高中英语中常用it固定句型结构

发布 2020-01-03 09:02:28 阅读 6448

it was/will be long(时间one week/two years ..before从句。

译为“很久(一周/两年后……)才……”

如:it will be long before he is back .很久以后他才回来。

2. it is/has been/was + some time + since从句。译为“自从……以来已经有多长时间了”。

如:it has been three days since he was ill.他生病已经有三天了。

注意:如果since从句中的谓语动词为延续性动词时,应译为“自从不……以来已经有多长时间了”。如:

it is / has been seven years since i taught in thisschool.

我离开这所学校已经有七年了。

时态的把握:如果主句运用的是一般现在时或现在完成时,那么since引导的从句用一般过去时;如果主句运用的是一般过去时,那么since引导的从句常用过去完成时。

3. it + be + the +序数词+ time + that从句。译为“是某人第几次做某事了”。如:

it is the first time that i h**e e here这是我第一次来这儿。

注意:如果主句是一般现在时或一般将来时,从句用现在完成时;如果主句是一般过去时,从句用过去完成时。

4. it +be +具体时间+ when ..译为。

当某事发生时,时间是在……”如:

it was 10:00 when they arrived at the factory.

他们到达工厂时是十点。

is (high) time that sb.did sth.该句型表示“某人现在该做某事了”,从句常用过去时(虚拟语气)。

如:it is high time that you got up.

6.itis+adj.(+forsb./sth.)+todosth.常用的形容词有:easy,hard,difficult,possible,important,impossible,necessary,good,bad,exciting,interesting,surprising等。如:

itisnecessarytochangeyourjob.

7.itis+n.(+forsb./sth.)+todosth.常用的名词有:pity,shame,pleasure, one’s duty, one’s

job, fun, joy, good manners, bad manners等。如:

it is a pity for you to h**e missed such a wonderfulplay.

it is good manners for the young to take up the seatsfor the old.

8.it is+adj.+of sb.+to do sth.

此句型中的形容词主要描述某人的品德、特征。能用于该句型的形容词有:

kind, nice, wise,silly, polite, impolite, friendly, foolish, clever等。如:

how silly it was of you to give up such a goodchance!

9.it is+adj.(+n.)+doing sth.

此句型中的形容词和名词常见的有:no/little use, no/much good,useless等。如:

it’s no use crying over spilt milk.

10.it takes /took sb.+一段时间+to do sth.

表示“做某事花费某人多长时间”。如:

it took us half an hour to ride to the town .

11.it is+及物动词的过去分词+that从句。

此句型中常见的及物动词的过去分词有:said, told, known, reported,recorded, thought, believed, considered等。如:

it is reported that the russian president will visitchina next week.

12.it+不及物动词+that从句。

此句型中不及物动词常见的有:seem,happen,appear,matter等。如:

it seems that there will be a he**y snow tomorrow.

it happened that i met my good friends in the museumyesterday.

13.强调句型:it is+被强调部分+that/who从句。

在使用强调句型时要注意,指人时可以用who或that,其它情况一律用that。如:

it was under the bed that my brother hid the ballthis morning.

14. make it

表示“成功;做到;赶上”。如:

the train is due to le**e in five minutes we will never make it .火车再有五分钟就开了,我们是绝对赶不上了。

15. see to it that ..注意;留神;负责。

see to it that everything is ready.

注意一切都要准备就绪。

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