此处有解释
另外:
做表语的非谓语动词的选择
表语的考查多侧重于分词做表语形式的选择,很少有动名词的用法的考查,虽然选项中有不定式作为干扰项,只要能看出是做表语的也就不用考虑。如动名词作表语:
① The house was very quiet, ____ as it was on the side of the
mountain。
(1999。6)
A。 isolated B。 isolating
C。 being isolated D。 having been isolated
② These surveys indicate that many crimes go _____ by the police,mainly becausenot all victims report them。
(2000。6)
A。 unrecorded B。 to be unrecorded
C。 unrecording D。 to have been unrecorded
分词做表语可以做系动词be的表语,也可以做其它系动词的表语,如go, feel,seem, look, remain等等。
这些系动词后非谓语动词的用法规则是相同的。
3。不定式常表示一次性具体的行为,动名词表经常性习惯性的行为,v+ing表示主语的性质特征。
He likes to go for a walk this evening 。今晚
He likes having a walk every day after supper。
每天
The film is interesting。电影的性质特征,一般不用人做主语。
。