1.根据以下资料，回答21-24题。 　　There Pictures from outer space now show us how much land has changed on earth．These images are taken by Landsat 7, a government satellite．The satellites have been used for 27 years．They reveal the clear-cutting of forests in the northwestern part of the United States．Pictures show the loss of rain forests in South America. 　　NASA's Darrel Williams speaks about the Landsat 7 Project．He said that an eruption caused trees to burn up in a large forest．Fifteen years later, pinkish images from space show that the trees and plant life are growing again．Williams says that clear-cut areas easily show up in the pictures．He wants Americans to look at how much land is being cleared of forests in our country. 　　Satellites have provided other information about changes on earth．In the past ten years, more than four miles have shrunk from glaciers in Alaska．Landsat 7 received these computer images of Glacier Bay in Alaska. 　　Hurricanes Floyd and Irene have damaged the coastline in North Carolina．Runoff from farms and silt have gone into the．ocean according to satellite images．Loss of trees and forests have caused hotter summers in southern cities such as Atlanta, Georgia. The Landsat 7 images are like pictures in a photo album．Instead of pictures of the family, the album shows changes around the globe in the past 25 years. 　　A new satellite, Terra, is going to be launched by NASA soon．It will be more advanced than Landsat 7 and will take important global pictures．Ocean temperatures and energy loss will be provided by Terra daily.23 Silt and heavy run-off from farms in North Carolina were caused by __.

2.

Passage Four

There are two common explanations for origin of tipping. The Oxford English Dictionary says tip was seventeenth-century underworld slang for —giveas in ― Tip me your money or your life. Opponents (85) of tipping will probably prefer this explanation, since it suggests the practice as originally a form of robbery. A less reputable, but nonetheless charming explanation is that in Renaissance( 文艺复兴 ) coffeehouses, boxes were set near the door, into which customers could drop money: These boxes, according to the story, bore the legend ― To Insure Promptitude, which was ultimately shortened to TIP. Whether it was a serving woman or a boss with his or her eye on depressing wages who first thought up the idea, the story does not say.

Tipping became common in England by the middle of the eighteenth century. Because it is ill-suited to a country without an established servant class,it did not catch on in America until after the Civil War, when former slaveholders suddenly found themselves having to pay the help and when new-rich industrialists adopted the European fashion. By the turn of the century, we had made the custom our own, and the American ― big tipper was on his way. Today, although the lines between bribery( 贿赂 ) and thanks for services remain as vague as ever, tipping has become universal, not least because, in an increasingly uncertain economy, it provides the growing service class with income that is at least as reliable as wages and that is less subject to tax review. Not surprisingly, government officials as among the few die-hards who still question the tipping system. They have a point too. Tippers ’ International Association estimates that U.S. workers get about $5 billion a year in tips.In the seventeenth century, tip was probably a word used by_____.

3.Nothing says “Happy Birthday!” like having a coin released in your honor by the United States Mint(铸币局)，and 2009 has become an especially festive year as the Mint rolled out nine different coins in honor of Abraham Lincoln’s 200th birthday.Four pennies with new designs on the reverse side were issued stsrting February 12. The image of a cabin represents his birthplace. Because Lincoln’s family was poor,and no one could have predicted his later importance,the actual cabin is long gone.Therefore the design is based on the “symbolic cabin” displayed at the Abraham Lincoln Birthplace National Historic Site in Kentucky.The other designs show Abraban taking a break to read a book, the young lawyer lincoln in front of the Illinois state capitol and a Lincoln-free image of the half finished U.S.Capitol dome as it looked during his time in office. These four coins-produced with today’s standard mix of 97.5 percent zinc and 2.5 percent copper-are intended for genernal circulation.The Mint also relwased five collectible coins that sell for more than their face value . Specialeditions of the four penny designs were produced with the metal content used in 1909:a mix of 95 percent copper and 5 percent tin and zinc . In addition, I the world of “bigger” money,2009has brought the Lincoln Commemorative One-Dollar Coin-made up of 90 percent silver and 10 percent copper-with an image that has a Gettysburg Address theme.Special editions of the 4collectible coins_______.

