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分析这个句子:it isn't easy being the new kid at school

来源:学生作业帮 编辑:灵鹊做题网作业帮 分类:英语作业 时间:2024/06/16 01:56:16
分析这个句子:it isn't easy being the new kid at school
it isn't easy 是形式主语,being the new kid at school是真正主语.动名词形式和to do形式,都可以用it引导的形式主语吗,二者有没有什么区别?
分析这个句子:it isn't easy being the new kid at school
首先 it 作形式主语,主要分为下列三种情况:不定式作主语、动名词作主语 和 名词从句作主语.
具体区别:
一、不定式作真正主语
主要用于句型:
1.It + is/was + adj./n.(形容词或名词) +to do sth.
如:It is a good idea to think this way.这样考虑问题是个好办法.
2.形容词或形容词短语作表语.
如:It was foolish of you to leave school.你中途退学,真是傻瓜.
It is necessary to use a short-wave radio to pick up the programmes.必须用短波收音机才能收到节目.
3.It + v.+ to do sth.
如:It took us three years to complete the project.我们花费三年时间才完成了这项工程.
二、动名词做主语
用于这种形式的是一些特定的形容词和名词.
注意:它与不定式作真正主语的区别在于,动名词说到的动作已经发生.
如:It is nice to meet you.(刚刚见面时用) It is nice meeting you 【分手时用】
主要句型:
  1)下列形容词后常用动名词作真正主语:nice,good,useless,hard,foolish,enjoyable,worthwhile等.
如:
It is nice talking to you.跟你交谈真是愉快.
2)下列名词或名词短语作表语时常用动名词作真正主语:use,good,fun,a waste of,job,task等.
如:
  It's a waste of time doing this.这样做是浪费时间的.
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