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1、精选优质文档-倾情为你奉上小学英语语法大全-时态一、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,every day,sometimes,always,at weekends,on Sundays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:I am a student. He is Jims father. They are from Japan.2)当谓语是行为动词时,一般现在时的构成:主语(非第三人称单数)动词原形其他如:I often watch TV at the weekends. Mr
2、 Green and Mrs Green like collecting stamps.主语(第三人称单数)动词的第三人称单数形式其他如:Jim usually visits his grandparents on Sundays. She sometimes goes to the park with her mother. 3、动词三单形式的变化规则: 一般情况下,直接加s 如:read-reads,swim-swims 以s,x,sh,ch,o结尾,加es 如:wash-washes,watch-watches,do-does 以辅音字母y结尾,变y为i,再加es 如:study-stu
3、dies,fly-flies 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They watch TVevery day.They dont watch TVevery day.Do they watch TV every day?Yes, they do. / No, they dont.She watches TVevery day.She doesnt watchTV every day. Does she watch TV every day?Yes, she does. / No, she doesnt.二、现在进行时1、定义:表示现在或现阶段
4、正在进行或发生的动作。句中常有now,look,listen等词。如:I am washing clothes now. Look! Liu Tao is climbing the tree. Listen! Jane is singing in the music room.2、构成:be动词(am/is/are)+ 动词现在分词(V-ing)3、动词现在分词构成: 一般是在动词原形后加ing 如:read-reading,drink-drinking,eat-eating,look-looking 以不发音的e结尾的动词,去掉e,再加ing 如:write-writing,make-mak
5、ing,ride-riding,take-taking 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-putting,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:Asking the wayMy hobby is collecting stamps.He is good at skating. 5
6、、现在进行时的句型转换:肯定句否定句一般疑问句及回答He is running now.He isnt running now. Is he running now?Yes, he is. / No, he isnt. They are making a puppet.They arent making a puppet. Are they making a puppet?Yes, they are. / No, they arent.三、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:a moment ago,just now,yesterday
7、,last week,this morning等。如:My brother often went to school by bike last term.The watch was beside the diary a moment ago.I watched the moon and ate the moon cakes last Mid-Autumn Festival.Jim went to the supermarket yesterday.2、构成:主语动词的过去式其他3、动词过去式的变化规则: 一般在动词原形末尾加ed 如:play-played,listen-listened,lo
8、ok-looked 结尾是e的动词,加d 如:live-lived,like-liked,taste-tasted 辅音字母y结尾的动词,变y为i,再加ed 如:study-studied,carry-carried,cry-cried 末尾只有一个辅音字母的重读闭音节词,双写这个辅音字母,再加ed 如:stop-stopped,plan-planned 不规则变化 如:专心-专注-专业am/is-wasare-werehave/has-haddo-didgo-wentsit-sattell-toldsee-sawget-gotmake-madegive-gaveread-readbuy-bo
9、ughtcome-camedraw-dreweat-atefly-flewmeet-metput-putrun-ransay-saidsing-sangswim-swamtake-took4、一般过去时的句型转换肯定句否定句一般疑问句及回答He watched TV yesterday.He didnt watch TV yesterday. Did he watch TV yesterday?Yes, he did. / No, he didnt.They played games just now.They didnt play games just now. Did they play
10、games just now?Yes, they did. / No, they didnt.第15讲 一般将来时1、定义:表示将要发生的动作或存在的状态,以及打算、计划或准备某事。句中一般含有表示将来的时间状语,如:tomorrow morning,next week,this afternoon等表示将来的时间状语。2、构成: be gong to +动词原形 如:I am going to see a Beijing opera tomorrow.We are going to meet at bus stop at half past ten.Dad and I are going t
11、o see a Beijing opera this afternoon. will +动词原形 如:They will go swimming this afternoon.3、be going to 和will 区别: be going to表示经过事先安排、打算或决定要做的事情,基本上一定会发生;will则表示有可能去做,但不一定发生,也常表示说话人的临时决定。如:I am going to take part in a party this evening.They are cleaning the library now. Ill go and join them.be going
12、to表示近期或眼下就要发生的事情;will表示的将来时间则较远一些。如:He is going to write a letter tomorrow. I will meet her one day. be going to还可以用来表示有迹象表明某件事将要发生,常用于天气等自然现象。如:Look! Its going to rain.4、一般将来时句型转换:肯定句否定句一般疑问句及回答She is going to have a picnic tomorrow.She isnt going to have a picnic tomorrow.Is she going to have a picnic t
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