问题 单项选择题

在无法获得项目建设前的生态质量背景资料时,应首选()作为背景资料进行类比分析。

A.当地长期科学观测累积的数据资料

B.同一气候带类似生态系统类型的资料

C.全球按气候带和生态系统类型的统计资料

D.当地地方志记载的有关资料

答案

参考答案:A

选择题
阅读理解

In western countries, more and more foods have additives in them. What are additives? Additives are chemicals which are put into foods to give them color and taste, to stop them going bad and so on. But doctors say that some additives can be very bad for our health.

Now let’s look at how additives can be bad for our health. For example, a little English girl called Sally Jones is two years old and quite ordinary (普通的). But when she was younger, she never went to sleep at night. She never got tired. Her parents were very worried. Finally, Sally’s parents took her to a special doctor.

The doctor said that she must never eat food with additives in it. He was sure that the additives had a very bad effect on her body, and made her too active. He was quite correct. As soon as Sally started to eat foods with no additives, she began to sleep well at night.

Now she is the same as other little girls, except that she can’t eat many foods that other children love, such as ice-creams, because they have additives in them.

根据短文内容,回答下列问题。

小题1:What’s the Chinese meaning of the word “additive”?

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小题2:What are the functions (功能) of the additives?

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小题3:Did Sally like sleeping at night before she went to see the doctor?

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小题4:What happened to Sally when she stopped eating the foods with additives?

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小题5:Why can’t Sally eat ice-creams?