题目内容

19.Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings.It is caused mainly by industrial underwater explosions,ocean drilling,and ship engines.
Some scientists have proposed (提议) setting a noise limit of one hundred and twenty decibels (分贝) in oceans.They have observed that noises at the level can frighten and confuse whales.
A team of American and Canadian scientists discovered that loud noises could seriously injure some animals.They found that powerful underwater explosions were causing whales in the area to lose their hearing.This seriously affected the whales'ability to exchange information and find their way.Some of the whales even died.
Some researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels.They say such a limit would mean an end to important industrial and scientific research.Scientists do not know how much and what kinds of noises are harmful to ocean animals.However,many scientists agree that noise is a greater danger than they believed.They want to prevent noises from harming creatures (生物) in the ocean.
29.Concerning the effect of noises on whales,which of the following is TRUE?B
A.They are deaf to noises.
B.Noises at a certain level may hurt them.
C.Noises could kill them.
D.Noises will cause them to lose their eyesight.
30.Some scientists think that the noise limit of one hundred and twenty decibels wouldA.
A.prevent them doing their research work
B.benefit them a lot in their research work
C.do good to their health
D.increase the industrial output
31.According to the last paragraph,what will scientists most probably do in the future?D
A.They will study the effect of different noises in the sea.
B.They will work hard to make no noise.
C.They will never do any scientific research in the sea.
D.They will protect sea animals from harmful noises.

分析 科学家认为,人类海上活动导致的噪音污染对海洋生物的健康和行为产生了巨大的影响,甚至威胁到了他们的生存.虽然科学家不知道什么样的噪音对海洋生物有害,然而许多科学家怀疑噪声的危害要远远大于他们想象的程度,因此他们要努力去防止噪声对于海洋动物的危害.

解答 29--31 BAD
29.B 推理判断题.根据第三段They found that powerful underwater explosions were causing whales in the area to lose their hearing.This seriously affected the whales'ability to exchange information and find their way可知,这些海洋噪音影响到了鲸鱼的听力和导航能力,即:一定程度的噪音可能伤害鲸鱼.故选B.
30.A 细节理解题.根据四段They say such a limit would mean an end to important industrial and scientific research.可知,科学家们认为对于分贝的控制会影响一些工业和科学研究工作,所以A选项正确.
31.D 细节理解题:从最后一段的句子:They want to prevent noises from harming creatures in the ocean.可知,他们想要阻止噪音对于海洋生物的危害.故选D.

点评 高考中选用的科技文往往反映的是当今人类最先进的科技水平和最新的科研成果.我们阅读它的过程其实就是学习科学知识,掌握科技信息的过程.然后,理解文章,分析文章,以阅读材料所提供的科学事实为依据,同时得出的结论还应符合基本的科普常识,在细心对照基础上,经过一番分析、综合,然后就要根据题目要求对选项作出正确判断了,这些判断包括选项的表达是否符合原文的意思,对概念,文句的理解是否正确,对要点归纳是否全面等,从而排除错误选项,选择最合适的答案.

