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人教新目标 (Go for it) 版七年级下册Section A精品课件ppt
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这是一份人教新目标 (Go for it) 版七年级下册Section A精品课件ppt，文件包含Unit4DonteatinclasssectionAgrammarfocus-3c课件pptx、Unit4DonteatinclasssectionAgrammarfocus-3c教案docx、Unit4donteatinclasssectionAgrammarfocus-3c练习docx等3份课件配套教学资源，其中PPT共38页， 欢迎下载使用。
T learn Imperatives Dn’t…:Dn’t run in the hallways.T learn t use can fr permissin:Can we eat in the classrm?T learn t use mdal verbs have t & must:We have t be quiet in the library.We must be n time fr class.
D yu knw the rules in these places?
dining hall
D yu knw the rules fr the schl library?
Dn’t eat in the library.
Dn’t sing in the library.
Dn’t take pictures/phts in the library.
Grammar Fcus
What are the rules?
Can we eat in the classrm?
We must be n time fr class.
N, we can’t, but we can eat in the dining hall.
Yes, we can./ N, we can’t.
Yes, he des./ N, he desn’t.
We have t be quiet in the library.
(1)用来表示请求、命令、劝告、警告、禁止等的句子叫祈使句。祈使句因对象（主语）都是第二人称，所以通常省略主语(yu)而以动词原形开头，句末用句号或感叹号，读时用降调。
Please bring sme water t me. 请给我拿点水来。（表请求）G ut! 出去！（表命令）Dn’t run in the hallways. 不要在走廊里跑。（表劝告）Be careful! 小心！（表警告）N eating! 禁止吃东西！（表禁止）
? ? ? ? ? ?
Sit dwn, please.
Dn’t run here.
Be quiet, please.
Dn’t be nisy.
Let me help yu.
Dn’t let him g./Let him nt g.
(1)表示强调时，可在动词原形前加 d，意为 “一定，务必”。一定要来看我。
N swimming!
D cme t see me.
(2)为表示礼貌，可在祈使句的句首或句末加上 please。 当 please 在句末时，要用逗号与句子其他部分隔开。请遵守校规。
Please fllw the schl rules.
＝Fllw the schl rules, please.
can/must/have t +动词原形have t 与其他情态动词不同，有人称和数的变化
情态动词 must 与 have t
1.情态动词 must 的用法
(1)意为“必须”，表示主观的义务或必要，无人称、数和时态的变化。以 must 开头的一般疑问句，肯定回答一般用 must，否定回答一般用 needn’t 或dn’t/desn’t have t，意为“不必”，不用 mustn’t；mustn’t 常用于否定句中，表示“不允许；禁止”。
我必须做作业。你不能在这儿游泳。我们必须马上打扫教室吗？ 不，你们不必。你们可以放学后打扫。 —________ we clean the classrm at nce? —N, yu _______. Yu may clean it after schl.
I must d my hmewrk.
Yu mustn’t swim here.
(2)意为“一定；准是”，表示肯定推测，用于肯定句中。这本书一定是玛丽的。
The bk must be Mary’s.
2.情态动词 have t 的用法
(1) have t 意为“必须；不得不”，后接动词原形，表示客观需要做的事情。现在我不得不离开。
I have t leave nw.
(2) have t 有人称、数和时态的变化，其 第三人称单数形式为 has t。辛迪每天必须铺床。
Cindy has t make the bed every day.
(3)含有 have t 或 has t 的句子需分别借助助动词 d 或 des 构成疑问句或否定句。她必须早起吗？ 你不必8点钟到那儿。
Des she have t get up early?
Yu dn’t have t arrive there at eight.
Write the rules fr the schl library.
Dn’t eat r drink.
Dn’t listen t music.
Dn’t take phts.
Use the wrds t make questins abut the rules. Then write answers accrding t yur schl.
1. Be quiet? (she/have t /in the library) Q: Des she have t be quiet in the library? A: Yes, she des.2. Eat? (he/have t/in the dining hall) Q: _________________________________________ A: _________________________________________
Des he have t eat in the dining hall?
Yes, he des.
