试题与答案

(7分)X、Y、Z为三种单质,常温下X为金属,Y是液体,Z是无色气体。其反应关系

题型:推断题

题目:

(7分)X、Y、Z为三种单质,常温下X为金属,Y是液体,Z是无色气体。其反应关系如下图所示,其中B的溶液显强酸性。请回答下列问题:

(1)根据上述关系,确定X、Z的化学式:X       、Z        

(2)Y元素在周期表中的位置是           

(3)写出A溶于水后加X的离子方程式:                                    

(4)写出C溶液中通入过量氯气的离子方程式:                              

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D解析:比例分摊和代位求偿原则是损失补偿原则的派生原则。只有医疗费用保险适用损失补偿原则,其余均为定额给付的保险。

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题型:阅读理解

In 1995,Oseola McCarty gave a present of $150 000 to the University of Southern Mississippi. She wanted to help poor students. It was a very generous thing to do. But her friends and neighbors were surprised. McCarty was a good woman. She went to church. She was always friendly and helpful. But everyone in her town knew that McCarty was not rich. In fact,she was poor.

How did a poor 86-year-old woman have so much money? Oseola McCarty was born in 1908 in Hattiesburg,Mississippi. She had to leave school when she was eight years old to help her family. She took a job washing clothes. She earned only a few dollars a day. Oseola washed the clothes by hand. Then she hung the clothes to dry. She did this for nearly 80 years. In the 1960s,she bought an automatic washer and dryer. But she gave them away. She did not think they got the clothes clean enough!At that time,many people started to buy their own washers and dryers. McCarty did not have much work, so she started to iron clothes instead.

McCarty never married or had children. Her life was very simple. She went to work and to church. She read her Bible (圣经)。She had a black-and-white television. But she did not watch it very much. It had only one channel.

McCarty saved money all her life and eventually had about $250 000. When she was 86,a lawyer helped her make a will. She left money to the church,her relatives,and the university. McCarty just wanted to help others. She did not think she was a special person. But then people found out about her present to the university. She received many honors (荣誉)。She even flew in an airplane for the first time!Oseola McCarty died in 1999. She was a shy and ordinary woman who became famous.

根据以上短文内容,然后从每题所给的四个选项中选择最佳选项。

小题1:Oseola McCarty gave $150 000 to the University of Southern Mississippi _______.

A.to help the poor students

B.to surprise her friends and neighbors

C.to show her generosity

D.to be a good and rich woman小题2:From the story we know _______.

A.McCarty was born in a poor family near the University of Southern Mississippi

B.everyone was surprised because they thought McCarty had no education

C.washers and dryers brought a change in McCarty‘s life

D.McCarty gave half of her money to the church and her relatives小题3:Which of the following is true?

A.McCarty had to work to help her family after school every day.

B.McCarty learned to read the Bible by herself in the school.

C.McCarty made one third of her money by washing and ironing clothes.

D.McCarty did not have her own family because she had no husband or children.小题4:From which of the following can we tell McCarty lived a simple life?

A.She worked hard all her life.

B.She didn‘t think she was special.

C.She didn‘t have many interests.

D.She had a TV set with many channels.小题5:Which of the following is true?

A.McCarty died at the age of eighty-six.

B.McCarty did the job of washing for more than eighty years.

C.McCarty gave her presents to both universities and churches.

D.McCarty was given many honors because of her good deeds.

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