855 Section 02 Q1

garonne

1.     A fire in an enclosed space burns with the aid of reflected radiation that preheats the fuel, making ignition much easier and flames spreading more quickly.

(A) flames spreading

(B) flame spreads

(C) flames are caused to spread

(D) causing flames to spread（D）

(E) causing spreading of the flames

请问这题只考平行对称么？A为什么不好啊？

amorela

是的.主要考点是平行.makeing与casuing并列.

我的理解是,如果用A的话,那么spreading分词结构修饰flames.这句话的主干就成了: A fire burns with the aid, making ingination and flames.其实就有背于它要表达的真正含义了.

stevegt

同意LS

如果A选项是 flames spread也对

make sth do sth

garonne

我愿来是把flames spreading理解为一个动名词和前面的ignition对称的，我这种想法的错误在哪里啊？