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“It”典型句型例释
“It”典型句型例释孔祥发王爱萍 11月7日
“It”句型一直是近几年NMET命题的热点,同时也是日常教与学的重点和难点。在教材和练习中频频出现,由于其繁杂多变,尤其是一些近似句型的辨析,常使同学们望而却步。笔者在平时的教学中,注意收集这样的句子,现将这些句子分类整理并作一简析,希望能对同学们的学习有所帮助。
1.①It is 3 years ________ he joined the army.
②It will be 3 years ________ we meet again.
③Tom told me that it was 3 years ________ he had left school.?
A.before
B.after?
C.since
D.when
析:①C,②A,③C。做这类题目应从时态入手。句①是一个主从复合句,该句型常是:It+is(has been)+some time+since sb.did sth.主句用一般现在时或现在完成时,而从句则用一般过去时。句②为It will be (was)+some time before sb.does(did) sth.“多久某人干…”。主句要用一般将来时或一般过去时,before引导的从句则用对应的 一般现在时或一般过去时。又如:
It wasn’t long before we met again.
不久我们又见面了。
句③与句①是同一句型,只不过该句型出现在told引导的宾语从句之中了,故用了was和 had left 的形式。?
2.①________ is well?known to us all that the earth is round.
②________ is well?known to us all,the earth is round.
A.That
B.As?
C.It
D.Which?
析:①C,②B。句①中it是形式主语,真正的主语是从句“that the earth is round ”。句②中as引导一非限制性定语从句,代替后面整句内容,置于句首。
3.①Was it the house ________ Abraham Lincoln was born?
②Was it in the house ________ Abraham Lincoln was born?
A.that
B.where
C.which
D.both A and B
析:①B,②A。句①的先行词是the house,后面为一个定语从句,所以可填where或in which。句②为强调句型。判断一个句子是否是强调句型,先把it is…that…这一结构抛开,看其余部分能否构成一个完整的句子。那么,句①还原为Abraham Lincoln was born the house.the house之前缺少介词in,故不为强调句了。句②则相符,故选that。
4.①It’s very kind ________ you to help us.
②It’s very important ________ us to keep the balance of nature.
A.for
B.of
C.to
D.with
析:①B,②A。在句①中,常见的形容词有kind,good,nice,foolish,stupid,wrong,clever 等。他们用来修饰人,表示人物的品质或性格特征。句①可变为You’re very kind to help us.所以选B。而句②则不可,因其形容词只能修饰后面的不定式,故用for。?
5.①________ no wonder that he has passed the exam.
[1] [2] [3]
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