1、He cannt speak Chinese.一般疑问句将be动词或情态动词放在句首如:Can you speak Chinese?4.在一般现在时中,句中没有be动词或情态动词时:主语为第三人称单数的否定句在动词前加does+not (doesnt)一般疑问句在句首加does,句子中原有动词用原形;主语为非第三人称单数,否定句用do+not (dont),一般疑问句在句首加do,句子中动词用原形。动词+s的变化规则1.一般情况下,直接加-s,如:cook-cooks, milk-milks2 .以s. x. sh. ch. o结尾,加-es,如:guess-guesses, wash-was
2、hes, watch-watches, go-goes 3.以“辅音字母+y”结尾,变y为i, 再加-es,如:study-studies(二)现在进行时1、肯定句基本结构为be+ do ing.否定句:be not doing.一般疑问句把be动词调到句首2、动词加ing的变化规则1.一般情况下,直接加ing,如:cook-cooking2.以不发音的e结尾,去e加ing,如:make-making, taste-tasting3.如果末尾是一个元音字母和一个辅音字母,双写末尾的辅音字母,再加ing,如:run-running, stop-stopping(三) 一般将来时be going
3、to1.be going to 表示将要发生的事或打算、计划、决定要做的事情。2.肯定句:be going to +动词原形,如:Jim is going to play football.be not going to +动词原形,如:Jim is not going to play football.一般疑问句:把be动词调到句首,如:Is Jim going to play football?特殊疑问句:疑问词+be+主语+going to+动词原形?如:What is Jim going to do?疑问词当主语时:疑问词+be+going to+动词原形?Who is going t
4、o play football?(四)一般过去时1.一般过去时表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作感谢。2.句中没有be动词的一般过去时的句子didnt +动词原形,如:Jim didnt go home yesterday.在句首加did,句子中的动词过去式变回原形。Did Jim go home yesterday?疑问词+did+主语+动词原形?What did Jim do yesterday?疑问词当主语时:疑问词+动词过去式?Who went to home yesterday?3、动词过去式变化规则:1.一般
5、在动词末尾加-ed,如:pull-pulled, cook-cooked2.结尾是e加d,如:taste-tasted3.末尾只有一个元音字母和一个辅音字母的重读闭音节,应双写末尾的辅音字母,再加-ed,如:stop-stopped4.以“辅音字母+y”结尾的,变y为i,再加-ed,如:study-studied5.不规则动词过去式:am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flew, ride-rode, speak-spoke, sweep-swept, swim-swam, sit-sat
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