共用题干 If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they l

题目

共用题干
If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.
Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they leaked______(52)the land.When nuclear energy is produced,a lot of______(53)is produced,too,50 a flow of lake or ocean water 15 used to cool the operations.Then the water______(54)to its source.If the returning water were too hot,it would destroy fish and other______(55).
Cow manure is being used to produce a kind of______(56).The manure from farms is put into a machine to convert it to a liquid.Then the gas 15 formed______(57)a natural process.If the converter were not 50______(58)at the present time,it would be used in many places to provide______(59).
Garbage has become an energy source.It______(60)to oil,steam,or electricity,or it is used on the land.
But recent______(61)about power supplies has led to increased interest in the use of wind______(62)a source of electrical power.Windmills are clean and they______(63)no waste.And they use a______(64)resource.Some scientists consider that wind energy systems can fulfill a valuable______(65)in meeting the energy needs of industrialized nations and of the developing world.

_________(53)
A:high temperature
B:hot air
C:heat
D:warmth

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相似问题和答案

第1题：

共用题干
第三篇

No one knows exactly how many disabled people there are in the world,but estimates suggest the figure is over 450 million.The number of disabled people in India alone is probably more than double the total population of Canada.
In the United Kingdom,about one in ten people have some disability. Disability is not just something that happens to other people.As we get older,many of us will become less mobile,hard of hearing or have failing eyesight.
Disablement can take many forms and happen at any time of life.Some people are born with disabilities.Many others become disabled as they get older. There are many progressive disabling diseases.The longer time goes on,the worse they become.Some people are disabled in accidents. Many others may have disability in the form of a mental illness.All are affected by people's attitude towards them.
Disabled people face many physical barriers.Next time you go shopping or to work or visit friends,imagine what would you do if you could not get up steps,or on to buses and trains?What would you do if you could not see where you were going or could not hear the traffic?But there are other barriers:prejudice（偏见）can be even harder to break down and ignorance represents by far the greatest barrier of all.It is almost impossible for the able-bodied to fully understand what the disabled go through,so it is important to draw attention to these barriers and show that it is the individual person and their ability,not their disability,which counts.

The key word in Paragraph 4 is__________.
A:barriers
B:disabled
C:disability
D:prejudice

答案：A

解析：

第一段第一句是该段的主题句。" No one knows exactly how many disabled people there are in the world , but estimates suggest the figure is over 450 million.”说明残疾人数量很多。
第四段第一句和第四句是该段主题句。" Disabled people face many physical barriers."',But there are other barriers:prejudice can be even harder to break down and ignorance represents by far the greatest barrier of all.”该段从实际困难和精神歧视两方面说明残疾人面临的障碍。
文章最后一句："...it is the individual person and their ability, not their disa-bility ,which counts.”大意是“······真正重要的是残疾人的独立人格及其能力，而不是其身体上的残疾。”
选项A、C都出现在第二段中。B是文章所呼吁的。文章最后一段说 "prejudice（偏见）can be even harder to break down and ignorance represents by far the greatest barrier of all"。残疾人所面临的障碍除了身体残疾外，还有人们的偏见和被人们忽视。所以选项D与原文不相符。
主旨题。文章首先叙述残疾人之多和各种残疾，进而从身体和精神两方面阐述残疾人面临的障碍，并指出精神方面的障碍是最难被打破的。因此，可以推论出作者告诫我们应该正确对待残疾人。

第2题：

共用题干
Electromagnetic Energy
1 White light seems to be a combination of all colors.The energy that comes from a source of light is not limited to the kind of energy you can see.Heat is given off by a flame or an electric light.On a cloudy day it is possible to get a sunburn even though you feel cool.Visible light and the kinds of energy that produce warmth and sunburn are examples of electromagnetic energy.
2 The sun is 93 million miles from the earth.Yet we can use energy from the sun because electromagnetic energy travels through space.
3 Many other kinds of energy are also types of electromagnetic energy.Radio,television,and radar signals travel from transmitters to receivers as low-energy electromagnetic waves.Infrared（红外线的）radiation is an electromagnetic wave.When it is absorbed by matter,heat is produced.Waves of infrared and visible light have more energy than waves of radio,television,or radar.Ultraviolet rays（紫外线）and X-rays are electromagnetic waves with even greater amounts of energy.Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living.Ultraviolet radiation is useful in killing certain disease organisms.X-rays and gamma rays have so much energy that they travel through solid objects. They can be used to detect and treat cancer.X-rays are used in industry to find hidden cracks in metal,and in medicine to reveal broken bones.
4 Usually we use electricity to generate electromagnetic energy.The source of most of our energy is the sun.Heat from the sun causes water to evaporate.When the water falls to the earth as rain,some of it is trapped behind dams and then used to operate electric generators.Other generators are powered by coal,but the energy stored in coal came from the sun,too.
5 Until recently,the source of the tremendous amount of energy given off by the sun was a puzzle.If the sun depended on chemical reactions,it would have used up all its energy long ago.Experiments with electromagnetic radiation led to the theory that mass can be converted into energy.About forty years after the theory was proposed , nuclear energy was harnessed（利用）by man.Chemical energy comes from electron （电子）rearrangement.Nuclear energy comes from a change in the nucleus of an atom.Compared with chemical reactions,nuclear reactions release millions of times more energy per pound of fuel.We now believe that the sun's energy comes from the nuclear reactions in which hydrogen is changed into helium（氦）.
6 Nuclear energy is beginning to compete with coal as an economical source of'power to generate electricity.It is also being used to operate engines in large ships.Scientists continue to seek new and better methods of obtaining and using energy.

