专八改错练习第九篇：

One of the most important non-legislative functionsof the U.S Congress is the power to investigate.
The power is usually delegated to committees—eitherstanding committees, special
committees set for a specific purpose, or jointcommittees __1__
consisted of members of both houses. Investigations__2__
are held to gather information on the need for future
legislation,to test the effectiveness of laws already passed, to inquire into thequalifications and performance of
members and officials of the other branches, and in rare occasions, __3__
to lay the groundwork for impeachment proceedings. Frequently,
committees rely outside experts to assist in conducting __4__
investigative hearings and to make out detailed studies of issues. __5__
There are important corollaries to the investigative power.
One is the power to publicize investigations and its results. Most __6__
committee hearings are open to public and are reported widely __7__
in the mass media. Congressional investigations nevertheless __8__
represent one important tool available to lawmakers to inform
the citizenry and to arouse public interests in national issues, __9__
Congressional committees also have the power to compel
testimony from unwilling witnesses, and to cite for contempt
of Congress witnesses who refuse to testify and for perjury
these who give false testimony. __10__

参考答案及解析(反白可见):
1 在set和for中间加上up
短语set up表示“设立”，这里用作过去分词，修饰前面的committees。
2 consisted改为 consisting
joint committee 是consist of 的逻辑主语，所以要用现在分词。
3 in改为on
与occasion搭配的介词应该为on。
4 rely和outside中间加上on
rely 后面要用介词on。
5 out去掉
make studies 表示“进行研究”，这里没有必要用out。
6 its 改为 their
这里代词指代的是复数名词investigations，所以也要用复数形式。
7 to 和public中间加上the
表示“大众，公众”时，前面要加定冠词。
8 nevertheless 改为thus ,therefore
作者前面说国会有向社会公开调查信息的权利，本句说调查是立法者向公众传达消息的工具，这两句话之间应该是因果关系，而不是转折关系。
9 interests改为interest
作者此处要表达的是“激起公众的兴趣：，应该用”interest。interests一般表示“利益”。
10 these改为those
用代词指代一群人，后面在加定语从句修饰时，代词一般要用those。