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展开Ⅰ. 选句子配图 Dn’t talk. Dn’t listen t music. Dn’t eat. Dn’t take phts.
答案: 1. Dn’t eat. 2. Dn’t talk. 3. Dn’t take phts. 4. Dn’t listen t music.
Ⅱ. 句型展示1. ——她必须在图书室里保持安静吗? ——是的。— she quiet in the library? —Yes, she . 答案: Des; have t be; des
2. ——我们能在走廊里听音乐吗? ——不, 不能。— we music in the hallways? —N, yu . 3. 我们不必天天来上学。We cme t schl every day. 答案: 2. Can; listen t; can’t 3. dn’t have t
Des he have t wear a unifrm at schl? 在学校里他必须穿着校服吗?
【自主领悟】(1)have t为情态动词, 意为“必须, 不得不”, 后接动词原形, 有人称、时态和数的变化。其第三人称单数形式为has t, 过去式为had t。例如: It’s t late. I have t g hme. 太晚了。我必须回家了。(2)have t的否定形式和疑问形式要借助于d/des/did等助动词来表示。例如: Yu dn’t have t clean the rm nw. 你现在没必要打扫房间。
【用法辨析】have t与must的区别
【活学活用】 ①他今天得去看望他爷爷。He visit his grandfather tday. ②今天你不必穿校服。Yu wear yur schl unifrm tday. ③你必须买票进电影院。Yu a ticket t g int the cinema. 答案: ①has t ②dn’t have t ③must buy
Ⅰ. 单项选择1. —Can we wear hats in class? — . A. Yes, we d B. N, we dn’tC. Yes, we can D. Yes, we can’t2. —Can I use yur ruler? —Yes, yu . A. may B. need C. can D. must
3. — d yu have t d after schl? —D my hmewrk, f curse. A. WhatB. WhenC. WhereD. Hw4. — late fr schl again. —Srry, I wn’t. A. Nt beB. Dn’t beC. Nt D. Dn’t5. Which f the fllwing pictures means“Please be quiet”?
Ⅱ. 句型转换1. We have t stay at hme. (改为一般疑问句) yu t stay at hme? 2. Bb has t get hme befre nine ’clck. (改为否定句)Bb get hme befre nine ’clck. 3. We can wear ur wn clthes. (改为一般疑问句, 并作否定回答)— yu yur wn clthes? —N, we . 答案: 1. D; have 2. desn’t have t 3. Can; wear; can’t
Ⅲ. 将Ⅰ栏中的问句和Ⅱ栏中的答语匹配Ⅰ1. Can we eat in the classrm? 2. Can students talk in the hallways? 3. D we have t wear a unifrm? 4. What is the first rule? 5. D I have t wear a hat?
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