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高一英语必修一复习重点

时间:2020-08-25 23:19:02
高一英语必修一复习重点

  
it的概念:

  it可用作人称代词、指示代词、先行词及引导词等。

  it 的用法:

  1.it可指天气、温度、时间、距离等 。

  如:It is cold today, isnt it?

  2.用作人称代词,代替前文提到过的事物。

  如:The dog is not acold-blooded animals. It doesnt need to hibernate.

  3.为避免重复,it可用来代替前面说过的短语或句子。

  如:I tried to persuade my father to give up smoking, but found it impossible. (it=to persuade my father to give up smoking)

  4.代替指示代词this,that。

  如:—Whats this?

  —Its an album.

  —Whose new bike is that?

  —Its Marys.

  注:it与one,that的区别:

  it=the(this, that)+名词,特指并且代替前面所提到的某特定事物。

  如:Hes bought a new car, so he drives it everywhere to show ito ff.

  one=a+名词,one指前面提到的同类事物中的不同的另一个。

  如:He needs a computer, but he cant afford one.

  that=the+名词,that指代的名词与前面的名词属于同一类,但不属同一个。

  如:The population of China is larger than that of Japan. that指代population,但其后有一个of短语作定语,以区别于the population of China。

  注:it与that的异同:

  it指同一事物,that指同类但并不是同一事物。

  如:I like the climate of Kunming more than that of Beijing.

  The climate of Kunming is mild, and I like it.

  5.It/This/That+be+the first(second, third...) time+that-clause 这个句型表示截止到说话时为止的某人的一种经历,关键是注意time前有序数词,主句是一般现在时is时,从句要用现在完成时;如果主句用一般过去时was时,则从句须相应地用过去完成时。

  如:This is the first time(that) these Europeans have visited the Great Wall.

  It was the fifth time(that) I had paid a friendly visit to America.

  6.在一些相对固定的词组中,没有特殊含义,经常不翻译。

  如:Hes never really made it as an actor. 作为演员,他从未获得过真正的成功。

  It is my turn. 轮到我了。

  强调句中的it:

  可以用来改变句子结构,使句子的某一成分得到强调:

  1)强调句的基本句型its/was+被强调成分+that/who+其他成分

  原句:I told Jim the news in our office yesterday.

  强调主语:It was I that/who told Jim the news in our office yesterday.

  强调宾语:It was Jim that I told the news in our office yesterday.

  或:It was the news that I told Jim in our office yesterday.

  强调地点状语:It was in our office that I told Jim the news yesterday.

  强调时间状语:It was yesterday that I told Jim the news in our office.

  2)强调句的一般疑问句型Is/Was+it+所强调部分+that/who...?

  如:Was it you that told Jim the news in your office yesterday?

  3)强调句的特殊疑问句型疑问词+is/was+it+that/who...?

  如:Who was it that told Jim the news in your office yesterday?

  【注】强调句与主语从句虽然在形式上很相似,即都含有it is(was)...that。但,区别在于:强调句去掉it is(was)…that之后,句子结构仍然完整,而主语从句却不能这样。

  如:(It is)our hope(that) the two sides will work towards peace.

  解析:去掉It is…that之后,句子是不成立的。由此得出该句不是强调句,而是一个简单的主语从句,it是形式主语,从句是真正的主语。

  

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