答案及解析：来源：考试大

1．文章主题分析：computers in cars
You’re far from home on a lonely road. Shadowy forests ... A thick mist (雾) ...
… Night is closing in. and you’re low on gasoline.
This is a situation where an in-car computer that can navigate would be a big help.

2. 直接看题，抓住提干中的被选项中所提示的信息。来源：考试大
1.By describing a typical situation of a lost driver on the road, the author intend to ____.
A. make us believe how complex the highway computer network is.近
B. let us know how in-ca computers are linked to road signs *
C. show us how helpful a navigation computer would be –与文章主题最接近
D. tell us that NAVSTAR has come into use.

题目分析：细节题。问题问及目的，可能需要考生进行推断/归纳总结。来源：考试大

被选项分析：（注意结合文章主题—文章标题）判断C最可能是答案。

C．解题分析：借助题干中的核心词（黑体文字）作为答案线索，这样发现答案相关句：

You’re far from home on a lonely road. Shadowy forests stretch away on both sides. A thick mist (雾) makes it difficult to see far beyond your car’s windshield (挡风玻璃).

“Can this be route 90A?”  you wonder. If it is, you should be near a town. Yet there’s no hint of one. （与题干内容呼应）Night is closing in. and you’re low on gasoline.

This is a situation where an in-car computer that can navigate would be a big help. （直接答案相关句）

考点分析：总结概括句/复杂结构句。来源：考试大

补充：来源：考试大
close in v.包围, 封闭来源：考试大
low adj.  缺钱的，接近完全耗尽的, 不足的, 贬值的, 贬低的： 来源：考试大
e.g. My savings account is low.我的存款几乎用完了来源：考试大
e.g. low on supplies供应不足
e.g. have a low opinion of his qualities对他的素质的低的评价

2. The word “ navigate” in Paragraph 3 means ___.
A. help one control the traffic
B. help one find one’s way
C. give a ship correct information about its course *
D. direct a plane to its destination *

题目分析：细节题。问题问某个单词的含义，可能需要考生借助上下文或搭配结构进行判断。

被选项分析：（注意结合文章主题—文章标题）判断C，D不可能是答案。

 B．解题分析：找到包含“ navigate”的句子，借助上文语意（或解答上一题所获取的对文章的理解）直接判断答案B。

This is a situation where an in-car computer that can navigate would be a big help.

考点： 文章中核心词词义的确认。

3. The navigation computers have one thing in common: they all ___.
A. contain series of maps on videodiscs （录象盘）or videotapes
B. contain 13,300 maps covering the continental US
C. can be obtained free of charge *
D. cost a lot of money *

题目分析：细节题。问题问及文章的内容主体“navigation computers”的共同点，可能需要考生进行推断。

被选项分析：（借助常识判断）判断C，D不可能是答案。

A．解题分析：利用“navigation computers”作为答案线索，注意题干中的修饰词“all”这样在文章中找到答案相关句：

A car computer that navigates? Yes! Such computers exists. Several experimental models are being tested by General Motors, Ford, Chrysler, and several foreign car markets. These computers vary in details. But they all contains series of maps on Vediodiscs or videotapes. For example, one computer system contains 13,300 maps covering the continental US.

考点：考察代词（These （computers））的指代内容。来源：考试大