1,Lung cancer, like some other cancers, often doesn't produce ________ until it is too late and has spread beyond the chest to the brain, liver or bones.

A) trails B) therapies C) symptoms D) symbols

2,Although many experts agree that more children are overweight, there is debate over the best ways to ________ the problem.

A) relate B) tackle C) file D) attach

3,The physical differences between men and women can be ________ directly to our basic roles as hunters and child-bearers.

A) pursued B) traced C) switched D) followed

4,Research shows that there is no ________ relationship between how much a person earns and whether he feels good about life.

A) successive B) subsequent C) significant D) sincere

5,American college students are increasingly ________ with credit card debt and the consequences can be rather serious.

A) boosted B) burdened C) discharged D) dominated

答案与解析：

1,C

肺癌和其他癌症一样经常没有症状直到晚期扩散到脑、肝和骨头才会有症状产生。

本题主要是考察对选项四个词语意思的辨别.由题意可知应该选择含有症状意思的词语,即symptom.symptom和symbol无论是形状还是意思都比较接近,务必将两个词加以区分.

2,B

尽管很多专家同意更多的孩子过度肥胖，对于处理问题最好的方式仍然在争论。

本题考查的是四个选项中可以和the problem搭配的动词,并且应该是一个及物动词,由此确定答案为B

注意:题干中出现的expert的词性,既可以做名词也可以做形容词.relate这个词有两种搭配,即A relate to B表示A与B有联系,A relate with B表示把A和B联系起来.无比区分这两种搭配在意思上的区别.attach的固定搭配:be attached to 表示附属于;依恋于.

3,B

男女有别从早期的男人狩猎和女人哺育延伸了下来。

本题主要是考察对选项四个词汇意思的辨析,根据题意可知应选择具有追溯意思的词汇,即trace.

trace是四级考试中比较容易出现的词汇,且它的意思比较多,词性既可以做名次又可以做动词,一定特别及一下这个词.pursue的词性为动词,其名次为pursuit,注意辨析.

4,C

研究表明一个人赚多少钱和幸福感之间的联系没有重要联系。

本题的题干为由show引导的同位语从句,从句为there be句型,注意句型relationship between...and...,表示...和...之间的联系.

本题主要考查对四个选项的词汇的意思的辨析以及与relationship的搭配.

5,B

美国大学生信用卡债务的负担越来越重结果可能是非常严重。

本题题干是由and连接的两个分句.本题主要考查对选项词意思的辨析.由题意分析可知应选B.dominate是比较重要的词汇,考试中经常涉及.应记住尤其派生出来的一些列词汇:dominant(a.占优势的,统治的)--predominant(a.占主导地位的,显著的)--dominion(n.统治,管辖;领土,版图)。