倒装句中有时用do,did,does,有时用have,has,had,什么时候用助动词,什么时候用系动词?People seldom did experiments to test their ideas in those days.改倒装句Seldom did people do experiments to test their ideas in those days这
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倒装句中有时用do,did,does,有时用have,has,had,什么时候用助动词,什么时候用系动词?People seldom did experiments to test their ideas in those days.改倒装句Seldom did people do experiments to test their ideas in those days这
倒装句中有时用do,did,does,有时用have,has,had,什么时候用助动词,什么时候用系动词?
People seldom did experiments to test their ideas in those days.改倒装句
Seldom did people do experiments to test their ideas in those days这里的考点,有没有类似的题目
倒装句中有时用do,did,does,有时用have,has,had,什么时候用助动词,什么时候用系动词?People seldom did experiments to test their ideas in those days.改倒装句Seldom did people do experiments to test their ideas in those days这
英语动词分为及物动词,不及物动词,连系动词,反身动词,实义动词,助动词,限定动词,非限定动词和短语动词.
1.及物动词和不及物动词:动词根据它在句中是否跟宾
语,可分为及物和不及物,但是有的动词既可以做
及物也可做不及物,比如fly
Boys fly kites(及物)
Birds fly(及物)
2.连系动词:连系动词表示不完全谓语关系的动词,
它仅说明真正的谓语(既表语)在其后.
比如:
I am very hungry and tired(表语是形容词)
He was a painter,a very bad one(表语是名词)
常见的连系动词有become,appear,get look,
remain,seem 等等.
3.助动词分为时态助动词和情态助动词.
助动词本身无实际意义或者意义不完全,不能单独
做谓语.时态助动词有:do,be,have ,shall
(should),will(would)等等.它们在句中和实义动
词一起构成各种时态,语态,语气以及否定和
疑问结构.比如:
Does he have coffee with his breakfast?
Do not be so careless.
The thief was caught in the parking lot.
4.情态动词有shall,should,will,could would,
may,might,must,dare ,need,ought to 等等,
其用法与助动词相同.比如:
you should have reported the matter to the
police.
I may have met him before.
You needn't come so early.
They dare not tell the truth.
这个其实很简单的,主要看原句的谓语是什么,简单说是这样几类,我自己这样总结你可能比较好记忆吧。
第一,谓语是完成时(不是有have就行的,有时候have不是表示完成时的,是表示“有”的相关意义的,比如have supper这些),那么倒装就用have的某种时态,原句是过去,就用had,是单三人称就用has。
第二,谓语是系表结构,是原句是主系表结构,比如you are beauti...
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这个其实很简单的,主要看原句的谓语是什么,简单说是这样几类,我自己这样总结你可能比较好记忆吧。
第一,谓语是完成时(不是有have就行的,有时候have不是表示完成时的,是表示“有”的相关意义的,比如have supper这些),那么倒装就用have的某种时态,原句是过去,就用had,是单三人称就用has。
第二,谓语是系表结构,是原句是主系表结构,比如you are beautiful这类,那么倒装就是用系(be)动词。
第三,除此之外,像实义动词这些,就如同你举的那个例子,都是do。过去的话用did,单三人称用does。
有什么疑问还可以问我,我一直在线。
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