2015中考英語閱讀理解解題技巧及配套試題

　　六

　　Have you ever seen a greenhouse? Most greenhouses look like a small glass house.

　　Greenhouses are used to grow plants，especially in winter.Greenhouses work by trapping heat from the sun，the glass panels(板) of the greenhouse let light in，but keep heat from escaping.This causes the greenhouse to heat up，much like the inside of the parked in sunlight，and keeps the plants warm enough to live in winter.

　　The earth's atmosphere(大氣) is all around us.It is the air that we breathe.Greenhouse gases in the atmosphere behave much like the glass panels in a greenhouse.Sunlight enters the Earth's atmosphere，passing through the blanket of greenhouse gases.As it reaches the Earth's surface，land，water，and biosphere(生物圈)，they take up the sunlight's energy.Once the heat is taken up，this energy is sent back into the atmosphere.Some of the energy passes back into space，but much of it remains trapped in the atmosphere by the greenhouse gases，causing our world to heat up.

　　The greenhouse effect is important.Without the greenhouse effect，the Earth would not be warm enough for humans to live.But if the greenhouse effect becomes stronger，it could make the earth warmer than usual.Even a little extra warming may bring problems to humans，plants，and animals.

　　根據(jù)短文內(nèi)容，回答下列問題。

　　1.What are greenhouses used for?

　　________________________________________________________

　　2.Why is the temperature in the greenhouse higher than that outside?

　　________________________________________________________

　　3.What behaves much like the glass panels in a greenhouse?

　　________________________________________________________

　　4.If we didn't have the greenhouse effect，what would happen?

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　　5.What does the article mainly tell us?

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　　答案：

　　1.They are used for growing plants.答案來自第二段的第一句。

　　2.根據(jù)短文第二段中溫室效應(yīng)的工作原理可知，答案是 Because the glass panels of the greenhouse can let light in，and keep heat from escaping.

　　3.根據(jù)短文第三段的“much of it remains trapped in the atmosphere by the greenhouse gases”可知，溫室塑料板的作用像空中大氣層的作用，即答案是 Greenhouse gases in the atmosphere.

　　4.根據(jù)最后一段內(nèi)容可知，如果沒有大氣層的溫室效應(yīng)，人類就不能生存，即答案為 Humans couldn't live because the earth would not be warm enough.

　　5.根據(jù)全文內(nèi)容可知，主要是溫室效應(yīng)及對人類的影響，所以答案為 It mainly tells us what the greenhouse effect is and its influence.

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