Keys: 1). in time 2). in time 3). in no time 4). At no time 5). at the same time 6). At one time 7). at a time 8). for the time being

3. in one‘ s turn 轮到某人；接着 [典例]

I will see you, each in your turn. 我将要一个接着一个地看你。 [短语归纳] turn短语：

in turn轮流；一个接着一个 by turns轮流；一阵……一阵…… take turns (to do sth.)轮流（做某物） It‘s one‘s turn to do sth. 轮到某人做某事了 [练习] 用turn短语填空或翻译句子。

1). She went hot and cold _______ _______. 2). 我们轮流着开车。

____________________________________________________________________________________ 3). 今天轮到谁发言了？ ____________________________________________________________________________________ Keys: 1). by turns 2). We drove the car by turns / in turn. = We took turns to drive the car. 3). Whose turn is it to give a speech today?

4. prevent...from = stop...from = keep....from 使……不做事；阻止……做某事 [典例]

His back injury may prevent him from playing in tomorrow‘ s game. 他背部的伤可能使他参加 不了明天的比赛。

【用法辨析】注意: prevent / stop sb. from doing sth.中的from可省, keep sb. from doing sth.中 from不可省略，因为keep sb. doing sth.是―使某人一直做某事‖之意；但如在被动语态中，

三者的from都不可省；当后接sb‘ s doing sth. 作宾语时，只能用prevent或stop，不能用keep， 因为没有keep sb‘ s doing sth. 的句型。 [练习] 根据句子的意思完成句子或翻译。

1). Doctors took action to _______ _______ _______ _______ _______ (防止这种疾病的蔓延). 2). Of course I can‘ t _______ your going abroad. 3). 警察阻止他们携带武器。 _______________________________________________________________________________________ Keys: 1). prevent/stop/keep the disease from spreading 2). prevent / stop 3). The police prevented/stopped/kept them from carrying weapons. = They were prevented/stopped/kept from carrying weapons.

5. block out 挡住（光线） [典例]

That wall blocks out all the light. 那堵墙把光线都遮住了。 [短语归纳] out短语： break out 爆发，发生 burst out 大声喊叫，突然…起来 go out 外出；过时；(灯)熄 put out 关(灯)；扑灭；生产 come out 出现，显露；出版，结果是 help out 帮助解决难题(或摆脱困境) look out留神；注意 watch out 注意；提防 find out 找出，查明，发现 pick out挑出，辨认出，分辨出 speak out 大声地说，大胆地说 think out仔细思考某事；想出（主意等）

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hang out 挂出，闲逛 knocked out (拳击中)击倒，打昏 sell out 售完(某种货物)，脱销 turn out 结果证明是 run out (of) 用完，耗尽 check out 结帐离去，办妥手续离去

hand out 分发，散发 give out 分发；用完，消耗尽；发出(光、声音等) [练习] 用out短语填空。

1). At the end of the race his legs _______ _______ and he collapsed on the ground. 2). It‘ s easy to _______ him _______ in a crowd because he is very tall. 3). His nwe book will _______ _______ next month.

4). We thought it was going to rain; it _______ _______ to be a find day. 5). We _______ _______ of/from our hotel at 5 a.m. to catch a 7 a.m. flight.

Keys: 1). gave out 2). pick; out 3). come out 4). turned out 5). checked out

6. be off = set off 出发；动身；不用上班/学/开张 [典例]

Then we were off. 随后我们就启程了。 [短语归纳] off短语：

get off 下车 fall off 从……摔下来 take off 脱下；起飞 keep off 远离 turn off 关闭 pay off 付清，还清 set...off 给……送行 kick off 踢球 jump off 跳下 give off 散发 show off 炫耀 shut off 关闭 [练习] 用turn短语填空或翻译。

1). It is a Sunday and we _______ _______ (不用上班) today. 2). Her husband _______ _______ on a business trip somewhere. 3). There we saw a sign reading, ―_______ _______ the grass‖.

4). After ten years of hard work, she finally _______ _______ all her debts. Keys: 1). are off 2). was off 3). Keep off 4). paid off

7. break out (灾难、战争等) 突发；爆发 [典例]

Fire broke out during the night. 夜间突然发生了火灾。 [短语归纳] break短语：

break away from 脱离（党派）；摆脱（控制） break down毁掉；坏掉；(计划/谈判)失败 break up打碎；拆散；(会议)结束；分裂(解体) break off (使)停止；中断；折断 break into sth. 强行进入某处 break one‘ s word/promise食言；说话不算数 [练习] 用break短语填空。

1). A terrible tsunami _______ _______ in the southeastern countries of Asia at Christmas, 2004. 2). When do you _______ _______ for Christmas?

3). Negotiations between the two sides have _______ _______. 4). His house was _______ _______ last week.

Keys: 1). broke out 2). break up 3). broken down 4). broken into

8. watch out 密切注视；当心；提防 [典例]

Watch out! There‘ s a car coming. 小心! 汽车来了。 [重点用法]

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