4.Hunting tools struck together may have been the first musical ______.填入____处的最佳答案是()。

5.根据以下资料，回答103-106题。 　　The world's oceans have warmed 50 percent faster over the last 40 years than previously thought due to climate change, Australian and US climate researchers reported Wednesday．Higher ocean temperatures expand the volume of water, contributing to a rise in sea levels that is covering small island nations and threatening to destroy the low-lying, densely-populated low regions around the globe. 　　The study, published in the British journal Nature, adds to a growing scientific chorus of warnings about the pace and consequences rising oceans．It also serves as a corrective to a massive report issued last year by the Nobel-winning UN Intergovernmental Panel on Climate Change (IPCC), according to the authors. 　　Rising sea levels are driven by two things: the thermal expansion of sea water, and additional water from melting sources of ice．Both processes are caused by global warming．The ice sheet that sits atop Greenland, for example, contains enough water to raise world ocean levels by seven meters, which would bury sea-level cities from Dhaka to Shanghai. 　　Trying to figure out how much each of these factors contributes to rising sea levels is critically important to understanding climate change, and forecasting future temperature rises, scientists say．But up to now, there has been a puzzling gap between the projections of computer-based climate models, and the observations of scientists gathering data from the oceans. 　　The new study, led by Catia Domingues of the Centre for Australian Weather and Climate Research, is the first to reunite the models with observed data．Using new techniques to assess ocean temperatures to a depth of 700 meters from 1961 to 2003, it shows that thermal warming contributed to a 0.53 millimeter-per-year rise in sea levels rather than the 0.32 mm rise reported by the IPCC. 105 What was the main finding of the study?

6.Convenience foods which are already prepared for cooking are _____in stores.

7.For generations，the Nganyi people of western Kenya have served as rainmarkers，helpinglocalcommunities decide when best to prepare their land and SOW their seeds.By observingsubtlechanges in nature that would be unnoticeable to most people--in air currents，theflowering andshedding of leaves of certain trees，the behaviour of ants，bird songs，etc-theyhave been ableto interpret weather paterns and provide valuable advise.But the irregular weather patterns brought by climate change mean the rainmakel's can nolongeruse those signs to make their predictions.And they don't have accDs8 to the technologiesavailableto meteorologists(气象学家).“ Climate change‘has come on so fast.People don’t know how to adapt or what.to plant，”says Obedi Osore.a traditmnal Nganyi weatherman.“0ur traditional crops are disappearingbecause thev cannot handle the new conditions.We need new strategies to handle climatechange.”Now a.British Canadian project is doing just that ， linking the rainmakers withgovernmentmeteorologists.The two groups get together each season and produce all agreedforcast to bespread using a variety of methods suited to communities where many cannot read on wnte—through ceremonies，public meetings and person to person communication.Both Darties arepleased with the collaboration.“I think the-two,sciences are equallyvalid.We are marrying our energies to help people better.”says Mr.Onunga，a Nyanyicommunity elder involed in the project.“results have been surprisingly good-the community agreed that the forcast wasaccurate.”savs Gilbert Ouma，a lecturer at the University of Nairobi.“Through this project we hope to learn what it is that we can share together to live today and to adopt to tomorrow.”says Professor Laban Ogallo，leader of the Nganyi projeet.Which of the following has been used by traditional Nganyi rainmarkers in weatherprediction?

8. 根据以下材料，回答21-35题 Drawing a picture is the simplest way of putting an idea down on paper．That is 21 menfirst began to write six thousand years ago or22．The alphabet we now use 23 down to usover a long period of time．It was developed from the picture—writing of ancient Egypt． Picture—writing was useful in many 24．It could be used to express ideas as well as 25．For example，a drawing of a26meant the object“man"． 27 a drawing of a man lying on the groud with a spear in him meant“28”． Besides the Egyptians，the Chinese 29 the American Indians also developed ways 30writing in pictures．But only 31much could be said this way．Thousands of pictures would have beenneeded 32 express all the ideas that people might have．It would have taken many thousand more toexpress all the objects33 to men．No one could34 so many pictures in a lifetime．Nor couldanyone learn the meaning of all 35 drawings in a lifetime．35.查看材料 }

