高一英語人教版必修3-Unit-2-healthy-eating-grammar-課件

1、Period 6 GrammarPeriod 6 GrammarModal Verbs Modal Verbs ought to have toought to have tomust need must need I. I. (Revision) (Revision) What What modal verbsmodal verbs ( (情態(tài)情態(tài)動詞動詞) )have you learned?have you learned?can/couldcan/couldmay/ might may/ might will/ would will/ would shall/ shouldshall/

2、 should1. By lunchtime they would all be sold. 2. His restaurant ought to be full of people.3. What could have happened?4. Nothing could have been better?5. Something terrible must have happened.6. I will help you lose weight and be fit in two weeks. 7. He couldnt have Yong Hui getting away with tel

3、ling people lies.8. He had better do some research.A.A.Intention (Intention (意向意向) B. Duty() B. Duty(責(zé)任責(zé)任 ) C. Promise ( ) C. Promise (許諾許諾) ) D. Possibility D. Possibility （可能性）（可能性） E. Guessing E. Guessing（猜測）（猜測）(D)(D)(E)(B)(A)(C)(D)(D)I think she _ apologiseto the public.You _ go andsee the doct

4、or. 我認為她我認為她應(yīng)該應(yīng)該向公眾道歉。向公眾道歉。你你應(yīng)當(dāng)應(yīng)當(dāng)去找醫(yī)生看看病。去找醫(yī)生看看病。ought toought toFill in the blanks according to the Chinese.We _ put on warm clothes in winter. 冬天的時候，我們不冬天的時候，我們不得不得不穿上穿上溫暖的衣服。溫暖的衣服。你你需要需要把面粉和黃油和在一起。把面粉和黃油和在一起。You _ mix the flour and the butter. have toneedIn England traffic _ keep to the left. 在英

5、國，車輛在英國，車輛必須必須靠左行駛?？孔笮旭偂ll passengers _wear seat belts.所有乘客都所有乘客都必須必須系安全帶。系安全帶。mustmustneed / needntought to/should must / have to ought to 和和should都為都為“_”的意思，的意思，可用于各種人稱?？捎糜诟鞣N人稱。ought to 的語氣稍重的語氣稍重一些。一些。 You ought to (should) follow yourteachers advice.ought toshould否定形式：否定形式：應(yīng)該應(yīng)該ought not to / ou

6、ghtnt Advice and duty should 與與 ought to 相同點相同點:從道義從道義,義務(wù)上應(yīng)做義務(wù)上應(yīng)做的事的事:應(yīng)該應(yīng)該,應(yīng)當(dāng)應(yīng)當(dāng)” 不同點不同點:ought to有引申的用有引申的用法法”按常理應(yīng)當(dāng)按常理應(yīng)當(dāng),非?？赡芊浅？赡艿氖碌氖?表應(yīng)該表應(yīng)該,側(cè)重責(zé)任側(cè)重責(zé)任,義務(wù)義務(wù):1. -Did the train arrive in time?-No. It _ two hours ago.A. must have arrived B. ought to have arrivedC. must arrive D. ought to arriveB must的用法的用

7、法 1. 必須必須 - Must we hand in our exercise today? -Yes, you _. -No , you_. -No, you _.must / have tomustneednt dont have to 2. Must I drive to his house and pick up the children? No, . A. you shouldnt B. you might not C. you neednt D. you mustntC have to 的用法的用法 1. must表示一種表示一種_的需要，意思是的需要，意思是“必須必須” 無時態(tài)

8、變化。無時態(tài)變化。 2. have to表示一種表示一種_的需要，意思是的需要，意思是“不得不不得不”。有時態(tài)變化。有時態(tài)變化。否定形式：否定形式：_主觀主觀客觀客觀dont have to I _go now.my mother is ill,so I _go now. musthave to主觀看法主觀看法客觀需要客觀需要注意對注意對need問句的回答問句的回答:-Need I finish the work today?-Yes, _. No, _. No, _.you mustyou needntyou dont have toneed / neednt 在不表示推測的情態(tài)動詞中在不表

9、示推測的情態(tài)動詞中, 我們要注我們要注意以下方面的問題意以下方面的問題:1.表示能力、許可的情態(tài)動詞的用法。表示能力、許可的情態(tài)動詞的用法。表示能力表示能力: can, could, be able tobe able to 能用于各種時態(tài)。能用于各種時態(tài)。can / could 只能表示現(xiàn)在或過去的能力。只能表示現(xiàn)在或過去的能力。表示許可表示許可: may / might, can / could might, could 比較委婉比較委婉, 一般多用于疑一般多用于疑問句。問句。在以在以could, might 表示征詢對方意見表示征詢對方意見或表示請求時，回答應(yīng)相應(yīng)使用或表示請求時，回答應(yīng)

10、相應(yīng)使用can, may。2. 表示否定的情態(tài)動詞的用法表示否定的情態(tài)動詞的用法:mustnt 不準(zhǔn)不準(zhǔn); 禁止禁止 neednt 沒必要沒必要 ( = dont have to )cant 不能不能; 不可能不可能may not 不可以不可以; 可能不可能不shouldnt 不應(yīng)該不應(yīng)該 ( = ought not to )部分情態(tài)動詞的否定式是情態(tài)動詞中的部分情態(tài)動詞的否定式是情態(tài)動詞中的考點之一?？键c之一。不同的不同的“肯定肯定”程度可按下列層次排列：程度可按下列層次排列： He is at home. (事實事實) He must be at home. (非?？隙ǖ耐茢喾浅？隙ǖ耐茢?/p>

11、) He could be at home. (很可能很可能) He ought to be at home. (很可能很可能) He may be at home. (僅僅可能而已僅僅可能而已) He might be at home. (或許或許, 非常不確定非常不確定)He couldnt be at home. (很可能不在家很可能不在家) He cant be at home. (一定不在家一定不在家)He isnt at home. (事實事實) 1. Where is my pen? I _ it. A. might lose B. would have lost C. shou

12、ld have lost D. must have lost2. I didnt hear the phone. I _ asleep. A. must be B. must have been C. should be D. should have been課堂練兵課堂練兵3. Ted, you _ play with the knife. You _ hurt yourself. A. dont have to; must B. mustnt; may C. neednt; can D. oughtnt to; have to4. Must he come to apologize to

13、you himself? Yes, he _. A. can B. must C. may D. need5. Must I take a taxi to go to the Summer Palace? No, you _. You can walk there. A. cant B. dont have to C. mustnt D. ought not to1. What do you mean, there are only ten tickets? There _ be twelve. (2015 全國全國I卷卷) A. should B. would C. will D. shal

14、l2. Hi, Tom. Any idea where Jane is? She _ in the classroom. I saw her there just now. (2014重慶卷重慶卷) A. shall be B. should have been C. must be D. might have been 3You_ buy a gift , but you can if you want to. (2015 湖南卷湖南卷) A. must B. mustnt C. have to D. dont have to4. Mark _ have hurried. After driving at top speed, he arrived half an hour early. (2016 天津卷天津卷) A. neednt B. wouldnt C. mustnt D. couldnt5. You _ park here! Its an emergency exit.(緊急出口緊急出口)(2015 重慶卷重慶卷) A. wouldnt B. neednt C. couldnt D. m