题目内容

1.A.accurate B.alteration C.average D.calculates E.conceal F.enormously G.initial H.intervals I.merely J.multiply K.prediction

Beyond two or three days,the world's best weather forecasts are based on guesswork,and beyond six or seven they are worthless.
The Butterfly Effect is the reason.For small pieces of weather-and to a global forecaster,small can mean thunderstorms and snowstorms-any (41)K fails rapidly.Errors and uncertainties (42)J,gathering upward through a chain of unstable features,from dust devils (尘旋风) and windstorms up to continent-size eddies (旋风) (43)I satellites can see.
The modern weather models work with a network of points of the order of sixty miles apart,and even so,some (44)Gdata has to be guessed,since ground stations and satellites cannot see everywhere.But suppose the earth could be covered with sensors spaced one foot apart,rising at one-foot (45)H all the way to the top of the atmosphere.Suppose every sensor gives perfectly (46)A readings of temperature,pressure,dampness,and any other quantity a meteorologist (气象工作者) would want.Exactly at noon a(n) (47)F powerful computer takes all the data and (48)D what will happen at each point at 12.01,then 12.02,then 12.03 …
The computer will still be unable to predict whether Princeton,New Jersey,will have sun or rain on a day one month away.At noon the spaces between the sensors will (49)E alterations that the computer will not know about,tiny variations from the (50)C.By 12.01,those alterations will already have created small errors one foot away.Soon the errors will have multiplied to the ten-foot scale,and so on up to the size of the globe.

分析 世界上最好的天气预报能预测2-3天的天气情况,超过6-7天就没有什么意义了.

解答 41-45  KJIGH       46-50  AFDEC
41.K 考查名词.根据第一段的内容"the world's best weather forecasts"可知,话题是有关天气预报,所以"prediction"意思是"预测".
42.J考查动词.通过句子里的"through a chain of unstable features"可知"错误和不确定性"是成倍增长的.
43.I考查副词.对于"continent-size eddies"幅度比较大的旋风,普通预测不出来,只有卫星能预测.
44.G考查形容词.根据since ground stations and satellites cannot see everywhere推出因为地面气象站不能每个地方否预测到,所以原始数据都靠猜测.
45.H考查名词. all the way to the top of the atmosphere提示我们每隔一步间隔的距离就放置一个感应器.
46.A考查形容词.根据 后面的"readings of temperature,pressure,dampness"这一系列都是准确的数据.
47.F考查副词.此处需要用一个副词来修饰形容词,enormously powerful 意思是力量非常强大的.
48.D考查动词.calculate意思是计算,和句子里take并列谓语动词.
49.E考查动词.根据前句The computer will still be unable to predict 电脑不能预测一个月以外天气情况,所以会隐藏一些天气.
50.C考查形容词.from the average意思是从平均上来说,电脑有时候连细微的变化都会忽略.

点评 本题的题型属于十一选十,它的做题原则是:所给单词的词性及词义与空格所需的词性和词义匹配.选用时要注意,认真观察前后文,结合语境语义分析题目.

练习册系列答案
相关题目
19.Festivals around the world
Raksha Bandhan
This is a Hindu festival held in August.Sisters give their brothers a rakhi,a bracelet made of thread.In return,the brothers promise to care for their sisters.
Moomba
This takes place each year in Melbourne,Australia.There are boat races in the Yarra River,parades and art shows.
US Independence Day
This is held on 4th July.The U.S flag is flown from buildings and people hold parties to celebrate the birth of the nation.
Bastille Day
On 14th July,people in France celebrate this occasion with flags and fireworks.It marks the start of the French Revolution.
May Day
The 1st of May is the day when northern Europeans welcome spring.Long age,people wore green leaves and danced outdoors.
Carnival in Rio de Janeiro
This is a four-day festival when thousands of people in costume dance the samba through the streets.
Joan of Arc
Joan of Arc,the French girl-soldier is honored on the 30th of May.It was the day she was burnt to death by the English in 1431.

