二、精典名题导解
选择填空
1. A computer can only do ________ you have instructed it to do.
A.how B.after C.what D.when
解析:答案为C.本题考查的是名词性从句作宾语的用法.此句的引导词既作连词又在宾语从句中充当一成分,故what最合适.
2. -I drove to Zhuhai for the air show last week..
-Is that _________ you had a few days off ?
A.why B.when C.what D.where
解析:答案为A.此题考查的是从句的用法.根据题意我上周开车去珠海看航空展去了.下面一句接着问:那就是你为什么离开的原因吗?故用why引导表语从句表示原因.
3. I hate __________ when peope talk with their mouths full.
A.it B.that C.these D.them
解析:答案为A.本题考查的是形式宾语的用法.题意为我讨厌人们谈话时嘴里塞满东西.该空白处没有任何含义,而且已经用了when连接该宾语从句,所以此处只填一个形式宾语it.