问题 单项选择题

下列说法中错误的是()。

A.生物都是由细胞组成的

B.生物都能生长、生殖和发育

C.生物都能对外界事物的刺激做出反映

D.生物都有新陈代谢作用

答案

参考答案:A

解析: 此题是对有关生物知识的考查。并不是所有的生物都是由细胞构成的,病毒就是一种特殊的生物,它并是不有细胞构成,而是由一个核酸分子(DNA或RNA)与蛋白质构成的非细胞形态的营寄生生活的生命体。生物具有如下特征:能生长、生殖和发育;能对外界事物的刺激做出反映;都有新陈代谢作用。故选A。

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    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 sports-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)将短文中画线的句子译成汉语。

3.__________________________________________________________________

4.__________________________________________________________________

 (三)请给短文拟一个适当的标题。

5.__________________________________________________________________

单项选择题