1、Unit 4 Dont eat in class. 语法篇 一、知识点梳理一、知识点梳理 祈使句指的是表示命令、请求、建议或劝告的句子。其主语祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动常省略，谓语动 词用原形，句末用感叹号或句号，读降调。词用原形，句末用感叹号或句号，读降调。 祈使句的肯定句式一般分为以下三种类型：祈使句的肯定句式一般分为以下三种类型： 1.行为动词原形其它成分。例如：行为动词原形其它成分。例如： Make sentences after the model.根据例句造句。根据例句造句。 2. Be动词其它成分动词其它成分(形容词、名词或介词短语等
2、形容词、名词或介词短语等)。例如：。例如： Be careful when crossing the street.过马路时要小心。过马路时要小心。 3. Let宾语动词原形其它成分。例如：宾语动词原形其它成分。例如： Let him go back now.让他现在回去吧。让他现在回去吧。 祈使句的否定句式祈使句的否定句式 祈使句的否定句式，通常情况下在句首加上祈使句的否定句式，通常情况下在句首加上Dont或或Never，一般分为以下四种，一般分为以下四种 类型：类型： 1.在祈使句的肯定句式前加在祈使句的肯定句式前加Dot，构成，构成Dont行为动词原形其它成行为动词原形其它成 分。例如：
3、分。例如： Dont say that again!别再那样说了！别再那样说了！ 2.在在Be动词引起的肯定祈使句前加动词引起的肯定祈使句前加Dont，构成，构成Dont be其它成分其它成分(形形 容词、名词或介词短语等容词、名词或介词短语等)。例如：。例如：Dont be careless.不要粗心。不要粗心。 注意：在这种句型中注意：在这种句型中be不能省略；否定副词不能省略；否定副词not不可置于不可置于be之后。之后。 3. Let引起的祈使句的否定形式有两种：引起的祈使句的否定形式有两种： (1)Let开头的祈使句，如果后面跟第一、第三人称名词或代词的宾格，可在开头的祈使句，如果后
4、面跟第一、第三人称名词或代词的宾格，可在 Let前加前加Dont，也可在，也可在Let后宾格的名词或代词后面加后宾格的名词或代词后面加not。 (2)如果以如果以Lets开头的祈使句，必须在开头的祈使句，必须在Lets后加后加not。例如：。例如： Dont let me go with her tomorrow. Let me not go with her tomorrow. 不要让我明天跟她一起去。不要让我明天跟她一起去。 Lets not tell her the truth whenever we meet her. 无论什么时候我们碰到她，都不要告诉她真相。无论什么时候我们碰到她，
5、都不要告诉她真相。 4.在公共场合的提示语中，否定祈使句常用在公共场合的提示语中，否定祈使句常用No名词名词/V-ing形式结形式结 构，表示禁止做某事。例如：构，表示禁止做某事。例如： NO PHOTOS! 禁止拍照！禁止拍照！ 一、单词拼写一、单词拼写 26. I think students should follow the school r . 27. We have to be q in the library. 28. Dont go out b you finish your homework. 29. The room is too small. Lets go o . 30
6、. I learn how to use the computer and I f very happy. 二、适当形式填空适当形式填空 31. Dont be_ (noise) in the classroom. 32. I feel very_(relax) after having a good rest. 33. I have to do the_ (dish) after dinner. 34. I have many storybooks, but Tom has_(many). 35. Please keep your eyes_(close). ules uiet efore
7、utside eel noisy relaxed dishes more closed 三、单项选择三、单项选择 1. picture books in class, please. A. Not read B. No read C. Not reading D. Dont read 2. Ssh! talk loudly. The baby is sleeping right now. A. Do B. Does C. Dont D. Doesnt 3. Do you wear a uniform at school? A. must B. have to C. may D. can 4.
8、You stop when the traffic light turns red. A. can B. had better C. need D. must 5. - you give your seat to this old man? - Of course. A. Can B. Shall C. Need D. Must 6. There are people in the hall and there are noise(噪音噪音) in it. A. too many; too much B. too many; much too C. too much; too many D.
