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1、Period 4 Grammar Modal Verbs Unit 2 Healthy EatingUnit 2 Healthy Eating The first wealth is health 健康是人生第一财富 A light heart lives long 豁达者长寿 Early to bed and early to rise makes a man healthy wealthy and wise 早睡早起会使人健康 富有和聪明 Without health no pleasure can be tasted by man 没有健康就没有乐趣 Good health is ove
2、r wealth 健康是最大的财富 ProverbsProverbs What should shouldn t we do to keep healthy Good health is over wealth Good health is over wealth If you d like to give advice or opinions you can use should ought to had better do What ought we to do to keep healthy Good habits can help us to keep healthy and bad
3、ones can cause diseases There is a serious disease called H1N1 flu these days It spreads easily among people in spring and autumn The flu is a serious disease but we don t have to be afraid of it We can do something to prevent it But how We ought to keep the air fresh all the time We ought to keep a
4、way from crowded places We d better drink more water every day You should go to school right away It s eight o clock now He should be at work It seems so unfair this should happen to me You should have reminded me of the meeting What should we do now sum upsum up 义义 务务 表惊讶 竟然 推推 测测 用于第一人称疑问句 询问对方的意愿
5、 表责备 谴责 What kind of food must we eat to be strong Good health is over wealth Good health is over wealth must have to Must I finish the task right now Yes you must you have to No you needn t you don t have to She called me yesterday evening but I didn t hear it I be asleep must have been 1 Will you
6、stay for lunch Sorry My brother is coming to see me A I mustn t B I can t C I needn t D I won t 2 May I pick a flower in the garden A No you needn t B Not please C No you mustn t D No you won t 3 You return the book now You can keep it till next week if you like A can t B mustn t C needn t D may not
7、 4 John you play with the knife you hurt yourself A won t can t B mustn t may C shouldn t must D can t shouldn t C B B C mustn t needn t shouldn t can t 表示否定的情态动词的用法 不准 禁止 没必要 don t have to 不应该 ought not to 不能 不可能 Could you use them to make sentences What modal verbs have you learned can could may m
8、ight will would shall should had better must have to need ought to dare can could 只能表示现在或过去的能力 be able to 能用于各种时态 相当于manage to do sth succeed in doing sth 1 表示 能力 的情态动词的用法 can could be able to 1 He go to the party yesterday evening in spite of the heavy rain 2 2 Although he swim he cross the river w
9、as able to can twas able to may might can could 2 表示 许可 的情态动词 1 I go out to play mum No you You should do your homework first A Might wouldn t B Can needn t C Can can t D Need mustn t 2 Could I call you by your first name Yes you A will B could C can D might 3 表示 请求 的情态动词的用法 will would shall should
10、均可表示将来 过去时为 should would will would 可表示意愿 常出现的动作 在疑问句中表示请求和建议 must could may might can t 4 表示 推测 可能性 的情态动词 can 表示推测时 只能用在否定句或疑问句中 It s so late Can Tom be reading 这么晚了 汤姆还在看书吗 这个人不可能是玛丽 她生病了 It couldn t be Mary She had fallen ill 情态动词能表示时态吗 1 表示对现在的推测 2 表示对过去的推测 3 表示对将来的推测 表示推测 情态动词的重要用法 肯定的推测 可能的推测
11、否定的推测 疑问的推测 must 对将来 对现在 对过去情态动词 may might can t couldn t can could V V have done 常见must be be doing V V have done be doing 可以用not表示 可能不 V V have done be doing V V have done be doing You look tired You go to bed now should You believe everything you read on the Internet shouldn t can t My mother coo
12、ked a lot of food for me She has been cooking all the morning She must be tired now I have just eaten a lot of food for lunch You can t be hungry now My house is near the railway It be noisy there must The old restaurant be very good It s always full of people The new restaurant be very good It s al
13、ways empty must can t Where is Jane Perhaps she is reading newspapers She read newspaper may be reading In China many children wear uniform when they go to school have to Don t tell anybody what I said You keep it a secret must The floor is clean You sweep it needn t The floor is clean You swept it
14、must have I promised I would be on time I be late couldn t Last night Paul became ill suddenly We call the doctor had to We can t repair the car ourselves We take it to a garage have to I can manage the shopping alone You come with me needn t That is an important book You keep it well must Excuse me
15、 you tell me the way to the railway station please could You are carrying a lot of things You can t open the door yourself There s a man standing near the door You say to him you open the door please Could you like a cup of coffee Would 1 By lunchtime they would all be sold 2 His restaurant ought to
16、 be full of people 3 What could have happened 4 Nothing could have been better 5 Something terrible must have happened 6 I will take all that fat off you in two weeks 7 He could not believe his eyes 8 He wondered if he should go to the library to find out 9 He couldn t have Yong Hui getting away with telling people lies 10 He had better do some research 11 After eating in the restaurant people would become fired very quickly A Intention B Duty C Promise B D Possibility E Guessing D D E A B A B D
