真题练习

1013._____ they are close friends is not clear though they live together.

A.That
B.If
C.What
D.Whether

1014._____ sculpture is to a block of marble, education is to a human soul.

A.That
B.Which
C.What
D.Where

答案解析

1013.答案是D；whether可以引导主语从句、表语从句、宾语从句和同位语从句，而if只可引导宾语从句，表示是否。
1014.答案是C；考查固定句型：A is to B what C is to D，意为：A对B而言就像C对D而言一样。