Ideas______from one's own experience are sometimes more valuable than those from books.

The houses in this area were all erected in______of housing regulations.

Directions: em>Write an essay of no less than 200 words on the topic given below

Bacteria are sometimes ______ too small to be seen without a microphone.

"I have great confidence that by the end of the decade we'll know in vast detail bow cancer cells arise," says microbiologist Robert Weinberg, an expert on cancer. "But," be cautions, "some people have the idea that once one understands the causes, the cure will rapidly follow. Consider Pasteur, he discovered the causes of many kinds of infections, but it was fifty or sixty years before cures were available." This year, 50 percent of the 910,000 people who suffer from cancer will survive at least five years. In the year 2000, the National Cancer Institute estimates, that figure will be 75 percent. For some skin cancers, the five-year survival rate is as high as 90 percent. But other survival statistics are still discouraging—13 percent for lung cancer, and 2 percent for cancer of the pancreas. With as many as 120 varieties in existence, discovering how cancer works is not easy. The researchers made great progress in the early 1970s, when they discovered that oncogenes, which are cancer-causing genes, are inactive in normal cells. Anything from cosmic rays to radiation to diet may activate a dormant oncogene, but how remains unknown. If several oncogenes are driven into action, the cell, unable to turn them off, becomes cancerous. The exact mechanisms involved are still mysterious, but the likelihood that many cancers are initiated at the level of genes suggests that we will never prevent all cancers. "Changes are a normal part of the evolutionary process," says oncologist William Hayward. Environmental factors can never be totally eliminated; as Hayward points out, "We can't prepare a medicine against cosmic rays." The prospects for cure, though still distant, are brighter. "First, we need to understand how the normal cell controls itself. Second, we have to determine whether there are a limited number of genes in cells which are always responsible for at least part of the trouble. If we can understand how cancer works, we can counteract its action." The example of Pasteur in the passage is used to ______.

The great chariot of society, which for so long had run down the gentle slope of tradition, now found itself powered by an internal combustion engine. Transactions and gain【C1】______a new and startling【C2】______force. What forces could have been【C3】______powerful toj smash a comfortable and【C4】______world and institute in its place this new society? There wias no single massive【C5】______. It was not great events, single adventures, individual laws, or charming【C6】______which【C7】______about the economic revolution. It was a process of internal growth. First, there was the gradual emergence of national political【C8】______in Europe. A second great current of change was to be found in the slow decay of the religious spirit under the【C9】______of the skeptical, inquiring, humanist views of the Italian Renaissance. Still another【C10】______current lies in the slow social changes that eventually【C11】______the market system possible. In the【C12】______of this change, power naturally began to gravitate into the hands of those who understood money matters—the merchants. Perhaps most important of all in the pervasiveness of its effect was a rise in scientific curiosity.【C13】______the world would wait until the age of Adam Smith for its【C14】______burst of technology, the Industrial Revolution could not have taken place had not the ground been prepared【C15】______a succession of basic sub-industrial discoveries. No single one of these currents, acting by itself, could have turned society【C16】______. Indeed, many of them may have been as much the【C17】______as the causes of a great convulsion in human organization. History turns no【C18】______corners, and the whole vast upheaval sprawled out over time. Evidences of the market way of life sprang up side by side with older traditional ways, and remnants of the former day【C19】______long after the market had for all practical purposes taken over the【C20】______principle of economic organization."

Customers may also be permitted to______their current accounts for a short period in anticipation of a credit item coming in.

Typical of the grassland dwellers of the continent ______, or pronghorn.

Black people are by no means______white people.

He was______with the deadly disease when he was 14, and has suffered with it for 10 years.

He was not ______ to the club because he wasn't a member.

Questions 8 to 10 are based on the passage you have just heard.

A good modern newspaper is an extraordinary piece of reading. It is remarkable first for what it contains: the range of news from local crime to international politics, from sport to business to fashion to science, and the range of comment and special features (特写) as well, from editorial page to feature articles and interviews to criticism of books, art, theatre and music. A newspaper is even more remarkable for the way one reads it: never completely, never straight through, but always by jumping from here to there, in and out, glancing at one piece, reading another article all the way through, reading just a few paragraphs of the next. A good modern newspaper offers a variety to attract many different readers, but far more than any one reader is interested in. What brings this variety together in one place is its topicality (时事性), its immediate relation to what is happening in your world and your locality now. But immediacy and the speed of production that goes with it mean also that much of what appears in a newspaper has no more than transient (短暂的) value. For all these reasons, no two people really read the same paper, what each person does is to put together out of the pages of that day's paper, his own selection and sequence, his own newspaper. For all these reasons, reading newspapers efficiently, which means getting what you want from them without missing things you need but without wasting time, demands skill and self-awareness as you modify and apply the techniques of reading. A modern newspaper is remarkable for all the following except its ______.

Gore made a call to Bush to ______ his defeat in the election, but he soon retracted it as word spread that the ballots had be recounted.

"Before, we were too black to be white. Now

At the same time

Of course

In a recent survey

My neighbor tended to react in a heat and ______ way.