问题 选择题

如图,小试管的直径略小于大试管的直径,现在大试管内装满水,然后套入小试管(无水),然后将装置倒立,这时我们观察到的现象是(  )

A.小试管被流水带出大试管

B.小试管在大试管内上升

C.小试管内会有部分水进入

D.小试管内也会充满水

答案

装置倒置后,大试管中的水由于重力的作用,会流下来,小试管上方的空间的压强减小,小于外界大气压,小试管就在大气压的作用下,被压着向上运动.所以会看到小试管在大试管中上升.

综上分析,故此题选B.

选择题
完形填空

阅读表达(共5小题;每小题3分,共15分)

While it is impossible to live completely free of stress, it is possible to prevent stress as well as reduce its effect when it can’t be avoided. The US Department of Health and Human Services offers the following suggestions for ways to deal with stress.

• Try physical activity

When you are nervous, angry or upset, try releasing the pressure through exercise or physical activity. Running, walking, playing tennis, or working in your garden are just some of the activities you might try.

• Take care of yourself

You should make every effort to eat well and get enough rest. If you easily get angry and cannot sleep well enough, or if you’re not eating properly, it will be more likely that you will fall into stressful situations. If stress repeatedly keeps you from sleeping, you should consult a doctor.

• Make time for yourself

Schedule time for both work and entertainment. Don’t forget, play can be just as important to your overall well-being as work. You need a break from your daily routine to just relax and have fun. Go window-shopping or work on a hobby. Allow yourself at least a half hour each day to do something you enjoy.

• Make a list of things to do

Stress can result from disorganization and a feeling that “there’s so much to do, and not enough time”. Trying to take care of everything at once can be too much for you and as a result, you may not achieve anything. Instead, make a list of everything you have to do, then ______________________, checking off each task as it is completed. Set out to do the most important tasks first.

小题1: What is the best title of the passage? (Please answer within 10 words.)

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小题2: Which sentence in the passage can be replaced by the following one?

You might feel stressed as a result of bad temper, poor quality of sleep or diet.

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小题3: Please fill in the blank in the last paragraph with proper words or phrases to complete the sentence. (Please answer within 10 words.)

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小题4: Which of the suggestions do you think is the best for you? Why? (Please answer within 30 words.)

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小题5: Translate the underlined sentence in the first paragraph into Chinese.

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