1.中文：我買了兩條褲子。

(誤)I bought two trousers.

(正)I bought two pairs of trousers.(glasses，shoes，trousers，spectacles，scissors，stockings等表示由兩個部分合成的字習慣用復數(shù)，在表示一(兩)條，把，雙時，用a pair of，two pairs of等修飾。)

2.中文：他是我最好的朋友之一。

(誤)He is one of my best friend.

(正)He is one of my best friends.(one of后要接可數(shù)名詞的復數(shù)形式。)

3.中文：動物是人類的朋友。

(誤)Animals are men’s friends.

(正)Animals are man’s friends.(用單數(shù)的man表示人類。)

4.中文：這是一則好消息。

(誤)This is a good news.

(正)This is a piece of good news.(表示chalk，music，advice，cloth，meat，news等不可數(shù)名詞的單一數(shù)量用a piece of修飾。)

5.中文：你愿意跟我交朋友嗎?

(誤)Will you make a friend with me?

(正)Will you make friends with me?(和某人交朋友用friend的復數(shù)形式。)

6.中文：我有太多功課要做。

(誤)I have too many homework to do.

(正)I have too much homework to do.(homework，work，housework等不可數(shù)名詞用much修飾。)

7.中文：英語電視怎么說?

(誤)What’s English for 電視?

(正)What’s the English for 電視?(英語作為學科或語言時不加the;用作特指時加the.)

8.中文：班一家人要搬往倫敦。

(誤)The Ben’s are going to move to London.

(正)The Bens are going to move to London.(the Ben’s表示the Ben’s house;the Bens表示Ben一家人。)