[2] ______ is known to all, Chinese economy has taken off.
[3] I took some medicine for the bad cold, but _____ didn’t help.
[4] I took some medicine for the bad cold, ______ didn’t help.
[5] I find ______ is a pity that he failed in the driving test.
A. which
B. that
C. it
D. As
〖2017名词性从句预测4〗
is known to us all is that the 2017 Olympic Games will take place in L.
A.It
B.What
C.As
D.Which
Whether是解!
不充当从句的任何成分,表示“是否”表明从句内容的不确定性。不可以省略。
通常,引导主语从句、表语从句和引导同位语从句时,要用连词whether,不用if;习惯上也只能说whether or not,而不说if …or not。
____ the 2000 Olympic Games will be held in Beijing is not known yet.
A. Whenever
B. If
C. Whether
D. That
试题中的从句位于句首,不难知道这是一个主语从句,所以答案是C。但是在宾语从句中表达“是否”既可用if也可用whether。
主语从句、表语从句和同位语从句,只能用 whether 引导,不能用 if .
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