早教吧作业答案频道 -->英语-->
use sth to do,would like to do,need to do,it is time for sb.中的主语第三人称时,动词要加s吗?假如是He开头,例如He use computer to_____(look)things.这句话中look要加s吗?因为前面有第三人称单数,但又有to这个词,那
题目详情
use sth to do,would like to do,need to do,it is time for sb.中的主语第三人称时,动词要加s吗?
假如是He开头,例如He use computer to_____(look)things.这句话中look要加s吗?因为前面有第三人称单数,但又有to这个词,那么到底look要加s吗?还有,是不是所有+to do类型的句子无论前面是不是三单,句子中的动词都是原型,不要加s?
假如是He开头,例如He use computer to_____(look)things.这句话中look要加s吗?因为前面有第三人称单数,但又有to这个词,那么到底look要加s吗?还有,是不是所有+to do类型的句子无论前面是不是三单,句子中的动词都是原型,不要加s?
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答案和解析
to do是动词不定式,一种非谓语形式,在初三学习会有详细的教学
谓语动词随人称的变化而变化,如果主语是第三人称,则谓语要用第三人称单数形式
这里指的谓语动词是主语执行的某个动作或承受的某个动作,例如
He uses computer to get some information(to在此时是不定式符号,后面的动词要用动词原形)
谓语动词随人称的变化而变化,如果主语是第三人称,则谓语要用第三人称单数形式
这里指的谓语动词是主语执行的某个动作或承受的某个动作,例如
He uses computer to get some information(to在此时是不定式符号,后面的动词要用动词原形)
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