游客
题文

The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid--we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink.
However, several types of animals can walk on water. One of the most interesting is the common basilisk. Basilicus, a lizard (蜥蜴) native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water's surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, we'd need huge feet that we could bring up to our ears in order to create adequate "hitting. “
But fortunately there is an alternative: cornflour. By adding enough of this common thickening agent to water (and it does take a lot), you can create a "non-Newtonian" liquid that doesn't behave like normal water. Now, if the surface of the water is hit hard enough, particles(微粒) in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick liquid of cornflour.
Fun though all this may sound, it's still rather messy and better read about in theory than carried out in practice, if you must do it, then keep the water wings handy in case you start to sink--and take a shower afterward!
Walking on water hasn't become a reality mainly because humans _______.

A.are not interested in it
B.have biological limitations
C.have not invented proper tools
D.are afraid to make an attempt

What do we know about Basilicus from the passage?

A.It is light enough to walk on water.
B.Its huge feet enable it to stay above water.
C.It can run across water at a certain speed.
D.Its unique skin keeps it from getting wet in water

What is the function of the cornflour according to the passage?

A.To create a thick liquid.
B.To turn the water into solid.
C.To help the liquid behave normally.
D.To enable the water to move rapidly.

What is the author's attitude toward the idea of humans' walking on water?

A.It is risky but beneficial.
B.It is interesting and worth trying.
C.It is crazy and cannot become a reality.
D.It is impractical though theoretically possible.
科目 英语   题型 阅读理解   难度 较难
登录免费查看答案和解析
相关试题


第三部分:阅读理解 (共20小题;每小题2分, 满分40分)
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
A
The Kindle is coming! The Kindle is coming!
Amazon. corn will start selling its wireless electronic reader the Kindle in 100 countries, including China and most of Europe, from Monday, 19 October. The Kindle will cost $279 (189) globally. Amazon says 200,000 English-language books as well as over 85 newspapers and magazines will be available on the international device (设备).
The Kindle is popular with travellers who like the convenience of downloads and don't like carrying heavy books. Amazon says that for every 100 customers who buy a book in the US, some 48 now buy it as an e-book.
"Our vision for Kindle is every book ever printed, in print or out of print, in every language, all available within 60 seconds," Amazon chief executive Jeff Bezos told the Irish Times, one of the newspapers that will be available on the device. The international Kindle version will store as many as 1,500 books, read PDF files and allow users to make annotations.
Forrester Research predicts that three million e-reader devices will be sold in the US this year, up from an earlier estimate of two million. That is expected to double next year. The research group says that Amazon will take a 60 per cent market share this year, followed by Sony’s Reader at 35 per cent. In July, Credit Suisse estimated that Amazon's revenues from the Kindle could reach $420 million this year, representing 8.4 per cent of the company's total income.
There are rumours that Amazon's next step will be to turn the Kindle into a device for tasks like e-mailing, texting and surfing the Web, thus competing with a tablet computer reportedly being developed by Apple.
56. The underlined word "revenues" in Paragraph 4 can be replaced ________.
A. users B. books C. income D. device
57. Which of the following is true.'?
A. The Kindle can be bought in China now.
B. We can use the Kindle to surf the Internet.
C. The books the Kindle offers are written in 20,000 kinds of languages.
D. This readers are sold in 99 countries of Europe.
58. From this passage we can infer _______.
A. Next year Amazon will sell 6 million readers
B. This year the company's total income reach 5000 million
C. In the US about 48% customers who buy a book use the Kindle
D. You can't deal with the information Amazon provides
59. Which one of the following will like the Kindle most9.
A. Professor. B. Students. C. Traveller. D. Businessmen.

第二节(共5小题,每小题2分,满分10分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
71 .She described all the things she had to do -one was to make her bed-from the moment she woke up until she flew out of the door for work.I suggested she experiment by not making her bed for two weeks.She was shocked, probably thinking I’d been raised by wolves in a forest.72
Two weeks later she went into my office beaming.She had left her bed unmade for the first time in 42 years-and nothing bad had happened.“And you know what?” she said.“I don’t dry my dishes anymore, either.”
73 .One was discovering that she had choices in her life that she had never seen before.The other was giving herself permission to be less that perfect.This story shows an important principle (原理) about managing time: No one can do it all.Each of us has to make choices and accept trade – offs.The problem is, many people choose in ways that put themselves and their health last.They take better care of their houses and cars than they do of themselves.74
So what is the solution? There’s an easy way.Decide what you want in your life, and put that first.On a daily basis, that should include regular meals, enough sleep and time with your family.Exercise, leisure, friendships and hobbies should also be regular aspects of life.75 .The choice is yours: whatever makes you feel good about yourself and your life.Take a nap.Take a walk.Take time to play the piano.Stop bringing your briefcase home from the office.Stop keeping your house as clean as your mother kept hers.Fill more of your time with want – to – dos instead of have – to – dos.

