人教新课标英语必修3-Unit-2-Health课件

Healthy eatingUnit 2Grammar Healthy eatingUnit 2Grammar To learn the use of modal verbs To learn the use of modal verb语法讲解建议采用归纳法，如语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，尽可能多的呈现一些相关例句，或可让学生从已学课文中找相或可让学生从已学课文中找相应例句，引导学生试着从所观应例句，引导学生试着从所观察到的语言现象中总结出语言察到的语言现象中总结出语言规则和语法规律。规则和语法规律。语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让Underline the sentences containing modal verbs in the reading passage and use the function words below to explain the meaning of the modal verbs.Intention Duty Permission Possibility Guessing AbilitypossibilitypossibilitypossibilityguessingintentionUnderline the sentences contaiintentionabilitydutyintentiondutypossibilitypossibilityabilityModal verbs are used to express the speakers meaning of intention,duty,permission,guessing,ability,etc.intentionabilitydutyintentiondLook at the following sentences.1.I can well remember that there was a time when a deep blue sky (必修必修1)2.May I ask you some questions about the modern Olympics?(必修必修2)3.On the football team Im a striker so I have to be able to run very fast.(必修必修2)Have a lookLook at the following sentence1.I _ well remember that there was a time when a deep blue sky 2._ I ask you some questions about the modern Olympics?3.On the football team Im a striker so I _ be able to run very fast.4.Then by lunchtime they _ all be sold.5.By now his restaurant _ be full of people.canMayhave towouldought togo Ready?1.I _ well remember that t6.What _ have happened?7.Nothing _ be better,8.Something terrible _ have happened if 9.He _ not believe his eyes.10.Perhaps he _ go to the library and find out.couldcouldmustcouldshould6.What _ have happened?c以上我们已经通过归纳总结和练习以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重情况进一步选择讲解该语法项的重难点。难点。以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解1.ought to意为意为“应当；应该应当；应该”，意思接近于，意思接近于should，但，但ought to语气更强语气更强。You are his brother so you ought to take care of him.2.表示表示建议或劝告建议或劝告。We ought to make a careful plan before we start the work.3.表示表示推测推测。Henry ought to be there by now.He left home at six.一、一、ought to/ought not to情态动词情态动词1.ought to意为意为“应当；应该应当；应该”，意思接近，意思接近【拓展拓展】ought to have done对已发生的情况表示对已发生的情况表示“责责备或不满备或不满”，表示，表示“本应该做某事本应该做某事”。You ought to have told him not to go alone.否定式为否定式为oughtnt to或或ought not to。His doctor said to him that he oughtnt tosmoke so much.疑问式是将疑问式是将ought提前。提前。Ought I to hand in the homework today?反意疑问句的疑问部分用反意疑问句的疑问部分用should或或ought均可均可。We ought to go by plane,shouldnt/oughtnt we?【拓展】【拓展】have to表示表示“不得不；必须不得不；必须”，有人称、，有人称、数和时态的变化。在口语中可用数和时态的变化。在口语中可用have got to代替代替have to。Its dark now.I have to go home.否定形式是否定形式是dont have to，相当于相当于neednt。You dont have to go if you dont want to.疑问式为疑问式为Do/Does/Did+主语主语+have to?Do you have to wear uniforms at school?二、二、have to/dont have tohave to表示表示“不得不；必须不得不；必须”，有人称、数和时态的变化。，有人称、数和时态的变化。【拓展拓展】must与与have to的区别的区别两者都表示两者都表示“必须必须”，但，但must常表示说常表示说话人的话人的主观看法主观看法，而，而have to一般强调一般强调客客观需要观需要。have to有有人称、数和时态的变人称、数和时态的变化化，而，而must 则没有。则没有。You must take good care of her.I have lost my pen,so I have to buy one.【拓展】【拓展】mustnt表示表示“禁止；不准禁止；不准”；neednt表表示示“不必；不需要不必；不需要”。You mustnt tell him about it.Its a secret.You neednt tell him about it.He has known it.【拓展拓展】用用must提问时的提问时的否定回答否定回答用用neednt或或dont have to。Must I finish my homework now?No,you neednt/dont have to.