Infrared radiation can produce heat______.
A:when it is absorbed by matter
B:when it is cloudy
C:because they can pass through solid objects
D:when the sunrays are fierce.
E:when a change in the nucleus of an atom takes place
F:when electron rearrangement takes place

答案：A

解析：

通读文章可知，第三段第一句是段落主题句，紧接着围绕第一句进行了具体阐述，根据第一句中出现的“types of electromagnetic energy”可知，第三段主要讲述几种不同种类的电磁能，应选择C项。
根据第四段第一、二句可知，我们通常用电来生成电磁能，使用的很多能源都来自太阳。紧接着又表明，水能源于来自太阳的热能，煤储存的能量也是来自太阳。因此不难得出，第四段讲的是能量最重要的来源，即太阳。
第五段开头提到太阳能的来源仍是个谜，随后对此进行了分析，最后得出太阳能来自核反应释放的能量。由此可知，第五段主要讲的是，氢原子转变为氦原子的核反应释放的能量是太阳能的来源。几个选项中只有A项提到核反应是太阳能的持久来源，因此选择A项。
通读文章可知，第六段的最后一句是主题句。这句话的大意是：科学家正继续在寻找更好的新方法来获取并使用能源。几个选项中只有E项与之契合，因此选择E项。
根据第一段第四句可知，你即便在感到凉爽的阴天，也有可能被阳光灼伤，因此选择B项。
根据第三段第三、四句可知，红外线是电磁波，当它被物质吸收时，会产生能量。
根据第三段倒数第二、三句可知，X射线和伽马射线之所以能用来探测和治疗癌症，是因为具有很多能量的x射线和伽马射线能穿透固体。
根据第五段第五句可知，化学能是在电子重组时产生的。

第3题：

Electromagnetic Energy

White light seems to be a combination of all colors. The energy that comes from a source of light is not limited to the kind of energy you can see. Heat is given off by a flame or an electric light. On a cloudy day it is possible to get a sunburn even though you feel cool. Visible light and the kind of energy that produce warmth and sunburn are examples of electromagnetic energy.

The sun is 93 million miles from the earth. Yet we can use energy from the sun because electromagnetic energy travels through space.

Many other kinds of energy are also types of electromagnetic energy. Radio, television, and radar signals travel from transmitters to receivers as low-energy electromagnetic waves. Infrared (红外线的) radiation is an electromagnetic wave. When it is absorbed by matter, heat is produced. Waves of infrared and visible light have more energy than waves of radio, television, or radar. Ultraviolet rays (紫外线) and X-rays are electromagnetic waves with even greater amounts of energy. Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living. Ultraviolet radiation is useful in killing certain disease organisms. X-rays and gamma rays have so mush energy that they travel right through solid objects. They can be used to detect and treat cancer. X-rays are used in industry to find hidden cracks in metal, and in medicine to reveal broken bones.

Usually we use electricity to generate electromagnetic energy. The source of most of our energy is the sun. Heat from the sun causes water to evaporate. When the water falls to the earth as rain, some of it is trapped behind dams and then used to operate electric generators. Other generators are powered by coal, but the energy stored in coal came from the sun, too.

Until recently, the source of the tremendous amount of energy given off by the sun was a puzzle. If the sun depended on chemical reactions, it would have used up all its energy long ago. Experiments with electromagnetic radiation led to the theory that mass can be converted into energy. About forty years after the theory was proposed, nuclear energy was harnessed (利用) by man. Chemical energy comes from electron (电子) rearrangement. Nuclear energy comes from a change in the nucleus of an atom. Compared with chemical reactions, nuclear reactions release millions of times more energy per pound of fuel. We now believe that the sun's energy comes from the nuclear reactions in which hydrogen is changed into helium(氦).

