Question

The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements

1. A.
   if
2. B.
   till
3. C.
   as
4. D.
   while

Answer 1

C
試題分析：句意：宇航員發(fā)現(xiàn)隨著宇宙飛船更遠地進入太空時，它變得越來越難控制它的運動軌跡。這里that引導(dǎo)的是賓語從句。這個賓語從句是復(fù)合句，逗號后是主句，as the spaceship went further and further into space 是從句。A. if如果； B. till直到； C. as隨著； D. while當……時候。根據(jù)句意故選C。
考點：考查連詞的用法。