Passage Two

　　At the University of Kansas art museum, scientists tested the effect of different colored walls on two groups of visitors to an exhibit of paintings. For the first group the room was painted white; for the second, dark brown. Movement of each group was followed by an electrical equipment under the carpet. The experiment showed that those who entered the dark brown walked more quickly, covered more area, and spent less time in the room than people in the white one. Dark brown made people more active, but the activity ended sooner. Not only the choice of colors but also the general appearance of a room affects those inside. Another experiment presented people with photographs of faces whose energy was to be commented. Three groups of people were used; each was shown the same photos, but each group was in an ordinary room—a nice office. The third was in a tastefully designed living room with carpeting. Results showed that the people in the beautiful room tend to give higher marks to the faces than those in the ugly room did. Other studies that students do better on tests taken in comfortable room than in ordinary-looking or ugly rooms.

　　66. Which of the following is the best expression of the main idea of this passage?

　　People in beautiful rooms tend to give higher marks to photos of faces than people in ugly rooms

　　The color and general appearance of a room have a deeper effect on the behavior of the people in it

　　The University of Kansas has studied the effects of the color of room on people’s behavior

　　Beautifully furnished, light-coloured rooms make people more comfortable than ugly, dark rooms

　　67. According to the passage, we may conclude that the whiter a room is ________.

　　A. the longer people like to stay in it B. the sooner people in it will leave

　　C. the more active people in it will become D. the more excited people

　　68. What is referred to as the “general appearance” in this passage is ________.

　　how many broad windows a room has, through which sunlight might come in

　　the size of a room

　　whether there are beautiful walls in a room

　　what the room looks like

　　69. This passage provides us with _______.

　　A. a piece of scientific information B. a normal lesson

　　C. an interesting test D. a piece of news

　　70. At least how many tests were carried out by the scientists referred to in this passage?

　　A. Three B. Two C. Only one D. No one knows

　　Passage Three

　　The water we drink and use is running short in the world. We all have to learn how to stop wasting our limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done in this field.

　　Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying factory. There it can be filtered and treated with chemicals so that it can be used again, just as it were fresh from a spring.

　　But even if every large city purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we’d have to do to make use of the seawater on earth is to get rid of the salt. This process is called desalinization, and it is already in use in many parts of the world.

　　71. The way to stop wasting our limited water is to ________.

　　A. do experiments with water B. purify the used water and reuse it

　　C. use fresh water once again D. make use of seawater

　　72. The following tells us how to reuse the used water. Which is the right order of the passage?

　　A. to have the used water filtered B. to put chemicals in it

　　C. to pipe it to the users D. to pipe the used water to be purified to a factory

　　73. There wouldn’t be enough water for us if we didn’t _________.

　　A. turn to the oceans for more water B. reuse used water and make use of seawater

　　C. desalt seawater D. take steps to reuse all water on earth

　　74. The would “it” in the last sentence refers to _______.

　　A. seawater B. purified water

　　C. the process of getting rid of the salt in seawater

　　D. the process of collecting salt from the sea oceans

　　75. The best title for the passage is “_______”.

　　A. How to Reuse Water

　　B. Two Solutions to the Problem of Water Shortage

　　C. Stop Wasting Our Limited Water

　　D. How to Make Use of Seawater

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