GMAT备考，除了背背背，更重要的就是练练练！通过练习，巩固知识，熟练技巧，最终才能在GMAT考试中发挥出色，取得好成绩，所以练习的重要性不言而喻。因此，小编为大家精心准备了GMAT考试各类题型的练习题和答案解析，帮助大家每日一练，为考试做好准备。一起来看今天的题目。
今日练习题为语法题，题目如下
Analyzing campaign expenditures, the media has had as a focus the high costs and low ethics of campaign finance, but they have generally overlooked the cost of actually administering elections, which includes facilities, transport, printing, staffing, and technology.
A Analyzing campaign expenditures, the media has had as a focus
B Analyses of campaign expenditures by the media has been focus on
C In analyzing campaign expenditures, the media have focused on
D Media analyses of campaign expenditures have had as a focus
E In their analysis of campaign expenditures, the media has been focusing on
题目解析
题目释义
In analyzing.., the media have focused on …., but they have overlooked….句子主语，the media 是复数形式，谓语动词focus的完成时态，接but引导的转折句，主语they，指代the media，谓语overlook的完成时态。But的前后形式一致，平行对称。
本题考点
主谓一致，简洁有效
the media是复数形式，谓语动词需用复数。
现在分词在句首，其逻辑主语应该和后面的主句主语一致。
注意大平行。
选项分析
(A) media是复数形式，原型是medium，has主谓不一致错误;has had as a focus 表达wordy,可以直接使用focus的动词形式;focus后少了介词on，在某方面focus要加上介词on。
(B)Analyses谓语动词应该是复数形式，has使用错误;they可以指代analyses，这个点没有问题，analyses也可以focus，也可以overlook。
(C) Correct;可以说media或者analysis have a focus on，此时focus是名词，也可以说analysis have a focus on;但是不能用analysis focus on，此时focus做动词，只有media才能主动做这个动作。
(D)首先，D在句式上和but后面的句子不平行，首先就应该发现跟C比较他更加的inferior;has had as a focus 表达wordy,可以直接使用focus的动词形式;they可以指代media analyses，这个点没有问题;has had as a focus (sth.)，是把sth.后置了，语法上也没有问题。(D并没有corrective型错误)
(E) media是复数形式，原型是medium，has使用错误，主谓不一致;has been focusing on，没有必要使用完成进行时，它不是一段时间内持续进行的事儿，题目中没有相关的时态标志词，且根据but前后时态对称也应该用现在完成时。
补充说明
The media = all the organizations, such as television, radio, and newspapers, that provide news and information for the public, or the people who do this work
类似例题
It may be that by focusing primarily on a patient's mental condition and on vague and often very speculative psychodynamic factors, predictions about the patient's future behavior decrease in accuracy.
(A) predictions about the patient's future behavior decrease in accuracy
(B) mental health professionals lessen the accuracy of their predictions about the patient's future behavior
(C) the accuracy of predictions about the patient's future behavior lessens
(D) a decrease in accuracy is seen in predictions about the patient's future behavior can be predicted less accurately
(E) the patient's future behavior can be predicted less accurately
Key：B，仅有B中Professionals作为people才能够行使focus的动作。A中prediction无法focus，故排除。
