单选题If you are worried about things and are under a lot of stress at work or school, then you are probably not sleeping well. Worry can keep you awake, tossing and 1 in bed until the early hours of the morning when you eventually 2 asleep. When you wake up, you don"t feel 3 , but tired and worn out and 4 to face a new day. Dr. Henry Winkle, in a recent newspaper article 5 Stress and Sleep, 6 that stress and lack of sleep are directly 7 . Dr. Winkle says, "the more we worry, the 8 we sleep, the more we are unable to deal with 9 . " "If we can find a way to get a good night"s sleep," he 10 , "we can often find the 11 to deal with what"s worrying us. " So, what is a good night"s sleep? Research shows that the amount of sleep which people need in order to keep healthy 12 a lot. Seven hours is about the average amount, 13 strangely enough, sleeping longer often gives you a headache 14 of making you feel more refreshed. Dr. Winkle believes that preparing for sleeping is important. People who work late should try to give themselves a short 15 and do something restful before going to bed. This could be watching TV or listening to music. Doing some exercise 16 in the day should help you to feel physically as well as 17 tired. A bedtime drink can also help, but coffee or tea should be avoided as they contain caffeine (咖啡因) and will keep you 18 . "When you put the light 19 , " Dr. Winkle says, "concentrate on relaxing your muscles. Working slowly up from your feet, and you"ll be asleep 20 you know it. "

单选题 Questions 19 ～ 22 are based on the following conversation.

单选题The writer's attitude towards the campaign is ______.

单选题There are robots all around us. Some do very complicated jobs like flying airplanes and driving subway trains. And some do one simple job. When an automatic washing machine is switched on, water pours in. The machine waits until the water is hot before washing the clothes. It does this by "feedback". Information about what is happening is "fed back" into the robot to tell it what to do next. Our eyes, ears and other senses are our feedback. They tell us what is going on around us. So robots are like people in two ways. They work and they have feedback. But very few robots look like people. Many are hidden away. Robots control the temperature of our houses. We can set the controls to the temperature we want. The robot does the rest. Its feedback usually comes from a thermostat. One kind of thermostat is a strip of metal which bends when it gets hot. At the right temperature, it bends just enough to work a switch. This turns off the heat. As the air around it cools, the metal straightens, and this turns the heat on again. In some ways robots are better than people. They work quickly, but do not make mistakes. They do not get bored doing the same job over and over again. And they never get tired. So robots are very useful in factories. They can be taught to do many different jobs. First their electronic brains must be shown how the job is done. A person moves the robot's "arms" and "hands" through each part of the job. The robot's brain remembers each move. When the robot is put to work on its own, its brain controls the rods, wheels and motors which move its arm. When the robot is needed for a new job, its electronic memory is "wiped clean". Then it is taught how to do its new task. If the robot's hand stops working, or if something gets in the way, it cannot do the next part of the job. So it stops and signals for help. Then a human engineer attends to the fault. Robots are also used for doing jobs which are dangerous. They can move objects which are too hot or too heavy for people to handle. They can work in places which are too hot or too cold for people. And they are not affected by poisonous gases. The most "intelligent" robots can move and see. Their eyes are cameras. Their metal fingers can feel shapes and even find out how hot and cold objects are. These robots have computer brains, linked to their eyes and fingers, which control their actions.

单选题What will the speakers do tomorrow evening?

单选题[此试题无题干]

单选题Whatdoesthewomanimply?

单选题Wheredoesthisconversationmostprobablytakeplace?

单选题Howdoesthemanfeelabouthisjob?

单选题 {{I}} Questions 19 to 22 are based on a conversation on free samples.{{/I}}

单选题What caused the blackout in July 1977?

单选题What does the man want to do?

单选题—There isn't ______ water here. Could you get ______ for me? —All right. [A] some, any [B] any, any [C] any, some

单选题Under what circumstances is ground transport to the airport free?

单选题{{B}}Part A{{/B}} {{I}}You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE. Now look at Question 1.{{/I}}