Question

In my point of view, the question is not _____ the world is going to have a new economic crisis, but when.

A．that

B．how

C．what

D．whether

Answer 1

D

试题分析：考查表语从句。本题中的whether引导的是一个表语从句，whether在句中不充当任何成分，只是一个引导词而已。句意：在我看来，问题不是是否有经济危机，而是经济危机什么时候发生。That在名词性从句中没有任何意思，what在句中要做句子成分，how与句意不符。故D正确。
点评：连接表语从句的连接词有：that, what, who, when, where, which, why, whether, how, whoever，whomever，whichever ，whatever等。还有如because, as if, as though等。解答这类题目，关键在于分析清楚句子结构。通过判断引导词在从句中所作的成分及意义，来选择正确的引导词。