16.The oldest and most common source(來源) of renewable energy known to man,biomass is one of the most important forms energy production in the United States and elsewhere.Since such a wide variety of biomass materials is everywhere--from trees and grasses to agricultural and city--life wastes--biomass promises to play a continuing role in providing power and heat for millions of people around the world.
According to the Union of Concerned Scientists(UCS),biomass is a kind of renewable energy source that produces no carbon dioxide(二氧化碳),because the energy it contains comes from the sun.When plant matter is burned,it gives off the sun's energy.In this way,biomass serves as a sort of natural battery(電池) for storing the sun's energy.As long as biomass is produced continuously--with only as much grown as is used-the"battery"lasts forever.
According to the Energy Information Administration,biomass has been one of the leading renewable energy sources in the United States for several years running through 2007,making up between 0.5and 0.9percent of the nation's total electricity supply.In 2008--although the numbers aren't all in yet--wind power probably took over first place because of the rapid development of wind farms across the country.
Producing power from biomass helps reduce some 11million tons of carbon dioxide each year.Some homeowners also try to make their own heat by using biomass materials.Such practice may save homeowner's money,but it also produces a lot of pollution.So,the best way is to encourage power plants to use it.
72.Why is biomass considered as"a sort of natural battery"?C.
A.It burns merely plant matter.
B.It keeps producing electricity.
C.It stores the energy from the sun.
D.It produces zero carbon dioxide.
73.We learn from the text that in 2008A.
A.Wind power would be the leader of renewable energy.
B.there was a rapid growth of electricity production
C.biomass might become the main energy source
D.0.5~0.9of power supply came from biomass
74.Why does the author encourage power plants to use biomass?C.
A.To prevent the waste of energy.
B.To increase production safety.
C.To reduce pollution.
D.To save money.
75.Where does the text probably come from?B.
A.A research plan.B.A science magazine
C.A book review.D.A business report.
分析 本文是一篇科技說明文,作者在文章中介紹了生物量的特征、優點以及它在美國能源中的地位,它是一種可再生資源,使用生物量有助于減少每年的二氧化碳排放量,并且能減少污染.
解答 72.C 細節理解題.根據第二段中的because the energy it contains comes from the sun.When plant matter is burned,it gives off the sun's energy.In this way,biomass serves as a sort of natural battery for storing the sun's energy.可知它所含的能量來自太陽,當植物被燃燒時,它會釋放出太陽的能量,因此生物量被認為是一種儲存太陽能的天然電池,故選C.
73.A 推理判斷題.根據第三段中的"In 2008-although the numbers aren't all in yet-wind power probably took over first place because of the rapid development of wind farms across the country."可知2008年風能占居首位,因此可推知風力發電將是可再生能源的領導者,故選A.
74.C 推理判斷題.根據最后一段中的"Some homeowners also try to make their own heat by using biomass materials.Such practice may save homeowners'money,but it also produces a lot of pollution.So,the best way is to encourage power plants to use it."可知一些房主也試圖通過使用生物質材料來制造自己的熱量,但它產生了大量的污染,因此鼓勵發電廠使用生物量是為了減少污染,故選C.
75.B 文章出處題.根據全文內容可知,本文是一篇有關生物量能源的科普類文章.所以,它應該是科學雜志上的文章.故選B.
點評 做閱讀理解時要快速的瀏覽全文,把握文章主旨大意,帶著問題回到原文,尋找細節或概括相應的答案,最后要理清作者寫作思路.