练习册系列答案
相关题目
10.Winter is a very special,magical time in Northern Norway,with thelandscape(风景) and light changing constantly and no two days are the same.To many the northern lights are an unforgettable sight,and in Narvik the skies are especially clear and great for observing this phenomenon.Winter also means skiing,and Narvik's ski resort,Narvikfjellet,offers some of the best extreme and alpine(高山的) skiing in Norway.
With a famous and unforgettable view of the fjords(峡湾)and mountains,Narvik has for years been known worldwide for the unique skiterrain(地形) it offers.
The peak tourist season lasts from February to April,although May and June can be fascinating too,often with fantastic dry snow and an unbelievable light lasting well into the evening.
Ski hire
It is possible for adults and children to rent skiing equipment such as snowboards.All equipment is prepared for use.If you would like to book your equipment,please email Narvikfjellet.
Off-piste(滑雪场地外) skiing
In order to explore Narvik's off-piste opportunities you need to know the dangers when choosing routes.It is suggested that you bring necessary equipment such as a shovel and a GPS locator.
Ask Narvikfjellet for an experienced guide and he or she will provide the equipment and advice needed for safe skiing.With a guide you can explore Narvik's unique off-piste areas in a safe manner.Please email Narvikfjellet for more information.
Price examples for the 2011/2012season
TimeChildren (8-15years)Adults
1dayNOK(挪威克朗) 230NOK 325
3 daysNOK 590NOK 835
5 daysNOK 815NOK 1,170
7daysNOK 970NOK 1,375
Children 3-7years can enjoy the service free of charge.
56.If you go to Narvik,you will be impressed withA.
A. the northern lights                     
B.the service
C.the clearest sky                           
D.the skiing equipment
57.In Northern Norway,the peak season may lastB.
A.two month      
B.three months     
C.four months     
D.five months
58.When you go off-piste skiing,the following is necessary EXCEPTD.
A.a shovel       
B.a guide       
C.a GPS locator       
D.a medical box.
7.Driving Offence Points System
What is Driving  Offence Points System?
After the introduction of this system,certain traffic offences will earn the driver points besides other punishment.If a driver makes any of these offences,the points will be recorded.When the driver gets a certain number of points,he will be forbidden to drive for a certain amount of time.
What are the purposes of this system?
This is a system designed to make road much safer.It can improve standards of driving and reduce the accident rates.
Which traffic offences will result in Driving Offence Points?
Of course,not all traffic offences are covered by this system.Only those that have direct effect on road safety are included.There are altogether fourteen items.
Code Offence Points
1.Causing death by dangerous driving 10'
2.Dangerous driving 10'
3.Careless driving 5'
4.Driving after drinking or taking drugs 10'
5.Driving over speed limit by more than15km/hour 3'
6.Driving in a motor race on the road 10'
7.Failing to stop after an accident 3'
8.Failing to give information after an accident 3'
9.Failing to report an accident 3'
10.Failing to obey directions of police officers 3'
11.Crossing double white lines 3'
12.Failing to obey traffic signals 3'
13.Failing to give way to walkers at a crosswalk.Failing to stop for people walking 3'
14.Failing to stop at school crossing 3'
What will happen if you have got up to 10points?
If you have got 10points or above,but still less than 15points,you will receive a warning letter from the Transport Department.This letter will tell your record of Driving Offence Points and remind you of the result of getting more points.It is hoped that this warning will change your driving behavior for the better.
What will happen if you have got 15points?
If you have got 15points or more within two years,a court will take away your driving license.The first time you are found guilty you will not be able to drive for three months,but if you are caught a second time you will not be able to drive for six months.
60.The underlined word"Offence"(Paragraph 1 ) refers toC.
A.a driving habit
B.an official of road safety
C.an action against the traffic law
D.bad behavior in the office
61.The Driving Offence PointsA.
A.is a system that helps to improve the driving standards
B.are points earned because of dangerous driving
C.shows traffic offences of different kinds
D.is a guide dealing with traffic offences
62.What will happen to you if you have got 13points?B
A.You will be punished for the points.
B.You will get a warning letter from the Transport Department.
C.Your record will be sent to the Transport Department.
D.Your driving license will be taken away.
63.What will happen to you if you are caught driving dangerously and two months later you are caught careless driving?C
A.Your license will be taken away.
B.You will not be able to drive for 3months.
C.You will not be able to drive for 6months.
D.You will be taken to the police station.
14.Maybe ten-year-old Elizabeth put it best when she said to her father."But,Dad,you can't be healthy if you're dead."
Dad,in a hurry to get home before dark so he could go for a run,had forgotten to wear his safety belt--a mistake 75% of the US population make every day.The big question is why.
There have been many myths about safety belts ever since their first appearance in cars some forty years ago.The following are three of the most common.
Myth Number One:It's best to be"thrown clear"of a serious accident.
Truth:Sorry,but any accident serious enough to"throw you clear"is also going to be serious enough to give you a very bad landing.And chances are you'll have traveled through a windshield (挡风玻璃) or door to do it.Studies show that chances of dying after a car accident are twenty-five times greater in cases where people are"thrown clear."
Myth Number Two:Safety belts"trap"people in cars that are burning or sinking in water.
Truth:Sorry again,but studies show that people knocked unconscious(昏迷) due to not wearing safety belts have a greater chance of dying in these accidents.People wearing safety belts are usually protected to the point of having a clear head to free themselves from such dangerous situations,not to be trapped in them.
Myth Number Three:Safety belts aren't needed at speeds of less than 30miles per hour.
Truth:when two cars traveling at 30mph hit each other,an unbelted driver would meet the windshield with a force equal to diving headfirst into the ground from a height of 10meters.

