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ID:52532176
大小:1.52 MB
页数:47页
时间:2020-04-09
《高中英语语法情态动词公开.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit2GrammarandUsageModalverbsJack—Ihavegoodnewsforyou!Rose—What?Jack—Theeducationaldepartmenthascarriedoutrulestoreducestudents'toomuchstudyload.Rose—Really?Ifso,Idon’thavetostayuplatetodosomuchhomeworkandmymommayallowmetoplaycomputergames.Jack—ThebestthingIthinkisthatIcanhave
2、moresparetimetotakeexerciseafterclass.Rose—Sure.Bytheway,whoisyourfavoritesportsstar?Jack—LiuXiang,Ishouldsay.Rose—Tellmesomethingabouthim.Jack—Well,maybeIcanshowyousomephotos.一.Weusemodalverbstotalkabout:1.Ability(能力)2.Obligation(义务)3.Certainty(可能性)4.Permission(允许)二.Wealsousem
3、odalverbsto:5.Makerequests(提出请求)6.Makesuggestions(提出建议)7.Makeoffers(提供帮助)8.Giveadvice(提出意见)1.Ability(能力):LiuXiangcanrunthe110mhurdleracewithin13seconds.can/could:1.can一般表示与生俱来的能力或者一种客观可能性,还可以表示请求和允许。LearningEnglish_____bedifficult.canMancannotlivewithoutair._______Iuseyourbike?
4、Cancan/could:2.在疑问句中,用could可表示请求,语气较委婉。—____Ihavethetelevisionon?—Yes,you_____./No,you_____CouldHeasksifhe____smokehere.couldcan/maycan’t/I’mafraidnotcan/could:3.表示惊异、怀疑、不相信的态度。(主要用在否定句、疑问句或惊叹句中)He’ssuchanicepersonthathe______committhecrime!can’t你怎么会如此地粗心!Howcanyoubesocareless!
5、Canthisbetrue?can/could:4.cannever/can’t……too表示“无论怎样…也不过分”,“越…越好”。你过马路的时候再小心也不为过。Youcan’tbetoocarefulwhilecrossingtheroad.Attention:can/beableto区别:Edisonalwayswonderedwhyhenscouldhatch(孵)chickenswhilehewasnotableto.Question:Arethetwomodalverbsinterchangeable(互换)?Ifnot,why?can表示
6、与生俱来的能力或一种客观可能,而beableto更加强调通过后天的学习和努力获得的能力,或者在某个客观的场合和背景下,能做到的事情。Attention:can/beableto区别:AbigfirebrokeoutinABChotelyesterday.Luckily,everyone__________runoutofthebuilding.wasableto2.She_____speakbothEnglishandFrench.canI’msotired!Ihavetodothetrainingforatleast10hoursaday!2.Ob
7、ligation(义务):…yethemustworkhardtowinthegoldmedal.AlthoughLiuXiangissogiftedinhurdlerace…Attention:advisabilitynecessityoughtto/shouldhavetomustYourmotherbringsyouupandtakesgoodcareofyou,sowhensheisold,you___lookafterherinreturn.A.canB.mayC.havetoD.mustShiDongpengmightwinamedala
8、ttheOlympicGames.Althoughthechanceofwinningamedalissma
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