图片[1]-动词不定式的作用-小e英语课堂-英语翻译_ 英语语法基础知识大全_英语手抄报_英语作文

Flashcard letter s is for semicolon illustration

动词不定式的作用:

句子成分 用法 例句
作主语 谓语动词用单数形式,为避免"头重脚轻"常用it作形式主语。常用句型有:

①It is +adj.+for/of sb.+(not)to do sth.意为"做某事对某人来说是……"。

②It takes sb.+some time+to do sth.意为"做某事花费某人多长时间"

To master a language is not easy=It is not easy to master a language.学好一门语言是不容易的。
作宾语 常接动词不定式作宾语的动词有:would like, want, like,hope, wish, plan,decide,learn, agree, try, remember,    forget, expect, refuse,afford, prefer, continue, promise, begin, start 等think,find,believe等动词可用于"动词+it+adj.+to do sth."句型中。it作形式宾语,而真正的宾语是后面的不定式。 I would like to make friends with you.我想要和你交朋友。

I find it difficult to pass my math exam.我发现要通过数学考试很难。

作定语 动词不定式放在名词、代词后作定语,两者之间常有逻辑上的动宾关系,因此,如果不定式中的动词是不及物动词,后面应该加上相应的介词。常接不定式作定语的名词有:time, need, way, chance, opportunity, courage, reason, effort, determination, decision ,ability, ambition Can you give me  a pen to write with?能给我一只用于书写的笔吗?

Do you have something to say?你有什么要说的吗?

作状语 不定式常可用作状语,修饰动词,表示行为的目的、结果和原因。 To do a good job,we must have the right tools. 要干好活工具要对头。
作表语 放在系动词后作表语。 My dream is to be an engineer.我想成为一名工程师。
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