3. Listen t music? (we/can/in the hallways) Q: _________________________________________ A: _________________________________________4. Wear a hat?(we/can/in the classrm) Q: _________________________________________ A: _________________________________________
Can we listen t music in the hallways?
N, we can’t.
Can we wear a hat in the classrm?
Make up five cl rules fr yur dream schl. Share yur rules with the class. Yur classmates vte fr the Clest Schl!
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 class.
We dn’t have t wear schl unifrm.
We can listen t music in class.
At my dream schl, We can __________________.We can’t _________________.We dn’t have t __________.We dn’t have t __________. We have t /must _________.
Make up the cl rules fr yur dream schl.
一、单项选择。1. ____ listen t music in the classrm. A. Nt B．N C．Dn't2. Tm，please ____ the classrm nw. A. clean B．t clean C．cleans3. Let's ____ n time fr classes. A. be B．be nt C．are4. She has t ____ her hmewrk every night. A. des B．d C．ding5. Srry，yu ____ play basketball in the classrm. A. can't B．dn't C．dn't have t
二、按要求完成句子。6. Lily can play the guitar.(改为一般疑问句并作否定回答) —_____ Lily _____ the guitar? —____，she ______．7. Jack has t play the pian every weekend.(改为一般疑问句) _____ Jack ________ play the pian every weekend?8. Be quick.(改为否定句) __________________________________9. Yu can't eat fd in class.(改为祈使句) ___________________________________10. Yu can't be late fr class next time.(改为祈使句) _____________________________________
Dn't be quick.
Dn't eat fd in class.
Dn't be late fr class next time.
11. He has t eat breakfast quickly. (改为一般疑问句) ____________________________________________12. Play vlleyball after class. (改为否定句) ___________________________________________
Des he have t eat breakfast quickly?
Dn’t play vlleyball after class.
13. We can wear sprts shes in class. (改为一般疑问) ___________________________________________14. Dn’t arrive late fr class. (改为同义句) ____________________________________________15. Eric has t d his hmewrk befre six. (对划线部分提问) ____________________________________________
Can we wear sprts shes in class?
Yu must be n time fr class.
What des Eric have t d befre six?
1. Remember the sentences in the Grammar Fcus.2. Write five rules in yur family.3. Preview the new wrds and expressins.
T learn Imperatives Dn’t…:Dn’t run in the hallways.T learn t use can fr permissin:Can we eat in the classrm?T learn t use mdal verbs have t & must:We have t be quiet in the library.We must be n time fr class.
D yu knw the rules in these places?
dining hall
D yu knw the rules fr the schl library?
Dn’t eat in the library.
Dn’t sing in the library.
Dn’t take pictures/phts in the library.
Grammar Fcus
What are the rules?
Can we eat in the classrm?
We must be n time fr class.
N, we can’t, but we can eat in the dining hall.
Yes, we can./ N, we can’t.
Yes, he des./ N, he desn’t.
We have t be quiet in the library.
(1)用来表示请求、命令、劝告、警告、禁止等的句子叫祈使句。祈使句因对象（主语）都是第二人称，所以通常省略主语(yu)而以动词原形开头，句末用句号或感叹号，读时用降调。
Please bring sme water t me. 请给我拿点水来。（表请求）G ut! 出去！（表命令）Dn’t run in the hallways. 不要在走廊里跑。（表劝告）Be careful! 小心！（表警告）N eating! 禁止吃东西！（表禁止）
? ? ? ? ? ?
Sit dwn, please.
Dn’t run here.
Be quiet, please.
Dn’t be nisy.
Let me help yu.
Dn’t let him g./Let him nt g.
(1)表示强调时，可在动词原形前加 d，意为 “一定，务必”。一定要来看我。
N swimming!
D cme t see me.
(2)为表示礼貌，可在祈使句的句首或句末加上 please。 当 please 在句末时，要用逗号与句子其他部分隔开。请遵守校规。
Please fllw the schl rules.
