本文目录
which的用法总结及例句
it的用法最常见的是做普通代词，代指前文提到的某种物体或某个事情，比如I bought a table，it代指前面的table。第二个用法是用it或there来代指不确定的东西。第三种用法是it做强调句的形式主语。
扩展资料
例句：
I know it sounds trivial , but I'm worried about it.
我知道这事听起来微不足道，但我还是放心不下。
If it doesn't fit, you can always take it back.
要是它不合适，你总还可以把它退回去嘛。
Does it matter what colour it is?
它是什么颜色重要吗？
Does it really matter who did it?
是谁干的'真的很重要吗？
Did it hurt? Sure it hurt.
疼不疼？当然疼了。
find it doing用法归纳与总结
it用法归纳与总结如下：
1、做形式主语。
It形式主语 V… S真正主语。
It is necessary {to repeat the whole thing}真正的主语.
2、做形式宾语。
S V it形式宾语 O真正宾语。
She made it clear (that) we were not welcome.
3、用于强调句。
It主语 is…that/who…
It’s Spain that he went to, not Portugal.
it的词汇功能：
1、具体指代：
前文已经提及的某物/某事，或者语境中明确的某物/某事，用it指代。
He took a quick look at the house and noticed it was very old.
2、模糊指代：
表示一般情况。
How’s it going?
表示「气候、天气、温度、时间、地点、距离」等。
It is raining.
表示某种素质。
Either you've got it or you haven't.
表示性别未知的人。
He promised to support the child after it was born.
it的6种用法
以下是我为大家整理的it 的用法 总结 ，希望能帮助大家更好地认识it这个单词，提高英语水平。
1. It is + 被强调部分 + that ...
该句型是强调句型。将被强调的部分放在前面， 其它 部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的 句子 。这也是判断强调句型与其它从句的 方法 。
It was about 600 years ago that the first clock with a face and an hour hand was made.
It was they that (who ) cleaned the classroom yesterday.
It was in the street that I met her father.
2. It is clear ( obvious, true, possible, certain....) that .....
该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为"清楚(显然，真的，肯定...)" 是主语从句最常见的一种结构。
It is very clear that he’s round and tall like a tree.
= That he’s round and tall like a tree is very clear.
3. It is important ( necessary, right, strange, natural...) that ...
该句型和上一个同属一个句型。由于主句中的形容词不同，that 后的从句中要用虚拟语气(should + 动词原形)，should 可以省去。建议记住该句型中的形容词。
It is important that we (should) learn English well.
It is necessary that he (should) remember these words.
4. It is not until + 被强调部分 + that ...
该句型也是强调句型。主要用于强凋时间状语，译成汉语"直到...才..."，可以说是 not ... until ... 的强调形式。
It was not until she took off her dark glasses that I realized she was a famous film star.
= Not until she took off her dark glasses did I realize she was a famous film star.
= I didn’t realize she was a famous film star until she took off her dark glasses.
5. It is said (reported, learned....) that ...
该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为"据说(据报道，据悉...)"。
It is said that he has come to Beijing.
It is reported that another earth satellite has been put into orbit.
6. It is suggested ( ordered ... ) that ...
该句型和上一个同属一个句型。主句中的过去分词是表示请求，建议，命令等词时，that 后的从句要用虚拟语气(should + 动词原形)，should 可以省。常译为"据建议;有命令...)
It is suggested that the meeting ( should ) be put off.
It was ordered that we ( should ) arrive there in two hours.
7. It is a pity ( a shame ... ) that ...
该句型中，that后的从句一般用虚拟语气(should + 动词原形)，should可省去.表示出乎意料，常译为"竟然"。没有这种意义时，则不用虚拟语气。
It is a pity that such a thing ( should ) happen in your class.
这种事竟然发生在你们班上，真是遗憾!
It is a pity that he is ill. 他生病了，真遗憾!
8. It is time ( about time ,high time ) that ...
该句型中that 后的从句应该用虚拟语气，值得注意的是① 常用过去时态表示虚拟.② 有时也用should + 动词原形，should 不能省。常译为"是(正是)...的时侯..."。
It is time that children should go to bed.
= It is time that children went to bed.
9. It is the first ( second ... ) time that ...
该句型要和上一个句型区别开来。该句型中的 that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态;如果是一般过去时，后面从句则用过去完成时态。该结构中 that 可以省去;it有时用 this 替换.常译为"是第一(二)...次..."。
It is the first time I have been here.
= This is the first time I have been here.
10. It is .... since ...
该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题。主句中是时间作表语，其时态是现在时或完成时，since 引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。
It is ( has been ) 5 years since his father died.
11. It is ... when ...
该句型中的 when 引导的是一个时间状语从句，主句中的 it 指时间，表语由具体的时间充当。常译为"当...的时候，是..."。
It was 5 o’clock when he came here.
