七年级下册U6同步:情态动词
Warm-up: Reading
I’m Li Jian. I study at a middle school. I am the only child in my family. I live in a flat in the city centre. My dad works for a bank and my mum is a lawyer. Last month, my mum got a new job in Hong Kong. She stays there and only comes home at weekends.
I didn’t have to do any housework at home before. My mother used to do everything for me. She cooked meals for me and washed my clothes. But now she works in Hong Kong. She encourages me to look after myself. “You must learn to do everything for yourself while I am away,” she said. So I’m learning how to cook and wash clothes. I also tidy my bedroom and help my dad clean the kitchen and the living room.
一、精讲点拨
第一部分: 情态动词can, may和must用法展示
情态动词和不带to的动词不定式一起构成谓语，但ought除外。情态动词有一定的词义，没有人称和数的变化。它表示说话人的语气或情态，如请求、命令、愿望、能力以及可能性等。
情态动词 含义 能；能够；会；可以 示例 一般疑问句回答 We can buy a car to save our time on the Yes,…can./ road. No,…can’t. Can he swim? 许可 You can(=may) go / home now. If he comes, he can help us. / I could come earlier, if necessary. can/could 用于条件句中 be able to与can同义，常用以表示can所不能表示的将来或完成时的概念 She will be able to buy the house by the Yes,…is(are). end of next year. No,…isn’t/aren’t. Excuse me, may I Yes,…may/can. have a glass of may/might 允许、请求 water? 可能，或许；用might语气更加不肯定 No,…can’t/ mustn’t. These ideas may seem strange to you. / He might get lost. 表祝愿 May all your dreams come true. All the staff must arrive at the square before 9. We must not spit on the ground. --Yes, you must./No, -Must I return the you needn’t. book next week? 必须，应该 must must not意为“不可以”，“不许”；而need not才是must通常的否定回答
第二部分： 重点解读
【重点1】情态动词can, may, must的基本用法 ★ can 用法
1）表示能力，“能，会”
2) 表示“许可，可以”，用could表达语气更委婉
3）表示推测 “可能”，常用于否定句或疑问句中。（can’t表示一定不是） ★ may 用法
1）表示“请求，许可”（= can ）
2）表示推测，“可能，或许”（谈论可能性，一般用于肯定句。） ★ must用法
1）表示义务。意为“必须”（主观意志）。
2）表示有把握的判断或揣测。意为“想必、准是、一定”等，只用于肯定句。
【随堂练习】
( )1.---- Can I wear any clothes I like to school? ---- No, you can’t. You __________ wear a uniform.
A. might B. must C. will D. would ( )2.______you pass me a pen? I'd like to write down the telephone number. A. Need B. Could C. Must D. Should ( )3. ---- ______ I borrow your MP3? ----Sure. Here you are.
A. May B. Should C. Must D. Would ( )4. ---- ______ you play golf? ---- No. But I can play table tennis.
A．Can B. May C. Must D. Should ( )5.Cars, buses and bikes ______ stop when the traffic light is red.
A. can B. must C. may D. need
( )6. He said Kate _____come to the party. He was not so sure.
A. could B. might( )7. ---- ______ you swim?
---- Yes, but I’m not a good swimmer.
A. Can B. May C. Need D. Must ( )8. ---- Shall we go fishing after school?
---- Sorry, my parents said that I ______ be at home early. A. need B. must C. may D. can
【重点2】情态动词can, must的否定意义 ★ 情态动词否定式的意思
can’t不能，不会，不可能 mustn’t禁止，一定不要，不允许
【随堂练习】
C. need D. must
牛津深圳版英语七年级下册Unit6同步语法：情态动词(包含答案)
