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
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:
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
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
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
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.
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.__________
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com