内容正文:
时态
一般现在时:
1. 谓语结构:主语+be +其他 (be:am/is/are,选哪个跟主语的人称有关)
主语+实义动词 +其它(主语三单,动词要变化,主语非三单,动词用原形。)
2. 时间标志词:often,usuall,sometimes,always,every...,on Sundays...
3. 动词三单形式变化规则
(1)一般情况下直接加s 如:play-plays, buy-buys
(2)以s x ch sh o结尾的加es 如:teach-teaches、wash-washes、go-goes、do-does
(3)以辅音字母加y结尾的,变y为i加es 如:study-studies、fly-flies、try-tries
(4)特殊变化:have-has
写出下列动词的三单形式,
1
学科网(北京)股份有限公司
read
dance
swim
like
play
study
run
have
teach
fly
make
take
fix
wash__________
go
4. 句型转换
be动词(am, is, are),情态动词(can,should,may, must...),实意动词(like, hurt, put, pick ....)
1).否定句:第一步,判断句子里面有没有be 动词,就是 am,is,are. 或者情态动词can
第二步,没有be 动词,要找助动词,主语是三单,要找does,其他找do,加上not,变成don’t或 doesn’t
第三步,助动词后面,动词还原为动词原形。
注意点;some 要变 any. 助动词后动词要还原
例:Billy’s grandparent has a picnic at the weekend .(改为否定句)
Billy’s grandparent __________ __________ a picnic at the weekend .
例:He likes playing football with his friends at weekends.(改为否定句)
He ___________ ___________ ______________ football with his friends at weekends.
2).一般疑问句:第一步,判断句子里面有没有be 动词或情态动词 ,有的话直接提到句首
第二步,没有be 动词或情态动词 的话,找助动词来帮忙,主语三单找does,其他找do, 然后把助动词移到句首
第三步,助动词后接主语,第一人称变第二人称,之后动词变成原形
第四步,加上问号,别忘记了。
注意,some 变any , I /we 变成you 助动词后动词要还原。
例:He usually goes swimming and skating on Sunday .(改为一般疑问句)
_________ he usually __________ swimming and skating on Sundays?
例:Bobby and his friends go to school by bus every day. (改为一般疑问句并作否定回答)
--- ________ Bobby and his friends __________ to school by bus every day ?
---No, they __________ .
3).改特殊疑问句(即对划线部分提问)特殊疑问句的构成:特殊疑问词+一般疑问句
注意:
1. 当划线部分为在句首的某人,用who提问时,不遵循上述规律,who后原句有情态动词用情态动词,没有用动词三单
如:She can’t go to the party. .(对划线部分提问)
She helps the girl. .(对划线部分提问)