Question

People have come to understand _____ prevents so many Americans from being as happy as on...

People have come to understand _____ prevents so many Americans from being as happy as one might expect. A．that it is why B．what does it that C．why it does that D．what it is that

Answer 1

D

试题分析：考查强调句型。本题考查的强调句型的特殊疑问句转换而成的宾语从句，任何一个宾语从句都使用陈述语序。本题强调的句子是主语,然后对主语进行提问。句意：人们逐渐地知道究竟是什么阻止如此多的美国人不如人们所预料的那么开心。故D正确。 点评：强调句型的基本结构为It is/was被强调成分that/who其它成分；其最大的特点就是去掉it is/was…that/who…句子仍然成立。要注意强调句型能强调除谓语动词以为的所有的句子成分。在考查的时候，经常会把强调句型和定语从句结合在一起考查，要注意分析句子的成分。要注意强调句型的一般疑问句和特殊疑问句的考查。