题目内容

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 (补助) 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 (基础设施) 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, b, c            B.b, c, d            C.c, d, e            D.a, 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】

试题分析:文章讲述了生物质能的好处及其生物质现在并没有得到广泛运用的原因,同时作者相信在不久的将来肯定能够解决这些问题,它会被广泛的运用。

1.细节题。从文章Humans have been burning such biomass—organic materials from plants or animals可知,生物质能是一种燃烧植物或是动物来获取能量的东西,故选B

2.细节题。从文章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可知生物能的好处是便宜,排放温室气体少,能够获得政府的补助,故选D

3.细节推断题从Although most coal-fired power stations could take a small amount of their fuel from biomass without significant adjustment,及倒数第一,第二段可知,依靠煤发电的电厂如果用生物质能的话需要相当大的改变,故选C

4.推断题。从全文来看,作者并没有推崇也没有反对这种能源,只是非常客观的态度说明了它的使用情况,故选D

考点:科普类说明文

点评:本文文脉清晰,但是文意较难理解。说明文是历年高考很常见的文体,对于科技类的说明文比较难,而对于说物的文体较容易。本文中,把握好一个中心即作者对于生物质能进行了客观的介绍。同时,此类文章细节题居多,在对文章看懂了的基础在仔细对比选项和文章,即可得出答案。

 

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1.The author was probably the girl’s        .

A. brother or sister            B. friend       C. mother          D. teacher

2.Why was the girl heartbroken ?

A. She was considered too short to be a top player.

B. Her coach stopped her training because of her height.

C. She couldn’t be on a college basketball team.

D. She wouldn’t be admitted by an ideal college.

3. We can learn from the passage that        .

A. her family wouldn’t like to pay her college fee

B. her father forced her to play basketball in collage

C. being a top basketball player can win you a scholarship for college

D. she wouldn’t like to turn to his father for help when in difficulty

4.Which word can best describe her father ?

A. Encouraging.     B. Optimistic.      C. Stubborn.            D. Cruel.

5.Which proverb best matches the story ?

A. Practice makes perfect.              B. Rome was not built in a day.

C. Where there is a will, there is a way.    D. Pride comes before a fall.

 

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So to raise awareness, the US has made June 22 to 28 National Lightning Safety Week. It aims to warn the public of the dangers of lightning and provide safety tips during thunderstorms. “If you hear thunder , you are in danger from lightning,” said Rocky Lopes, a disaster educator at the American Red Cross.“Thunder means that lightning is close enough to hit you at any minute, so you should move indoors immediately and stay there until after the storm has ended. The single most important thing to remember is to seek hiding place,”Lopes said.

Summer is the high time for lightning storms, so when lightning strikes across the sky, remember these safety tips:

Stop working, fishing, swimming or playing in open fields.

If you can count less than ten seconds between a thunder and a lightning flash, take cover inside the nearest building.

Do not stand under a tree.

Get off bicycles or motorcycles.

Crouch down(蹲下)if there is no hiding place.

Avoid open spaces, wire fences, metal objects and electrical objects such as hair driers.

 

1.The popular opinion about being struck by lightening is that    .

A. there is a greater chance for being killed by lightening than any other natural disaster

B. it is the most dangerous among all the natural disasters

C. the chance for a person to be struck by lightening is very small

D. it is impossible for people to be killed by lightening

2. The average death rate of being struck by lightening in US is about   .

A.18%       B.50%     C.30%    D.73%

3. Among all the safety tips, the most important one is that when you hear thunder in the open air,    .

A. just stand by your bicycles and motorcycles

B. quickly find a place to go inside

C. count ten seconds between a thunder and a lightening

D. don’t have a hair drier in your hand

4. According to the passage, which of the following is TRUE?

A. There are more people killed by tornadoes and hurricanes than by lightening in US each year.

B. There are on average 5 persons killed by lightening in Nepal each day.

C. The death rate of being stuck by lightening is much higher than by other natural disasters.

D. The National Lightening Safety Week is made to warn the public against lightening.

 

 

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