case
四级考试中出现过五次

意 义 n.事例,实例,事实,情况;病例;案件;箱,盒,套;手提箱

搭 配

a case in point 有关的事例,例证

a case in point 恰当的例子

in any case 无论如何,不管怎样

in case 假使,以防(引导虚拟语气)

sum up the case 概括事实

in case of 假如,如果发生;防备

in no case 无论如何不,决不

in this/that case 如果这样.那样的话

a case of measles 麻疹病例

appeal a case 申述

pack a case 装箱

in the case of 就…..来说,至于

as the case may be 看情况，根据具体情况
辨 析
case 事实,事例,情况,其可笼统地指一个完整的论题,也可表典型的事例,也可用于表医学上的病例或法律上的案例.

instance 为正式用词,指从事实中援引单独事例,隐含其典型性

重难点 语法规则：in case意为“假使；免得，以防（万一）”。In case引导的从句可以用陈述语气，也可用虚拟语气，虚拟形式为should+动词原形

effect
四级考试中出现过五次

意 义 n.结果、效果; v.实现、使生效

变 形

effective 有效的，生效的，起作用的；给人印象深刻的；实际的，事实上的

effectively 有效地、起作用地

搭 配

bring/carry/put into effect 实行、实现

take effective measures 采取有效措施

effective range 有效射程；

effective ways of reducing pollution 降低污染的有效方法；

take effect 生效、起作用

to the effect that 大意是

effective 有效的、起作用的

in effect 实际上、实质上

come/go into effect 生效

to no effect 无效；毫无结果

辨析

effect consequence

effect 指明显的原因所产生的后果。

consequence 可指没有明确原因的后果或效果。

effective valid

effective 表示能产生实际的效果。

valid 指仍为权威部门认可，可以继续使用，是法律用语。

transmit

意 义 vt.播送、发射；传送、传染

构 词 trans(从…到….)+mit(发送)

变 形 transmission 播送、发射 ;传送、传染

搭 配

transmit knowledge from one generation to another 把知识由一代传给另一代

transmission of news 消息的传播；

transmit news by radio 由无线电发送消息

真题练习

They took _______ measures to prevent poisonous gases from escaping. 答案 D

A) fruitful B) beneficial C) valid D) effective

Though the long-term___ can not be predicted, the project has been approved by the committee. 答案 B

A)affect B)effect C)result D)consequence

The new appointment of our president ______from the very beginning of next semester. 答案 A

A)takes effect B)takes part C)takes place D)takes turn

I was advised to arrange for insurance _____I needed medical treatment. 答案 C

A)nevertheless B) although C)in case D)so that

I left for the office earlier than usual this morning _________traffic jam. 答案 C

A)in line with B)for the sake of C)in case of D)at the risk of

We left the manager a note________ he wanted to know where we were. 答案 B

A)if B)in case C)so that D)unless

The lawyer advised him to drop _________,since he stands little chance to win. 答案 C

A)event B)incident C)case D)affair

American football and baseball are becoming known to the British public through televised _________ from the United States. 答案 D

A)transfer B) deliveries C) transportation D) transmissions

Some diseases are ___ by certain water animals. 答案 D

A) transplanted B) transformed C) transported D)transmitted

Communication is the process of_______a message from a source to an audience via a channel. 答案 A

A)transmitting B)submitting C)transforming D)switching

Cultural________indicates that human beings hand theirs languages down from one generation to another. 答案 C

A)translation B )transition C)transmission D)transaction C