33.Which of the following is NOT one of the activities in the Moomba festival?C
A.Parades.
B.Boat races.
C.dancing the samba    
D.Art shows.
34.Which festival marks the day when the nation was set up?D
A.Carnival in Rio de Janeiro.
B.May Day.
C.Bastille Day             
D.U.S Independence Day
35.Which festival is held in memory of the French Revolution.?A
A.Bastille Day    
B.Moomba   
C.Raksha Bandhan   
D.Joan of Arc.
3.I walked through the door of the office building I worked in.Then I realized that I needed some money so I went to the (21)B at the corner of the street.
As I finished and turned to(22)D,I saw a wallet on the counter(柜台).The wallet was brown and(23)Cthree hundred dollars,a driver's license,and a(24)D card.I didn't know the name on the license,but(25)Ahe was,he was going to be in panic.
I went home with the wallet.In my apartment,I(26)B the online phone book and found no one to(27)Cthe name on the card in the wallet.I really wanted to (28)Bthe man.If it had been my wallet,I would have been sick to my stomach with (29)A.I(30)Cthe bank card and became(31)Din thought.(32)A,a fresh idea flashed through my mind.On the back was the number to his bank.
"Thank you for(33)CWachovia Bank.Can I help you?""I found a wallet at one of your bank machines today and I am trying to find the (34)D.""That's very nice of you,sir.Can you(35)Ame the number on the card please?"I did what I was told and asked,"Can you tell me his phone number?I want to contact him to (36)Ahis wallet.""I'm sorry,sir,but we cannot give out the(37)B information of our customers.""I understand.Can I give you my telephone number?You could call him and tell him who I am.""I can(38)A do that,sir."
I gave her my contact information and hung up.Two days later,a gentleman found me.He (39)B thought he would see his wallet again.He was so (40)D that he kept saying"thanks"many times.
I smiled all day long.Doing good for others does good for you
21.A.restaurantB.bankC.hotelD.supermarket
22.A.passB.informC.watchD.leave
23.A.existedB.replacedC.containedD.gathered
24.A.nameB.identityC.recordD.bank
25.A.whoeverB.whateverC.howeverD.whichever
26.A.publishedB.checkedC.comparedD.reviewed
27.A.needB.recognizeC.matchD.remember
28.A.blameB.helpC.followD.study
29.A.worryB.doubtC.curiosityD.sadness
30.A.set upB.gave upC.picked upD.put up
31.A.interestedB.confusedC.crazyD.lost
32.A.ImmediatelyB.StrangelyC.GenerallyD.Recently
33.A.visitingB.choosingC.callingD.trusting
34.A.sellerB.designerC.winnerD.owner
35.A.giveB.sendC.writeD.suggest
36.A.returnB.gainC.keepD.confirm
37.A.enoughB.personalC.specialD.obvious
38.A.certainlyB.usuallyC.luckilyD.simply
39.A.oftenB.neverC.seldomD.once
40.A.nervousB.curiousC.modestD.grateful.
6.Many people think that a job or a workplace is the only cause of stress.This is not completely true.Stress can be experienced anywhere and its cause can be anything.But when you go home,you should be able to let go all your stress and relax.The following should help you deal with stress at home.
Many people are not able to deal with stress because they simply don't know about the cause of their stress.Are your goals too high?Are you able to meet the demands of your family?Is everything between you and your friends all right?These are some of the many questions that you need to ask yourself.Even the simplest issues,such as traveling a great distance to your workplace,can cause a lot of stress.
Knowing the cause is very important and it is the first step in dealing with stress.
You also need to find the best way that suits you.Sometimes a bad memory or an incident that
happened in the past may worry you.You can always try meditation(沉思)to deal with such emotional
problems.The simplest of all relaxation techniques is to lie down on a bed and close your eyes.Try not to think of anything.
If you have a hobby,then dealing with stress becomes easier.A hobby not only helps you to get away from a stressful environment,but also gives you energy to deal with difficult situations.
More often than not you are unable to deal with a situation because you do not organize yourself.
Your actions are out of order because you are confused in your thoughts.Well,this may be because you are a little bit inexperienced.Try to think clearly.Write down the things that are troubling you or the things that you need to do.Make an efficient(有效的)plan to deal with them at home.A practical action plan solves almost all the problems that you can have.
How to Deal with Stress at Home
Find the(66)
cause
No matter where the stress is from,knowing it is important,because it helps to(67)findthe first step towards reducing your stress.
(68)
Relaxin a suitable way
Meditation is a good(69)wayto solve emotional problems.
Lying down on a bed with your eyes(70)
closedis the simplest way of relaxation.
Have a hobbyIt keeps you away from the environment that makes you(71)stressed
 
