2009年高考英语第一轮复习课件必修三Unit 2 Healthy eating.pptVIP

Unit 2 Healthy eatingCOME AND EAT HERE (I) 课文填空 Language points for Reading I Language points for Reading II ought to ought to 用于表示想必会(语气较must 弱)： 他们想必已到那儿了。 They ought to be there by now. 2.　他最好不要抽烟了。 He ought to stop smoking.　 多数情况下，ought to可与should互换使用。 Ought to的反意疑问句用shouldn’t替代。 比较had better, should ought to 三者均表示建议，意为“应该”，“应当”或“最好做…”. 三者的语气程度为渐强。 Had better指一般性的建议，最弱。 Shouldought to含义相近，常可互换。区别在于，ought to常指特殊情况下的“应当”。Should则指一般情况。见下页例句。 You ought to help him because he is in trouble now.(语气强，有命令意味。) You should have a rest after finishing your sports.（一般性建议） You ought to call the police when you find something wrong in your house. He should take care of the babies tonight. have to have to 表示客观需要去做的事情，意为“必须，不得不。” I have to get the station early to catch the first train. We missed the bus so we had to walk home. We have to overcome all kinds of difficulties. have to （考点） Have to 有多种时态。常见的有：一般将来时， We will have to gather at the school gate at 7 tomorrow. 一般现在时 I have to take more money with me because my gf has so much to buy. 一般过去时 Finally, we had to give up our idea to hold a picnic outside as it rained for a whole afternoon. shall , should ought to dare need must have to 比较must have to must表主观意志，而have to表由于客观因素不得不做完成的事情。 Must没有过去式，除在间接引语中可表示过去的时间。在直接引语中表示过去的时间用had to代替。 I told her that she must give up smoking. She said, “We had to get everything ready that night.” Could I borrow your dictionary?(委婉) ---- Yes，you can/may. Sure. Go ahead. Please yourself. May I take this seat?(第一人称疑问句) Yes, you may. No, you mustn’t. 4. You ________ such a long composition. The teacher only asked for 300 words. You have written 600. A. mustn’t have written B. couldn’t have written C. needn’t have written D. do not have to write C 5. There is someone knocking at the door. ??????? it be Tom?? A. can? B. must? C. should? D. ought to 6. Two years ago, my husband bought me a bicycl