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1、情态动词should的用法(Unit1)should表示“应该;应当”,后跟动词原形,没有人称和数的变化。should常用于提出意见或建议。e.g.Youshouldhaveagoodrestfirst.反身代词(Unit1)反身代词由“人称代词的宾格或形容词性物主代词+-self/-selves”构成,有人称和数的变化,可译为“本人;本身”,为加强语气也常译为“亲自;自己”。反身代词通常用在一些表达中:dressoneself给自己穿衣服enjoyoneself玩得开心helponeselftosth.随便吃点……learnby
2、oneself自学teachoneself自学cutoneself割 / 切着自己takecareofoneself照顾自己hurtoneself伤着自己keep...tooneself保密动词不定式(Unit2)动词不定式是由“to+动词原形”构成的,有时to可以省略,它是非谓语动词的一种。动词不定式在句子中不能单独作谓语,也没有人称和数的变化,其否定结构是“notto+动词原形”。动词不定式在句中的作用1.作主语。动词不定式作主语时,可用形式主语it代替,而把真正的主语——动词不定式后置。如:Todrivesofastisda
3、ngerous.=Itisdangeroustodrivesofast.2.作表语。如:His dream isto bea doctor.3.不定式作宾语常见的后面可以接不定式作宾语的动词有agree,choose,decide,expect,fail,hope,learn,prepare,offer,plan,promise,refuse,want,wish等。4.不定式作宾语补足语常见的后面可以接不定式作宾语补足语的动词有allow,ask,encourage,expect,invite,teach,tell,want,wa
4、rn,wish等。e.g.TheteachertoldustodoExerciseOne.使役动词let,make,have和感动动词see,hear,watch,notice,feel等词后接不带to的不定式作宾语补足语。e.g.Weoftenhearhimsingontheplayground.5.作定语。动词不定式作定语时,要放在所修饰词的后面。如:ThebestwaytolearnEnglishisreadingaloud.6.作状语。 动词不定式作状语时,可表示目的、结果等。如:To geta good seatshe
5、arrivedatthehall early.(表示目的)The boy is old enoughto takecare ofhimself.(表示结果)注意:1.what,which,who,where,when,how等特殊疑问词的不定式连用,在句中起名词的作用,可以作宾语。e.g.Hedoesn’tknowwhattodonext.2.hadbetter,wouldrather,havenothingtodobut...,Whynot...?,Will/Would/Couldyouplease...?后面接不带to的动词不
6、定式。e.g.Youhadbetterdosomeexerciseeveryday.1.—I’mafraidIwon’tpasstheexam.—Comeon,Bill.Youshouldbelievein_______.That’sthesecretofsuccess.A.myself B.ourselvesC.yourself D.yourselves中考链接C2.WheneverMaryreadsaninterestingstory,shecan’tke
7、epitto_______andwantstoshareitwithherfriends.A.she B.her C.hers D.herself3.Lastmonth,Iwenttothecomputermuseumwithmyparents.Weenjoyed______andlearnedalot.A.us B.ourselves C.ourDB4.Whenyouleave,pleaseturnoffthelights_______energy.A.save
8、 B.tosaveC.saving D.saved5.Weadviseparents_______theirchildrenathomealoneinordertokeepthemawayfromda