It gives you new(72)energyto deal with difficult situations.
(73)
Organizeyourself
Trying to think in a(74)clearway.
Write down the things that worry you or the things you need to do.
Make a(75)planto solve the problems that trouble you.
10.Alibaba started taking the lead in China by connecting big Chinese manufacturers(制造商) with big buyers across the world.Its business-to-business site,Alibaba.com allowed business to buy almost everything.Alibaba's advantage wasn't hard to judge:size.Alibaba is just big,even by Chinese standards.Its market attracts 231 million active buyers,8 million sellers,11.3 billion orders a year-and Alibaba is just the middleman.It encourages people to use its markets-not charging small sellers a percentage of the sale.
    If you want a quick look into the influence of Alibaba on daily Chinese life,take my experience.I moved to Beijing a year ago and quickly got tired of visiting small stores across the crowded,polluted city of 20 million people in search of new electronics(电子产品),bathroom furnishings,and anything else my wife wanted."You're looking for what exactly?Why not try it?"my Chinese teacher asked me one day.With that,my wonderful new relationship with Alibaba began.
    Alibaba's original business-to-business model now is second to consumer buying.Chinese retail(零售) buying makes up 80% of Alibaba's profit,and leading that group is Taobao,with 800 million items(商品) for sale and the most unbelievable selection of things you'll ever find.TMall.com is Alibaba's other big site,where you can find brand name goods from Nike and Unilever near the lowest prices.
What I have a hard time explaining to friends and family back in the U.S.is how China has gone beyond traditional shopping-big-box retailers especially-in favor of online purchases(购物) on Taobao and a few other sites.In smaller towns than Beiji ng,where big retailers have not yet traveled,shopping online is shopping,and shopping is Taobao.I have a list of some of my recent purchases on Taobao for a sense of how wide the marketplace is.Almost everything arrived a day or two after ordering with free shipping.I'm not even a big buyer,because I need friends to help me search the Chinese-language site.When I was searching my purchase history on my Chinese teacher's iPad,which helps me buy goods,I looked through with great difficulty about 10 of her purchases for every one of mine.
28.Alibaba's advantage mainly lies in(位于)B.
A.its low price                            B.its big size
C.its not charging small sellers         D.its business-to-business service 
29.What can we learn from the underlined sentence in the passage?
C
A.Alibaba will continue to develop.
B.Alibaba stands out as the best online site.
C.Alibaba acts as a bridge between the buyers and sellers.
D.Alibaba is of middle size among all the online sites.
30 What can be inferred from the passage?
B
A.TMall.com provides more profit than Taobao.
B.The author's Chinese teacher is also an online purchase lover.
C.Taobao has no obvious advantage over other similar online sites.
D.Alibaba's business-to-business service earns more money than retail.
31.What is the passage mainly about?
D
A.Shopping online in China is TaoBao.
B.How the author purchases online in China.
C.Shopping online goes beyond traditional shopping.
D.Alibaba influences people's daily purchase in China.

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