1.

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.The failure 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 and why certain procedures go wrongA registry also helps surgeons learn quickly whethera specifictype of implant is particularly problematic,"Every country that has developed aregistry 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.1.What is the problem with hip or knee replacements in the U.S.?（）

2.

In china, it is relatively usual to ask people their age, but in the west, this question is generally regarded as impolite. This is particularly true 61 women, and even more 62 if the inquirer is a man. However, it is 63 to ask children their age, and some adults may not mind 64 either. In fact, some elderly people are quite happy to 65 their age, especially if they feel they look young 66 their age. Nevertheless, it is not very wise to ask a(n) 67 question like ―How old are you?‖if elderly people want to talk about their age, and perhaps receive a compliment on how young they look, they may easily 68 the topic themselves, and ask the other person to 69

how old they are. 70 such a situation, it is quite acceptable to discuss age 71.They normally expect to be complimented on their youthfulness, though rather than 72 that they look very old! 73 westerners do not usually ask people directly how old they are, this does not 74 that they are not interested to know how old other people

are. They may ask 75 for the information, 76 they may try to 77 the topic indirectly. Sometimes discussions about educational 78 and the number of years of working experience may provide some 79 , but this is not always the 80 . 77.

3.8.My father asked __ to help with his work.

4.Passage OneOceanography has been defined as "The application of all sciences to the study of the sea.Before the nineteenth century scientists with an interest in the sea were few and far between. Certainly Newton considered some theoretical aspects of it in his writings, but he was reluctant to go to sea to further his work.For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question"What is at the bottom of the oceans?" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineer had to know the depth profile (起伏形状) of the route to estimate the length of cable that had to be manufactured.It was to Maury of the US Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings (测水深) were taken to investigate the depths of the North Atlantic and Pacific Oceans. Later, some of his findings aroused much popular interest in his book The Physical Geography of the Sea.The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was taken out for repairs it was found to be covered in living growths, a fact which defied contemporary scientific opinion that there was no life in deeper parts of the sea.Within a few years oceanography was under way. In 1872 Thomson led a scientific expedition ( 考察), which lasted for four years and brought home thousands of samples from the sea. Their classification and analysis occupied scientists for years and led to five-volume report, the last volume being published in 1895.The aim of the voyages Maury was responsible for in the 1840s was__________.

5.September 10th is____Day.

6. Let’s go to the airport a little earlier __________ we can choose better seats．

7. 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．22.查看材料.

8.

The Red Cross is 61 organization which cares for people who are in 62 of help. A man in a Paris hospital who needs blood, a woman in Mexico who was injured 63 an earthquake, and a family in India 64 lost their home in a storm may all 65 by the Red Cross.

The Red Cross exists in almost every country 66 the world . The World Red Cross Organizations are sometimes are sometimes called the Red Crescent( 新月 ) the Red Mogen David, the Sun , and the Red Lion . All of these agencies 67 a common goal of trying 68 people in neeD、

The idea of forming an organization to help the sick and 69 during a war started 70 Jean Henry Dunant. In 1859, he observed 71 suffering 72 a battlefield in Italy. He wanted to help all the wounded people 73 of which side they were 74 .The most important result of his work was an international treaty 75 the Geneva Convention( 日内瓦公约 ). It 76 prisoners of war, the sick and wounded, and 77 citizens during a war.

The American Red Cross 78 by Clara Barton in 1881. Today the Red Cross in the United States provides a number of 79

for the publiC、Such as helping people in need, teaching first aid, 80 water safety and artificial respiration, and providing blood.79.

9.Where did you have your supper?___

10.V. Daffy Conversation ( 15 points)56. Tom: Would you mind passing me the salt?Tony:__________.57. Amy: Do you think you could show me the way to the library?Ronald:__________.58. Peter: Did you miss the beginning of the concert yesterday?Andrew:__________.59. Simon: Could I see Dr. Brown, please?Gary:__________.60. John: I'd like to book five tickets, please, for the early morning flight to Paris on June lOth.Jane: Five tickets.__________.56__________。

11.Tina is unhappy now.___?

12.I suddenly realized that he was trying to _____ quarrelling with me.

13.Shanghai is one of the biggest____in our country

14.The two great men wrote those letters in___

15.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.NASA can tell that vegetation is growing back because of __.

16.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___________.

17.

Passage Three

Eating an apple a day doesn' t keep the doctor away, but it does reduce the amount of trips you make to the drug store per year. That ' s according to a new study that investigates whether there' s any truth in the old saying.A team of researchers led by Dr Matthew Davis, of the University of Michigan School of Nursing,asked 8,399 participants to answer survey questions about diet and health. A total of 753 were apple eaters, consuming at least 149g of raw apple per day. The remaining 7,646 were classed as non-apple eaters. When both groups answered questions on trips to the doctor and trips to the drug store per year,the apple eaters were found to be 27% less likely to visit the druggist for drugs.Trips to the doctor were not significantly affected by apple consumption, though. "Evidence does not support that an apple a day keeps the doctor away. However, the small number of US adults who eat an apple a day does appear to use fewer prescription medications," the study concludes.Apple eaters were also found to be less likely to smoke and be more likely to have a higher educational attainment than non-apple eaters. While apples do not compete with oranges, they docontain some immune (免疫的) system-increasing vitamin C, which may be why apple-eaters visit the druggist less. With over 8mg of vitamin C per medium-sized fruit, an apple can provide roughly 14% your daily recommended intake.Previous studies have also linked apple consumption to a lower risk of Type 2 diabetes (二型糖尿病) ,improved lung function and a lower risk of colon (结肠) cancer.44. How many non-apple eaters answered survey questions in the research?

18.The basketball team was___（luck)to lose in the final minute of the game.

19.I'll let you know___he comes back.

20.

Themarket is a concept.If you are growing tomatoes in your backyard for sale you areProducing for the market.You might sell some to your neighbour and some to the managerof the local supermarket.But in either case,you are producing for the market.Your efforts are being directed by the market.If people stop buying tomatoes,you will stop producing them.

If you take care of a sick person to earn money,you are producing for the market.If your father is a steelworker or a taxi driver or a doctor or a grocer(杂货商），he is producing goods or service for the market.

When you spend your income,you are buying things from the market.You may spend money in stores,supermarkets and gas stations.Still you are buying from the marketWhen the local grocer hires you to drive the delivery truck,he is buying your labor in thelabour market.

The market may seem to be something abstract(抽象的）。But for each person or businessman who is making and selling something,it is real.If nobody buys your tomatoes,itwon't be long beforeyou get the message.The market is telling you something.It's tellingyou that you are using energies and resources in doing something the market doesn't wantyou to do!2.All of the following acts are producing for the market EXCEPT （）