(1)要避免重復(fù)使用比較等級(jí)。如：

[誤]He is more better than before.

[正]He is much better than before.

[正]He is better than before.

(2)要避免將主語(yǔ)含在比較對(duì)象中。如：

[誤]China is larger than any country in Asia.

[正]China is larger than any other country in Asia.

(3)比較對(duì)像必須是同類(lèi)可比較的。如：

[誤]Your computer is more expensive than Tom.

[正]Your computer is more expensive than Tom’s.

(4)最高級(jí)要注意將主語(yǔ)包括在比較范圍內(nèi)。如：

[誤]Tom is the tallest of his three brothers.

[正]Tom is the tallest of the three brothers.

(5)要注意定冠詞在比較級(jí)中的使用。請(qǐng)比較：

Which is larger, Canada or Australia?

Which is the larger country, Canada or Australia?

Tom is taller than his two brothers.

Tom is the taller of the two brothers.