小学句子的时态
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小学句子的语态
一．一般现在时：
1.表示现阶段经常发生或反复发生的动作或存在的状态。
2.构成：①主语（主格）+be（am is are）动词+……
例：肯定句:I am a girl. 否：I am not a girl.
She is a girl. She is not a girl.
You are clear. You are not clear.
②主语（第三人称单数）+动词三单+……
第三人称单数包括：名词单数（bird dog等）单数代词（it she he）
具体人名（da ming ,Amy等）金钱（5 dollars,1dollar）
例：The bird flies in the sky. She likes playing basketball.
Amy sings very well. 5 dollars is enough.
2.标志性词语：
①Often usually sometimes always twice every month
②时间状语从句中的引导词如：if when after before as soon as
等都遵循主将从现的原则
如：I will go to the park if it does not rain.
3.肯定句变疑问句
原则1：如要变句子中有be动词，那么将其提到句首。
如：肯定句she is a girl. 疑问句Is she a girl?
I am hungry. Are you hungry?
原则2：如句子中存在行为动词作谓语，那么将do does（三单）did(过去时)添加到句首，后面照抄（do does did 后必须跟动词原形）
如：肯定句I have a party. 疑问句Do you have a party?
She likes singing. Does she like singing?
二．现在进行时
1.现在正在进行的动作1.构成：主语+be+doing（现在分词）
如：肯定句she/he/it is playing football
否定句she/he/it is not playing football
.疑问句Is she/he/it playing football?（将be动词提前，其他不变）
主语为I am playing football. 疑问句Are you playing football?
2.标志词
①Now（句首或句尾）listen look at the moment start be quiet
如：He is doing his homework now.
Look!The bird is flying.
②Come go start arrive stay leave等进行时表将来
如：It is time to leave.
--Ok,I am coming. 到了要离开的时间了。--好的，我马上来。
三．一般将来时：从现在来看将要发生的事或动作
1.构成：主语+will/be going to+动词原形+其他
如：She will/is going to do her homework..
否定句：She will not/is not going to do her homework.
疑问句：将will 或be提前
Will she do her homework？Is she going to do her homework?
2.标志词
Tomorrow next day/year/month the day after tomorrow in+一段时间
Tonight……
三．一般过去时：过去经常发生的动作或存在的状态
1.结构①：主语+动词过去式+其他
如：肯定句I played games yesterday.
否定句I did not play games yesterday。（在行为动词前加助动词did not，行为动词用原形）疑问句Did you play games yesterday?（将助动词did加在句首，行为动词变原形）
结构②：主语+be（was were）动词+其他
如:肯定句she was …否定句she/he/it was not…
疑问句将be动词提前
2.标志词：yesterday last+.. …ago in+时间点the day before yesterday
条件状语从句、时间状语从句宾语从句定语从句前为过去时，后也为一般过去时
四．过去进行时：过去某个时间点或某段时间正发生的事
2.构成：主语+was/were+现在分词
如：I was playing with friends，
否定句：be动词后加not
疑问句：把be 动词提前其他不变
3.标志
st night at ..o’clock yesterday at this time yesterday when while
如：We were watching TV at this time yesterday.
It was raining when they left the stasion.