Question

—— What’s wrong with Tom?
—— Bad luck! Tom     his bike and hurt his leg.

A．fell

B．fell off

C．fell down

D．fell behind

Answer 1

B               

             
試題分析：考查動詞。Fell摔倒；fell off從……摔下來；fell down跌倒；fell behind 下降退后。句意：湯姆怎么了？很糟糕！他從自行車上摔下來，傷到了腿。 1. fall down強調的是“滑倒、倒下”，后接賓語時應加上介詞 FROM。The boy hit the tree to hard that he fell down.男孩重重地撞在樹上，結果自己倒下了。 2.fall off強調的是“跌落、從……掉下來”，后直接接賓語。The girl is falling off the bike. （=" The" girl is falling down from the bike.）女孩正從自行車上摔下來。故選B項。