不久，一架直升机来到了现场搭救那次空难中的幸存者。

　　 ③Most important political decisions are made behind the scenes.

　　大多数的重要政治决定都是秘密作出的。

　　[即境活用2]

　　A lot of negotiating has been going on ________ the scenes.

　　A．with　　　　　　 　B．in

　　C．behind D．at

　　解析：选C。句意：广泛的谈判一直在秘密进行。behind the scenes"在幕后，不公开地"。

　　3. lose sb. to ...因为......而失去某人

　　[教材原句]　According to the World Health Organization(WHO), more than 4 million children have died of Aids, and more than 15 million children have lost their parents to Aids.

　　根据世界卫生组织(WHO)的统计，已有超过四百万的儿童死于艾滋病，超过一千五百万的儿童由于艾滋病失去了父母。

　　①She has just lost her husband to heart failure.

　　她丈夫刚因心力衰竭去世了。

　　lose sb. sth.　　　　　 使某人输掉或失去某物

　　lose oneself in... 全神贯注于......

　　lose heart 灰心

　　lose one's way 迷路

　　lose weight 减轻体重

　　②Those comments may well have lost them the election.

　　那些评论很可能使他们输掉这场竞选。

　　③My teacher told me not to lose heart.

　　我的老师告诉我不要灰心。

　　[即境活用3]　完成句子

　　①他最近体重轻了不少。

　　He has_lost a lot of weight recently.

　　 ②上周她母亲被癌症夺去了生命。

　　She lost_her_mother_to cancer last week.

　　4. bid n．[C]努力争取；招标 vi. & vt. (bid, bid)出价；投标；试图

[教材原句]　In a bid to control the problem, the government has opened labs to monitor