. There isn’t ____ wrong with the kitten. A. Something B. anything C. everything D. nothing 19. Teachers teach us ____ kind to all animals. A. be B. to be C. being D. are 20. You ____ pull the rabbit’s ears. It will hurt. A. should B. shouldn’t C. can D. will 二、用所给词适当形式填空 1. You should ________ (feed) your pet on time. 2. Don’t ________ (run) after the little dog. 3. My sister wants ________ (have) a pet goldfish. 4. This white dog is ________ (I). ________ (you) is brown. 5. We should learn how ________ (look) after pets. 6. ________ (not make) loud noise around sleeping pets. 7. Is there anything ________ (eat) for the hamster? 8. Everything ________ (be) ready for the new puppy. 9. He shouldn’t ________ (give) sweets to cats. 10. Can you teach me ________ (train) my parrot? 11. That cat of ________ (they) likes fish very much. 12. I hope ________ (keep) a pet bird one day. 13. Something strange ________ (happen) to the rabbit yesterday. 14. Should we ________ (take) pets to school? 15. Her dog likes ________ (play) with balls. 16. Don’t forget ________ (change) the water for fish. 17. These toys are not ours. They are ________ (she). 18. You ________ (should) leave your pet alone for many days. 19. It’s important ________ (keep) pets clean. 20. Nobody ________ (know) where the little cat went. 三、句型转换 1. You should clean the pet cage every day.（改为否定句） You ____ ____ the pet cage every day. 2. Don’t shout at animals.（同义句） You ____ ____ at animals. 3. We should feed the puppy three times a day.（一般疑问句） ____ you ____ the puppy three times a day? 4. This is my pet dog.（名词性物主代词改写） This pet dog is ____. 5. There is something wrong with the cat.（否定句） There is ____ ____ wrong with the cat. 6. Please look after your hamster well.（否定祈使句） ____ ____ after your hamster well. 7. He wants to keep a pet.（划线部分提问） ____ ____ he want to keep? 8. You should be friendly to pets.（划线部分提问） ____ ____ I do? 9. The white rabbit is theirs.（同义句） ____ ____ the white rabbit. 10. I need to buy some pet food.（一般疑问句） ____ you ____ to buy any pet food? 四、选词填空 should, shouldn’t, something, don’t, to look, mine, everything, keep, friendly, feeding Many people love1. ____ pets. If you have a pet, you2. ____ know how to care for it. You need 3.____ after it every day. 4.____ leave your pet at home alone for a long time. You 5.____ give it clean water and proper food. But you6. ____ give too much snack. Is there 7.____ fun you can do with your pet? Yes! Be 8.____ to your pet. If 9.____ goes well, your pet will be happy. This little cat is10. ____. I love it very much. 参考答案 一、 1.B 2.A 3.B 4.A 5.B 6.A 7.B 8.A 9.C 10.B 11.B 12.C 13.A 14.B 15.B 16.A 17.C 18.B 19.B 20.B 二、 1. feed 2. run 3. to have 4. mine; Yours 5. to look 6. Don’t make 7. to eat 8. is 9. give 10. to train 11. theirs 12. to keep 13. happened 14. take 15. playing 16. to change 17. hers 18. shouldn’t 19. to keep 20. knows 三、 1. shouldn’t clean 2. shouldn’t shout 3. Should; feed 4. mine 5. nothing 6. Don’t look 7. What does 8. What should 9. Theirs is 10. Do; need 四、 1.keeping; 2.should; 3.to look; 4.Don’t; 5.should; 6.shouldn’t; 7.something; 8.friendly; 9.everything; 10.mine 学科网（北京）股份有限公司 $