12. It be ... before ...
该句型主句中的 it 指时间, 主句中的时态常是将来一般时或过去时两种时态.主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或 短语 。常译为"...之后..."。
It was 3 days before he went to Beijing.
It will be not long before he finishes his job.
13. It happens (seems, looks, appears ) that...
该句型中it是形式主语，that 引导的是主语从句，主句中的happen , seem等词是不及物动词.
It happened ( so happened ) that he met his teacher in the street. 碰巧..
It seems that he will be back in a few days. 看来...
14. It takes sb. ... to do sth.
该句型中的不定式是真正的主语，it是形式主语，句型中的直接宾语是时间。常译为"做...要花费某人..."。
It took thousands of people many years to build the Great Wall.
15. It is no good (use ) doing sth.
该句型中的真正主语是动名词短语，主句中的表语可以是no good , ( not any good ) , no use , ( not any use )。
It is no good learning English without speaking English.
16. It doesn’t matter whether ( if ) ...
该句型中whether(if) 引导的从句是真正主语，该句型常译为 "不论(是否)...没关系...。
It doesn’t matter if they are old.
17. It is kind ( of sb. ) to do sth.
该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由 of引起，主句中的形容词必须是能表示逻辑主语特征的形容词。常见的有： bad , brave , careless, clever , cruel , foolish , good (好心的), honest , horrible , kind , lazy , modest , naughty , nice(有教养的), polite, rude , silly , stupid , wise , wrong(错误的)等。 这个句型可以改写为：sb. is kind to do sth.
It is kind of you to say so.
= You are kind to say so.
18. It is necessary ( for sb. ) to do sth.
该句型与上一个同属一个句型。如果不定式的逻辑主语是由for引起，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有：① important, necessary, natural ② easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。
在①中的形容词作表语可以用从句改写， 如：
It is important for her to come to the party.
= It is important that she (should ) come to the party
19. It looks ( seems ) as if ...
该句型中it无意义。 as if 引导一个状语从句。常译为，"看起来好象..."如果与事实不相符合，则用虚拟语气.
It looks as if he is ill.(真的病了)
It looks as if he were ill. (没有生病)
It seemed as if he were dying.
20. We think it important to learn a foreign language.
该句型中的it 作形式宾语。为了记忆方便我们可称该句型为"6123结构"。
6指主句中常用的动词：think, believe, make, find, consider, feel;
1指的是形式宾语it;
2指的是宾补的两种形式：形容词或名词;
3指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。
We think it our duty to clean our classroom every day.
He felt it important learning English well.
They found it difficult that they would finish their work in two days.
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it的用法总结：
指代事物。作为人称代词，it 可以指除人以外的一切事物或动物。
指代人。主要用于指婴儿或未知的人。
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等。
扩展资料
一、it作人称代词
1、指代事物。作为人称代词，it 可以指除人以外的一切事物或动物。如：
Sam picked up some knowledge of the computer just by watching others working on it. 山姆只是凭借看别人操作电脑就学到了一些电脑知识。(指the computer) (山东2010)
2、指代人。主要用于指婴儿或未知的人。如：
I was just going to cut my rose bushes but someone had done it. Was it you? 我正要剪切我的玫瑰丛但(发现)有人已经这样做了。是你干的吗？(未知的人) (湖南 2010)
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等。如：
What’s this / that? 这/那是什么？
It’s an orange. 这/那是一个橘子。
二、it作非人称代词
1、it用于指时间、距离、价值、自然现象、环境等。如：
It rained heavily in the south, causing serious flooding in several provinces. 南方下了大雨，在几个省造成了严重洪灾。 (指自然现象) (天津 2010)
2、it指代前面提到过的或谈话双方都明白的事情或情况。
3、it组成的惯用语。
it可以用在一些动词、介词之后，表示特定的'意思，构成固定搭配。如：
take it easy (别紧张，放松点)，make it (做到，成功)，believe it or not (信不信由你)，forgetit (算了吧)，manage it (设法做成某事)，that’s it (这就对了，就这样)，Don’t mention it (不用谢)，It’s up to you (由你决定)。
Your house is always so neat — how do you manage it with three children? 你家里总是那么整洁——有三个孩子，你是怎么做到的?
三、it作形式主语
当不定式、动名词、从句等用作句子主语时，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 no use having ideas only. 只有主意是没用的。
四、it作形式宾语
当不定式、动名词、从句等用作句子的宾语时，通常把它们放在句末，而用it作句子的形式宾语。如：
Mothers holding jobs outside the home should have flexible schedules to make it easier to care for their children. 在外工作的母亲们应该有灵活的时间以便照看她们的孩子。
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