问题 单项选择题

在无功功率不足的电力系统中,首先应采取的措施是( )。

A.(A) 改变变压器的变比

B.(B) 采用无功补偿装置补偿无功的缺额

C.(C) 增加发电机的有功出力

D.(D) 调节发电机励磁电流

答案

参考答案:B

阅读理解

阅读短文,根据要求完成下面各小题。

     3. For those of us who are studying at school, the time of exams is very stressful and difficult. Some

people find exam times so bad that they become ill, because they are afraid of failing; they are afraid of

letting their parents and family down. If exams are really making you ill or worried, don't hide your feelings.

Talk to someone about it. Maybe you can speak to a friend, or someone in your family, or teachers at your

place of study. If one person doesn't help you, ask someone else.

     How to get through exams? Here are some advice:

     Ask a teacher or tutor about how to review your lessons, and exam skills-how to work when you are in

an exam.

     Take short rests during your time of work. If your mind is tired, it will not remember well.

     Plan your work: study at times when you know you will work at your best.

     Get enough sleep, and eat healthy food.

     You need exercise to work well. Walk, run, play sport-whatever you enjoy.

     Stop thinking about the future and failing.

     If you feel ill, talk to someone about your worries. But don't be too relaxed! 4. Some stress over exams

makes you work hard for them.

     If it upsets you to talk to your friends about an exam when it is finished, don't do it! In fact, don't even

think about the exam you have finished. What is done is done. You cannot change what you have written!

     To this advice, we could add:

     If you are studying in the evening, don't go straight to bed. Your mind will still be "going round and round"

-thinking too much. Do something else, maybe walk or get exercise. Choose something that will relax you,

and make you think of other things.

(一)根据短文内容简要回答问题。

1. Why do some students hate exams?

    ______________________________________________________________________

2. What should you do if the exam upsets you when it is finished?

    ______________________________________________________________________

(二)将短文中划线的句子译成汉语。

3. ______________________________________________________________________

4. ______________________________________________________________________

(三)请给短文拟一个适当的标题。

5. ______________________________________________________________________

单项选择题 B1型题