某校一高中生近日通过哈尔滨《新晚报》——“老百姓”栏目发表市民建议，《人行道板不

第三部分：阅读理解（共15小题；每小题2分，满分30分）

请认真阅读下列短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

A

Around the age of 40, honest people may already admit to noticing changes in their mental abilities. This is the beginning of a gradual decline that in all too many of us will end with full-blown dementia(痴呆).

However, a few drugs that might do the job, known as “cognitive enhancement(认知增强)”, are already on the market, and a few dozen others are on the way. Perhaps the best-known is modafinil. Licensed to treat narcolepsy, the condition that causes people to suddenly fall asleep, it has notable effects in healthy people too. Modafinil can keep a person awake and his or her attention fixed for 90 hours straight, with none of anxiety, nervousness and bad concentration. In fact, with the help of modafinil, people who can hardly go to sleep can perform even better than their well-rested, un-medicated(未服药的) selves.

It’s an open secret that many, perhaps most, prescriptions for modafinil are written not for people who suffer from narcolepsy, but for those who simply want to stay awake. Similarly, many people are using Ritalin not because they suffer from attention problem or any other disorder, but because they want superior concentration during exams or heavy-duty activities.

Some drugs have also been specially designed to improve memory. Many of these seem to work, and without any major side effects. So why aren’t we all on cognitive enhancers already?

“We need to be careful what we wish for,” says Daniele Piomelli at the University of California at Irvine. Repairing and improving memory may have unwanted effects, he warns. “Eventually we may end up remembering things we don’t want to.”

56. According to the message, we can learn that originally modafinil is a drug designed for _____.

A. for both healthy and unhealthy people

B. the treatment of dementia

C. people who can hardly go to sleep

D. those suffering from falling asleep suddenly

57. The passage mainly talks about _____.

A. dementia—a threat to the old people                     B. modafinil—a nice drug for dementia

C. relevant drugs to a better brain                      D. cognitive enhancement

58. The underlined sentences in paragraph two wants to tell us that _____.

A. without modafinil people suffering from sleep problems cannot rest well

B. people lacking sleep can work better than they are in a healthy state if taking modafinil

C. modafinil has greater effects on healthy people if they take it

D. with modafinil people suffering from narcolepsy can fall asleep easily

59. What’s the writer’s attitude to the drugs mentioned in the passage?

A. Positive.    B. Negative.    C. Objective(客观的).   D. Doubtful.

读印度略图，回答下列问题

（1）填出图中字母代表的地理事物名称：

    A海湾：                        B海洋：                          C平原：                           

（2）①是                    （城市）是该国最大的                 工业中心；②是              （城市）是该国最大

    的                工业中心。

（3）印度棉花主要分布地区是                                           。

（4）该国发展农业生产的不利条件有_                                         _______。

车身图绘制采取每边为（）mm的座标方格。

A、100

B、150

C、200

D、300

微机调节器中用于人机对话、数据调整的是（）。

A.通讯联络板；

B.数／模转换板；

C.键盘及显示装置；

D.中央处理器。

在美国，自1856年以来，历届总统不是共和党人便是民主党人。第二次世界大战前的历次总统大选中，两大政党的总统候选人所获选民票的总和，平均高达全部选民票的95%。这种情况说明两大政党（）

A.控制了美国政治生活

B.主宰了联邦政府

C.赢得了美国公民的一致支持

D.保持了政策的一致性