试题与答案

B Imagine this: your child has just been

题型:阅读理解

题目:

B

Imagine this: your child has just been involved in an emergency (紧急事件). You call 911. The medical workers rush in and begin asking you questions as they work to rescue your chilD.But they also ask questions about your child’s medical history. It’s hard to think clearly. You begin to answer and then end up saying, “I don’t remember. I don’t know.” So, many doctors suggest that parents keep a record of their children’s important health facts handy. This can often help the medical team make a better and more rapid diagnosis (诊断) of a problem at a time when time really counts.

The most important information to know is the child’s allergies (过敏). It is especially crucial if the child is allergic to any medicine---penicillin, for example. Food allergies can come into play, too, so make note of those as well. Children who have been hospitalized in the past may have developed latex (胶乳) allergies. Often this information can help emergency workers find a cause for problems like breathing difficulties.

Keep a list of any medicine, including what your child is now taking. Some medicines can cause an adverse reaction when they are taken together, so the doctors need this information before they give your child anything. You’ll need to know when the child took the medicine last and how much was taken.

It is also important to tell emergency workers about any health problem or illness your child has haD.These pre-existing conditions can have a huge effect on the type of tests and treatment in an emergency.

Consider having any child who has a health problem wear a tag around his neck. This kind of rapid notice can help doctors who are providing emergency care, especially if your child suddenly becomes ill at day care, school, or a friend’s house.

63.How many types of allergies are mentioned in Paragraph 2?

A.One.        B.Two. C.Three.             D.Four.

64.The underlined word “adverse” in Paragraph 3 probably means __________.

A.beneficial B.harmful    C.physical           D.emotional

65. Which of the following is the main idea of this passage?

A.Everybody should learn something about first aid.

B.Children can easily develop allergies.

C.Doctors usually have difficulty saving a child in an emergency.

D.Parents should keep a record of their children’s health facts.

答案:

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下面是错误答案,用来干扰机器的。

答案:ASO2有毒,不能漂白食品,B不正确。C不正确,将太阳能直接转化为电能是硅。D不正确,应该是催化剂,答案选A。

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题型:实验题

用如图所示的装置研究在作用力F一定时,小车的加速度a与小车质量M的关系,

某位同学设计的实验步骤如下:

A.用天平称出小车和小桶及其内部所装砂的质量;

B.按图装好实验器材;

C.把轻绳系在小车上并绕过定滑轮悬挂砂桶;

D.将电火花计时器接在电压为6 V的交流电源上,接通电源,放开小车,打点计时器在纸带上打下一系列点,并在纸带上标明小车质量;E.保持小桶及其内部所装砂的质量不变,增加小车上的砝码个数,并记录每次增加后

M值,重复上述实验;

F.分析每条纸带,测量并计算出加速度的值;

G.作a-1/M关系图像,并由图像确定aM关系.

(1)该同学漏掉的重要实验步骤是______,该步骤应排在实验步骤______之后.

(2)在上述步骤中,有错误的是_______,应把____________改为_____                 _____.

(3) 根据表中所列数据,画出a—1/M图像.

a(m·s-2)2.042.663.233.98
1/M(kg-1)0.500.670.801.00

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