24.The reason Father was in a hurry to get home was that heC.
A.wasn't feeling very well
B.hated to drive in the dark
C.wanted to take some exercise
D.didn't want to be caught by the police
25.According to the text,to be"thrown clear"of a serious accident is very dangerous because youB.
A.may be knocked down by other cars
B.may get seriously hurt being thrown out of the car
C.may find it impossible to get away from the seat
D.may get caught in the car door
26.Some people prefer to drive without wearing a safety belt because they believeA.
A.the belt prevents them from escaping in an accident
B.they will be unable to think clearly in an accident
C.they will be caught when help comes
D.cars catch fire easily
27.What is the advice given in the text?C
A.Never drive faster than 30miles an hour.
B.Try your best to save yourself in a car accident.
C.Never forget to wear the safety belt while driving.
D.Drive slowly while you're not wearing a safety belt.
4.I recently got pulled over for speeding not far from my new home in Virginia.I hadn't been paying attention,and I had driven a few miles an hour over the speed limit.
"Can I see your license and registration?"the police officer asked me.I pulled both out for him,and he saw my Pittsburgh address on my Pennsylvania driver's license.
"What are you doing here?"he asked."Are you with the army?"
"No,I'm not."I answered.I explained that I had just moved to Virginia,and I hadn't had time to re-register yet.
"So what brings you here?"He had asked a direct question.Without thinking very hard,I gave him a direct answer."Well,officer,"I said,"since you've asked,I have cancer.I have just months to live.We've moved down here to be close to my wife's family."
"So you've got cancer,"he said flatly.He was trying to figure me out.Was I really dying?Was I lying?He took a long look at me."You know,for a guy who has only a few months to live,you sure look good."
He was obviously thinking:"Either this guy is pulling one big fat line on me,or he's telling the truth."He was trying to question my honesty without directly calling me a liar.And so he had forced me to prove that I was being honest.
"Well,officer,I know that I look pretty healthy.I look great on the outside,but the tumors(肿瘤)are on the inside."And then,I don't know what possessed me,but I just did it.I pulled up my shirt,showing the operational scars.
He looked at my scars.He looked in my eyes.He now knew he was talking to a dying man.Well,he wasn't taking this any further.He handed me back my license."Do me a favor."he said,"Slow down from now on."
The awful truth had set me free.As he went back to his police car,I had a realization.I had been one of those gorgeous blondes (金发美女) who could bat her eyelashes and get out of tickets.I drove home under the speed limit,and I was smiling like a beauty queen.
24.The author was stopped by the police officer becauseA.
A.he drove too fast
B.he forgot to re-register
C.he was seriously ill
D.he didn't have a license
25.The author moved to Virginia probably becauseC.
A.he was unhappy
B.Virginia had better hospitals
C.he could spend more time with families
D.he served in the army there
26.On hearing about the author's cancer,the police officerB.
A.said it was an excuse 
B.doubted his honesty
C.showed sympathy for him
D.asked him to show his scars
27.It can be inferred from the passage that the author wasD.
A.romantic                      
B.adventurous
C.dishonest                
D.optimistic.
11.A few days ago my family and I were out for an evening walk.As we headed home,dark(41)B started rolling in and we knew we probably wouldn't make it back without getting wet.(42)A enough,the rain started falling just as we(43)D our neighborhood.We all (44) C?H down the street and into the house but when we got there I noticed that one of my sons was(45)A.I went back out in the rain and found him (46)C in an irregular pattern in front of the house.His face was one of(47)D as he seemed to be going in circles.This is my child that usually hates getting (48)B.
I shouted to him,"What are you doing?!!"
"I hate getting wet!"he(49)A back.
"Then why are you running around in the (50)C?Hurry inside!"
"I'm trying to but I have to (51)D the rain drops!"
He was getting more wet than any of the rest of us(52)A he was trying to avoid the raindrops.As I went and put him(53)B my arm and walked him inside,I realized that there is a good (54)C in this story.
How often do you (55)D life"avoiding the raindrops"?How often do you get so worried about the little (56) A that might happen,the failures that you miss out on the great(57)D that you could be having?We can spend all of our time running around in circles trying not to fail or we can accept that failure is going to come and (58)C forward anyway.Any happy and successful person will tell you that the road to success is (59)B with failures.
