试题与答案

对化学方程式2H2+O2点燃.2H20表示的意义,下列叙述正确的是( ) A.氢

题型:选择题

题目:

对化学方程式2H2+O2

 点燃 
.
 
2H20表示的意义,下列叙述正确的是(  )

A.氢气加氧气等于水

B.在这个反应中,H2、O2和H20的质量比为2:32:18

C.两个氢分子跟一个氧分子在点燃的条件下就等于两个水分子

D.氢气和氧气在点燃的条件下反应生成水

答案:

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答案:C 短语辨析。 A. 分发;施舍 B. 取出;去掉 C. 解决;想出 D. 分发;发表。句意:你看到超市附近正在建设的巨大新建筑吗?——是的。我想不出它想成为什么。不是公寓吗?不是旅馆吗?结合语境...

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题型:阅读理解

B

I believe that it is important to be brought up with a firm belief in the good. I was fortunate in this respect. My parents not only gave me a happy home, but they had me study half a dozen foreign languages and made it possible for me to travel in other countries. This made me more tolerant and helped me to bridge many difficulties in later life.

Soon after I got married, my husband and I left our native Czechoslovakia and went to live in Shanghai, China. Here was a really international city. People of all races and beliefs lived and worked together.

In Shanghai, in 1941, when I was only twenty years old, the doctors discovered that I had diabetes. It was a terrible shock, because diabetes is incurable. But it can be controlled by insulin (胰岛素). Although this drug was not manufactured in China, there were enough stocks of imported insulin available. This enabled me to continue a normal, happy life.

Then bombs fell on Pearl Harbor and the Japanese occupied Shanghai. The import of insulin was cut off. Before long, there was not enough for the diabetics. I was on a starvation diet to keep my insulin requirements as low as possible. Many diabetics had already died, and the situation became desperate. In spite of all this, I never stopped believing that with the help of my husband’s love and care, I would survive.

I continued to teach in Chinese schools. My faith and my husband’s never-ending efforts to get the manufacture of insulin started gave me courage. In his small laboratory the production of insulin was attempted. I served as the human guinea pig(实验品)on which it was tested. I’ll never forget the day when my husband gave me the first injection of the new insulin, which had worked on rabbits. It helped! Can you imagine our happiness and relief?

I received the greatest strength from the deep love and complete understanding between my husband and me. And next to that was the kindness and help of many, many friends of many nationalities. To me, the experience of living in Shanghai during the special times was unforgettable.

After the Second World War, my husband and I sailed to the Untied States, which is also known as a melt pot. Wherever we live, I believe, with faith and love, love between families and friends from different nationalities, we can make it our cherished home.

61. What can we know about the author?

A. She visited China before twenty.        B. She was given an unhappy home.

C. She got married in Czechoslovakia.      D. She could hardly tolerate her parents.

62. As a diabetic, the author could still live normally in 1941 because        .

A. she was able to buy enough insulin         B. she received good medical treatment

C. she was looked after by her husband      D. she was helped by people of different races

63. The underlined word “it” in Paragraph 5 refers to        .

A. a small rabbit    B. an ever lasting effort  C. the new insulin      D. the human guinea pig

64. How does the author feel about her stay in China?

A. Unbearable.       B. Unbelievable.    C. Unfortunate.   D. Unforgettable.

65. We can infer from the text that the author’s husband was        .

A. a doctor            B. a researcher  C. a teacher             D. a sailor    

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