情態(tài)動(dòng)詞should__ought_to課件

1、Welcome to our classSeptember.29Teaching Objectives1. Learn common features of modal words2.Learn to use modal words: should, ought to3.Learn to practice orally with should,ought toTeaching Contents1. The features of modal words2. Modal words: should, ought to3. Oral practice4. HomeworkThey can do t

2、heir homework.She can play table tennis.He can wash clothes.Mr.cans DiaryThey can do their homework.She can play table tennis.He can wash clothes.Can I do anything ?Of course, I can do something.什么是情態(tài)動(dòng)詞？ 情態(tài)動(dòng)詞是一種本身有一定的詞義，但要與動(dòng)詞原形一起使用，給謂語動(dòng)詞增添情態(tài)色彩，表示說話人對(duì)有關(guān)行為或事物的態(tài)度和看法，認(rèn)為其可能、應(yīng)該或必要等。情態(tài)動(dòng)詞的特征1.不能單獨(dú)做謂語，必須與其他動(dòng)

3、詞一起構(gòu)成謂語2. 沒有人稱和數(shù)的變化3. 情態(tài)動(dòng)詞后一律接動(dòng)詞原形4. 具有助動(dòng)詞功能情態(tài)動(dòng)詞should1.You should help your mother with the housework. （肯定句） 你應(yīng)該幫你母親做家務(wù). 2. You shouldnt lie to your mother.（否定句） 你不應(yīng)該對(duì)你母親說謊。3. Should I wear a coat? （一般疑問句） Yes, you should.是的，你應(yīng)該。 No, you shouldnt.不，你不應(yīng)該。情態(tài)動(dòng)詞ought toWe can use modal words ought to t

4、o say what is best or right to do.1.She ought to finish it by next week. 下星期她應(yīng)該完成了。2. You ought not to do it. 你不應(yīng)該做此事。3. Ought he to start now? 他現(xiàn)在該動(dòng)身了嗎？Yes, he ought (to) . 是的，該動(dòng)身了。No, he ought not (to).不，不該動(dòng)身。should 與ought to 的比較1.表示“應(yīng)該，應(yīng)當(dāng)” 等，兩者可互換，只是ought to的語氣稍重。如： You ought to/should work harde

5、r than that. 你應(yīng)當(dāng)更努力地工作2. should 強(qiáng)調(diào)主觀看法，而 ought to 強(qiáng)調(diào)客觀要求。如： We ought to go and see my mother in hospital tomorrow, but I dont think we will. 我們按理應(yīng)當(dāng)在明天去看看住院的母親的，但我認(rèn)為我們不會(huì)去。PracticeWho do sth.Students guard peoples safety. Policemen ought to look after old people. should Young people work hard.Workers study hard . They should.He ought toWe shouldnt. in some places.Homew