英语助动词do的用法.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Do,的三种形式,原形,(do),一般现在时第三人称单数,(,does),过去式,(did),（这里只需对此有基本了解即可）,do,的基本用法,1,-,构成否定句,-,构成一般疑问句及回答,-,构成特殊疑问句,1.Do,的基本用法,2,肯定式：,do,否定式：,do not,缩略否定式：,dont,用法：,do,用在第一人称单复数、第二人称单复数和第三人,称复数做主语，且时态为一般现在时的句子中。,Do,的原形,3,For example(e.g.),I like swimming.,否定句？,一般疑问句及回答？,特殊疑问句呢？,4,否定句：,I,dont,like swimming.,一般疑问句及回答,:,Do you,like swimming?,Yes,I do./No,I dont.,特殊疑问句：,What,do,you like,?,I like swimming,.,The answer,5,肯定式：,does,否定式：,does not,缩略否定式：,doesnt,2.,现在时第三人称单数,用法：,does,用在第三人称单数做主语，且时态为一,般现在时的句子中。,注意：当,does,出现时，句子中用动词原形。,6,For example,She,likes that red car.,否定句？,一般疑问句及回答？,特殊疑问句呢？,7,否定句：,She,doesnt,like that red car.,一般疑问句及回答,:,Does,she,like,that red car,?,Yes,she does./No,she doesnt.,特殊疑问句,:,Which car,does,she,like?,The answer,8,肯定式：,did,否定式：,did not,缩略否定式：,didnt,3.Do,的过去式,（基本了解即可）,用法：,did,用在时态为一般过去时的句子中,用于,所有人称。,注意：当,did,出现时，句子中用动词原形。,9,Do,是助动词吗？,e.g.I do my homework.,一般疑问句,?,肯定回答？,否定回答？,否定句？,10,Do,是助动词吗？,e.g.1:I do my homework.,一般疑问句：,Do you do your homework?,肯定回答：,Yes,I do.,否定回答：,No,I dont,否定句：,I dont do my homework.,11,Do,是助动词吗？,e.g.2:,What,does,your mother,do,?(,特殊疑问句）,回答：,My mother is a teacher.,Does,和,do,是什么,?,12,1.,What color()you like best?,A.do B.does C.are,2.,she like cat?,A.do B.does C.is,3.Does she()apples,or,pears?,A.likes B.like C.liked,4.Do you like red?,().,A.Yes,I dont.B.Yes,I do.,C.No,I do.D.No,I doesnt.,ANSWERS:,EXERCISES,13,5.Do you go to school by bus?,肯定回答：,(),否定回答：,(,),6.He likes his father very much.,一般疑问句：？,肯定回答：,(),否定回答：,(),否定句：？,EXERCISES,14,