美国概况人文知识练习题: 1. In area, the United States is the ____ largest country in the world. A. 2nd B. 3rd C. 4th D. 5th 2.The 50th state in America is ____ A. Alaska B. Texas C. Hawaii D. Rhode Island 3. Mauna Loa, the world's largest active volcano, is located in ____ A. Hawaii B. Alaska C. Texas D. Perth 4. Richard Nixon resigned in 1974 because of ____. A. the Great Depression B. the Black Power Movement C. the Watergate Scandal D. the Isolation policy 5.All the following universities are located in New England EXCEPT____ A. Yale B. Harvard C. MIT D. Berkeley 6.The United States has less than 6% of the world’s population; yet it produces about ____ of the total world output. A. 20% B. 25% C. 30% D. 35% 7.What forms a natural boundary between Mexico and the United States? A. The Rio Grande River B. The southern Rocky Mountains C. The Colorado River D. The Gulf of California 8. The US formally entered the Second World War in ____ A. 1937 B. 1939 C.1941 D. 1943 9. The Presidents during the American Civil War was . A. Andrew Jackson B. Abraham Lincoln C. Thomas Jefferson D. George Washington 10. The emblem of the Democratic Party is ____. A. elephant B. donkey C. bear D. bull