2.D细节理解题。根据最后一段可知人们在地铁里没空看别人，是因为大家都忙于玩游戏读电子书听音乐或看电影，故选D。

　　3..B词义猜测题。根据have been designed可知它是电脑里已经设计好的程序，故选B。

　　4..C主旨大意题。整篇短文叙述了伦敦的人们是怎样打发他们在做地铁的时间的，故选C。

　　科普知识类阅读理解。

　　阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。

　　For many of us, aspirin, one of the most common nonprescription drugs, is a constant companion. It is the most effective drug that we have, and if we eliminated all but three drugs, aspirin would definitely be one of the three drugs we should keep. Even with all the new drugs available, it still has a place in many of our medicine cabinets, as a “miracle drug” in its ability to fight pain and inflammation (炎症) and even more amazing in its ability to reduce heart attack and stroke risk.

　　Aspirin is the first member of a class of substances called non-steroidal anti-inflammatory drugs (NSAIDs非甾体抗炎药). These drugs reduce pain, fever and inflammation, and are used to treat a variety of conditions. Many believe that aspirin has many benefits not yet fully understood. Media reports on the use of aspirin to prevent or treat diseases such as heart attacks and cancer leave many people struggling to keep all the facts straight. Others who cannot tolerate aspirin might feel a bit left out as new uses and benefits of aspirin continue to appear in the news.

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