1.中文：我买了两条裤子。

(误)I bought two trousers.

(正)I bought two pairs of trousers.(glasses，shoes，trousers，spectacles，scissors，stockings等表示由两个部分合成的字习惯用复数，在表示一(两)条，把，双时，用a pair of，two pairs of等修饰。)

2.中文：他是我最好的朋友之一。

(误)He is one of my best friend.

(正)He is one of my best friends.(one of后要接可数名词的复数形式。)

3.中文：动物是人类的朋友。

(误)Animals are men’s friends.

(正)Animals are man’s friends.(用单数的man表示人类。)

4.中文：这是一则好消息。

(误)This is a good news.

(正)This is a piece of good news.(表示chalk，music，advice，cloth，meat，news等不可数名词的单一数量用a piece of修饰。)

5.中文：你愿意跟我交朋友吗?

(误)Will you make a friend with me?

(正)Will you make friends with me?(和某人交朋友用friend的复数形式。)

6.中文：我有太多功课要做。

(误)I have too many homework to do.

(正)I have too much homework to do.(homework，work，housework等不可数名词用much修饰。)

7.中文：英语电视怎么说?

(误)What’s English for 电视?

(正)What’s the English for 电视?(英语作为学科或语言时不加the;用作特指时加the.)

8.中文：班一家人要搬往伦敦。

(误)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。)