Unit1 Using Language 情态动词+词汇+听说（ppt课件）-新外研版（2019）《高中英语》必修第二册.pptx

1、1.Stay healthy 保持健康2.Solution n.（问题、困难等的）解决办法；（练习或竞赛的）解答，答案；She proposed a possible solution to the mystery.她提出了对这个奥秘的一种可能的解答。I do not have a simple solution to the drug problem.我并没有一个简单的解决毒品问题的方法。Solve v.解决，处理；解释，解答I dreamed up a plan to solve both problems at once.我想出了一个可以立刻解决这两个问题的计划。3.Select v.（

2、select）挑选；选拔 n.（select）被挑选者；精萃All teachers are qualified to teach their native language.Additionally,we select our teachers for their engaging personalities.所有教师都具备教授其母语的资格。另外，我们还根据富有魅力的个性来选择我们的教师。4.Addict n.（尤指毒品）上瘾者，瘾君子；对入迷的人v.使上瘾，使沉迷Hes only 24 years old and a drug addict.She had become addicted

3、to golf.Cigarettes are highly addictive.have todare nothad betterneedntbe able toWhile 引导的让步状语从句1.“虽然，但是”虽然你的第一次英国之旅令人兴奋，但是崭新的、不同的习俗也会令你困惑。2.conj.当的时候；与同时；They were grinning and watching while one man laughed and poured beer over the head of another.当一个男人大笑着将啤酒倒在另一个男人头上时，他们正边看边咧着嘴笑。3.而，然而（表示对比）；Most

4、 digital camera owners are male,while women prefer film.大部分数码相机的主人都是男性，而女性偏爱用胶卷。餐桌礼仪例外例外万一，以防万一，以防n.把手；把手；v.处理处理differ v.不同于；意见有分歧different adj.difference n.The story he told police differed from the one he told his mother.他告诉警察的话和告诉他母亲的不同。Different chimp groups differ in their way of communication.

5、不同的黑猩猩群体有不同的交流方式。情态动词(Modals)情态动词本身具有一定的词义，不能独立作谓语，必须和动词原形一起构成谓语。常用的情态动词包括can(could),may(might),shall(should),will(would),dare,need,must,had better,used to,have to,ought to等。本单元主要涉及的情态动词有be able to,dare,have to,had better,need。下面将对这几个情态动词用法进行讲解。1.be able to do sth.有能力做某事可用于大多数时态 was/were able to do

6、sth.过去或当时成功地做了某事 a.I will be able to speak Japanese in another few months.（再过几个月，我就能讲日语了。）b.They were able to escape from the building when the fire broke out.（火灾发生时，他们设法从那栋建筑里逃了出去。）be able to与can can be able to只有只有现在式、过去式现在式、过去式各种形式各种形式表示表示“自身具有自身具有的能的能力力”多指多指“后天努力后天努力所获得的能所获得的能力；力；”“”“将来的能力将来的能力(w

7、ill be able to)”could do sth.=had the ability to do sth.was/were able to do sth.=managed to do sth.二者都表示“能力”，可以互换使用，但也有细微区别：2.dare&need dare 作情态动词时，主要用于否定句、疑问句和条件从句中，一般不用在肯定句中。How dare you say Im unfair?（你怎么敢说我不公平？）need 作情态动词时，用于否定句或疑问句中，在肯定句中一般用must,have to,ought to 或should代替。You neednt come so ear

8、ly.（你不用这么早来。）dare实义动词，有时态、人称和数的变化。在肯定句中，dare to do sth；在否定句和疑问句中，“to”可以省略。a.I dare to swim across this river.（我敢游过河去。）b.He does not dare(to)answer.（他不敢回答。）need 作实义动词，有人称和数的变化；sb.need(s)to do sth.某人需要做某事sth.need(s)doing/to be done 某事/物需要被 a.He needs to earn more to support such a large family.(他需要赚更多

9、的钱来支持这一大家子的生活。)b.This shirt needs washing.=This shirt needs to be washed.(这件衬衫该洗了。)tender adj.温柔的；柔软的；脆弱的；flavour n.特色，特点；调味品，调味香料；a bowl of 一碗through adv.完全地，彻底地；prep.穿过slightly adv.稍微，轻微地incredibly adv.难以置信地 incredible adj.order v.订购sticky adj.黏性的，涂有黏性物质的；（皮肤因热而）黏湿的；（天气）湿热的，闷热的fishy adj.鱼腥味的 Highl

10、y recommended!强烈推荐！shinylargeroundpinktinyfreshtransparentburntbrightcolourfulthickfishystinkyfragrantpungentsmokyspicybittersweetfruitysourhottastyrawsaltytendersoftjuicycoldstickysmoothcreamygreasycrispyhardchewyrubberyfat chemicals amount soft drinks taste harmful Waiter：Are you ready to order?Ja

11、net：Yes.Im trying to eat more healthily，so Ill just have a salad to start.Waiter：Sure.What kind of dressing would you like on that?Janet：Id like to have.Harriet：interruptingNot a good idea，Janet.Salad with dressing always has a lot of sugar and fat，as well as unhealthy chemicals.Janet：Oh dear，maybe

12、I wont have any dressing，then.Waiter：OK.Do you want anything to drink?We have soft drinks，juice，tea and coffee.Janet：The juice must be healthy.It comes from fruit，right?I think Ill have that.Harriet：Dont be so sure!Did you know that a lot of fruit juice only has a small amount of real fruit?It mainl

13、y contains chemicals that taste like fruit.Even 100%fruit juice can have as much sugar as soft drinks.Janet：Uh，maybe Ill just have some water，then.Waiter：Fine.How about dessert?Janet：Do you have fat-free yoghurt?Harriet：interruptingSorry，but theres a big problem with fat-free yoghurt，Janet.Yoghurt t

14、astes very bad without fat.Thats why they add a lot of sugar to make it taste better.And you know sugar can be harmful if you eat too much.Janet：Oh，I see.Thanks for the advice，Harriet.Ill have a salad with no dressing and a glass of water.And I wont have dessert.Waiter：No problem.And，for you，madam?W

15、hat would you like to order?Harriet：Oh，Ill have a double hamburger with French fries and a cola.Janet：What?Harriet：Aha.Just joking.Ill have the same as she ordered.Thanks!A:Good morning,Maden.Can I help you?A:Yes,of course.Did you know that we have the most popular mixed fruit drink in our shop.A:It

16、s totally made from natural products.Its a mix of six different fruits and vegetables.A:No,the ingredients are 100%natural.Well,since there is no added sugar,the drink just keeps the original flavor of the ingredients.A:Well,the drink is rich in fibre and vitamins,so its good for our digestive syste

17、m.A:Its 15 yuan per bottle.Customers can get 20%off the total price if they buy five bottles or more at a time.A:Here you are.Thank you.See you next time.B:Id like to buy something to drink.Do you have anything to recommend?B:Oh,really?I havent heard of that.Whats the drink made from?B:Does it have any additives like sugar in it and what does it taste like?B:Then what are the benefits from drinking it?B:How much is it?B:OK,then Ill take five bottles.