Across countryside, non-food crops are growing alongside wheat．Some are used in new alternatives to plastics and other materials, but others will simply be burned．

Burning crops is becoming more popular because it is good for the planet．Doing so is also cheaper than burning fossil fuels．As more land is devoted to non-food crop production, the economics of crops for fuel are likely to become even more favorable．

Humans have been burning such biomass—organic materials from plants or animals— since they discovered fire．But that burning fossil fuels could have catastrophic consequences has brought biomass back into fashion．

Even allowing for emissions (排放) of carbon dioxide from fuel used in planting, harvesting, processing and transporting biomass fuel, replacing fossil fuel with biomass can typically reduce greenhouse gas emissions by more than 90 percent．

Power stations around the world are experimenting with forms of biomass to add to their coal or oil, with encouraging results．Indeed, power companies could profit by turning to biomass, especially when the subsidies (補(bǔ)助) many governments offer for using renewable energy are taken into account．

Farmers can benefit from growing biomass．In Europe, the reduction of subsidies for certain crops is exposing farmers to market forces．Instead of being paid for whatever they produce, farmers must seek a clear demand for their product．Many believe that the demand for alternatives to fossil fuels could be just such a driver．

But while biomass offers a variety of potential alternatives, the world's infrastructure (基礎(chǔ)設(shè)施） has developed around burning fossil fuels to such a stage that switching to biomass involves a change in conception that many companies have not accepted．

Also, there are problems with using biomass．Although most coal-fired power stations could take a small amount of their fuel from biomass without significant adjustment, few are built to run on biomass alone．Burning some forms of biomass also causes environmental problems．Oils and waste can be smelly, while wood produces smoke unless burned properly．

The supply chains for fossil fuels are set up well, but those for biomass are just the beginning. Sources of supply for biomass rely on farm production and can therefore be less reliable. They are necessarily limited and it wouldn't make sense to turn a very large amount of valuable agricultural land away from food crops．But as the world adjusts to the need to control greenhouse gas emissions, these problems may receive more attention．

1.What do we know about biomass?

A．It is a useful way of burning crops．

B．It is plant and animal matter used to provide power．

C．It is a new alternative to be used widely．

D．It is a popular approach to fighting against pollution．

2.What are the advantages of using biomass?

a．It gives off less greenhouse gases．

b．It helps farmers receive subsidies for what they produce．

c．It has met the clear demand for energy．

d．It has brought subsidies for some power companies．

e．It is cheaper than burning fossil fuels．

A．a(chǎn), b, c            B．b, c, d            C．c, d, e            D．a(chǎn), d, e

3.For coal-fired power stations, ______．

A．more effective ways to use biomass have been tried

B．using renewable energy has become their daily task

C．burning biomass alone would require considerable changes

D．setting up dependable supply channels needs governments' support

4.What is the author's attitude towards biomass fuels?

A．Defensive．       B．Doubtful．        C．Negative．        D．Objective

 

【答案】

1.B

2.D

3.C

4.D

【解析】

試題分析：文章講述了生物質(zhì)能的好處及其生物質(zhì)現(xiàn)在并沒有得到廣泛運(yùn)用的原因，同時(shí)作者相信在不久的將來肯定能夠解決這些問題，它會被廣泛的運(yùn)用。

1.細(xì)節(jié)題。從文章Humans have been burning such biomass—organic materials from plants or animals可知，生物質(zhì)能是一種燃燒植物或是動(dòng)物來獲取能量的東西，故選B

2.細(xì)節(jié)題。從文章Doing so is also cheaper than burning fossil fuels．；biomass can typically reduce greenhouse gas emissions by more than 90 percent． ；Farmers can benefit from growing biomass．In Europe, the reduction of subsidies for certain crops is exposing farmers to market forces可知生物能的好處是便宜，排放溫室氣體少，能夠獲得政府的補(bǔ)助，故選D

3.細(xì)節(jié)推斷題從Although most coal-fired power stations could take a small amount of their fuel from biomass without significant adjustment,及倒數(shù)第一，第二段可知，依靠煤發(fā)電的電廠如果用生物質(zhì)能的話需要相當(dāng)大的改變，故選C

4.推斷題。從全文來看，作者并沒有推崇也沒有反對這種能源，只是非�？陀^的態(tài)度說明了它的使用情況，故選D

考點(diǎn)：科普類說明文

點(diǎn)評：本文文脈清晰，但是文意較難理解。說明文是歷年高考很常見的文體，對于科技類的說明文比較難，而對于說物的文體較容易。本文中，把握好一個(gè)中心即作者對于生物質(zhì)能進(jìn)行了客觀的介紹。同時(shí)，此類文章細(xì)節(jié)題居多，在對文章看懂了的基礎(chǔ)在仔細(xì)對比選項(xiàng)和文章，即可得出答案。

 

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