Unit 2 No Rules, No Order 语法归纳总结+针对练习 2025-2026学年人教版英语七年级下册

Unit 2 No Rules, No Order! 语法点 1:情态动词 can 一、情态动词 情态动词是动词的一种,表示说话人的语气和态度等。常用的情态动词有: can,may,must等等。 1.情态动词后加动词原形, can+动原,“能,会”。 例句: I can play the guitar.我会弹吉他。 Can you speak English?你会说英语吗? 2.句式变换 句型 结构 例句 肯定句 主语+can+动词原形+其他 I can play the guitar 否定句 主语+can’ t+动词原形+其他 I can’ t play the guitar. Can+主语+动词原形+其他? 一般疑问句 肯定回答: Yes,主语+ can. Can you play the guitar? 否定回答: No,主语+ can’ t. 特殊疑问句 疑问词+can+主语+动词原形+其他? What can you do? 语法点 2:祈使句 用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句。祈使句最常用于表达命令。祈使句因对象(即主语)是第二人称,所以通常都省略主语。祈使句的开头动词都为原形,句末则使用句号或叹号。 Go and wash your hands.去洗你的手。(命令) 学科网(北京)股份有限公司 Be quiet, please.请安静。(请求) Be kind to your sisters.对妹妹要和善。(劝告) Look out! Danger!小心!危险!(警告) Keep off the grass.勿践踏草坪。(禁止) 1.祈使句的形式 (1)肯定祈使句的表现形式: Do 型 动词原形(+宾语)+其他成分 Please have a seat here. 请这边坐。 Be 型 Be+表语(名词或形容词)+其他成分 Be a good boy! 要做一个好孩子! Let 型 Let+宾语+动词原形+其他成分 Let me help you. 让我来帮你。 【口诀】 (2)否定祈使句的表现形式: 1、Do型和 Be 型的否定式都是在句首加 don't构成。 如: Don't forget me!不要忘记我! Don't be late for school!上学不要迟到! 2、 Let型的否定式有两种:“Don't+ let+宾语+动词原形+其它成分”和“Let+宾语+not +动词原形+其它成分”。如: Don't let him go./ Let him not go.别让他走。 3.、有些可用 no开头,用来表示禁止性的祈使句。如: No smoking!禁止吸烟! No fishing!禁止钓鱼! 学科网(北京)股份有限公司 Unit 2 祈使句 姓名: 班级: 分数: 一、单项选择(40分) ( )1. up now! It's 8 o' clock! You' ll be late! A. Get B. To get C. Getting D. Gets ( )2. Lily, do your homework in the sun. It's bad for your eyes. A. doesn't B. don't C. isn't D. can't ( )3. me back when you get home. A. Call B. To call C. called D. calling ( )4. Tom, talk in class. A. doesn't B. does C. do D. don't ( )5. use the phone too much. Spend(花费) more time on your schoolwork. A. Not B. Don't C. No D. Can't ( )6. Don't a hat in class, please. A. to wear B. wearing C. wears D. wear ( )7. late for school. We must arrive on time. A. Isn't B. Be not C. Don't be D. Isn't be ( )8. Hey, James, on the wall. A. doesn't draw B. didn't draw C. don't draw D. drew ( )9. take the books out of the library. A. Not B. Can't C. Doesn't D. Don't ( )10. Come to our store and some clothes. T-shirts, shoes and shorts are on sale. A. buying B. to buy C. buy D. buys 二、用所给词的适当形式填空(40分) 1. (be) quiet! Your sister is sleeping. 2. (not run) in the hallways. 3. Hurry up! We must (be) on time for class. 4. (open) the door and let him come in. 5. Can we (eat) in the classroom? 6. Just (give) me three years and see what I will be like. 7. (look) out! Danger! 8. The sign says:“No (smoke)”. 9. Let's (not, talk) about it. 10. Time for dinner, children! (go) and (wash) your hands. 三、按要求改写句子(20 分) 1. We can't eat in class.(改为祈使句) in class. 2. You can't take photos in the museum.(改为祈使句) photos in the museum. 3. We play sports after school.(用 let 改写成祈使句) after school. 4. Forget to take an umbrella.(改为否定祈使句) take an umbrella. 5. You should be polite and treat one another with respect.(改为祈使句) 学科网(北京)股份有限公司 Unit 2 情态动词 can, have to, must 姓名: 班级: 分数: 一、单项选择(60分) ( )1.— Would you like to go shopping with us this afternoon? —I'd love to, but I study for a test. A. may B. have to C. can D. could ( )2.— Must I finish my homework before six o' clock? — Yes, you . A. can B. need C. must D. will ( )3.— Could I call you by your first name? — Yes, you . A. will B. must C. might D. can ( )4.— Must we dance at the party?— No, you . A. not have to B. don't have to C. mustn't D. haven't to ( )5.— Can I smoke here?— No, you . Look at the sign“No smoking” there. A. needn't B. wouldn't C. mustn't D. couldn't ( )6. It's raining(下雨) all day , so I stay at home. A. might B. have to C. must to D. can ( )7. Frank, talk in the library. You be quiet. A. can't; can B. doesn't; must C. don't; must D. no; have to ( )8.— Excuse me, can I use the computer? — Yes, you . A. can B. should C. must D. have to ( )9. You have to your clothes first. A. wash B. washed C. to wash D. washing ( )10.— Mom, can I go out with my friends?— No, you do your homework first. A. could B. can C. has to D. have to ( )11.— Must I leave now? It's still raining hard outside.— No, you . You can wait till the rain stops. A. needn't B. couldn't C. can't D. shouldn't ( )12. you help me with my Chinese? Yes,I can. A. Can B. Should C. Must D. Need ( )13.— Can you come to the party this evening?—I'm afraid not. I look after my grandmother. She is ill. A. can B. have to C. may D. could ( )14.— When you watch animals in the zoo, you feed them. A. needn't B. don't have to C. won't D. can't ( )15. You work all day. You be very tired. A. can B. should C. must D. need 二、用单词 can, can't, must, have to, don't 的正确形式完成句子。(20分) 1. She loves English, and she speak it well. 2. You follow(遵守) these school rules. 3. make so much noise. It's time for class. 4. We run in the hallways. 5. They go to school by boat because there's no bridge over the river. 三、根据汉语意思完成句子,每空一词。(20分) 1.我们上课不能迟到。(be late for迟到) We late for class. 2.当我回到家时,我必须先做家庭作业。 I my homework first when I get home. 3.你能把你的电脑游戏带到学校来吗?(bring 带来) you your computer games to school? 4.星期六你不必早起。 You get up early on Saturdays. 5.我们不能在课堂上吃零食,我们得在餐厅里吃。 We snacks in class. We eat in the dining hall. 祈使句练习参考答案 一、1-5ABADB 6-10DCCDC 二、1. Be 2. Don't run 3. be 4. Open 5. eat give 7. Look 8. smoking 9. not talk 10. Go; wash 三、1. Don't eat 2. Don't take 3. Let's play sports 4. Don't forget to 5. Be polite and treat one another with respect. 情态动词 can, have to, must练习参考答案 一、1-5BCDBC 6-10BCAAD 11-15AABDC 二、1. can 2. must 3. Don't 4. can't 5. have to 三、1. can't be 2. must do 3. Can; bring 4. don't have to 5. can't eat; have to 学科网(北京)股份有限公司 $