A.This woman had made two major breakthroughs (突破).
B.Above all, you needn’t do anything for yourself regularly.
C.They put everyone else’s needs ahead of their own.
D.However, she went along with my idea.

E.Most people do not take time to relax themselves.
F.The point is to do something for yourself every day.
G.A patient came to see me about the stress in her life.

D
FOREIGNEXCHANGE
ACLASSOFTHEIROWN

Name:SusanLane Age:22 Place:Reykjavik,Iceland,1994.
Cost:$7,000 Organization:AFS
Experience:“Ithinkitwasaturningpointinmylife.Ibegantounderstandmoreabout
myownculturebyexperiencinganothercultureandseeinghowotherpeoplelive.”
Name:SaraSmall Age:23 Place:Crivitz,Germany,1996.
Cost:$8,000 Organization:EFFoundation
Experience:“IlovethetravelingandImadealotoffriends.IfoundtheEuropeanschool
systemtobehardbutIamfluentnowinGermansoitwasworthit.Ididmissmyfamily
andfriendsinAustraliabutIwouldlovetodoitagain.”
Name:LeanneSmythe Age:20 Place:Minnesota,America,1994.
Cost:$6,000 Organization:SouthernCrossCultureExchange
Experience:“Ilearnthowtobereallyresponsible.ItwasgreattobeonmyownandIgot
onreallywellwiththefamilyIwaswith.Iwilldefinitelygobacksomeday.”
Name:DavidLinks Age:16 Place:Stuttgart,Germany,1996
Cost:$6,000 Organization:SouthernCrossCulturalExchange
Experience:“IwantedtotrysomethingthatwasverydifferentfromAustraliainculture.
InGermanyeverythingwasdifferentbutIsoongotsettled.ThefamilyIwaswithwere
greatandIreallyfeelasthoughIhaveasecondfamily.”
Name:TomJennings Age:21 Place:Conflans,France,1995.
Cost:$7,000 Organization:SouthernCrossCulturalExchange
Experience:“ThereweretimeswhenitwasdifficultbutIlikedit,experiencingadifferent
culture.Youjusthavetoplayeachsituationasitcomes.Ifthereisonethingyoulearn
whenyouareonastudent-exchangeprogramitishowtotakecareofyourself.”
Name:LindaMarks Age:19 Place:ChonburiProvince,Thailand,1994
Cost:$3,500 Organization:RotaryInternational
Experience:“It’slikearoller-coasterride,therearelotsofupsanddowns,butyoualways
comebackformore.Ihadafewproblemsbuttherewasalwayssomeonetoturntoand
thatwasgreat.”

67.Thestudentswhorefertoboththegoodtimeandthebadtimeinclude______.
A.SusanLaneandSaraSmall B.LindaMarksandDavidLinks
C.TomJenningsandLindaMarks D.LeanneSmytheandTomJennings
68.Thewritingabovewouldprobablybe______.
A.therecordsofstudents’activities
B.theforeignstudents’namecards
C.thenoticeaboutavisittoforeigncountries
D.theadvertisementfromaninternationaltravelservice
69.Thestudentwhovalueslearninganotherlanguageis______.
A.LindaMarks B.SaraSmall C.TomJennings D.LeanneSmythe
70.Howmanystudentsmentiontheculturedifferencetheyhaveexperienced?
A.Three. B.Four. C.Five. D.Six.

