【名词&注释】
亚硝酸钠(sodium nitrite)、棉纤维(cotton fiber)、氯化铵(ammonium chloride)、工业园区(industrial park)、英雄形象(hero image)、可燃性(flammability)、以少胜多、化合反应(combination reaction)、秦末农民战争、金戈铁马
[单选题]下列常见盐在生产、生活中的用途不合理的是
A. 用亚硝酸钠腌制食品
B. 用硫酸铜精炼铜
C. 用纯碱消耗面粉发酵生成的酸
D. 用食盐生产烧碱
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举一反三：
[单选题]以下是人体几种体液的pH，其中呈酸性的是
A. 胰液7.5~8.0
B. 胃液0.9~1.5
C. 血浆7.35~7.45
D. 胆汁7.1~7.3
[单选题]Ifyouliveinacoldplace,youshouldprepare_______.
A. somewarmclothesandbeddingsupplies
B. somehotwater
C. somebatteries
D. someflashlights
[单选题]下列对该词的理解不恰当的是（ ）
A. “醉里挑灯看剑，梦回吹角连营”表现了好友陈同甫对现实的不满和对当年金戈铁马的疆场生活的留恋怀念。
B. “马作的卢飞快，弓如霹雳弦惊”明写战马和武器，实际表现战士冲锋陷阵的英雄形象。
C. “了却君王天下事，赢得生前身后名”是词人对自己理想的诉说，是其一生追求的概括。
D. 全词中虚幻与现实的对比十分强烈，抒发了作者壮志难酬的悲愤心情，极其悲壮。
[单选题]氧气是我们身边常见的物质，以下有关氧气的叙述正确的是
A. 物质与氧气发生的反应都是氧化反应
B. 鱼、虾等能在水中生存，是由于氧气易溶于水
C. 氧气具有可燃性
D. 物质在氧气中燃烧的反应一定是化合反应(combination reaction)
[单选题]BJack is a famous writer now．But he said he was not a good student when he was young．He was often late for class and didn’t like doing his homework． Sometimes he slept in class while the teacher was teaching．He didn't understand much, but he always thought he under-stood everything．．
A. John is fifteen now and how old is his brother?" Jack answered, "That's easy． His brother is twice as old as John, so he is now thirty． "
B. see our eyes are in front of our ears?"
C. The third time, the teacher in a biology class asked, "Why can fish swim in the water?" "But, Miss White," said Jack quickly, "don't you know fish can-t walk on land?"
D. Jack was not ________． when he was young．
E. strong
F. lazy
G. clever
H. well
[单选题]对以下实验的实验现象描述，正确的是（ ）
A. 硫在空气中燃烧发出明亮的蓝紫色火焰
B. 氯化铵固体和熟石灰混合研磨，生成无色无味的气体
C. 分别点燃一小块棉纤维和羊毛纤维，都产生了烧焦羽毛的气味
D. 把带有火星的木条伸入盛有氧气的集气瓶中，木条复燃
[单选题]秦末农民战争中，著名的以少胜多的战役是
A. 长平之战
B. 巨鹿之战
C. 城濮之战
D. 马陵之战
[单选题]12．
A. speak
B. tell
C. say
D. call
[单选题]生态工业的重要载体是（ ）。
A. 生态工业园区
B. 生态工业链
C. 生态工业物质循环
D. 生态工业可持续发展
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