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The 850 British Airways ______flew from Houston to London at its usual time.
A．fly
B．aircraft
C．plane
D．flight
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The 850 British Airways______ flew from Houston to London at its usual time.
A．plane
B．flight
C．fly
D．aircraft
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[A] Some archaeological sites have alwaysbeen easily observable—for example, the Parthenon in Athens, Greece, the pyramids of Gizain Egypt; and the megaliths of Stonehenge in southern England. But these sitesare exceptions to the norm. Most archaeological sites have been located bymeans of careful searching, while many others have been discovered by accident.Olduvai Gorge, an early hominid site in Tanzania, was found by a butterflyhunter who literally fell into its deep valley in 1911. Thousands of Aztecartifacts came to light during the digging of the Mexico City subway in the1970s.
[B]In another case, American archaeologistsRene Million and George Cowgill spent years systematically mapping the entirecity of Teotihuacan in the Valley of Mexico near what is now Mexico City. Atits peak around AD 600, this city was one of the largest human settlements inthe world. The researchers mapped not only the city’s vast and ornateceremonial areas, but also hundreds of simpler apartment complexes where commonpeople lived.
[C] How do archaeologists know where tofind what they are looking for when there is nothing visible on the surface ofthe ground？ Typically, they survey and sample (make test excavations on) largeareas of terrain to determine where excavation will yield useful information.Surveys and test samples have also become important for understanding thelarger landscapes that contain archaeological sites.
[D] Surveys can cover a single largesettlement or entire landscapes. In one case, many researchers working aroundthe ancient Maya city of Copan, Honduras, have located hundreds of small ruralvillages and individual dwellings by using aerial photographs and by makingsurveys on foot. The resulting settlement maps show how the distribution anddensity of the rural population around the city changed dramatically between AD500 and 850, when Copan collapsed.
[E] To find their sites, archaeologiststoday rely heavily on systematic survey methods and a variety ofhigh-technology tools and techniques. Airborne technologies, such as differenttypes of radar and photographic equipment carried by airplanes or spacecraft, allowarchaeologists to learn about what lies beneath the ground without digging. Aerialsurveys locate general areas of interest or larger buried features, such asancient buildings or fields.
[F] Most archaeological sites, however, arediscovered by archaeologists who have set out to look for them. Such searchescan take years. British archaeologist Howard Carter knew that the tomb of theEgyptian pharaoh Tutankhamun existed from information found in other sites.Carter sifted through rubble in the Valley of the Kings for seven years before helocated the tomb in 1922. In the late 1800s British archaeologist Sir ArthurEvan
Scientists in recent years have made giant leaps in the artificial production of skin, bones and tissue. While their research has been motivated by a desire to help accident and medical victims, their work is about to go commercial.
The burgeoning (萌芽) cosmetic surgery market has snapped up the technological advances. By the turn of the 21st century, changing your face or improving your body will be limited not by your imagination or desire, but by the size of your bank account.
And there is even work being clone on that, with the costs of cosmetic surgery being cut to make it affordable and accessible for the average woman and her partner.
"It's no longer a vanity thing, it's simply making use of the available technology to improve those parts of the body you might not be happy with," Cindy Clovetti, a Toronto-based skin and beauty care expert, said. "People who 10 years ago said they would never use a computer and would never get a boob job (胸部整形手术) are now surfing the web getting the latest information for their next operation. "
Latest figures in the United States indicate the number of patients receiving cosmetic surgery in 12 months will top the magic million within two years (there were 850 000 last year), while the number of men seeking image-improving operations has increased 35 percent in the past four years.
Breast implants are now very much a bread-and-butter job for many cosmetic surgeons and the big advances have been made in the development of bone implants which can produce instant high cheek bones, sculpture better shaped noses and ears and give men the chisel-shaped jaw that is always a sure-fire (必定成功的) chick-magnet (吸引女人的东西).
British futurologist Ian Pearson speculates that by 2020, up to 96 percent of body weight will be replaceable with the brain being the only organ not interchangeable. "By 2020 you could have a new face, or new skim. and by 2030 a fully working replacement body part. By the end of the 21st century, people will be able to get an entirely new body. "
The original purpose of developing artificial skins, bones and tissues is to ______ .
A．help accident and medical victims
B．advance cosmetic surgery
C．improve a person's body or face
D．motivate people's need for beauty
Coffee
Coffee probably derives its name from the Arabic "gahwah", although some etymologists connect it with the name Kaffa, a province in southwest Ethiopia reputed to be the birthplace of coffee. Coffee plants were taken to southern Arabia and placed under cultivation there about 500 years ago.
The history of coffee, although vague and obscure, is rich in legend. One of the tales surrounding the discovery of coffee is that of Kaldi, a goat herder. Bewildered by the weird antics of his flock, Kaldi is supposed (about A. D. 850) to have eaten berries of the evergreen bush on which the goats were feeding and, overjoyed at the feeling of exhilaration that he experienced, has been pictured as dashing off in excitement to proclaim his great find to the world.
The stimulating effect of coffee was soon discovered and taken advantage of in connection with the long religious service of the Muslims; but the strictly orthodox or conservative section of the priesthood claimed that it was an intoxicating beverage prohibited by the Koran. Those who used it were threatened with severe penalties. Nevertheless, coffee drinking spread rapidly among Arabian Muslims, and its growth and use became general in Arabia.
The early record of coffee in Europe, where it was introduced into one country after another during the 16th and 17th centuries, is filled with accounts of its use as a religious, political, and medical potion, its rises and falls in favor, and its prohibition or approval. Coffee gained its first real popularity as a beverage in the coffee houses of London.
In the first known coffee advertisement, a handbill produced in 1652 (original in the British museum), proclaimed that coffee "quickens the spirits, and makes the heart lightsome.., is good against sore eyes".
Continental Europe became well implanted with the idea of coffee, and the coffeehouses flourished in most European countries later in the 17th century. In the major cities of North America, coffeehouses also became popular, starting about 1689. The first license to sell coffee in the Merchants' coffeehouses, established in New York in 1737, is claimed by some authorities to have been the "birthplace of the American Union".
Until the close of the 17th century, the world's rather limited supply of coffee was obtained almost entirely from the province of Yemen in southern Arabia. But, with the increasing popularity of the beverage, the propagation of the plant spread rapidly from southern Arabia to many other places all over the world.
By the 20th century, coffee has become responsible for much of the income of many countries lying between the Tropic Capricorn and the Tropic of Cancer. Although practically every country within this area produced some coffee, the greatest concentration of production became centered in the western hemisphere. This began to change, however, toward the middle of the century as the growth of coffee in Africa began to assume major importance.
According to this author, the name of Coffee seems to come from______.
A．the name of a province
B．the name of a plant
C．the name of the finder
D．the Arabic word "gahwah"
A．1921.
B．1931.
C．1945.
D．1950.
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