作者：朱孔仁 賈利民

1. 【問】My leather tennis shoes are worn out. I need another pair. 第一句中的are worn out 是強(qiáng)調(diào)被動嗎？第二句中的pair可以用one替換嗎？

【答】wear out 意為"穿壞；用舊"，后面要接賓語。如果表示"某物被穿壞或用舊"則用be worn out。雖然該結(jié)構(gòu)在形式上與被動語態(tài)一致，但它只強(qiáng)調(diào)狀態(tài)，而不強(qiáng)調(diào)被動。

第二句中的pair 指的是a pair of leather tennis shoes, 故不能用one代替pair。

2.【問】Even though they're a little expensive, I'll take them. 句中even though的用法與even if一樣嗎？

【答】even though =even if, 用于引導(dǎo)讓步狀語從句，意為"盡管；即使；縱然"。它們引導(dǎo)讓步狀語從句時，若主句是一般將來時，從句通常用一般現(xiàn)在時代替一般將來時。

但二者又有區(qū)別：even though引導(dǎo)的從句的內(nèi)容往往是事實；而even if引導(dǎo)的從句可能是假定性的。試比較：

Even though he knows it, he'll not let out the secret.（他知道這個秘密）

Even if he knows it, he'll not let out the secret.（不確定他是否知道這個秘密）

3．【問】The camera cost so much that I didn't buy one. 句中so可以換成such嗎？

【答】不可以。so...that...與such...that...都可作"如此......以致于......"解，但二者所慣用的句型不同。so 通常用于以下幾種句型：

1）so + adj. / adv. + that從句。如：

The book is so expensive that I can't afford it.

2）so + many / much / few / little + n. + that 從句。如：

He has so few friends that he is lonely.

3）so + adj. + a（an） + n. + that從句。如：

She is so clever a girl that we all like her.

而such 通常用于句型：such + (a/an) + adj. + n. + that 從句。如：

He is such a young boy that he can't go to school.