题目内容

12.DNuclear power is the world's largest source of clean energy.Nuclear power plants(电厂) produce no controlled air pollutants,such as sulfur or greenhouse gases.The use of nuclear power in place of other energy sources helps to keep the air clean,preserve the earth's climate,and prevent acid rain.Howeve r,there exist safety concerns if the plant is not operated correctly or unforeseen things happened when the plant was developed,as happened at the Fukishima(福岛) plant in Japan.It may cause damage to everything,including our health.Nuclear power's danger to health,safety,and even life itself can be summed up in one word:radiation.Nuclear radiation has a certain mystery about it,partly because it cannot be detected by human senses.It can't be seen or heard,or touched or tasted,even though it may be all around us.There are other things like that.For example,radio waves are all around us but we can't detect them,sense them,without a radio receiver.Similarly,we can't sense radioactivity without a radiation detector.But unlike common radio waves,nuclear radiation is not harmless to human beings and other living things.At very high levels,radiation can kill an animal or human being immediately by killing masses of cells in vital organs.But even the lowest levels can do serious damage.There is no levels of radiation that is completely safe.If the radiation does not hit anything important,the damage may not be serious.This is the case when only a few cells are hit,and if they are killed immediately.Your body will replace the dead cells with healthy ones.But if the few cells are only damaged,and if they reproduce themselves,you may be in trouble.They reproduce themselves in a deformed way.They can grow into cancer.Sometimes this does not show up for many years.This is another reason for some of the mystery about nuclear radiation.Serious damage can be done without the victim being aware at the time that damage has occurred.A person can be irradiated(辐射)and feel fine,then die for cancer five,ten,or twenty years later as a result.Or a child can be born weak as a result of radiation absorbed by its grandparents.Radiation can hurt us.We must know the truth.

32.What can we infer from the passage?D
A.We can't detect radioactivity even with modern equipment.
B.Only radiation at very high levels can kill an animal or human being.
C.If a few cells are only damaged,healthy cells will take the place of dead ones.
D.Radiation is harmful no matter what level it is.
33.How can nuclear radiation kill an animal?A
A.By killing many cells in important organs.
B.By killing a few cells.
C.By hitting any place in its body.
D.By damaging its heart.
34.If a human being is hit by nuclear radiation,he mayD
A.die of cancer after many years                        
B.die immediately  
C.have a child who may be born weak                   
D.all of the above
35.What's the author's main purpose in writing this passage?B
A.Discussing the cause of cancer.
B.Solving the mystery about radiation.
C.Emphasizing the importance of protection from radiation.
D.Introducing the nuclear power.

分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了核辐射对人体有许多危害,一定要妥善防护.

解答 32.D.细节理解题.根据文章There is no levels of radiation that is completely safe.If the radiation does not hit anything important,the damage may not be serious可知任何水平的辐射都会损害人体;故选D.
33.A.细节理解题.根据文章At very high levels,radiation can kill an animal or human being immediately by killing masses of cells in vital organs可知核辐射通过杀死重要器官的许多细胞杀死动物;故选A.
34.D.细节理解题.根据文章Serious damage can be done without the victim being aware at the time that damage has occurred.A person can be irradiated(辐射)and feel fine,then die for cancer five,ten,or twenty years later as a result.Or a child can be born weak as a result of radiation absorbed by its grandparents可知如果有人受到核辐射,他可能会患有癌症,立即死亡,生出有弱症的孩子;故选D.
35.B.推理判断题.根据文章Nuclear radiation has a certain mystery about it,partly because it cannot be detected by human senses可知作者写这篇文章的主要目的是介绍辐射的奥秘;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.

