题目内容

What was the reaction of the sea animals in the sound tests？

A. They were frightened and distressed.
B. They swam away when the speaker was turned on.
C. They swam closer to" examine" the speaker when it was turned off.
D. They didn't seem to be frightened and kept swimming near the speaker.

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What was the reason that made the experiment nearly cancel？

A. The loudness of the sound waves.
B. The fear of sea animals.
C. The fear of the confusion and harm caused by sound waves.
D. The noise of the experiment.

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听力原文： American scientists are developing maps that can identify areas of future flooding. The maps also may help scientists estimate the possibility of extremely dry weather and severe storms.
Tom Jackson of the United States Department of Agriculture prepared the maps after the April flood. He used in- formation provided by satellites in Earth orbit. The maps are produced from dish receivers on the satellites. Each dish receiver measures the wetness of the soil by capturing the natural release of microwave radiation from the soil. The receivers turn rapidly. This provides complete coverage of each area the satellite passes over.
Mr. Jackson and other scientists have tested Aqua's equipment in airplanes and satellites flying over several states. The scientists use the tests to develop ways to change the information gathered into maps.
Mr. Jackson now plans to compare the microwave dish receiver findings with information from tests on Earth's soil, He will use instruments at Agricultural Research Service centers in 4 states. He also will study information pro- vided by forty ground observation centers across the country.
Why are American scientists developing these maps？

A. To estimate the extreme weather.
B. To develop the satellite technology.
C. To improve agricultural output.
D. To learn how to change information to maps more efficiently.

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According to this passage, why the farming activities can affect the animals？

A. By fuming them farming.
By affecting the quality of soil.
C. By adding chemicals and polluting the waterways.
D. By affecting the environments they live in.

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【28】

As if
B. Even though
C. Just as
D. Although

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What was the reaction of the sea animals in the sound tests？

A. They were frightened and distressed. B. They swam away when the speaker was turned on. C. They swam closer to" examine" the speaker when it was turned off. D. They didn't seem to be frightened and kept swimming near the speaker.

What was the reason that made the experiment nearly cancel？

According to this passage, why the farming activities can affect the animals？

【28】

A. They were frightened and distressed.
B. They swam away when the speaker was turned on.
C. They swam closer to" examine" the speaker when it was turned off.
D. They didn't seem to be frightened and kept swimming near the speaker.