Ⅰ.完成句子
1．, you should remain silent at the conference.
除非被邀请讲话，你应该在会上保持沉默。Unless (you are) asked to speak
2．London Olympics was a great success.
毫无疑问，伦敦奥运会是一个巨大成功。There is no doubt that
3．I
he will win the race.
我不怀疑他将赢得比赛。don’ t doubt/have no doubt that
Ⅱ.单项填空
1．Though________to see us,
the professor gave us a warm welcome.
A．surprisingB．was surprised
C．surprised
D．being surprised
解析：选C。though surprised 是though he was surprised的省略形式，surprised(吃惊的)表示人自身的感受。
2．There is no________
in pushing children unless
they are talented and they enjoy it.
A．wonder
B．need
C．point
D．doubt
解析：选C。
(it is) no wonder ...“不足为奇”；there is no need to do ... “没有必要做……”；there is no point in doing sth.“做……没有意义”；there is no doubt that ...“毫无疑问……”。句意： 逼迫孩子们没有意义，除非他们有天赋或者喜欢它。
3．The terrorist attack happened in Norway on 22 July
2011，________
over 90 people.
A．killed
B．killing
C．kill
D．to kill
解析：选B。考查现在分词作结果状语。句意：2011年7月
22日挪威发生了恐怖袭击事件，使90多人丧生。