Millions of Americans return from long-distance trips by air, but their luggage doesn’t always come home with them. Airline identification tags（标签） can come loose, and the bags go who-knows-where. And passengers leave all kinds of things on planes.
The airlines collect the items and, for 90 days, attempt to find their owners. They don’t keep them, since they’re not in the warehouse business. And by law, they cannot sell the bags, because the airlines might be tempted to deliberately misplace luggage.
So once insurance companies have paid for lost bags and their contents, and they no longer belong to passengers, a unique store in the little town of Scottsboro, Alabama, buys them. The “Unclaimed Baggage Center,” is so popular that the building, which is set up like a department store, is the number-one tourist attraction in all of Alabama. More than one million visitors stop in each year and take one of the store’s shopping carts on a hunt for treasures.
Each day, clerks bring out 7,000 new items, and veteran（老练的）shoppers rush to paw over them. You can find everything from precious jewels to hockey sticks, best-selling novels, leather jackets, tape recorders, surfboards, even half -used tubes of toothpaste.
The store’s own laundry washes or cleans all the clothes found in luggage, then sells them. The Unclaimed Baggage Center has found guns, illegal drugs and even a live rattlesnake.
The store has a little museum where some of its most unusual acquisitions（获得物） have been preserved. They include highland bagpipes, a burial mask from an Egyptian pharaoh's tomb, and a medieval suit of armor.
Statistics indicate that less than one-half of one percent of luggage checked on U.S. carriers is permanently lost and available to the store.Paragraph1 shows that many passengers lose their luggage because______.
| A．they are forgetful |
| B．the owners of some luggage can’t be identified |
| C．they are in a hurry |
| D．there is no lost and foundoffice in many airports |
The reason why the airlines cannot sell the bags is that ______.
| A．they have to find the owners |
| B．they have to keep the bags as long as possible |
| C．some bags are expensive |
| D．they are likely to make a profit on the bags on purpose |
The Unclaimed Baggage Center is very popular because______.
| A．visitors may purchase something undervalued. |
| B．all thethings there are very cheap. |
| C．there's a large variety of goods. |
| D．visitors will enjoy some amusing activities there. |
What can we infer from the passage?
| A．A little museum will keep all the precious unclaimed baggage. |
| B．The things in the Unclaimed Baggage Center are articles for daily use. |
| C．The percentage of passengers who lose their baggage for ever is small. |
| D．People are not allowed to buy the illegal things in the store. |
What is the main purpose of the passage?
| A．To introduce an attractive place to tourists. |
| B．To remind passengers of taking care of their baggage. |
| C．To advise the airlines to find the owners of the unclaimed baggage. |
| D．To introduce how the unclaimed baggage in the airports is handled in America. |
The bee，like the ant，is a social insect（昆虫）.Bees live in large groups in box-like houses called hives or beehives.Every bee does a certain job that helps the other members of th
e group.In a beehive there live three kinds of bees:the queen bee，the male bees and the worker bees.The worker bees are born to be hard-working，flying from flower to flower collecting nectar（花蜜），which is made up mostly of sugar mixed with water.Bees draw this nectar into their honey bags where some sort of liquid in their bodies turns the nectar into honey.The newly made honey flows slowly from the bees’ underside and then is stored in small cells in the hive.When the weather turns cold，and there are no flowers for them to collect nectar，the stored honey will see them through the winter months.People who raise bees and depend on bees for a living are thought of as beekeepers.A bee-keeper usually keeps hundreds of hives，and removes honey from hives and keeps it in glass bottles or jars.Honey usually appears as a clear golden-colored liquid，but this lie
s in the sort of flowers from which bees have taken the nectar.
66.The best title of this passage is_______.
A.The Social Habits of Bees B.Three Kinds of Bees
C.The Production of Honey D.Bee Keepers’ Work
67.Bees are regarded as social insects because they_______.
A.form themselves into a good organization
B.have learned something from human society
C.need beekeepers to arrange their jobs
D.are born to work hard
68.The color of honey in its final stage depends on the_______.
A.type of flowers which the nectar is taken from
B.amount of sugar the beekeeper gives the bees
C.season in which the nectar is collected
D.quantity of water the bees are able to drink
69.Worker bees are always busy collecting nectar in order to_______.
A.help beekeepers to earn money from honey
B.turn it into honey
C.have something to eat in winter months
D.please the queen bee at the hive
70.During the course in which nectar change into honey_______.
A.water and sunlight are necessary conditions
B.some special liquid inside bees must be in the presence
C.many complex（复杂的）chemical changes will take place
D.worker bees have to bring up what they collected into their hive
Two scientists in California now think they can find out a person’s real age.Jeffery Bada and Patricia Masters do chemical tests on teeth.When we are born the amino acids（氨基酸）in our teeth are in one form.Then，as we grow older these amino acids change into a second form.Every year，one thousandth of the amino acids changed.So，by testing just one tooth and counting the number of amino acids in each form，Bada and Masters can work out a person’s age.They tested a tooth from the body of an Eskimo（爱斯基摩人）woman who died 1 600 years ago.From the appearance of her body，she was between 50 and 60 years old when she died.The tooth test put her age at 53.Then the Russian Government sent them a tooth from an old man in Georgia.The tooth said she was 99.Her real age was 96.The Russians are now hoping to send more teeth，from the very old people without birth certificates（出生证明书）.But there are problems.Some of the centenarians（百岁老人）have lost all their teeth.The others want to keep their teeth until they drop out naturally.So the Russian Government and the American scientists have to wait and hope.
61.Jeffery Bada and Patricia Masters believe that they can tell a person’s age according to_______.
A.an experiment on his bone
B.the shape and condition of his teeth
C.a test on the amino acids within his body
D.the changing form of amino acids in his teeth
62.According to the passage，which of the following statements is true?
