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3.已知汽车尾气无害化处理反应为2NO(g)+2CO(g)N2(g)+2CO2(g)。下列说法不正确的是

A.升高温度可使该反应的逆反应速率降低

B.使用高效催化剂可有效提高正反应速率

C.反应达到平衡后,NO的反应速率保持恒定

D.单位时间内消耗CO和CO2的物质的量相等时,反应达到平衡

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2.下列叙述正确的是

A.将CO2通入BaCl2溶液中至饱和,无沉淀产生;再通人SO2,产生沉淀

B.在稀硫酸中加入铜粉,铜粉不溶解;再加入Cu(NO3)2固体,铜粉仍不溶解

C.向AlCl3溶液中滴加氨水,产生白色沉淀;再加入过量NaHSO4溶液,沉淀消失

D.纯锌与稀硫酸反应产生氢气的速率较慢;再加入少量CuSO4固体,速率不改变

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1.下列叙述正确的是

A.电能是二次能源           B. 水力是二次能源

C.天然气是二次能源          D. 水煤气是一次能源

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人们对于学生网上交友持不同意见。请你用英语写一篇关于学生网上交友的短文,介绍人们的不同观点,并表达自己的看法。

 赞成的理由
反对的理由
你的看法
广交朋友
可自由表达思想
利于外语学习
浪费时间
影响学习
可能上当受骗

注意:1、文章必须包括表中的全部内容。   2、词数为100左右

3、参考词汇:网络朋友on-line friend(s)  上当受骗to be cheated

                                     

 

                                     

 

                                      

 

                                     

 

                                     

 

                                      

 

                                     

 

                                     

 

                                     

 

                                      

 

                                     

 

                                     

 

                                      

 

                                     

 

                                     

 

 

 

2009~2010学年度第二学期期中试卷

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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文,文中共有10处语言错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词;删除:把多余的词用斜线(\)划掉;修改:在错的词下面画一横线,并在该词下面写出修改后的词。

注意:1、每处错误及其修改均仅限一词;2、只允许修改10处,多者从第11处起不计分。

I first met Li Meng at a friend birthday party five years ago. Then I invited Li Meng

over in my place. We listen to my CDs together and soon became good friends.

Three years ago, Li Meng’s parents invited I to spend two wonderful week in

Qingdao with them during the summer holiday. Li Meng and I loved walking along

the beautifully beaches there. Last year I was ill but had to stay in hospital for a week.

Li Meng came see me every day. Then, her father has changed jobs and they moved

to another city. Since then we haven’t see each other much, but we’ve kept

writing to each other.

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In the clinic, I asked if Michael could be retested, so the specialist tested him again. To my

   36  , it was the same score.

Later that evening, I   37   told Frank what I had learned that day. After talking it over, we agreed that we knew our   38   much better than an IQ test. We   39   that Michael’s score must have been a   40   and we should treat him   41   as usual.

We moved to Indiana in 1962, and Michael studied at Concordia High School in the same year. He got   42   grades in the school, especially   43   biology and chemistry, which was a great comfort.

Michael   44   Indiana University in 1965 as a premedical student. Soon afterwards, his teacher permitted him to take more courses than   45  . In 1968, he was accepted by the School of medicine, Yale University.

On graduation day in 1972, Frank and I   46   the ceremony at Yale. After the ceremony, we told Michael about the   47   IQ score he got when he was six. Since that day, Michael sometimes would look at us and say   48  . “My dear mom and dad never told me that I couldn’t be a doctor, not until after I graduated from medical school! ” It is his special way of thanking us for the    49   we had in him.

Interestingly, Michael then   50   another IQ test. We went to the same clinic where he had   51   the test eighteen years before. This time Michael scored 126, an increase of 36 points. A result like that was supposed to be    52  .

Children often do as   53   as what adults, particularly parents and teachers,  54 

of them. That is, tell a child he is “  55  ”,  and he may play the role of a foolish child.

36.  A. joy             B. surprise          C. dislike           D. disappointment

37.  A. tearfully         B. fearfully          C. cheerfully        D. hopefully

38.  A. student         B. son             C. friend           D. doctor

39.  A. argued         B. realized          C. decided     D. understood

40.  A. joke            B. mistake          C. warning     D. wonder

41.  A. specially           B. strictly               C. naturally     D. carefully

42.  A. poor               B. good            C. average     D. standard

43.  A. in              B. about              C. of           D. for

44.  A. visited          B. chose               C. passed          D. entered

45.  A. allowed        B. described           C. required     D. offered

46.  A. missed          B. held            C. delayed     D. attended

47.  A. high            B. same            C. low         D. different

48.  A. curiously        B. eagerly          C. calmly          D. jokingly

49.  A. faith            B. interest          C. pride           D. delight

50.  A. looked for          B. asked for         C. waited for       D. prepared for

51.  A. received           B. accepted           C. organized       D. discussed

52.  A. imperfect           B. impossible           C. uncertain        D. unsatisfactory

53.  A. honestly        B. much               C. well         D. bravely

54.  A. hear               B. learn            C. expect          D. speak

55.  A. wise            B. rude            C. shy          D. stupid

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