单选题
American Government

The United States is a federal union of 50 states. The capital of national government is in Washington D. C. ( District of Columbia). The federal constitution sets up the structures of the national government and lists its powers and activities. The constitution gives Congress the authority to make laws which are necessary for the common defense and the good of the nation. It also gives the federal government the power to deal with national and international problems that involve more than one state. All powers that are not given to the federal government by the constitution are the responsibility of the individual states.
The federal government has three branches - the executive, the legislative, and the judicial. The legislative branch makes the laws, executive branch carries out the laws, and judicial branch interprets the laws. The President heads the executive branch and the Supreme Court heads the judicial branch. The legislative branch includes both houses of Congress—the Senate and the House of Representatives. The constitution limits the powers of each branch and prevents one branch from gaining too much power. For example, Congress can pass a Law the President may sign it. Nevertheless, the Supreme Court can declare the law unconstitutional and nullify it.
All government in the United States is" of the people, by the people and for the people". The people elect the President and the members of Congress. However, the President appoints the heads of federal departments and the Supreme Court judges. Every citizen votes in secret. Consequently, no one knows for whom and individual votes. The people believe that their government should provide a framework and order within which they are left free to run their own lives.

单选题 Who makes the laws?
【正确答案】 A
【答案解析】考查对某一事物特点的理解。第一段第三行讲了国会立法。
单选题 The capital of the United States lies in ______.
【正确答案】 B
【答案解析】考查具体事物所处的位置。第一段第二句话介绍了美国首都华盛顿处于哥伦比亚特区,由政府直辖并不隶属于任何州。
单选题 Based on what you can know from the passage ,which of the following statements is TRUE?
【正确答案】 C
【答案解析】考查对某一事物的性质/特点的理解。从第二段可知,美国联邦政府实行三权分立,行政、立法、司法各行其是互不干扰。政府各职能部门的头目虽然由总统任免,但是部门设置与总统无关,宪法是限制各个权力机关的,不把权力下放给联邦政府。
单选题 The constitution limits the powers of each branch of the federal government because ______.
【正确答案】 D
【答案解析】考查某一事件发生的目的。第二段倒数第二句明确表明为了避免权力失衡,宪法制约每个权力分支。
单选题 The main point of this passage is ______.
【正确答案】 B
【答案解析】考查对全篇/段落主旨大意的把握。通篇都是和美国政府有关:政府所在地、构成、运作方式等。