When electricity was first invented, people refuse to believe such a thing .

A . administer ammonia smelling salts B . check for serious burns on the body C . determine if he is breathing D . massage vigorously to restore circulatio

A . secure the electric supply B . ventilate area to remove smoke C . start the fire pump and lead out hose D . apply foam

A . flush water over any burned area of the patient B . apply ointment to the burned areas on the patient C . get assistance to shut down electrical power in the area D . remove the patient from the vicinity of the live electrical equipment or wiring

A．sells B．sell C．sol D．selling

Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, way back in the eleventh century B.C. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and authority. In the Far East in ancient times, the umbrella was allowed to be used only by royalty or by those in high office. In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans. During the Middle Ages, the use of the umbrella practically disappeared. Then it appeared again in Italy in the late sixteenth century. And again it was considered a symbol of power and authority. By 1680, The umbrella appeared in France, and later on in England. By the eighteenth century, the umbrella was used against rain throughout most of Europe. Umbrellas have not changed much in style. during all this time, though they have become much lighter in weight. It wasn't until the twentieth century that women's umbrellas began to be made, in a whole variety of colors. The first use of umbrella was as ______. A．protection against rain B．a shade against the sun C．a symbol of power D．a symbol of honor

In the early nineteenth century, people did not use stamps. They had to pay postage (邮费) when they received letters. Sometimes they didn't want to receive a letter at all, but they had to pay money for it. They were unhappy about this. The postage was high at that time, because the post offices had to send many people to get the postage. Rowland Hill was a school teacher in England. He was the first to think of using stamps in 1850s. He thought it would be much easier for people to use stamps. People could go to the post office to buy stamps and put them on envelopes before they sent the letters. The post office could just put seals (邮戳). on the stamps so that people could not use the stamps again. In this way, the post office did not need to send post men to get postage. It only needed fewer postmen to send letters. People began to use stamps ______. A．at the beginning of the nineteenth century B．in the middle of the nineteenth century C．more than two hundred years ago D．when people first sent letters and postcards.

A．1564. B．1761. C．Doesn't say.

A．774 BC B．775 B C．776 BC D．779 BC

Much of opposition to The Origin of Species arose from Darwin's claim that all living creatures, including man, are somehow related. Many people were outraged by the suggestion that man shared a common ancestor with animals such as apes and monkeys. They attacked Darwin for saying that man had descended from the apes. But Darwin never actually said this. He believed that modern men and modern apes have both descended from the same ancestor. But at some time in pre-history, millions of years ago, men and apes began to develop separately, and ever since have continued to take on different characteristics. Today, more than 90 years after Darwin's death, this is the opinion which scientists continue to hold. In his works, Darwin described the progression of life from its earliest forms. First came the invertebrate-creatures without a backbone. Then invertebrates evolved into fish; fish into amphibians; amphibians into reptiles; and reptiles into birds and mammals. Fossil remains found after his death show that Darwin was right. Perhaps the most amazing fact about his theory is that he managed to work it out with the aid of only a few fossil discoveries. Fossil remains were not the only information which we now possess but which Darwin lacked. He did not know that apes have the same diseases as men; nor that they and men have the same kind of blood. Nor did he know about the modern uses of radiation which enable scientists to tell the age of fossil remains and so estimate the speed at which evolution has taken place. Which of the following best describes the passage as a whole？ A．The Origin of Species is a very significant book. B．Darwin's discoveries were proved to be right though the Origin of Species was severely attacked. C．The evolution of men has gone through a very long process. D．It was impossible for Darwin to prove his ideas only with the aid of fossils.

Union. A.beneficial B.artificial C.commercial D.financial

A．A.1770 B．B.1780 C．C.1776 D．D.1790

A．1960s B．1970s C．Early 1980s D．Late 1980s E．1990s

B.since C.while D.that

是 否