Pumas never attack a human being expect ____ cornered.
A.they are B.being C.that they are D.when they are
except作为介词使用后面应该是可以跟动名词的,为什么这道题选B不对?
Pumas never attack a human being expect ____ cornered.
A.they are B.being C.that they are D.when they are
except作为介词使用后面应该是可以跟动名词的,为什么这道题选B不对?
【答】(1)句中的expect应该是except;(2)答案应该是 C.that they are,这里的except that (that可以省略)是连词,相当于连词only,意思是“要不是”。expect后面可以接动词不定式,不能接动名词,所以选择B是错误的。(3)except后面也可以接状语从句,如:I usually go to work by bike except when it rains. 除下雨的时候之外,我通常骑自行车上班。(摘自赵振才《英语常见问题解答大词典》增订版第五版p.455) 所以,选择D.when they are 也应该是正确的。