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5、下列关于有机物说法正确的是(   )

A.乙醇、乙烷和乙酸都可以与钠反应生成氢气  B. 石油分馏可获得乙酸、甲烷、苯等

C.苯和乙烯都可以使溴的四氯化碳溶液褪色

D.上海世博会永久性标志建筑之-上海世博轴(下图)的上层巨型膜结构ETFE              

 

由单体乙烯和四氟乙烯加聚而成

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4.下列表示物质的化学用语正确的是(   )

A .甲基的电子式:        B.硝基苯的结构简式:

C.葡萄糖的实验式:CH2O     D.甲烷分子的比例模型:

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3.同温同压下,已知下列各反应为放热反应,下列各热化学方程式中△H最小的是(   )

A.2A (l) + B (l) = 2C (g) △H1      B.2A (g) + B (g) = 2C(g) △H2

C.2A (g) + B (g)= 2C (l)  △H3     D.2A (l)+ B (l) = 2C(l)  △H4

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2.下列物质不属于高分子化合物的是(    )

A、羊毛      B.蚕丝    C.纤维素    D.蔗糖

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1.下列说法正确的是(   )

  A.需要加热的化学反应都是吸热反应    B.中和反应都是放热反应

C.原电池是将电能转化为化学能的一种装置

D.水力发电是将化学能转化为电能的过程

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第二节   书面表达(满分25分)

    你班学生最近就中学生是否应该进行军训这一话题展开了讨论。请根据下表写一篇100字左右的英语短文投稿给学校广播站。

反对意见
赞成意见
你的意见
1.九月份重庆天气仍很炎热;
2.学生身体单薄,无法坚持大运动量的训练。
1.军训是国防教育的重要内容;
2.是锻炼学生个人素质的最佳方式。
……

注意:

1.短文的开头已为你写好,不计入总词数。

2.文章中不能出现真实的个人和学校信息,否则按零分计。

3.参考词汇:

    军事训练-military training; 国防教育-the education of national defense

    There has been a heated discussion about whether we high school students should take the military training in my class.                             

                                       

                                       

                                         

                                         

                                       

                                       

                                       

                                       

                                         

                                         

                                       

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第一节:短文改错(共10小题;每小题1分,满分10分)

    此行多一个词:把多余的词用斜线( \ )划掉,在该行右边横线上写出该词,并也用斜线划掉。

    此行缺一个词:在缺词处加一个漏字符号( ∧ ),在该行右边横线上写出该加的词。

    此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

    注意:请在答题卡上作答。

A terrible storm took place in a Friday night.The wind was so       76.__________

strong that many tree were brought down.It was eleven o’clock.      77.__________

Li Ming was still not back but his parents were very anxious             78.__________

about him.Half an hour after, the wind stopped, but it was still          79.__________

raining hardly.Li Ming’s parents were about to look for him           80.__________

when he come home.Li Ming explained that the storm pushed          81.__________

over big trees as well as electricity poles, blocked the roads and          82.__________

that the bridge had washed away by the floods.Therefore, they          83.__________

had to find another way back.What was even more worse, one of        84.__________

his classmates had a arm hurt, so they took him to the hospital.         85.__________

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