高一英語必考知識點

　　高一是初高中的過渡時期,在高中的起始階段對學生英語聽力能力培養的重要性具有非凡的意義。高一英語有哪些必考知識點呢?接下來小編為你整理了，一起來看看吧。

　　：it的用法

　　it的概念：

　　it可用作人稱代詞、指示代詞、先行詞及引導詞等。

　　it 的用法：

　　1、it可指天氣、溫度、時間、距離等。

　　如：It is cold today, isn't it?

　　2、用作人稱代詞，代替前文提到過的事物。

　　如：The dog is not acold-blooded animals. It doesn't need to hibernate.

　　3、為避免重複，it可用來代替前面說過的短語或句子。

　　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、代替指示代詞this，that。

　　如：—What's this?

　　—It's an album.

　　—Whose new bike is that?

　　—It's Mary's.

　　注：it與one，that的區別：

　　it=the***this, that***+名詞，特指並且代替前面所提到的某特定事物。

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

　　one=a+名詞，one指前面提到的同類事物中的不同的另一個。

　　如：He needs a computer, but he can't afford one.

　　that=the+名詞，that指代的名詞與前面的名詞屬於同一類，但不屬同一個。

　　如：The population of China is larger than that of Japan. that指代population，但其後有一個of短語作定語，以區別於the population of China。

　　注：it與that的異同：

　　it指同一事物，that指同類但並不是同一事物。

　　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 這個句型表示截止到說話時為止的某人的一種經歷，關鍵是注意time前有序數詞，主句是一般現在時is時，從句要用現在完成時;如果主句用一般過去時was時，則從句須相應地用過去完成時。

　　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、在一些相對固定的片語中，沒有特殊含義，經常不翻譯。

　　如：He's never really made it as an actor. 作為演員，他從未獲得過真正的成功。

　　It is my turn. 輪到我了。

　　強調句中的it：

　　可以用來改變句子結構，使句子的某一成分得到強調：

　　1***強調句的基本句型it's/was+被強調成分+that/who+其他成分

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

　　強調主語：It was I that/who told Jim the news in our office yesterday.

　　強調賓語：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.