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“it”用法总结(经典版)


㈠ 1.it作人称代词
1.1.it的最基本用法是作人称代词,主要指刚提到 的事物,以避免重复: Ningbo is a beautiful city, isn’t it?

1.2.也可以指动物或婴儿(未知性别的婴儿或孩子): Is this your dog?No, it isn’t. 1.3.也可指抽象事物: It was a great surprise to me when he did a thing like that.

2.非人称代词it
it有时并不指具体的东西,而泛指天气、时间、环境等, 称为非人称的it: 2.1.指天气: It is a lovely day, isn’t it? It is a bit windy. 2.2.指时间: It was nearly midnight when she came back. 2.3.指环境: It was very quiet in the café. 2.4.指距离: It is half an hour’s walk to the city centre.

㈡.引导词it 1. It is + 被强调部分 + that ...

使用该句型有以下几点请注意: ① 强调句的谓语is或was永远用单数. It was yesterday that I met your father in the street. ②不管被强调部分是哪种状语,只能用 that连接,不得使用where、when等连词. It was in the street that I met your father yesterday.

③被强调部分为人时,可用who(主格或宾格)和 whom(宾格)代替that,用that也行。 1) It was your father that/whom /who I met in the street yesterday. 2) It was I that/who met your father in the street yesterday.

④强调句中 也要注意主谓一致、人称一致和否定转移 的问题。 It is they who are our friends. It was not until ten o'clock that we got home last night.

第一句不是强调句,when不可改为 that,因为去掉it was和that后,只能组成 ⑤注意不要混淆强调句和其他从句。Itnight.” “We got home ten o'clock last is was…that…为强调句标志,去掉后仍可组 这样一个不完整的句子;第二句是强调 成一个完整的句子,只是没被强调,而其他 从句一般不具备这一特征。 句,that不可改为when.
比较: 1) It was ten o'clock when we got home last night.我们昨晚到家时已十点了。 2) It was at ten o'clock that we got home last night.我们昨晚是在十点到家的。

要点点拔

2. 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.

3. it 用作形式主语
3.1 代替主语从句 1)It is + adj. +that从句
① It is clear ( obvious, true, possible certain....) that ..... “清楚(显然,真的,肯定...)” It is very clear that he’s round and tall like a tree. ②. It is important ( necessary, right, strange, natural...) that ... 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.

2).It is +v-ed +that 从句 ① It is said (reported, learned....) that ... 据说(据报道,据悉...)“。 It is said that he has come to Beijing.

②. It is suggested ( ordered /demanded/insisted/commanded... ) that ... 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.

3). It is a pity ( a shame ... ) that ... 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. It is a pity that he is ill.

4).① 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 常用过去时态表示虚拟.常译为"是(正是)...的时 侯..."

It is time that children went to bed.
② It is the first ( second ... ) time that ... “是第一(二)...次...”。 It is the first time I have been here. = This is the first time I have been here.

5). 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...

3.2.作形式主语替代不定式

1). It takes sb. ... to do sth. "做...要花费某人.." It took thousands of people many years to build the Great Wall.

2). It is kind ( of sb. ) to do sth. 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 ,stupid , wise wrong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.

3). It is necessary ( for sb. ) to do sth. 常见的形容词有:① important, necessary, natural ② easy , safe ,common ,normal ,hard , difficult ,dangerous , 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.

3.3.作形式主语替代ing形式

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. It's useless trying to argue with Shylock.

4. It 作形式宾语. 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.

五、特殊句型 1). It is .... since ...。 It is ( has been ) 5 years since his father died.

2). It is ... when ...。 “当...的时候,是...” It was 5 o’clock when he came here.
3). It be ... before ... 该句型主句中的 it 指时间, 主句中的时态常是一般将来时或过去 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.

4). 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
5). 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.

6)make it 及时赶到;成功;办成 You can make it if you hurry. You needn’t worry; he will make it.

7)catch it 被责骂; 受处罚 If I come home late I’ll catch it from my mother You’ll catch it because of your carelessness.

8). It的一些习惯用法 ? How is it with your study? 学习好吗? ? That’s it . 这就对了。 ? It went hard with him. 他身遇不幸。 ? It is all over with me. 我完蛋了。 ? We must fight it out.我们必须坚持到底。 ? I can’t help it. 我没有办法。


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