单选题
From 1946 until 1954, the Vietnamese had struggled for their independence from France during the First Indochina War. At the end of this war, the country was temporarily divided into North and South Vietnam. North Vietnam came under the control of the Vietnamese Communists who had opposed France and who aimed for a unified Vietnam under Communist rule. The South was controlled by Vietnamese who had collaborated with the French. The United States became involved in Vietnam because it believed that if all of the country fell under a Communist government, Communism would spread throughout Southeast Asia and beyond. This belief was known as the "domino (多米诺骨牌)theory." The U.S. government, therefore, supported the South Vietnamese government. This government's policies led to rebellion in the South. In 1965 the United States sent in troops to prevent the South Vietnamese government from collapsing. Finally, however, the United States failed to achieve its goal. and in 1975 Vietnam was reunified under Communist control: in 1976 it officially became the Socialist Republic of Vietnam. During the conflict, approximately 3 to 4 million Vietnamese on both sides were. killed. More than 58.000 Americans lost their lives.
单选题
At the end of______, the country was temporarily divided into North and South Vietnam.
【正确答案】
C
【答案解析】这是一个细节题，文章的第一段中的“At the end of this war, the country was temporarily divided into North and South Vietnam.”这一句可推出，it指的是上一句中的the First Indochina War，但要注意小心掉入选择项D设置的陷阱之中，所不同的是D项少了—个first，但就是这个词让不少洋洋自得的考生丢了分。
单选题
The United States became involved in Vietnam because it believed that ______.
【正确答案】
B
【答案解析】根据文章的第三段得出。其中有一句“The United States became involved in Vietnam because it believed that if all of the country fell under a Communist government, Communism would spread throughout Southeast Asia and beyond.”意为“美国政府卷入越南战争是因为它相信如果所有的国家处于共产主义政府的领导之下，共产主义将会席卷整个东南亚甚至更远。所以，它很害怕这一点。
单选题
In the sentence "The South was controlled by Vietnamese who had collaborated with the French. ", "collaborate" means______.
【正确答案】
A
【答案解析】从前一句“North Vietnam came under the control of the Vietnamese Communists who had opposed France and ...”里“had opposed France”可以得知北越南是反对法国的，法国对此恨之入骨，肯定会转而帮助南越。因此，这儿“collaborate”可以选A。同时，根据词根“laborate”，由labour (劳动)一词加上“co”前缀(共同的)引申出共同劳动，共同合作之意即可得出。
单选题
According to the passage, which of the following is NOT true?
【正确答案】
D
【答案解析】运用排除法一一将句子放到文章中对照得出。第一句意思是“越南战争是1959年至1975年间发生在越南的一次军事斗争，斗争双方是北越和美国武装及南越军队”。从全文来看，这一句是对的。第二句实际上是对文章最后—段第一句“In 1965 the United States sent in troops to prevent the South“Vietnamese government from collapsing”的英文释义，即美军于1965年出兵越南是为了防止南越政权的覆灭，B项也是对的。第三句实际上是利用数字玩了一个小技巧。句中...1.5 to 2 million Vietnamese on each side were killed”分析时要注意“on each side”是每一边死了1.5至2百万，而文章中是“3 to 4 million Vietnamese on both sides”即双方共死了3至4百万人；平均下来一边刚好是1.5至2百万，C项也是对的。就只剩下D项了。仔细分析D句，发现话说反了，应是美国支持“North”导致“South”方面叛乱。