初中人教新目标 (Go for it) 版Unit 4 Don’t eat in class.Section A课堂教学ppt课件
展开Please take ut a piece f paper and write dwn sme schl rules.Then make sme new schl rules r class rules. Then let's discuss yur schl rules，which is gd，and which we shuld change？
We can't run in the hallway.
What are the rules in ur schl?
We have t wear unifrms t schl.
And what eles?
祈使句一般用来表示请求、命令、劝说、号召、警告等。在祈使句中，通常省略主语yu，其肯定形式以动词原形开头，否定形式是在动词原形前加dn’t。祈使句句尾用句号或感叹号，读时用降调。为表示礼貌，可以在句首或句尾加上please。句末用please时，前面通常加逗号。
肯定句：动词原形 (+宾语)+其他. 否定句：Dn’t+动词原形 (+宾语) +其他.Wear the schl unifrm n weekdays, please. 上学日请穿校服。Dn’t watch TV befre dinner. 晚饭前不要看电视。
肯定句：Be+表语+其他. 否定句：Dn’t+be+表语 +其他.Be careful next time.下次要细心。Dn’t be late fr schl! 上学不要迟到!
肯定句：Let+宾语+动词原形+其他. 否定句：Dn’t+let+宾语+动词原形+其他. 或Let+宾语+nt+动词原形+其他.Let’s have a rest. 咱们休息一下吧。Dn’t let him g swimming. = Let him nt g swimming. 不要让他去游泳。
(1) N+v-ing! / N+名词!N fishing! 禁止钓鱼!N parking! 禁止停车!N phts! 禁止拍照!(2) never 代替dn’t 来加强语气。Never give up! 决不放弃!
共同点二者均可表示“必须”，其后均接动词原形。It’s t late. I have t take a taxi. 太晚了，我必须乘出租车。I must g nw. 我必须现在就走。
Dn’t eat in the library. Dn’t listen t music in the library.Dn’t take phts in the library.
Q:____________________________________(she/have t/in the library)?A: ____________________________________.
Des she have t be quiet in the library?
Yes, she des
Q:___________________________________ (he/have t/in the dining hall)?A:___________________________________
Des he have t eat in the dinning hall?
Yes, he des.
Q:___________________________________(we/can/in the hallways)?A:___________________________________
Listen t music?
Can we listen t music in the hallways?
N, we can’t.
Wear a hat?
Q:___________________________________(we/can/in the classrm)?A:___________________________________
Can we wear a hat in the classrm?
At my dream schl, we dn’t have t cme t schl every day. We …
At my dream schl, we dn’t have t cme t schl every day. We can eat in the classrm.We can listen t music in class.We dn’t have t d hmewrk.We dn’t have t wear schl unifrms at schl.
▲must和have t的用法
(1)你不得不穿校服吗？D yu have t wear the schl unifrm?(2)——我现在必须要走吗？ —Must I g nw? ——不，你不必。 —N，yu needn't.
2. Can we bring music players t schl？ 我们可以把音乐唱片机带到学校吗？
Sectin A (Grammar Fcus－3c)
Ⅰ.根据句意，用方框中所给词组的适当形式填空。
1. Yu shuld ____________．The baby is sleeping.2. She likes __________________ n schl days.3. We can't listen t music __________．
in class，n time，have t，wear a unifrm，be quiet
wearing a unifrm
4. —Can I finish my hmewrk tmrrw? —I am afraid nt.Yu ________ hand it in tday.5. Yu can't arrive late fr class.Yu must be _________．
1. David, _______ make truble at ’t B. dn’t C. desn’t D.didn't2. —Mm, can I play cmputer games this evening? —_______ yur hmewrk first, and then we’ll talk abut it.A. Finishing B. Finish C. T finish D. Finished3. Buses _______ stp when the traffic lights turn red.A. can B. may C. must D. might
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