【考例8】The prisoner was ____.

A. set freely B. enjoyed free

C. get freedom D. set free

[考查目标]考查free，freely，freedom等词的运用。

[答案与解析]D set sb free为一个固定短语，表示"释

放某人"。

1. infect

1) 使某人／某物传染，感染

～ sb. / sth. (with sth.)；cause sb. / sth. to have a

disease

The laboratory animals had been infected with the

bacteria.

试验室里的动物都受到这种细菌的感染。

Police have sealed off infected areas of the country.

警方已将全国各感染区封锁了。

One of the boys in the class had a fever and he soon

infected other children.

班上的一个孩子发烧了，不久他就传染上了其他孩

子。

2) 使受影响，使受感染

fill (sb.'s mind or spirit) with happy and positive ideas

or feelings

Her cheerful spirits and bubbling laughter infected the

whole class.

她那快乐的情绪和爽朗的笑声感染了全班。

6. lack 缺乏，不足

(1) 名词用法

She has no lack of supporters.

她不缺支持者。(有很多支持者)

The draught was caused by a lack of rain.

这场旱灾是雨水不足造成的。

[注意] lack作可数或不可数名词，lack前面常与for

搭配，表示"缺乏"的原因，此时常用作不可数名词，

如：

We now can't discuss the plan for lack of time.

因时间所限我们现在不能讨论这个计划。

(2) 动词用法

lack 可作及物或不及物动词用，作不及物动词时与

for 搭配表示原因，与in搭配表示"在......方面缺

乏"。

The young completely lacks experience.

这个年轻人完全缺乏经验。

They lack for money at present.

目前他们缺乏资金。

He is lacking in responsibility.