每题3分，共45分 1、 Insomnia Insomnia is the inability to sleep restfully. It is a problem to nearly everyone at some time. A person may be awake for an hour in the middle of the night and then, next morning, feel that he hardly slept all night. Normally, worry about not getting enough sleep is the worst aspect of most insomnia. If insomnia occurs repeatedly, it is important to find its possible causes and try to correct them. Any of large number of simple factors may make it difficult for someone to fall asleep. His mattress may be too soft or too hard. If there are too many blankets on a hot night, he may be too warm;if the mattress is too light he may feel cold during the night. The bedroom itself may be overheated or too cold. If it is not dark enough, or too noisy, this may cause difficulty in sleeping. Eating shortly before going to bed may also be responsible for insomnia. Drinks, such as tea or coffee, can also keep people awake. Inability to fall asleep is sometimes a symptom of emotional or mental disorder. The cause of insomnia may be easy to correct. The sufferer should check the mattress, and bedroom temperature, and make any necessary changes. He should relax for an hour or two before bedtime, perhaps by reading a book, watching television or taking a warm bath. If he wakes during the night he should try turning on the light and reading for a while. Taking warm milk and a biscuit or two may be helpful. Above all, he should try not worry about sleeplessness—when someone is tired enough he nearly always falls asleep.
参考答案： B
答案解析： a common complaint.
1According to the passage, insomnia is
参考答案： A
答案解析： a dark and quiet room.
2According to the passage, people who has difficulty in sleeping should sleep in
参考答案： D
答案解析： drink anything that will keep him awake.
3According to the passage, if a person wants to fall asleep fast he shouldn’t
参考答案： C
答案解析： Worrying about sleeplessness.
4According to the passage, what is the worst aspect of insomnia?
参考答案： A
答案解析： its cause can be corrected by making oneself feel tired enough.
5According to the author, insomnia shouldn’t be a serious problem because
2、 Mind-reading Machine A team of researchers in California has developed a way to predict what kinds of objects people are looking at by scanning what''s happening in their brains. When you look at something, your eyes send a signal about that object to your brain. Different regions of the brain process the information your eyes send. Cells in your brain called neurons are responsible for this processing. The fMRI (functional Magnetic Resonance Imaging) brain scans could generally match electrical activity in the brain to the basic shape of a picture that someone was looking at. Like cells anywhere else in your body, active neurons use oxygen. Blood brings oxygen to the neurons, and the more active a neuron is, the more oxygen it will consume. The more active a region of the brain, the more active its neurons, and in turn, the more blood will travel to that region. And by using fMRI, scientists can visualize which parts of the brain receive more oxygen- rich blood--and therefore, which parts are working to process information. An fMRI machine is a device that scans the brain and measures changes in blood flow to the brain. The technology shows researchers how brain activity changes when a person thinks, looks at something, or carries out an activity like speaking or reading. By highlighting the areas of the brain at work when a person looks at different images, fMRI may help scientists determine specific patterns of brain activity associated with different kinds of images. The California researchers tested brain activity by having two volunteers view hundreds of pictures of everyday objects, like people, animals, and fruits. The scientists used an fMRI machine to record the volunteers'' brain activity with each photograph they looked at. Different objects caused different regions of the volunteers'' brains to light up on the scan, indicating activity. The scientists used this information to build a model to predict how the brain might respond to any image the eyes see. In a second test, the scientists asked the volunteers to look at 120 new pictures. Like before, their brains were scanned every time they looked at a new image. This time, the scientists used their model to match the fMRI scans to the image. For example, if a scan in the second test showed the same pattern of brain activity that was strongly, related to pictures of apples in the first test, their model would have predicted the volunteers were looking at apples.
参考答案： C
答案解析： Neurons in the brain.
1What is responsible for processing the information sent by your eyes?
参考答案： D
答案解析： fMRI helps scientists to discover how the brain develops intelligently.
2Which of the following statements is NOT meant by the writer?
参考答案： A
答案解析： marking the parts of the brain that are processing information
3"Highlighting the areas of the brain at work" means
参考答案： B
答案解析： Two volunteers.
4What did the researchers experiment on?
参考答案： B
答案解析： Your Thoughts Can Be Scanned.
5Which of the following can be the best replacement of the title?
参考答案： D
答案解析： Landslides.
6What does "Such natural disasters" in the first paragraph refer to?
参考答案： D
答案解析： All of the above.
7Which of the following statements is true of landslides?
参考答案： C
答案解析： Because the common methods .can cause false alarms.
8Why do researchers develop a new device to monitor signs of landsides?
参考答案： B
答案解析： Evidences
9According to the context, what does the word "positives" in the fifth paragraph mean?
