,新课标人教版课件系列,高中英语必修3-2.8,Language study,Word study,weak,weakness,strong,strength,beautiful,beauty,digestive,digestion,balanced,balance,amazing,amazement,ought to,get away,slimming foods,curiosity,throw away,fiber,digestion,balanced diet,Grammar,1. ought toshouldshould 和ought to 都为“应该”的意思，可用于各种人称。ought to 的语气稍重一些。 You ought to (should) follow your teachers advice.,表示主语的义务或责任：You should take care of your sister你应当去照顾你。或指出个正确、明智的动作：They shouldnt allow parking here；the street is too narrow这儿不该允许停车；马路太窄了。,should 和ought to 后面跟动词不定式的完成式,其肯定句表示”过去应该做而未做”, 其否定句则表示”过去不该做但做了”。 You should/ought to have made the decision a week ago. I shouldnt have made such a foolish mistake.,注意,2. must和have tomust的用法 1）表示主观的义务和必要, 主要用于肯定句和疑问句, 意思为 “必须，得，要”；由must 引起的疑问句，肯定回答要用must或have to, 否定回答要用neednt或dont have to, 意思是“不必” ；,must的否定形式mustnt表示禁止，意思是“不能，不许”。如： Must I finish the task right now? 我现在必须完成这个工作吗？,Yes, you must. / Yes, you have to. 是的。 (No, you neednt. / No, you dont have to. 不，不必。) You mustnt come here without permission. 未经允许，你不能来这儿。,have to 的用法,1）must表示一种主观的需要，而have to 表示一种客观的需要，意思是“不得不”。 如： I have to attend an important meeting this afternoon. 今天下午我不得不参加一个重要的会议。,Mother is out, so I have to look after the shop.妈妈不在家，因此我不得不照看商店。 2）have to 的否定形式是dont have to, 相当于neednt。如：They dont have to buy a computer at present. 他们目前没有必要买电脑。,用下列图片造句。,做适当的运动,You should do some sports.,慢慢地进食，并有助消化。,You ought to eat slowly and its good for digestion.,You should help to set the dinner table.,You should keep your room clean.,We must listen to the teacher carefully.,We mustnt eat in class.,You ought to hand on the homework on time.,You shouldnt be late for school.,We should ask question actively.,We shouldnt make noise in class.,Make sentences,1. 你每天最少要练习一小时口语。You must practise speaking English at least an hour a day2. 我每天不得不练习一小时口语！I have to practise speaking English an hour a day！,3. 你应该每天练习不止一小时。You ought toshould practice English for more than an hour4. 你应该读一下这个。它写得很好。You ought toshould read thisIts very good 5. 你必须读这个。写得精彩极了！You must read thisIts marvelous！,Please choose a proper phrase and according to the situations complete the sentences by using should (not) or ought (not) to.1. Lisa needs a change. She _. 2. My salary is very low. You _.,should/ought to take a few days off,should look for a new job,3. Nick always has difficulty getting up. He _. 4. What a beautiful view! You _.5. Billys room isnt very interesting. He _.,ought not to /shouldnt go,to bed so late,should take a photo,shouldnt/ ought not to use her,car so much,-Do you know where Mary is? I couldnt find her anywhere.-Well. She _ have gone far-her coat is still here.A. shouldntB. mustntC. cantD. wouldnt,C,2. Mr. White_ at 8:30 for the meeting, but he didnt show up. A. should have arrived B. should arrive C. should gave had arrived D. should be arriving,A,3. She_ taller, but she ate too little. A. can grow B. can have grown C. could grow D. could have grown,D,4. Janny_ have kept her word. I wonder why she changed her mind.A. mustB. shouldC. needD. would,B,5. -Must I be here earlier?-No, you_ because your are busy.A. mustntB. dontC. dont have toD. Had better not to,C,6.- Is John coming by train?- He should, but he _ not. He likes driving his car. (NMET 2002)A. must B. can C. need D. may,7. Johnny, you _ play with theknife, you _ hurt yourself.A. wont; cant B. mustnt; may C. shouldnt; must D. cant; shouldnt,8. The fire spread through the hotel very quickly but everyone _ get out.A. had to B. wouldC. was able to D. could,9. _ you like to have a walk with us this evening?A. Could B. Will C. Would D. Can,10. Mr Wang, I will go and fetch four chairs for the meeting.You _fetch four; two will do. A. wont B. couldnt C. shouldnt D. neednt,Homework,1. Preview the reading (2) and reading task on Page 53. See how the story ended.2. Find some information about healthy eating on the Internet.,