英语同位语从句的几道选择题求解释

题目

英语同位语从句的几道选择题求解释
2 What's your opinoin of Mrs.Li's request______ we should spend half an hour reading English every morning?
A why B that C how D whether
3 The king made a promise______ anyone cured his on-ly son,he would give away half of his money to him .
A that B if C that if D if that
4 Word came______his son would be sent abroad to study business management sometime next year .
A that B whether C why D how
5 The problem will ap-pear_____a different welfare system will be crea-ted.
A unless B whether C until D if
6 -----Is there any possibility____you could pick me up at the airport?
------No problem
A when B that C whether D what
7 The students are forbidden,unless they have special pas-sea,_____after 11 p.m
A in staying B to say out C staying out D stay out .
老师解答的过程中附带一些说明比如为什么这么填,同位语这节课我当时很瞌睡,结果没听,现在为2013高考一轮复习的时候急了,分比较少不好意思啊.

答案

2答案选B,同位从的先行词是request,从句we should spend half an hour reading English every morning.不缺任何成分,故选B.相当于request的内容就是we should spend half an hour reading English every morning.
3.答案选C,先行词是promise,同位从中包括由if引导的条件状语从句,故选,that引导同位从,if引导同位从中的条件状语从句.
4.答案选A,先行词是word(消息),参见2的解答,同位从不缺成分,填that
5.答案选B,先行词是problem.同位从中不缺成分,缺“是否"这个意思,应填wheather,注意同位从不可以用if来引导.
6.答案选B,先行词possibility,理由见1,4的解答.
7.答案选B,注意两个逗号之间的部分为条件状从,去掉不影响句子主干,可以先略去不看,于是主语是the students,谓语是are forbidden to say out.主要考查forbide的用法,forbide doing sth,forbide sb. to do sth.,sb. be forbidden to do sth