either
［误］ -I don't like opera.
-I don't like too.
［正］ -I don't like opera.
-I don't like either.
［析］ 在否定句中用either表示"也"，而在肯定句中用too表示"也"。
［误］ Either you or I are right.
［正］ Either you or I am right.
［析］ 这在语法书中被称作就近原则，即哪个主语离谓语动词近，则应采用与哪个主语相一致的谓语动词，相同用法的还有neither…nor…，not only…but also…，以及or在连接两个主语时。如：You or he is to go home. The others will have to stay in the classroom.
elder
［误］ My older brother has gone to Shanghai.
［正］ My elder brother has gone to Shanghai.
［析］ 在表示兄姐的长幼时应用elder表示"哥哥姐姐"，如：my elder sister 姐姐，但表示岁数时则多用older，如：She is two years older than I.
empty
［误］ Are these seats empty?
［正］ Are these seats taken?
［析］ empty是指空洞的没有任何物体，如：The house was empty, 其意思是没有任何家具或屋内无人。但座位是否有人坐应用take.
English
［误］ My sister studied English language very well.
［正］ My sister studied the English language very well.
［正］ My sister studied English very well.
［析］ 在泛指某一种学科时，不应加冠词，如：I like history.但如特指某一门学科时则应加冠词，如：He likes the history of America.
enjoy
［误］ I enjoy to play football.
［正］ I enjoy playing football.
［析］ enjoy后要接动名词，而不接不定式。
［误］ Did you enjoy at the English evening?
［正］ Did you enjoy yourself at the English evening?
enough
［误］ I'm sorry. You are not studying enough carefully.
［正］ I'm sorry. You are not studying carefully enough.
［析］ enough要用在形容词或副词之后。
［误］ Do you have enough of money?
［正］ Do you have enough money?
［正］ Do you have enough of the money?
［误］ The coffee isn't enough.
［正］ There isn't enough coffee.
［析］ enough可以作be动词的表语，但其主语应是代词，如：That's enough. It was enough. 如果是名词时应换用上面的句型。
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