Question

________ is known to us all is that Antarctica is the coldest place on Earth.

A．It

B．As

C．What

D．That

Answer 1

C

 
試題分析：句意:大家都知道南極洲是地球上最冷的地方。這里what引導的主語從句，它在從句中做主語，that在主語從句中不作成分，it不能起引導的作用，as“正如”，根據句意故選C。
點評：本題難度適中。判斷從句中用哪個連詞，需用記住連詞的用法，在句中的作用，連詞也是高考的熱點，需要考生平時多練習。需要考生會分析句子成分理解句意。
即學即練: We students got lost in the forest and decided to remain________we were and waited for the guide.
A.where       B.what       C.how        D.who
解析：A。where引導表語從句，并在從句中作地點狀語。