[即学即练4]

(1)I need __________________.我需要立即回答。

(2)The injured were ________________________ help.那些伤者急需救助。

(3)I shall be back __________________.我马上就回来。

(4)Please send me an email ____________ you reach Sichuan.你一到四川就给我发电子邮件。

答案是：an instant reply;in instant need of;in an instant；the instant

(5)__________ I saw him I knew he was the man the police were looking for.我一看见他就认出他正是警方在寻找的那个人。

答案是：Instantly

5．take up 占去(时间/空间)；开始学习；从事……；继续；接受；拿起；改短(衣服)；加入

take off 脱(衣服)；起飞；成名

take in 吸入；领会；包含；收留(某人)

take away 解除；消除(痛苦等)

take back 收回(说过的话)；退回(货物)；与……重归于好，使回忆起

take down (＝write down, note down) 写下；拆除

take on 呈现(新面貌)；雇用；承担责任

take for 当做；误认为

take apart 拆开

take over 接管，接收

[即学即练5]

写出下列句中take up的意思。

(1)Finally he took up the textbook and read us the lesson.

___________________________________________________

(2)The table takes up too much room.

____________________________________________________

(3)She took up the story where Tim had left off.

____________________________________________________

答案是：拿起；占去(空间)；继续

(4)John took up writing poetry while at school.

____________________________________________________

(5)She took up his offer of a drink.

____________________________________________________

(6)This skirt needs taking up.

____________________________________________________

(7)Their protests were later taken up by other groups.

____________________________________________________

答案是：开始从事；接受；改短(衣服)；加入

6．lose sight of看不见

at the sight of...在看到……时

catch sight of...望见，看到……

in/within sight在视线内，可以被看见

in sight of...可以看见……

out of sight看不见了，不被人看见

[即学即练6]

(1)I __________________ him in the crowd.在人群中我再也看不到他了。

(2)She let out a cry _______________________the snake.她一见到蛇，就发出叫喊声。

(3)Sheila __________________ her own face in one of the shop windows.希拉在一扇橱窗里瞥见了自己的脸。

(4)When we got to the beach, there wasn’t a soul ____________.我们到达海滩时一个人也看不到。

答案是：lost sight of;at the sight of;caught sight of;in sight

7．speed up (使)加快速度；(使)增加……速度

at a/the speed of 以……的速度

run at full speed 以全速跑

pick up speed 加快速度

with all great speed 以全速，开足马力

at a high/low speed 以高速/低速

at (the) top speed 以最高速度

speed limit 速度限制

[即学即练7]

(1)The train began to __________________. 火车开始加速。

(2)The train soon ____________. 火车很快加速了。

(3)She ____________ and overtook them.她加快速度超过了他们。

(4)The train runs ___________________ 200 kilometres an hour.火车以每小时200千米的速度行驶。

答案是：pick up speed；speeded up;speeded up;at a speed of