Unit 4 Don’t eat in class.知识点背笔记 2023-2024学年人教版七年级英语下册

七年级下册 人教版2024 Unit 4 Don’t eat in class.知识点背笔记 1.单元语法：祈使句 表要求、命令、请求等语气，以动词原形开头可用please 表更有礼貌，否定祈使句在句首加 don’t 不要上课吃东西。 Don’t eat in class. 安静！ Be quiet. 上课别迟到. Don’t be late for class.= Don’t arrive late for class. 请打开门 Please open the door. 请看黑板. Look at the blackboard , please. No parking. 禁止停车。 No photos! 禁止拍照！ Don’t let them come in. 别让他们进来。 Let’s not do that again.我们别再那样做了。 Eg. 1)________late for class! A.Don ’t B.Not be C.Don’t be 2)________worry about me Mom. I’ve grown up. A.Don ’t B.Don’t be C.Not D.Not be 3) Run in the hallways. （改为否定句） ________ ________in the hallways. 4) 英译汉：别在马路上跑。_______________________ 5) ___________(not) talk.. It’ s time for class. 2. Don’t fight. 不要打架. fight 作动词，意为“打架、打仗” 。其过去式为 fought. fight with sb和...打架 fight with his brother 3. must + 动词原形 She must go.她必须走. I must do my homework. 我必须做作业. must无人称和单数的变化。在表示过去、将来和完成时，用have to的相应形式来代替must. ①“必须，应该”。Eg:You must finish your homework first. 你必须先完成作业。 ②“一定，准是”。Eg:The tall man must be your father. 那高个子男人一定是你的爸爸。 · 以must开头的一般疑问句，它的肯定回答用must，否定回答用needn’t（不必要），这个要记住的，经常考。mustn’t（严禁）表示“不允许，禁止”。 Eg:---Must I go there on foot?我必须得走过去吗？---Yes, you must. ---No,you needn’t. /No，you don't have to不，你不需要。 You mustn’t park your car here.你禁止在这儿停车。 Eg. 1）---Must I clean the blackboard? ---No,you ________. A.needn’t B.mustn’t C.can’t D.may not 2）It’s very warm outside.You ________wear the coat. A.have to B.hadn’t C.don’t have to D.mustn’t 3）The children ________play football on the road. A.can B.must C.mustn’t D.may 4 have to do 不得不做...，必须做... has to do have to be on time have to be quiet have to do the dishes I have to clean my room on the weekend. I don’t have to clean my room on the weekend. Do you have to clean your room on the weekend? Yes, I do. / No, I don’t. She has to make breakfast every day. She doesn’t have to make breakfa