每周一練：it的用法

It的用法

It的用法在高考中也是重現(xiàn)率較高的語言點，尤其是it用于強調句。其考查方式多通過“單項填空”進行，偶爾也出現(xiàn)在“短文改錯”和“完形填空”中。

一、要點點拔

1．代替上文中提到過的人或事物。指代人時，一般用于小孩或身份不十分明朗的人。

   1) －Who is the baby?　　　

      －It‘s my teacher’s son．

   2) －Who is that gentleman?

      －It's my friend Tom．He(不可用It) wants to see you．

2．用于表達天氣、環(huán)境、時間、距離、季節(jié)等。例如：

   1) It’s half an hour’s walk from here to our school．

   2) It‘s nice and warm here．

   3) But it's two o'clock now, and it's time for us to go to school．

3．用作形式主語.it 沒有具體意義，而只是幫助把真正的主語移至句子后尾，使句子顯得平穩(wěn)一些，能借it 給移至句子后尾的主語有三種：一種由不定式表示，一種由動名詞表示，一種由從句表示。
    1).It 替代真正的主語——動詞不定式短語.
               It is easier to say than to do .
                It is a good act to help the others.
    2).it 替代真正的主語——動名詞短語,以動名詞短語做主語的句子，主要在以no good, no use,   no harm, dangerous, foolish 等詞作表語的句中.
             It’s no harm drinking running water in that area。
             It’s foolish talking like that.

    3).it 替代從句作主語，用從句做主語的帶it 的句子很多,常見的有下面幾類：
    ①It is a pity (a shame ,a fact ,a wonder ,a good thing, etc. ) that…
      It is a shame that he didn’t pass the exam.
    ②It is strange ( surprising, obvious ,true, good, possible, clear, etc. ) that…
      It was clear that they had no desire for peace.
    ③It seems (happened ,turned out, etc.)that…
      It seemed that things were not as they expected.
    ④It is said  ( decided ,expected ,etc)that …    
      It is said that the tickets have been sold out.

4.用作形式賓語。

當復合賓語中的賓語是不定式,－ing短語或從句往往用it作形式賓語,而將真正的賓語移至句末,句子重心后移。

   1) We find it difficult to learn English well in such a short time．

   2) We think it no use crying over spilt milk．

   3) We made it clear when and where we were going to have the meeting．

二、綜合練習

（一）英文翻譯成中文

1.It’s easy for me to learn English.

2.It is difficult for me to drink so much water in one hour.

3.It’s difficult for the CLEVER boy to swim.

4.It is easy for us to join the football team.

5、It’s dangerous for us to swim IN THE SEA .

6.It is difficult for Lulu to cook some delicious food.

7．It’s happy for woman teacher to teach us.

8.It is easy for him to go different companies.

（二）英文翻譯成英文

1、對于那個胖孩子來說騎車是困難的。

2、對于瑪麗來說做數(shù)學作業(yè)是沒用的。

3、對于那個矮男孩來說加入籃球隊是勇敢的。

4、把英語學好是有用的。

5、對于那個老人來說爬樹是危險的。

6、保持我們的環(huán)境干凈和整潔是非常重要的。

7、對于那個笨女孩來說找到答案是很困難的。

8、對于那個女孩來說放學去購物是不可能的。

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