核心考点十二 名词性从句
——使语境更丰富多彩
1．After three hours'climbing，they reached ________ they thought was the place they'd been dreaming of.
A．what B．which C．where D．that
解析 考生误以为是地点状语从句，误选C.where。而reached是及物动词，后边接的是宾语从句，宾语从句除去插入语they thought后缺主语，所以应选what。
答案 A
2．A plan has been put forward ________ more graduates should go to work in the country.
A．when B．that C．whether D．how
解析 考查同位语从句，表达A plan的具体内容，has been put forward将名词与从句隔开，加大了难度。
答案 B
3．It is pretty well understood ________ controls the flow of carbon dioxide in and out the atmosphere today.
A．that B．when C．what D．how