＝Fllw the schl rules, please.
can/must/have t +动词原形have t 与其他情态动词不同，有人称和数的变化
情态动词 must 与 have t
1.情态动词 must 的用法
(1)意为“必须”，表示主观的义务或必要，无人称、数和时态的变化。以 must 开头的一般疑问句，肯定回答一般用 must，否定回答一般用 needn’t 或dn’t/desn’t have t，意为“不必”，不用 mustn’t；mustn’t 常用于否定句中，表示“不允许；禁止”。
我必须做作业。你不能在这儿游泳。我们必须马上打扫教室吗？ 不，你们不必。你们可以放学后打扫。 —________ we clean the classrm at nce? —N, yu _______. Yu may clean it after schl.
I must d my hmewrk.
Yu mustn’t swim here.
(2)意为“一定；准是”，表示肯定推测，用于肯定句中。这本书一定是玛丽的。
The bk must be Mary’s.
2.情态动词 have t 的用法
(1) have t 意为“必须；不得不”，后接动词原形，表示客观需要做的事情。现在我不得不离开。
I have t leave nw.
(2) have t 有人称、数和时态的变化，其 第三人称单数形式为 has t。辛迪每天必须铺床。
Cindy has t make the bed every day.
(3)含有 have t 或 has t 的句子需分别借助助动词 d 或 des 构成疑问句或否定句。她必须早起吗？ 你不必8点钟到那儿。
Des she have t get up early?
Yu dn’t have t arrive there at eight.
Write the rules fr the schl library.
Dn’t eat r drink.
Dn’t listen t music.
Dn’t take phts.
Use the wrds t make questins abut the rules. Then write answers accrding t yur schl.
1. Be quiet? (she/have t /in the library) Q: Des she have t be quiet in the library? A: Yes, she des.2. Eat? (he/have t/in the dining hall) Q: _________________________________________ A: _________________________________________
Des he have t eat in the dining hall?
Yes, he des.
3. Listen t music? (we/can/in the hallways) Q: _________________________________________ A: _________________________________________4. Wear a hat?(we/can/in the classrm) Q: _________________________________________ A: _________________________________________
Can we listen t music in the hallways?
N, we can’t.
Can we wear a hat in the classrm?
Make up five cl rules fr yur dream schl. Share yur rules with the class. Yur classmates vte fr the Clest Schl!
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 class.
We dn’t have t wear schl unifrm.
We can listen t music in class.
At my dream schl, We can __________________.We can’t _________________.We dn’t have t __________.We dn’t have t __________. We have t /must _________.
Make up the cl rules fr yur dream schl.
一、单项选择。1. ____ listen t music in the classrm. A. Nt B．N C．Dn't2. Tm，please ____ the classrm nw. A. clean B．t clean C．cleans3. Let's ____ n time fr classes. A. be B．be nt C．are4. She has t ____ her hmewrk every night. A. des B．d C．ding5. Srry，yu ____ play basketball in the classrm. A. can't B．dn't C．dn't have t
二、按要求完成句子。6. Lily can play the guitar.(改为一般疑问句并作否定回答) —_____ Lily _____ the guitar? —____，she ______．7. Jack has t play the pian every weekend.(改为一般疑问句) _____ Jack ________ play the pian every weekend?8. Be quick.(改为否定句) __________________________________9. Yu can't eat fd in class.(改为祈使句) ___________________________________10. Yu can't be late fr class next time.(改为祈使句) _____________________________________
Dn't be quick.
Dn't eat fd in class.
Dn't be late fr class next time.
11. He has t eat breakfast quickly. (改为一般疑问句) ____________________________________________12. Play vlleyball after class. (改为否定句) ___________________________________________
Des he have t eat breakfast quickly?
Dn’t play vlleyball after class.
13. We can wear sprts shes in class. (改为一般疑问) ___________________________________________14. Dn’t arrive late fr class. (改为同义句) ____________________________________________15. Eric has t d his hmewrk befre six. (对划线部分提问) ____________________________________________
Can we wear sprts shes in class?
Yu must be n time fr class.
What des Eric have t d befre six?
1. Remember the sentences in the Grammar Fcus.2. Write five rules in yur family.3. Preview the new wrds and expressins.
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