9.The problem of environment protection has been studied _____

10. Fiftyyearsagonotmanypeoplewouldhavesomethingrepairedintheirhomes.Inthosedayslaborwasfairlycheapandmost peoplewouldhavethoughtitworthwhiletohavesomebodyrepairtheirthingsunlesstheywereverypoor.Today,however,itisquiteadifferentstory.Menandwomeninallwalksoflifeturntheirhandstoallkindsofjobsroundthehouse.Somepeoplehaveevensuccessfullybuilttheirownhouses.Thesejobshavebeenmadeeasiertodaybyusingpreparedmaterials.,IneveryhighstreetthroughoutBritainnowadaysthereisatleastone“DIY”shop.And ”do it yourself"isaboomingbusinessAlot of people visitedtheseshopsevery day becauseofthehighcostofpresent-daylabor. Fromthepassageweknowthat（）

11.

Food is very important.Everyone needsto1well if he or she wants to have astrong body.Our minds also need a kind of food.This kind of food is2.We begin toget knowledge even3 we are very young.Small children are 4 in everythingaround them.They learn5 while they are watching and listening.When they are getting older,they begin to6story books,science books....anything theyhike.Whenthey find something new,they love to ask questions and7to find out answers.Whatis the best8to get knowledge?ifwe learn by ourselves,we will get9knowledge,If we are10 getting answers from others and do not ask why we will neverlearn well.When we study in the right way,we will learn more and understand better.1,

12.To make the fish__ nice, she put in some sugar and wine vinegar.

13.The___（west)part of our country is to be developed.

14.One of the most interesting experiments in electronic communication I’ve ever seen is coming fromWave. It’s real-time e-mail,What that means is that as you’re typing a message in Wave,either anew massage or a reply ,the person you are writing to can see what you’re typing as you type it .Sounds awful, right?You don’t have to use W ave in this real-time way . It also works as a standard e-mail. What’s reallydifferent about Wave is that if you’re replying to a massage and the person you’re replying tohappen to be online,they can jump into the conversation at that point, and change what is an emailconversation into an instant message conversation or a chat.Wave right now is still closed to most users . And Wave isn’t yet connected to other communicationsystems,like regular e-mail , which means that the only people we can Wave with are other peopleon waves as well. So we don’t yet know what using Wave will be like once it gets crowded like e-mail . Also,the technology behind Wave is far more demanding on servers and the Internet itselfthan regular e-mail or chat,so we don’t know if the technology will work at scale .But Wave really is a current re-think of e-mail . A lot of people won’t like it . A lot of people didn’tlike e-mail either when it first showed up .but people will find real uses for Wave or whatever itbecomes, and it’s one of the most interesting new takes on communication . Even if you don’t likeit, it will make you think differently about e-mail.It is uncertain that Wave will work on a large scale because___________.

15.Passage One Win a week in England!You still don’t know what to do this summer? Well, here’s your chance to win a one-week language course in Kent, England! Free4Fun and ETC (English Travel Connections) are giving away two trips to Rochester. This history city is less than an hour’s drive from London and close to the sea resort of Herne Bay. It is also the home of one of England’s most famous writers, Charles Dickens. The town of Rochester is in Southeast England. Charles Dickens often wrote about it in his books. His home, Gad’s Hill, is there, too. A popular attraction is Rochester Castle, a large Norman fortress. Itwas built in the 11th century and rebuilt during the 14th century. Other attractions are Rochester Cathedral, which was built during the 13th century, and Dickens Centre. It has got its name in honor of Dickens himself.The trip to England includes:travel by train (via the Euro tunnel) to and from any railway station in Germany room and full board with a guest family for one week language course in small groups two trips to London large choice of sports and ntertainmentGerman-speaking advisors available 24 hours a day Interested? All you have to do is to answer the following question:When was Charles Dickens born?So, take the chance and send your answer by 1 May to:Free4Fun”Rochester”Free4Fun,24 Elphinstone Road, Hastings,2FQ6VJfax: 089/85 763-103e-mail:free4fun@netlight.comThe two winners will be contacted directly before 5 May. They will also be announced in the June issue of Free4Fun Good luck!For further information contact:phone: (03212)144 43fax: (03212)144 42e-mail:info@etc.comWhat activities can you participate in during the trip?

