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1、牛津英语8B语法专项练习(七)should,oughtto和hadbetter一、掌握基本用法hadbetter,should,oughtto含义及语气有所不同,请看下表:二、should和oughtto均为提建议型情态动词,可表示“责任”、“义务”,常用来劝告别人去做某事,译为“应该”,还勇于纠正某人的错误。其特点是:和另一个动词共同构成谓语,没有人称和数的变化,后接动词原形可以表示现在、将来或过去将来,由时间状语或上下文决定。例如:Weoughttobemorecarefulwithourhomework.我们应当更加认真地做作业。Yo
2、ushouldfollowMr.Wang’sadvice.你应当听王老师的话。sheshouldbebacktomorrow.它应该明天回来。Ioughttodomyhomeworknow.我应该现在就做作业。What’swrongwithmyanswer?Itshouldbe62,not26.我的答案出了什么错误?它应该是62,不是26。1、陈述句肯定形式:I/You/He/She/We/Theyshoulddiscussit.oughttodiscussit.否定形式:I/You/He/She/We/Theyshouldnot(shou
3、ldn’t)discussit.oughtnot(oughtn’t)todiscussit.2、一般疑问句:ShouldWediscussitnow?Oughtweto简略回答:Yes,weshould/oughtto.No,weshouldn’t/oughtnot(oughtn’t)to.3、反意疑问句:Youshouldstudyhard,shouldn'tyou?你应该认真学习,是吗?Yououghttostudyhard,oughtn'tyou?Heshouldn’tspeakinclass,shouldhe?你上课不应该讲话,是吗
4、?Heoughtn'ttospeakinclass,oughthe?三、should和oughtto+havedone(一)should/oughtto+havedone意为本来应做但实际没有做,表达遗憾的感情色彩。例如:Therewasalotoffunatyesterday'sparty.Yououghttohavecome,butwhydidn'tyou?(二)shouldn’t/oughtn'ttohavedone,意为本来不应做但实际已做,表达遗憾的感情色彩。例如:Iwasreallyanxiousaboutyou.Youshou
5、ldn'thavelefthomewithoutaword.四、should和oughtto+bedoing,表示“应该在(立即)……”例如:Yououghtn’ttobetalkingsomuch.你不应当说这么多话。Theyfelttheyoughttobedoingsomething.他们感到他们应该做点什么事。 五、hadbetter表示"最好"hadbetter作为情态动词,它只有一种形式,它后面要跟动词原形。I/You/He/She/We/Theyhadbettergotobedearly.I/You/He/She/We/The
6、y’dbettergotobedearly.(缩写)1、陈述句肯定形式:hadbetterdosthYouhadbettergothereatonce.你最好立即去那里。否定形式hadbetternotdosthYouhadbetternotstartatthistime.此时你最好别出发。2、一般疑问句:Hadhebetterstartearlyatonce?他最好立即出发吗?Yes,hehad./No,hehadn’t.3、反义疑问句:Youhadbetternotgohome,hadyou?你最好别回家,是吗? Shehadbette
7、rwatertheflowersassoonaspossible,hadn’tshe?她最好尽快给花浇水,不是吗? 情态动词专项练习题一、用should,shouldn’t,ought,oughtn’t填空:1.I’mgettingfat.Itoeattoomuch.2.Maryisnotfeelingwell.Shestayathome.3.Hetobehere,oughtn’the?4.Childrenplayfootballinthestreet.5.Theytolettheirdogsrunontheroad.6.She’salw
8、aysshortofmoney.Shespendtoomuch.7.Mikehasaweakbody,sohetodomoreexercise.8.Hopefulgetslowm