问题 单项选择题

Which of the following statements is the most appropriate title for the passage

Why did the United States first launch satellites into space

A.To improve navigation for warplanes and warships.
B.To guide smart bombs that home in on moving targets.
C.To collect meteorological data.
D.To sense remote volcanic eruptions.

答案

参考答案:A

解析:

[分析]: 因果关系的找寻和判断。
原文第一段中说美国发射卫星的目的是“in order to improve navigation for fighters, bombers and warships”即“为战斗机、轰炸机和战舰导航”,由此可见,选项A的说法与原文相符,是正确答案。
[解题关键] 掌握表因果关系的信号词,有助于迅速判断因果关系,从而得到正确答案。如原文中in order to短语的使用,便表明了这种关系。

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单项选择题