16.Although he gave the world such a__________ w,~pon, Nobel wasalways against wars and violence.应选( )

17.There is nothing more possible than a new hip or knee that can put the spring back inyour step.Patients receiving joint implants(移植）often are able to resume many of thephysical activities they love,even those as vigorous as tennis and hiking.No wonder.then,that joint replacement is growing in popularity.In the United States in 2007,surgeons performed about 806,000 hip and knee implants(the joints most commonly replaced),double the number performed a decade earlier.Though these procedures have become routine,they are not failure free.implants must sometimes be replaced,said Dr.Henrik Malchau,an orthopedic surgeon(矫形外科医生）at Massachusetts General Hospital in Boston.A study published in2007 found that 7 percent of hips implanted in Medicare patients had to be replaced withinseven and a half years.The percentage may sound low,but the finding suggests that thousands of hip patients eventually require a second operation,said Dr.Malchau.Those patients must endure additional recoveries,often painful,and increased medical expenses.Thefailure rate should be lower,many experts agree.Sweden,for instance,has a failure rate estimated to be a third of that in the United States.Sweden also has a national jointreplacement registry,a database of information from which surgeons can learnhow andwhy certain procedures go wrongA registry also helps surgeons learn quickly whetheraspecifictype of implant is particularly problematic,"Every country that has developedaregistry has been able to reduce failure rates."“Significantly,"said Dr.Daniel Berry,chief of orthopedic surgery at the Mayo Clinicin Rochester,Minn.A newly formed American Joint Replacement Registry will begin gathering data fromhospitals in the next 12 to 18 months.It's good news for those who are considering replacing a knee or hip.What is the problem with hip or knee replacements in the U.S.?（）

18.翻译：

Resources on land are beginning to grow less. The sea, however, still offers hope to supply many of man ’s needs.

19.

Coconut(椰子)is an unusual food for many reasons.It is one of the largest edible seeds produced by any plant.Its unusual contents also make it unique in the seed world—it consists of both“meat“ and “water” inside.The coconut meat is the white substance with which we are all familiar，as it is used extensively for cooking and flavorings;the coconut water is a white and sweet liquid.Portuguese(葡萄牙的) explorers gave the nut its name in the l5th century, referring to it as coco，meaning “ghost” in their language.The outside appearance of coconuts reminded them of a ghost’s face，and the tree has had that name ever since.

The coconut has varied uses.It is used to make various cooking oils for fast food restaurants around the world to make diet materials.The coconut fluid is a favorite drink in hot climates，providing a cool and refreshing beverage right off the tree.This water is also used by manufacturers of various sports drinks.Even the shell itself has many uses，including animal food and fertilizer.

And all these are only some of the uses found for the coconut fruit.The coconut tree， which

produces the nut，also produces many useful things.It’s no wonder that the coconut tree has been taken as “the tree of life”.The coconut got its name because of __________ .

20.

Most parents,I suppose,have had the experience of reading a bedtime story1their children.And they must have realized how difficult it is to write a2children'sbook.Either the author has aimed(定目标）too3,so that children can't follow whatis in his(or more often,her)story,4the story seems to be talking to the readers.

The best children's books are 5very difficult nor very simple,and satisfy(令人满意的）the6 who hears the story and the adult(成年人）who 7it.Unfortunately（不幸的是），there are in fact few books like this,8 the problem of finding the rightbedtime story is not 9to solve.This may be why many of the books regarded as10of children's literature(文学）were in fact written for11 “Alice in Wonderland"is perhaps the most obvious(明显）of thisChildren,left for themselves,often12the worstpossible interest in literature just leave a child in a bookshop or a13and he will morewillingly choose the books written in an unimaginative(开非想象的）way.orhavelook at the most children’s comics(连环图书），full of the stories and jokes which ate the rejectionsof teachers and righting-thinking parents.Perhaps we parents should stop14 to brainwash(洗脑）children into accepting（接受）our taste in literature.After all,children and adults are so15 that we parentsshould not expect that they will enjoy the same books.So I suppose we'll just have to compromise(妥协）over the bedtime story.9（单选）