情态动词should, ought to课件

WelcometoourclassLuoYanhuiSeptember.29TeachingObjectives1.Learncommonfeaturesofmodalwords2.Learntousemodalwords:should,oughtto3.Learntopracticeorallywithshould,oughttoTeachingContents1.Thefeaturesofmodalwords2.Modalwords:should,oughtto3.Oralpractice4.HomeworkTheycandotheirhomework.Shecanplaytabletennis.Hecanwashclothes.Mr.can’sDiaryTheycandotheirhomework.Shecanplaytabletennis.Hecanwashclothes.CanIdoanything?Ofcourse,Icandosomething.什么是情态动词？情态动词是一种本身有一定的词义，但要与动词原形一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。情态动词的特征1.不能单独做谓语，必须与其他动词一起构成谓语2.没有人称和数的变化3.情态动词后一律接动词原形4.具有助动词功能情态动词should1.Youshouldhelpyourmotherwiththehousework.（肯定句）你应该帮你母亲做家务.2.Youshouldn’tlietoyourmother.（否定句）你不应该对你母亲说谎。3.—ShouldIwearacoat?（一般疑问句）—Yes,youshould.是的，你应该。—No,youshouldn’t.不，你不应该。情态动词oughttoWecanusemodalwordsoughttotosaywhatisbestorrighttodo.1.Sheoughttofinishitbynextweek.下星期她应该完成了。2.Yououghtnottodoit.你不应该做此事。3.—Oughthetostartnow?他现在该动身了吗？—Yes,heought(to).是的，该动身了。—No,heoughtnot(to).不，不该动身。should与oughtto的比较1.表示“应该，应当”等，两者可互换，只是oughtto的语气稍重。如：Yououghtto/shouldworkharderthanthat.你应当更努力地工作2.should强调主观看法，而oughtto强调客观要求。如：Weoughttogoandseemymotherinhospitaltomorrow,butIdon’tthinkwewill.我们按理应当在明天去看看住院的母亲的，但我认为我们不会去。PracticeWhodosth.Studentsguardpeople’ssafety..Policemenoughttolookafteroldpeople.shouldYoungpeopleworkhard.Workersstudyhard.Theyshould………………….Heoughtto…………Weshouldn’t……….insomeplaces.Homework1.联系生活，用should,oughtto造10个句子，写在作业本上。2.完成教材21页填空部分。Thankyouforlistening!