2020年高考英语复习专题：名词性从句_第2页

　　经典习题

　　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。

　　4.I think Father would like to know I’ve been up to so far, so I decide to send him a quick note.

　　A. which B. why C. what D. how

　　解析：答案为C。考查宾语从句连词用法，由结构sb. be up to sth.可知，应选what作介词to的宾语。

　　5. We cannot figure out quite a number of insects, birds, and animals are dying out.

　　A. that B. as C. why D. when

　　解析：答案为C。本题考查宾语从句知识，figure out为及物动词，故此句为宾语从句，从句意得知连词在从句中作原因状语，故选why.

　　6.After Yang Liwei succeeded in circling the earth, our astronauts desire do is walk in space.

　　A. where B. what C. that D. how

　　解析：答案为B。此题句子为时间状语从句，全主句的主语是由主语从句来充当的，并且主语从句中不定式动词do缺少宾语，故选what。