Nuclear energy is beginning to compete with coal as an economical source of power to generate electricity. It is also being used to operate engines in large ships. Scientists continue to seek new and better methods of obtaining and using energy.

A. Nuclear Reactions as the Lasting Source of the Sun's Energy

B. The Most Important Source of Energy

C. Types of Electromagnetic Energy

D. X-rays Are Used to Detect and Treat Cancer.

E. Seeking New Sources of Energy

F. Nuclear Energy is Beginning to Compete with Coal

Paragraph 3 ______

正确答案：C
C 解析：第三段的第一句为主题句，意为：许多其他种类的能量也是不同类型的电磁能。该段列举了电磁能的具体例子，C项Types of Electromagnetic Energy(电磁能的类型)与主题句意思吻合，故选C。

第4题：

Chemical energy is generated______.
A:when it is absorbed by matter
B:when it is cloudy
C:because they can pass through solid objects
D:when the sunrays are fierce.
E:when a change in the nucleus of an atom takes place
F:when electron rearrangement takes place

答案：F

解析：

第5题：

Paragraph 4______
A:Nuclear Reactions as the Lasting Source of the Sun's Energy
B:The Most Important Source of Energy
C:Types of Electromagnetic Energy
D:The Machines Used for Energy Generation
E:Seeking New Sources of Energy
F:The Use of Ultravio1et Radiation in Medicine

答案：B

解析：

第6题：

_________(61)
A:consideration
B:thought
C:concern
D:interest

答案：C

解析：

station“站”;factory“工厂”;work“工厂”;firm“公司”。根据下文内容，这里应该是“核电站”，因此选A。
into“进入……”;onto“在……表面”;on“在……上”;to“去……”。根据下文内容，这里应该是“从核电站里排放的废气物质如果遗漏在地面上”，因此选B。
high temperature“高j" ;hot air“热气”;heat“热量”;warmth"温暖”。本句意思是：“产生核能的同时会产生大量热能”。因此选C。
get“得到”;come“来”;fall“落下”;return“返回”，最符合题意。本句意思是：“水会随后流回”。因此选D。
根据常识，海洋里有生命的不止是动物或者植物，而是所有有生命的生物。本句意思是：“如果流回的水太热就会杀死鱼类和其他海里的生命”。因此选C。
gas“天然气”;liquid“液体”;solid“固体”; air“空气”。根据下文，本句意思是：“牛粪被用来生产一种天然气”。因此选A。
by“被…." ;through“通过……方式”;with“与……一起”;from“从……”。本句意思是：“通过自然过程形成天然气”。若用by会有be formed by结构中“构成”的被动式的竣义，因此选B。
expensive"昂贵的”;complicated“复杂的”;rare"稀少的”;troublesome"麻烦的”。本句意思是：“如果目前转换器不昂贵，就能被广泛用来提供能源”。因此选A。
oil“油”;liquid“液体”;power“电力”;fuel“能源”。此处需要的内容是指能源总称，而不是具体的一类能源，因此选D。
此处的意思是“被转换成……”，正确的形式是be converted to...。本句意思是：“它能被转变为油、蒸汽或电，在农村也有用途”。因此选D。
consideration“考虑”;thought“想法”;concern“关心的事”;interest“兴趣”。根据上下文此处应指对能源的关注，因此选C。
like“像……”;as“作为……”;for“为……”;from“从……”。根据本句意思，应选B。
give“给”;deposit“存放”;make“制作”;leave“留下”。本句意思是：“没有遗留污染物”。因此选D。
measureless“不可坝d量的”; limitless“无限的”; boundless“无边无际的”; endless“没完没了的”。此处的意思是：“风力发电有无限的能量来源”。因此选B。
role“角色”; duty“职责”; service“服务”; function“功能”。本句意思是： “一些科学家认为风能在满足工业国家和发展中国家的能源需求方面扮演着很有价值的角色”。因此选A。

第7题：

_________(57)
A:by
B:through
C:with
D:from

答案：B

解析：

第8题：

Why would a clone not be identical to the "master copy"?

A、They are totally different persons.

B、The clone's cells, for example, would have energy-processing machinery that came from the egg, not from the person who was cloned.

C、They have different genetic source.

D、The clone’s cells can be productive.

参考答案：BD

第9题：

X-rays and gamma rays can be used to detect and treat cancer______.
A:when it is absorbed by matter
B:when it is cloudy
C:because they can pass through solid objects
D:when the sunrays are fierce.
E:when a change in the nucleus of an atom takes place
F:when electron rearrangement takes place

答案：C

解析：

第10题：

_________(51)
A:stations
B:factories
C:works
D:firms

答案：A

解析：

共用题干 If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they l

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