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1、动词动词 be动词(动词(am, is,are)情态动词情态动词助动词助动词行为动词行为动词be 动词be动词:am,is,arebe动词的否定形式:的否定形式:am not(没有(没有缩略略形式)形式)are not=arent ,is not=isntbe动词的的过去式:去式:am,is的的过去式去式was;are 的的过去式去式were主主语第一人称第一人称+am主主语第二人称第二人称+are主主语第三人称第三人称单数数+is;复数;复数+are情情态动词情态动词本身有一定的词义,但它必须和实义情态动词本身有一定的词义,但它必须和实义动词原形一起构成句子谓语。情态动词有:动词原形一起构成
2、句子谓语。情态动词有:cancan,mustmust,couldcould,wouldwould,maymay,shallshall,shouldshould其否定形式为:其否定形式为:cannot=cancannot=can t t,must must not=mustnnot=mustn t t,could not=couldncould not=couldn t t ;would would not=wouldnnot=wouldn t t ;may notmay not(无缩写形式),(无缩写形式),should not=shouldnshould not=shouldn t t注意,
3、情态动词后应用动词原形。注意,情态动词后应用动词原形。助动词助动词dodo,doesdoes用于一般现在时,其过去式用于一般现在时,其过去式diddid用于一般用于一般过去时。它们通常用在疑问句、否定句中。它们过去时。它们通常用在疑问句、否定句中。它们的否定形式分别为:的否定形式分别为:do not=dondo not=don t t,does does not=doesnnot=doesn t t ;did not=didndid not=didn t t注意:注意:(1 1)在一般现在时中,)在一般现在时中,doesdoes用于第三人称单数,用于第三人称单数,其余一律用助动词其余一律用助动
4、词dodo。(2 2)助动词)助动词dodo,doesdoes,diddid后用动词原形。后用动词原形。行为动词行为动词行行为动词又称又称实义动词,表示,表示动作和状作和状态,能独立作能独立作谓语。目前,我目前,我们学学过的的动词形式有:形式有:动词原形原形、动词的的现在分在分词、动词的的过去式去式三种。三种。用适当的用适当的助动词助动词填空填空1 1、 you like this magazineyou like this magazine?2 2、-What-What sheshe at the weekendsat the weekends? -She usually plays gam
5、es with her friends.-She usually plays games with her friends.3 3、WhatWhat you do last Sundayyou do last Sunday? -I wrote to my -I wrote to my friend.friend.4 4、-Did you see a film called -Did you see a film called The Green HornetThe Green Hornet ?-No-No,I I . .5 5、 Jim have a party every SundayJim
6、 have a party every Sunday?DodoesdodiddidntDoes用用be动词动词的适当形式填空的适当形式填空1 1、YouYou my good friend.my good friend.2 2、Jim and IJim and I in the same team.in the same team.3 3、WhereWhere his footballhis football?4 4、I I a student one year agoa student one year ago,but now but now I I a teacher.a teacher.areareiswasam同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全