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问题 单项选择题

在了解一个人时，人们可能被这个人的某种突出特点所吸引，以至忽视了这个人的其他特点和品质，这种现象被称为( )。

A．投射作用

B．刻板印象

C．晕轮效应

D．第一印象

答案

参考答案：C

解析： 投射作用是指知觉者把知觉对象假想成和自己一样；刻板印象是指对于某一类事物产生一种比较固定的看法；晕轮效应是指了解一个人时，可能被这个人的某种突出特点所吸引，以致忽视了这个人的其他特点和品质；第一印象是指在最初的接触中给别人留下的印象。选项C符合题意；其余选项不符合题意。

填空题

写出下列反应方程式，并在后面括号中注明反应类型

（1）电解水______

（2）铁丝在氧气中燃烧______

（3）用氯酸钾制氧气______．
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填空题

World Water Shortage


A new study warns that about thirty percent of the world’s people may not have enough water by the year 2025.
A private American organization called (1) Action International did the new study. It says (2) than three-hundred-thirty-five-million people (3) enough water now. The people live in twenty-eight (4) . Most of the countries are in Africa or the (5) East.
P-A-I researcher Robert Engelman says (6) the year 2025, about three-thousand-million people (7) lack water. At least 18 more countries are (8) to have severe water problems. The demand (9) water keeps increasing. Yet the amount of water on Earth (10) the same.
Mr. Engelman says the population in countries that lack water is (11) faster than in other parts of the world. He says (12) growth in these countries will continue to (13) .
The report says lack of water in the future may (14) in several problems. It may increase health (15) . Lack of water often means drinking (16) not safe. Mr. Engelman says there are problems (17) over the world because of diseases, such as cholera, (18) are carried in water. Lack of water may also result (19) more international conflict. Countries may have to (20) for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.
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