题目内容
20.The oldest and most common source(来源) 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(电池) 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.
28.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.
29.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
30.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.
31.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 本文是一篇科技说明文.文章介绍了biomass(生物量)的特征、生物量的优点以及它在美国能源中的地位.
解答 28.C.细节理解题.根据第二段中的"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."可知生物量被认为是"天然电池因为它储存来自太阳的能量;故选C.
29.A.推理判断题.根据第三段中的"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年风电力将成为可再生能源的领导者.故选A.
30.C.推理判断题.根据最后一段中的"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."可知作者鼓励电厂使用生物质是为了减少污染;故选C.
31.B.推理判断题.根据全文内容可知,本文是一篇有关生物量能源的科普类文章.所以,它应该是科学杂志上的文章.故选B.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | To suffer | B. | Suffered | C. | Having suffered | D. | Being suffered |
A. | appreciated | B. | absorbed | C. | argued | D. | adopted |
A. | compete for | B. | compete against | C. | catch up | D. | catch with |