Never be afraid of grammar
Collect some examples;
Watch them very carefully;
Find out something in common;
Try to use the rules ---- practise.
阿嫂传奇1. 指事物
作为人称代词,it 可以除人以外的一切事物或动物;如：
智慧交通建设I dropped my watch and it broke. 我把手表掉在地上摔坏了;
It’s hard work, but I enjoy it. 工作很辛苦,可是我乐意干;
“Where is the dog”第十一届全国人民代表大会第四次会议 “It’s in the bedroom. ” “狗在哪”“在卧室里”;
2. 指人
it 指人主要用于指不性别不明的婴儿或用于确认某人的身份;如： Is it a boy or a girl 是男孩还是女孩
曲靖地震There is a knock on the door. It must be the postman. 有人在敲门,一定是邮递员;
说明在答语中,常用来指本人,如说 It’s me;
3. 代替某些代词
代词 it 还可用于代替指示代词this, that 以及复合不定代词 something, anything, nothing等;如：
“What’s this” “It’s a new machine. ” “这是什么”“是一种新机器”;
Nothing is wrong, is it 没出什么问题,是吗
二、it 作非人称代词的用法
1. 基本用法
it 作非人称代词的用法,主要用于指时间、距离、价值、天
气、气候及温度等自然现象;如：
It’s too late to go there now. 现在去那儿已经太迟了;
It rained all day yesterday. 昨天下了一天的雨;
It can get very hot here. 这里有时会很热;sdi
2. 用于某些句型
It’s time for sth. 该做某事了;
It’除尘灰s time to do sth. 该做某事的时候了;
It’s time for sb to do sth. 某人该干某事了;
It’s about / high time + that-从句. 某人该做某事了;从句谓语用过去式,有时也用“should+动词原形”
It’s first second time + that-从句. 某人第几次干某事;从句谓语用现在完成时
It’s + 时间段 + since-从句. 自从……有一段时间了;
It’s + 时间段 + before-从句. 过多长的时间才……
1. 基本用法
当不定式、动名词、从句等复杂成分用作句子主语时,为保持句子平衡,通常把真正的主语放在句末,而在句首使用形式主语it;如：
It’s very important to remember this. 记住这一点很重要;
It’s hard work climbing mountains. 爬山是费劲的事;
It’s unknown when he will come. 他什么时候来还不知道;
2. 用作形式主语的的重要句型
1 It + be + adj. for of sb to do sth 某人做某事……
It is hard for him to make up his mind. 他很难下定决心;
It was foolish of her to say such a thing. 她说那样的话,真是太蠢了;
说明
2 It takes sb + 时间段 + to do sth. 某人做某事花了……时间
It takes years to master a new language. 要花多年的时间才能掌握一门新的语言;
说明此句型可以有以下多变种变体：It took me an hour to write the letter. =The letter took me an hour to write. =I took an hour to write the letter. 我写这封信花了一个小时;
3 It is up to sb to do sth. 该由某人做某事
It’s up to you to to make the choice. 得由你来作选择;
4 it look seem, appear, happen, occur that as if… 似乎……
It seemed as though he didn’t recognize me. 他似乎没认出我来;
It happened that I was out when he called. 他打电话时我碰巧不在家;
5 If it were not for… / If it hadn’t been for… 若不是因为……
If it were not for their help, we couldn’t have got over the difficulties. 要不是他们帮助,这些困难我们不克服不了的;
1. 基本用法
当不定式、动名词、从句等复杂成分用作宾语且其后跟有宾语补足语时,通常会在宾语补足语前使用形式宾语,而将真正的宾语移至句末;其基本结构为“动词+it+宾语补足语+不定式动名词或从句”;如：
I find it difficult to do the job well. 我发现做好这件事不容易;
I think it best that you should stay here. 我认为你最好住这儿;
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