But every time you fail,you learn.Every time you learn,you improve.The more you improve,the more(60)A you will be.
41.A.busesB.cloudsC.mosquitoesD.smoke
42.A.SureB.AnxiousC.StrangeD.Funny
43.A.surroundedB.noticedC.crossedD.entered
44.A.pacedB.escapedC.hurriedD.advanced
45.A.missingB.outstandingC.disturbingD.charming
46.A.jumpingB.tremblingC.runningD.sliding
47.A.happinessB.pleasureC.excitementD.suffering
48.A.coldB.wetC.hungryD.thirsty
49.A.screamedB.wavedC.turnedD.looked
50.A.distanceB.darknessC.rainD.wind
51.A.collectB.experienceC.fightD.avoid
52.A.becauseB.thoughC.unlessD.if
53.A.withB.underC.byD.beside
54.A.endingB.plotC.lessonD.theme
55.A.care aboutB.rely onC.sort outD.go through
56.A.failuresB.accidentsC.emergenciesD.disasters
57.A.painsB.dangersC.diseasesD.adventures
58.A.floatB.wanderC.moveD.flow
59.A.equippedB.pavedC.buriedD.covered
60.A.successfulB.generousC.considerateD.intelligent.
11.Michel is a young girl who works for the police(31)Da handwriting expert (专家).She has helped(32)Cmany criminals (罪犯) by using her special talents (天才).
  When she was fourteen,Michel was already(33)Ainterested in the differences in her friends'(34)Dthat she would spend hours (35)Bthem.After(36)Bcollege she went to France for a(37)Ctwo-year class in handwriting at the School of Police Science.
  Michel says that it is(38)Dfor people to hide their handwriting.She can discover(39)Aof what she needs to know simply(40)Blooking at the writing with her own eyes,(41)Dshe also has machines(42)Chelp her make(43)Bdifferent kinds of paper and ink.This knowledge is often(44)Agreat help to the police.
    Michel believes that handwriting is a good(45)Bof what kind of person the writer is."I wouldn't go out with a fellow that I didn't like his handwriting."She says.But she adds she fell in love with her future husband,a young policeman before she studied his handwriting.It is later proved to be all right,however.
31.A.withB.byC.likeD.as
32.A.searchB.followC.catchD.judge
33.A.soB.tooC.quiteD.extra
34.A.booksB.letterC.tonguesD.handwriting
35.A.writingB.studyingC.settlingD.uncovering
36.A.attendingB.finishingC.startingD.stepping into
37.A.powerfulB.naturalC.specialD.common
38.A.mainB.safeC.easy   D.impossible
39.A.mostB.nothingC.littleD.sight
40.A.withB.byC.ofD.about
41.A.soB.forC.thusD.but
42.A.theyB.in whichC.thatD.those
43.A.upB.outC.forD.into
44.A.ofB.toC.withD.for
45.A.testB.sign(标记)C.meansD.habit
12.Delta College starts Street Fair
San Joaquin Delta College will introduce its new Summer Street Fair,which runs from noon to 8 p.m every Friday stating this week through Aug.9 in Delta's L-l parking lot near Pacific Avenue and March Lane.The fair goes with Delta's weekend flea market.
This week's featured performers are guitarist T ravis Matsumoto from noon to 3 p.m.,and Julio and his Jazz Trio from 3 to 6 p.m.
Lode Farmers Market opens
The Angels Camp Certified Farmers Market begins its yearly run from 5 p.m.to dusk thiFriday in Utica Park in downtown Angels Camp.Opening night will feature wine tasting from award-winning Four Winds Cellars,and live music by guitarist Nicholas Leffler.Visitors will find fresh,locally grown produce and specialty foods.There will also be barbecue and California-Mexican fusion cuisine.
Join River Rafting for a good cause
Whitewater enthusiasts can participate in Mokelumne Rive,Rafting Adventures on June 16 in Mokelumne Hill.Local outfitter O.A.R.S.is donating its serv ices to help with the event Departures are at 8 a.m.,noon,or 4 p.m.The trip should la st about three hours.
The trip is appropriate for those 7 and older,and the ability to swim is not required.The cost is   70 per person.
Films center on paddling water
The festival is an annual contest that awards winning films that focus on paddling in rivers,lakes and oceans in a variety of locales.Tickets to the film festival are  12 in advance and  15 at the door,and are also available online at ticketriver.com/event/7002-reel-paddling-film-festival.
The evening also includes a drawing.Prizes include whitewater trips on the South Fork of the American River.

21.If you want to go to the Summer Street Fair.B
A.you must be a student from Delta College
B.you can go there on the afternoon of Friday
C.you should live near the Pacific Avenue
D.you must give a performance in the market
22.If you want to enjoy the tasty foods,you can go toB.
A.the new Summer Street Fair of Delta College
B.Lode Farmers Market
C.Mokelumne River Rafting Adventures
D.the film festival centering on paddling water
23.If you are interested in paddling in rivers.C
A.you can know all the American rivers
B.you must try hard to get many prizes
C.you can get tickets from a website
D.you must keep silent in the evening.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网