9、too much; much too 7. Our classroom is . We must clean it. A . dirty B. sorry C . quiet D . noisy 8. - What do you do after dinner? - I . A . have breakfast B . have lunch C . get up early D . watch TV 9. - What are your rules at home? - I have to go to bed ten. A . after B . before C . in D . on 10
10、. - Are you happy? - . I have a lot of rules. A. Yes, I am B. Yes, I do C. No, Im not D. No, I dont 11. - Whats your teacher like? - She is always strict us. A. in B. with C. to 12. Mr. Black always goes to work time. He is never late. A. at B. on C. in D. with 13. - I go out with my friends, Mom? -
11、 No, you cant. You must do your homework first. A. Must B. Have to C. Do D. Can 14. On Sunday I have to go to the farm my parents. A. to help B. help C. helping D. helped 15. - What are the rules at your school? - Dont run in the hallways and arrive late for class. A. not to B. wont C. dont D. no 四、
12、按要求转换句型四、按要求转换句型 1. Do your homework at home. (改为否定句改为否定句) your homework at home. 2. Do you have a good time at school? (改为同义句改为同义句) Do you have at school? 3. I can eat in the dining hall. (就划线部分提问就划线部分提问) you eat? 4. Please keep quiet in class. (改为同义句改为同义句) Dont be in class. 5. Must we eat in the h
13、allways? (作否定回答作否定回答) , . Dont do fun Where can noisy No you neednt 6. You cant listen to music in the classroom. (改为祈使句改为祈使句) music in the classroom. 7. Go out on school nights. (改为否定句改为否定句) out on school nights. 8. She has to wash the dishes after meals. (改为一般疑问句改为一般疑问句) she wash the dishes after
14、meals? 9. We can eat lunch at our school. (改为以改为以Lets开头的句子开头的句子) lunch at our school. 10. Dont draw pictures on the blackboard. (改为肯定句改为肯定句) on the blackboard. Dont listen to Dont go Does have to Lets eat Draw pictures 五、按要求完成句子五、按要求完成句子 1. 请找布朗先生接电话好吗请找布朗先生接电话好吗? speak to Mr.Brown? 2. 在周末我喜欢去那儿，但是我
15、得先做一些家务活。在周末我喜欢去那儿，但是我得先做一些家务活。 I go there on weekends, but I_ _ _. some housework first. 3. 地球是我们美丽的家园地球是我们美丽的家园, 我们必须保持地球清洁。我们必须保持地球清洁。 The earth is our beautiful home. We . 4. 不要在街道上打篮球。不要在街道上打篮球。 in the street. 5. 禁止在草上行走。禁止在草上行走。 on the grass. Can I like to have to do must keep it clean Dont pl
16、ay basketball Dont walk 6. 她会说一点儿中文。她会说一点儿中文。 She speak a little Chinese. 7. - 学生们可以在走廊上跑吗？学生们可以在走廊上跑吗？ - 不，他们不能。不，他们不能。 - Can the students run in the hallways? - No, they . 8. - 我能在教室里吃东西吗？我能在教室里吃东西吗？ - 不，你不能。不，你不能。 - I in the classroom? - No, you cant. 9. 你上课不要接电话。你上课不要接电话。 You answer the telephon
17、e in class. 10. 我我10点钟之前不得不上床睡觉。点钟之前不得不上床睡觉。 I go to bed before 10:00. can cant Can eat mustnt have to 七、完形填空七、完形填空 My name is Li Xia. I am a middle school student. As a student, I have many rules. I cant be late 1 class. I must 2 on time. I cant run in the hallways. I cant 3 in the classroom. I mus
18、t eat in the dining hall. I 4 listen to music in the classroom, but I can listen to it outside. I have to wear my school 5 every day. I cant wear a hat. In the school library, we must be quiet. We cant talk loudly or laugh loudly. At home, I have to get up early and help my mom 6 breakfast. I have t
19、o make the bed and 7 my bedroom every morning. I cant watch TV 8 play computer games 9 school nights. On weekends, I have to practice the guitar and the piano. I cant play 10 on school days. I am not happy. What can I do? 1. A. to B. with C. for D. in 2. A. am B. is C. are D. be 3. A. fight B. eat C. sing D. dance 4. A. cant B. can C. do D. dont 5. A. book B. shoe C. uniform D. rules 6. A. do B. make C. to does D. to makes 7. A. make B. eat C. clean D. follow 8. A. or B. and C. with D. for 9. A. in B. at C. on D. with 10. A. the basketball B. the soccer C. volleyball D. piano