C
Reading about history is nice, but finding ties to long-ago historical events in your own backyard is really exciting.
In their heavily populated area, neighbors Adam Giles,13, and Derek Hann.12, uncovered pieces of glass that looked quite different from what’s used today.“After digging about two feet down, I came across an interesting bottle,” Derek said.The bottle had a “pontil scar” on the bottle, an indication that it was hand-blown rather than machine made.It also had the name “Fraser” on one side.
Adam found remains of a green bottle and some very thick brown glass—again, far different from today’s.
After doing research on the computer, the boys contacted Aimee Wells of the county’s Cultural Resources office.She showed them a computer program that digitally puts old maps over modern satellite photographs.
Bingo! Their back yards were once part of a military(军事的) encampment(营地) called Camp Alger used by Ohio soldiers on their way to fight in the Spanish-American War in 1898.
So how do a few bottles get connected to a brief war that was more than a century ago? “We get there by good judgment,” Wells said.“We know the time period of the bottles and what happened in that area.” Anyone can dig a hole, but archaeologists seek a deeper understanding.How do objects found relate to things around them?
When Derek and Adam realized that a solider might have held that Fraser bottle 110 years ago, they wondered what he might have been thinking.What did he see as he looked around him? How did he pass the time waiting to go into battle?
Historical records show that while waiting for orders, the soldiers in and around Camp Alger played baseball, played instruments and walked seven miles to the Potomac River once a week for baths.A spread of strange fever forced the closing of the camp, and there are no buildings to study.“What’s left is only what’s in the ground,” said Wells.
Derek’s and Adam’s back yards have joined the 3,400 places listed on the county’s register of archaeological sites.The boys were given tips on how to dig effectively and safely, and on how to document the location of items found.
The official record of their finds serves as another piece of the puzzle for historians seeking to form a more complete story of what happened.
“Not everyone is going to have historical objects in their own yard,” Wells said.“That’s okay.Make your own time capsule and bury it.What would you want people to know about your life years from now?”
63.What is the passage mainly about?
A.How Adam Giles and Derek Hann dug out the remains of an ancient military encampment.
B.What Adam Giles and Derek Hann found in their back yard and its relationship with an encampment.
C.The great contribution Adam Giles and Derek Hann made to the cause of archaeology.
D.The tips on how to dig out ancient objects buried under the ground safely and effectively.
64.From the passage, we can see that the boy’s discovery _______.
A.includes all kinds of hand-made and machine- made glass.
B.has helped historians find out what happened in 1898.
C.couldn’t have been meaningful without Aimee Wells’ help.
D.has added the county to the list of archaeologist sites.
65.When Wells said “We get there by good judgment.” (Paragraph 6), she meant that_______.
A.they have established the ties to Camp Alger by finding out the time period of the bottles.
B.they have figured out how to get to the place where the brief war happened.
C.they have managed to dig out the bottles in the back yard safely with common sense.
D.they were able to locate the soldiers who used the Fraser bottles 110 years ago.
66.Which of the following fits the description of historical records?
A.The soldiers in and around Camp Alger delighted in playing basketball in their spare time.
B.When Camp Alger was forced to close, all the buildings there were destroyed.
C.The soldiers in and around Camp Alger often buried some bottles underground as time capsules.
D.Camp Alger was forced to close because of a spread of a strange fever.

B
Daniel Defoe (about 1660~1731) was an important novelist in the English literature(文学). When he was young, he served as a soldier and had been to Spain, Italy, France and Germany. At the same time, he went in for politics. He cared much about the development of capitalism(资本主义). He had written a lot of articles against it and he was put into prison twice for that. It was not until that he was nearly sixty that he began to write the famous novel “Robinson Crusoe”, which was published in May, 1709. It spread so rapidly that the story was known to every hosehold very soon.
“Robinson Crusoe” can be divided into three parts. The first part is about Crusoe’s three voyages, the second part about his hunting, hiding in caves farming and his hard struggles against nature on a small island, the third about the things which happened after his return from the island. The second part is the body of the novel, in which Robinson’s characters are clearly shown.
Defoe wrote his novel in a simple style and his language is easy to understand. His novel writing set a milestone of the modern English novel. In his later part of life, He was in poor health and lived very poorly. He died on April 24, 1731.
6. Deniel Defoe was ______ and the writer of ______.
A.an Englishman, “A Tale of Two Cities” B.an American, “A Million Pound Note”
C.a French, “The Lost Necklace” D.an English, “Robinson Crusoe”
7. How old was he when he began to write his famous novel Robinson Crusoe?
A.He was in his sixties. B.He was in his fifties.
C.He was over 60. D.He was sixty.
8. Robinson Crusoe can be divided into ______ parts and the first is about _______.
A.two, his lonely life B.three, his characters
C.three, his journeys by sea D.four, his fame
9. “Every household” in this passage means ______.
A.all members of a family B.all people
C.every building D.persons living in the same house
10. What was Defoe’s contribution to the English literature?
A.He wrote a very interesting story.
B.He made people happy while reading his story.
C.He set a milestone of the modern English novel.
D.He was active in politics and was against capitalism.

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号