Question

高中英语非谓语动词题。

The speakman was seatEd in front of all the journalists at the press conference,_______ to answer all kind of questions.
为什么填的是prepared而不能用having prepared呢？既然已经准备好了不就是完成么？

Answer 1

楼主没有弄清楚having done这个非谓语结构的用法特点。

having done在语法上成为现在分词的完成形式，它既表示句子主语和该动词之间为主动关系，又表示该分词所表示动作发生在谓语动词所表示动作之前。
如：Having finished his homework, he went out to play soccer with his friends.
he和finish之间为主动关系，且finish his homework发生在went out之前。

该题中，句子主语the speakman和prepare之间构成如下搭配：the speakman was prepared to answer all kinds of questions。
其中包含固定短语 be prepared to do sth，所以用在非谓语结构中时，直接去掉be动词即可，所以答案是：prepared。

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Answer 2

AAC。。。
see
sb
doing
sth
would
like
to
do
固定搭配
be
listened
to
表被动。原型为
listen
to
sb
do
sth
感官动词如see,hear，listen
to
后面都接动词原形

Answer 3

A
see
sb
doing
B
本来打算去但是没去
c
listen用被动时to要还原
seat的用法比较特殊．当动词时有两种用法：
1．be
seated.
例：they
are
seated
there.
他们坐在那．
2．seat
oneself.
例：they
seat
themselves
there.
他们坐在那