The young woman was often seen ( ) by the lake. A . to draw B.to drawing C. draw D. drew

选A

试题就是考see sb do的结构

1）感官动词see,watch,smell，notice等在主动语态时后接动词do或者doing
see sb do sth-------------被动式为sb be seen to do。
see sb doing--------------被动式为sb be seen doing。

 see sb do sth表示“看见某人做了某事”，强调看到某人做完了某事（强调结果）
 see sb doing sth表示“看见某人正在做某事”，强调某人正在做某事(强调过程)

比较下列两句：
I saw him repair his bike. 我看见他修了他的自行车。（他已修完了自行车）
I saw him repairing his bike. 我看见他正在修他的自行车。（强调看见正在修车）

2） 所以题目The young woman was often seen ____ by the lake.
换成主动态： He often saw the young woman____by the lake.

显然主动态应该填 draw，句子强调的是看见动作的结果，而不是过程。
被动态就为： be seen to do ,自然选A

B

see sb. do sth.的被动要加上to

A。被动语态用不定式。

a 主动用法 see sb do sth看见某人经常做某事；被动用法 所以是 sb be seen to do sth

这个年轻女人总被看见在河边画画