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时间:2019-02-23
《上海牛津小学英语语法知识总结》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、童趣学习网收集整理www.91tongqu.com上海牛津小学英语语法知识总结一般现在时1、定义:表示经常发生或习惯性的动作、状态。句中通常有usually,often,everyday,sometimes,always,atweekends,onSundays等表示经常性时间的短语。2、构成:1)当谓语是be动词时,一般现在时的构成:主语+be动词+其他如:Iamastudent.HeisJim’sfather.TheyarefromJapan.2)当谓语是行为动词时,一般现在时的构成:①主语(非第三
2、人称单数)+动词原形+其他如:IoftenwatchTVattheweekends.MrGreenandMrsGreenlikecollectingstamps.②主语(第三人称单数)+动词的第三人称单数形式+其他如:JimusuallyvisitshisgrandparentsonSundays.Shesometimesgoestotheparkwithhermother.3、动词三单形式的变化规则:①一般情况下,直接加s如:read-reads,swim-swims②以s,x,sh,ch,o结尾,加
3、es如:wash-washes,watch-watches,do-does③以辅音字母+y结尾,变y为i,再加es如:study-studies,fly-flies④不规则变化如:have-has4、一般现在时的句型转换:肯定句否定句一般疑问句及回答TheywatchTVeveryday.Theydon’twatchTVeveryday.—DotheywatchTVeveryday?—Yes,theydo./No,theydon’t.ShewatchesTVeveryday.Shedoesn’twatc
4、hTVeveryday.—DoesshewatchTVeveryday?—Yes,shedoes./No,shedoesn’t.现在进行时1、定义:表示现在或现阶段正在进行或发生的动作。句中常有now,look,listen等词。如:Iamwashingclothesnow.Look!LiuTaoisclimbingthetree.Listen!Janeissinginginthemusicroom.2、构成:be动词(am/is/are)+动词现在分词(V-ing)童趣学习网收集整理www.91ton
5、gqu.com童趣学习网收集整理www.91tongqu.com3、动词现在分词构成:①一般是在动词原形后加ing如:read-reading,drink-drinking,eat-eating,look-looking②以不发音的e结尾的动词,去掉e,再加ing如:write-writing,make-making,ride-riding,take-taking③以重读闭音节结尾,如末尾只有一个辅音字母,要双写这个字母,再加ing如:sit-sitting,swim-swimming,put-putt
6、ing,run-running,stop-stopping,get-getting,begin-beginning,jog-jogging,forget-forgetting4、动名词其实就是动词的现在分词,它既有名词性质(可作主语),又有动词性质(可带宾语)。如:AskingthewayMyhobbyiscollectingstamps.Heisgoodatskating.5、现在进行时的句型转换:肯定句否定句一般疑问句及回答Heisrunningnow.Heisn’trunningnow.—Ishe
7、runningnow?—Yes,heis./No,heisn’t.Theyaremakingapuppet.Theyaren’tmakingapuppet.—Aretheymakingapuppet?—Yes,theyare./No,theyaren’t.一般过去时1、定义:表示过去某个时间里发生的动作或存在的状态。常和表示过去的时间状语连用,如:amomentago,justnow,yesterday,lastweek,thismorning等。如:Mybrotheroftenwenttoschool
8、bybikelastterm.Thewatchwasbesidethediaryamomentago.IwatchedthemoonandatethemooncakeslastMid-AutumnFestival.Jimwenttothesupermarketyesterday.2、构成:主语+动词的过去式+其他3、动词过去式的变化规则:①一般在动词原形末尾加ed如:play-played,listen-listened,look-look
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