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4.Inspiring young minds!
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Well,it has no ads or promotions inside-instead it is jam-packed with serious ideas.TOKNOW makes complex ideas attractive and accessible to children,who can become involved in advanced concepts and even philosophy(哲学)-and they will soon discover that TOKNOW feels more like a club than just a magazine.
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Every month the magazine introduces a fresh new topic with articles,experiments and creative things to make-the magazine also explores philosophy and wellbeing to make sure young readers have a balanced take on life.
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21.Why is TOKNOW a special magazine?C
A.It entertains young parents.
B.It provides serious advertisements.
C.It combines fun with complex concepts.
D.It publishes popular science fictions.
22.How much should you pay if you make a 12-mouth subscription to TOKNOW with gift pack from China?D
A.£55.
B.£60.
C.£65.
D.£70.
23.Subscribers of TOKNOW would getA.
A.full refund within 28 days
B.free birthday presents
C.membership of the TOKNOW club
D.chances to meet the experts in person.
2.Children and young people tend to have certain role models-people they want to be like when they grow(36)C.Though (37)Achildren would have wished to copy their mother,father or a (n)   (38)Brelative,gradually these role models are thought of as famous people or popular (39)B.People have different opinions about (40)Cpopular stars or other famous people are good role models for children.Charming models,such as Katie Price,are often (41)Band thought highly of by young girls.This is the biggest worry of parents and teachers.They wish to (42)Atheir children to have the concept (概念) that success is achieved through hard work and (43)Crather than an attractive looking.
Most people tend to grow up to be those (44)Dare close to home-their parents or family friends.Some decide to be like their favorite teacher.A child who loves to(45)Dmay want to grow to be the next Picasso or Van Gogh; Someone who loves to(46)Amight imagine themselves as a famous writer; if a child enjoys dancing,he or she(47)Bwell admire a famous dancer,but this is not the (48)D.A lot of dance students wish to be like their( 49)Ateacher.
Therefore,the job of a teacher is (50)Cjust providing knowledge of a given subject.They should be able to (51)Ctheir students'trust and (52)Athem well.Helping youngsters to learn from models,to learn how to accept (53)Dwith grace(优雅) and losing with respect,is central to any parent's or teacher's job.Manners are very important and a dance teacher can (54)Ahis or her position and influence to   (55)Cgood behaviors to youngsters.

36.A.youngerB.strongerC.olderD.taller
37.A.at firstB.at lastC.at leastD.at most
38.A.generousB.favoriteC.ordinaryD.humorous
39.A.fansB.starsC.singersD.dancers
40.A.thatB.whyC.whetherD.if
41.A.awardedB.admiredC.admittedD.afforded
42.A.encourageB.receiveC.holdD.ignore
43.A.luckB.imaginationC.effortD.effect
44.A.whatB.whichC.thatD.who
45.A.readB.singC.writeD.draw
46.A.writeB.readC.travelD.think
47.A.shouldB.mayC.mustD.need
48.A.dealB.troubleC.matterD.case
49.A.danceB.musicC.artD.piano
50.A.better thanB.less thanC.more thanD.rather than
51.A.receiveB.loseC.gainD.accept
52.A.communicate withB.keep up withC.come up withD.catch up with
53.A.challengingB.fallingC.failingD.winning
54.A.make use ofB.lose control ofC.take charge ofD.get rid of
55.A.turnB.pressC.introduceD.push.
3.In  earliest times,men  considered  lightning to be  one of the  great  mysteries of  nature.Some ancient peoples believed that lightning and thunder were the weapons of the gods.
In  reality,lightning is a flow of  electricity  formed high above the earth.A single  flash of lightning 1.6 kilometres long has enough electricity to light one million light bulbs.
The  American  scientist and statesman,Benjamin  Franklin,was the first to show the connection between electricity and lightning  in 1752.In  the  same  year  he  also  built  the  first lightning rod(避雷针).This device protects buildings from being damaged by lightning.
Modern science has discovered that one stroke of lightning has a voltage(电压)of more than 15 million  volts.A flash of  lightning between a cloud and the earth may be as long as 13 kilometers,and travel at a speed of 30 million meters per second.
Scientists judge that there are about 2,000 million flashes of lightning per year.Lightning hits the Empire State  Building in New York City 30 to 48 times  a  year.In the United States alone it kills an average of one person every day.
The safest place to be in case of an electrical storm is in a closed car.Outside,one shoud go to low ground and  not  get  under a tree.Also,one should  stay out  of water  and away  from  metal fences.Inside a  house,people  should avoid  open  doorways  and windows  and not touch  wires or metal things.
With lightning,it is better to be safe than sorry.

31.People once thought lightning came fromB.
A.the sky             B.the gods          C.the earth            D.nature
32.According to the passage what do you think all buildings need?C
A.Metal fences.B.Electricity.C.lightning rods.D.Machines.
33.Lightning can travelD.
A.as quickly as water
B.not so quickly as electricity
C.at very low speed
D.at very high speed
34.Which of the following is NOT true?C
A.In the U.S.about 360people die from lightning in a year.
B.The Empire State Building frequently gets hit by lightning.
C.Swimming during a thunder storm is a good idea.
D.A closed car is the best place to be during an electrical storm.
35.Lightning is probablyA to man.
A.useful              B.kind             C.useless             D.friendly.

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