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问题 问答题

化学与生活息息相关，请你用化学知识回答以下生活中的问题．

（1）碘酒是家庭常备药，碘酒中的溶剂是_________（写化学式）

（2）炎热的夏季自行车车胎容易爆裂，原因是_______________；

（3）铝制品抗腐蚀性能很好，原理是__________________（用化学方程式表示）

（4）现有①黄瓜②豆腐③馒头④鸡蛋，其中富含蛋白质的是_______（填序号）

答案

C2H5OH；分子间的距离随温度升高而增大；4Al+3O2=2Al2O3；②④

（1）酒精的化学式是C2H5OH

（2）炎热的夏季自行车车胎容易爆裂，原因是分子间的距离随温度升高而增大

（3）在通常情况下，铝能和氧气反应生成氧化铝，反应的化学方程式为：4Al+3O2=2Al2O3

（4）豆腐、鸡蛋中含有丰富的蛋白质

多项选择题

下列项目中符合填制会计凭证要求的有（）。

A.汉字大小写金额必须相符且填写规范

B.阿拉伯数字连笔书写

C.阿拉伯数字前面的人民币符号写为“￥”

D.大写金额有分的，分字后面不写“整”或“正”字
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单项选择题

What’s your earliest childhood memory Can you remember learning to walk Or talk The first time you heard thunder or watched a television program Adults seldom (1) events much earlier than the year or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.

A variety of explanations have been (4) by psychologists for this "childhood amnesia". One argues that the hippo-campus; the region of the brain which is (5) for forming memories, does not mature until about the age of two. But the most popular theory (6) that, since adults don’t think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) one event follows (9) as in a novel or film. But when they search through their mental (10) for early childhood memories to add to this verbal life story, they don’t find any that fit the (11) . It’s like trying to find a Chinese word in an English dictionary.

Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues that there simply aren’t any early childhood memories to (13) . According to Dr. Simms, children need to learn to use someone else’s spoken description of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long-term memories. In other (16) , children have to talk about their experiences and hear others talk about (17) --Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Oceanz Park. Without this (19) reinforcement, says Dr. Simms, children cannot form (20) memories of their personal experiences.

Notes: childhood amnesia 儿童失忆症。

（12）（）

A.emphasis

B.assertion

C.explanation

D.assumption
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