知識點:be certain、be sure的用法


高中英語 | 知識點:be certain、be sure的用法

點擊添加圖片描述(最多60個字)編輯


1、be certain/ be sure

be uncertain about意思是“對……不確定(沒把握)”

uncertain的詞根是certain,意思是“確信的,有把握的”,常用於以下結構:

(1)be certain(sure) to do sth.“肯定會做……”(表示某事將要發生)。如:

He is certain(sure) to come next Sunday.

(2)be certain(sure) of/ about sth.“確信、有把握”(表示某個人的思想狀態)。如:

We are certain/ sure of victory.

(3)名詞從句作主語時,一般多用certain.

It is certain that he will come.

2、be different from 與……不同

Your idea is different from mine. 你的想法和我的不同。

對比:make sb./ sth. different from使某人/某物不同於……

Her special accent makes her different from others. 她特殊的口音使她與眾不同。

3、be familiar with/be familiar to

be familiar with的主語是有生命的事,意為“某人對人、事熟悉”;be familiar to的主語是無生命的事物,意為“某人/事為某人所熟悉”,對比:He is very familiar with the names of plants in English.他很熟悉植物的英語名稱。Suzhou and Hangzhou are familiar to many foreigners.蘇州和杭州為許多外國人所熟悉。

I’m not familiar with European history./European history is not familiar to me.我對歐洲歷史不太熟悉。

注意:be familiar with/to 還表示“精通、通曉”

如:French is as familiar to him as English.他對法語就象對英語一樣精通。

[應用] 一句多譯

①這些事實是每個學生都熟悉的。

②她精通4種語言。

Key:①These facts are familiar to every schoolboy./Every shoolboy is familiar with these facts.

②She is familiar with four languages./Four languages are familiar to her.


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