十名护士组成。make up“拼装；组成；编造（谎言）”，make up for“弥补”，都不符合题意。故A项正确。 3. in particular = especially
be particular about /over 对。。。。讲究，挑剔
He loves science fiction in particular. 尤其，特别
Peter was lying on the sofa doing nothing in particular. 具体的
She liked dresses of this pattern __________ and bought some material to make one herself. A. in particular B. in common C. in the flesh D. in place
解析：A in particular“特别地”；in common“共同的”；in the flesh“本人；亲自”；in place“在原处；恰当的”。句意：她特别喜欢这种样式的连衣裙，并买布料自己做了一件。
4. try out :试验；尝试；测试 (on在?上)
Toy manufacturers use employees’ children to try new products out. = Toy manufacturers try out new products on their employees’ children. 拓展延伸
leave out 省去；遗漏；不考虑 make out 理解；辨认出
work out 体育锻炼；算出；制定出 set out 出发；开始 break out 爆发
turn out 结果是；证明是
5. let out 发出；泄漏
She let out a cry of pain when she broke her legs. 发出……的叫声 Open the door and let me out! 让……出去 It was tom who let the news out. 泄露消息
He accidentally ____ that he hadn’t been home for three weeks. A. let out B. let off C. break out D. give out
解析：A 句意：他无意中透露他已三周未回家。let out泄露，使知道；let off宽怒，免除；break out爆发；give out发出，放出。
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拓展延伸
let alone 更不用说，更谈不上 let go 放手，放开，释放
let/leave sb /sth alone 对……放任不管，别烦 let down 把……放下，使……失望 let in 允许进入，容许，许可。
重要句型
1. This is why... 这就是??的原因。(强调结果) This is because... 这是因为??。(强调原因)
The reason why...is/was that...(??的原因是??)一般用that引导表语从句，而不用because。
单项填空
(1)He didn't go by bike with me. That's ________ there was something wrong with his bike. A．because B．why C．how D．when
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