三、三、mustnt/needntmustnt表示表示“禁止；不准禁止；不准”；neednt表示表示“不必；不必；Choose suitable modal verbs from below to complete the following dialogues.ought/oughtnt to should/shouldnt mustnt neednt (dont)have to will can/cant have to should shouldnt neednt dont have to/neednt/shouldnt willP13 2PracticeChoose suitable modal ought/oughtnt to should/shouldnt mustnt neednt (dont)have to will can/cant have to mustnt ought to should ought/oughtnt to shoul根据汉语提示，完成下列英语句子。根据汉语提示，完成下列英语句子。1.那个粗心的人因超速收到了一张罚单，他那个粗心的人因超速收到了一张罚单，他本不应该开那么快。本不应该开那么快。The careless man received a ticket for speeding,he _ so fast.2.他们应该明天来，是吗？他们应该明天来，是吗？They ought to come tomorrow,_?3.我必须要参加这次会议吗？我必须要参加这次会议吗？你不必。你可以让汤姆替你去。你不必。你可以让汤姆替你去。Must I attend the meeting?No,you _.You can ask Tom to go instead.oughtnt to have drivenoughtnt they/shouldnt theyneednt/dont have to根据汉语提示，完成下列英语句子。根据汉语提示，完成下列英语句子。oughtnt to ha4.不该做的事我们都做了，而该做的事不该做的事我们都做了，而该做的事都没做。都没做。We have done things we _ and havent done things we _.5.我该不该把发生的一切都告诉他？我该不该把发生的一切都告诉他？不行！他会生气的。不行！他会生气的。_ tell him all that has happened?No,you _!He will be angry.ought not to have doneought to have donemustntOught I to4.不该做的事我们都做了，而该做的事都没做。不该做的事我们都做了，而该做的事都没做。ought nReview复习下列情态动词：复习下列情态动词：ought to/ought not to/have to/dont have to/mustnt/needntReview复习下列情态动词：复习下列情态动词：人教新课标英语必修人教新课标英语必修3-Unit-2-Health课件课件.用用ought to,ought not to,have to,dont have to,mustnt,neednt填空。填空。1.You _ go across the road when the traffic light is on red.2.You _ buy a gift,but you can if you want to.3.As students,we _ put more energies into study.4.He _ work overtime in order to finish the task before this Saturday.mustnt/ought not toneednt/dont have toought tohas to.用用ought to,ought not to,ha5.Tom _ have told me your secret,but he meant no harm.6.The sun is shining brightly in a cloudless sky;it _ be a fine day today.7.You dont look well.You _ go to see the doctor.8.A dog ran in front of my mothers car and my mother _ stop very quickly.ought not toought toought tohad to5.Tom _ have tol1.I _(得接受得接受)your suggestion.2.You _(你不能来这儿你不能来这儿)without permission.3.You _ (应当去照顾应当去照顾)your brother.4.I think you _(应当去应当去 看看)the doctor.II.Translate the following sentences.have to acceptmustnt come hereshould take care ofought to go to seeI _(得接受得接受)your I5.The teacher told the students that they _ (不应该在课堂上沉默不语不应该在课堂上沉默不语)all the time.6.You _(就得不到就得不到 我的支持我的支持)if you do such a thing.7.I waited for the train for two hours at the station this morning.Well,you _ (本来没有必要那么早去的本来没有必要那么早去的).8.“You _(你千万不你千万不 要再喝酒了要再喝酒了),”the doctor warned him.mustnt drink any moreought not to/shouldnt keep silent in classshall not get my supportneednt have set off so early5.The teacher told the studenIII.阅读下面的对话，按照句子结构的语阅读下面的对话，按照句子结构的语 法性和上下文连贯的要求，在空格处法性和上下文连贯的要求，在空格处 使用合适的情态动词填空。使用合适的情态动词填空。Do you call that a hat?I said to my wife.You _ be so rude about it,my wife answered as she looked at herself in the mirror.I sat down on one of those modern chairs with holes in it and waited.We had been in the hat shop for half an hour and my wife was still in front of the mirror.needntIII.阅读下面的对话，按照句子结构的语阅读下面的对话，按照句子结构的语Do you cWe _ buy things we dont need,I remarked suddenly.I regretted saying it almost at once.You _ have said that,my wife answered.I _ remind you of that terrible tie you bought yesterday.mustntneedntneedntI find it beautiful,I said.A man _ never have too many ties.And a woman _ have too many hats,she answered.Ten minutes later we walked out of the shop together.My wife was wearing a hat that looked like a lighthouse!cant canWe _ buy things we don Finish the exercises in Learning English.Homework Finish the exercise