例(3)What type of security system can help the police track down a stolen car? (1997年1月六级题75)
(分析：此题属叙述、描述性事实细节题，短文最后一句提供了答案：In some states, you may be able to use a device that transmits radio signals, allowing stolen cars to be tracked by police. 句中"allowing stolen cars to be tracked by police" 和题干中"help the police track down a stolen car"意义相近，只是句式、用词作了变换，"transmits radio signals"是关键词，故答案：The transimitting radio signals.)
(2)因果型的题目短文中能直接找到原因或结果。通常表原因的关键词有：for that reason, for, as, because, since, as a result of, owing to, thanks to等。表结果的关键词有：as a result, therefore, consequently, thus, accordingly, so。考生阅读时要注意这些词后面的内容。
例(1)Why are newspaper considered as an important medium according to the passage? (1998年6月六级简答题S2)
(分析：此题用why来提问，短文中似乎没有because……回应句。但考生在第一段应该会看到这样一句话：Of all the media, television is clearly dominant, with newspapers a close second, at least as a source of news and other information. 此句中直接谈到"newpapers"的作用"as a source of news and other information"，as是重要标志，因而题干答案即为：Because they are a source of news and other information.
例(2)Why was it easy for boats to tumble over in the Colorado? (1998年1月六级简答题S2)
(分析：此题在短文第一段中没有出现任何表因果关系的连词，但文中有两处关键的话，即，all of us naturally set aside any pretenses(矫饰) and put out backs into ever stroke to keep the boat from tumbling over. <此处考生要知道keep … from … 之意，防止…被…>，……working together to cope with the unpredictable twists and turns of the river. 前一句话暗示出小船极易"tumble over"，后一句话表明河流有："the unpredictable twists and turns"，故答案为：Because the rivers is full of twists and turns.)
(3)范例型题目：需要概括答案的。表示举例的关键词有：for example, such …as, for instance, that is, as follow等。考生对这些词后面的内容要注意。