A.The amino acids in an adult’s teeth may differ from those in a baby’s.
B.The number of amino acids in a 20-year-old man is different from that when he was seven.
C.Amino acids in one teeth changes without affecting their forms.
D.Scientists no
w can tell how long a person will live by testing his teeth.
63.Why are the two scientists asked to find out some very old Russians’ age?
A.Because the Government wants to know how long these old people can live.
B.Because they have no birth certificates.
C.Be
cause people who have tooth problems tend to live longer.
D.Because the Government wants to know their dates of birth and death.
64.In order to find out the exact age of some people over 100，both the Russian Government and American scientists_______.
A.should wait until all of them die
B.should pull out one of their teeth
C.have to wait for their teeth to drop out naturally
D.want to have their teeth pulled out
65.The central idea of the passage is_______.
A.the relationship between people’s teeth and ages
B.the relationship between amino acids and teeth
C.the contradiction（矛盾）between scientists and patients
D.the contradiction between the Government and the scientists
America is growing older. Fifty - eight years ago, only 4 out of every 100 people in the United States were 65 or older. To day, 10 out of every 100 Americans are over 65. The aging of the population will affect（影响）American society in many ways—education, medicine, and business. Quietly, the graying of America has made us a very different society—one in which people have a quite different idea of what kind of behavior（行为） is suitable（合适）at various , ages.
A person s age no longer tells you anything about his/her social position, marriage or health. There’s no longer a particular year in which one goes to school or goes to work or gets married or starts a family. The social clock that kept us on time and told us when to go to school, get a job, or stop working isn’t as strong as it used to be. It doesn’t surprise us to hear of a 29 - year - old university president or a 35 - year -old grandmother, or a 70 year - old man who has become a father for the first time. Public ideas are changing.
Many people say, “I am much younger than my mother— or my father— was at my age. ”No one says“Act your age” any more. We’ve stopped looking with surprise at older people who act in youthful ways.
67．It can be learnt from the text that the aging of the population in America ________ .
A. has made people feel younger
B. has changed people’s social position
C. has changed people’s understanding of age
D. has slowed down the country’s social development
68．The underlined word “one” refers to ________ .
A. a society B. America
C. a place D. population
69．“Act your age” means people should ________ .
A. be active when they are old
B. do the right thing at the right age
C. show respect for their parents young or old
D. take more physical exercise suitable to their age
70．If a 25 - year - old man becomes general manager of a big firm, the writer of the text would most probably consider it ________ .
A. normal B. wonderful
C. unbelievable D. unreasonable
The following are four forms about medicine. How to use the medicine is very important. Never take any by mistake.
1）Take the medicine with water, followed by one tablet every eight hours, as required. For further night - time and early morning, take two tablets at bedtime. Do not take more than six tablets in 24 hours. For Children six to twelve years old, go to your doctor for advice. Reduce dosage if nervousness, restlessness or sleeplessness takes place.
2）Each pill of the medicine taken three times every day for fourteen years old. As usual, a pill 6∶00 a. m., before breakfast, one before 11∶00 and one before sleep. Not for children under six years old and old persons with heart attack.
3）The medicine for a person with a fever. Once two pills a day before sleep for adult. Not take the medicine without fever. Half for Children under 12 years old. Children with a high fever, go to see a doctor.
4）The medicine taken three times a day, once five pills for adult with a cold. Half of the pills for children 10 years old. Take the medicine before breakfast, lunch, supper or before sleep.
60．Obviously a kind of medicine can’t be proper for ________, judging from the information.
A. children over twelve years old
B. some old persons with a fever
C. some old persons with heart attack
D. neither adults nor heart attack
61．When a person has a cold, he had better ________ .
A. have about more than fourteen pills a day
B. have twice a day
C. have four times a day
D. have nine pills a day
62．How many kinds of medicine are used for the children six years old?
A. All of them．
B. Three kinds of medicine.
C. Two kinds of medicine.
D. Almost not any medicine.
From the very beginning, Martin felt that he was bound up with（与……紧紧地在一起）his lovely little patient. One day, following some tests , Betty gave the doctor a big hug（拥抱）.
A few months later the doctor removed not only the tumour（肿瘤）, but also the entire lower left side of Betty’s gum（牙龈）and jawbone. Because Betty was so young, Martin was hopeful that her jawbone might regenerate.
Within three months, Betty’s tumour grew as large as an orange, changing the natural appearance of the left side of her small, delicate （ =" thin;" not strong）face. Soon she couldn’t even close her mouth, and as her eating problems worsened, Betty ‘s weight dropped from 20 kilos to 15. Martin knew from experience that it might invade the brain.
The only other possibility was thorough radiation therapy （放射疗法）. Night after night, Betty's father gave her injection, but the tumour remained as big as ever. Then one evening. Morgan noticed that the tumour had begun to change. It was actually becoming smaller! For two months her tumour appeared to be going away for ever. In the coming months, Betty’s tumour continued to appear. She was able to eat solid food once again. Her jawbone was regenerating. The tumour was gone.
67．What do you think the underlined word regenerate means? It means “________”.
A. lose one’s life
B. give a new life to
C. be made by hand
D. pass on from one generation to another
68．If Betty’s jawbone didn’t regenerate, the doctors ________ .
A. would rebuild her jaw
B. would continue the treatment
C. would use new medicine
D. could do nothing else
69．If the brain should be invaded, the result would ________.
A. prevent her growth
B. reduce her weight
C. cause her brain damaged
D. affect her eyesight
70．What did the doctors do two months later?
A. They continued their observations.
B. They gave up the operation on Betty.
C. They found out what caused Betty’s strange disease.
D. They declared that Betty’s strange disease was cured.