【导语】高考竞争异常激烈，千军万马争过独木桥，秋天到了，而你正以凌厉的步伐迈进这段特别的岁月中。这是一段青涩而又平淡的日子，每个人都隐身于高考，而平淡之中的张力却只有真正的勇士才可以破译。为了助你一臂之力，逍遥右脑为你精心准备了《高三年级英语必修五重点短语：Unit 3》助你金榜题名！
1. take up
从事;占(时间、空间、注意力等);继续
This table takes up too much room. 这张桌子太占地方。
She has taken up a job as a teacher. 她当上老师了。
This chapter takes up where the last one off.
本章继续上一章的内容。
联想拓展
take off 脱掉(衣服等);起飞;打折;作为折扣而减价
take over 接管;获得对……的控制或管理
take apart 拆开;分开后将……分成许多部分
take for 把……视作;误认为
take...for granted 认为……是理所当然
take down 写下;记下
take back 收回(诺言)
2. sweep up
打扫;横扫
These students are sweeping up dead leaves.
这些学生们正在扫(拢)落叶。
He ran forward and swept her up into his arms.
他跑上前去一把将她抱在怀里。
The whole country was swept up in the excitement.
全国上下都沉浸在兴奋的气氛中。
We’d better sweep up all the bits of broken glass quickly.
我们快点把玻璃碴子扫干净。
联想拓展
sweep aside 放/堆到一边; 不予理会
sweep away 扫清;消灭;彻底消除
sweep off 扫清; 吹走; 大量清除
sweep out 扫掉; 清除
sweep over 将……一扫而光; (某种感情)掠过(……的心头)
重点句型
1. This is similar to the “jet lag” you get from flying,...
这就与你乘坐飞机会产生时差反应相似，……
联想拓展
when flying是when you are flying的省略形式。在有些表示时间、条件、方式或让步的状语从句中，如果谓语包含动词be，从句的主语又和主句的主语一致，或者主语是it，通常可以把从句中的主语和be动词省略。
When asked where’s the toilet, the waitress showed the way politely to the guest.
当被问及厕所在哪里时，服务员非常有礼貌地给客人带路。
Until finishing the homework, the child was allowed to watch the cartoon film.
直至完成作业，小孩才允许看卡通片。
If necessary, you can call help from the police.
有必要时，你可以向警方求助。
例如：翻译句子
①即使被打死，他仍然保守秘密。
②可能的话，到机场来接我。
③过马路时，孩子们被要求停下观望，再手牵手通过。
答案: ①Though beaten to death, he still kept the secret.
②If possible, please come to meet me at the airport.
③When crossing the road, the children are required to stop to look around and walk hand in hand.
2. ...some chairs rose from under the floor as if by magic.
……一些椅子就像变魔术一样从地板下面升了起来。
注意：from后面有时可接介词短语或where从句。
from under the floor 从地板下面
联想拓展
from behind the door 从门后面
from under the table 从桌子底下
From under the tree the man kept an eye on the sheep.
那个老人从树下留意着他的羊。
例如：单项填空
His head soon appeared out of the window, _____ he saw nothing but trees.
A. Where B. which C. there D. from where
解析:选D。该句是非限制性定语从句，尽管先行词可以表示地点，但句中强调目光的发出地，所以应用介词from+关系副词where。
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