If spaceships were launched from space or from the moon, the absence of weight would permit the ships to be launched with great speed at reduced pressures. A relatively small explosion would be enough to send a ship off at a very fast rate. And, since there is no atmosphere in space as there is on earth, the spaceship would meet with no resistance. To illustrate this point, remember how strong the wind feels if we are traveling fast in a car; then imagine a car traveling through an area where there is no wind. The windless condition is comparable to the condition in outer space.

The first astronaut to walk in space, Leonov, and his companion, Beliaiev, began making preparations for the walk as soon as their spaceship was launched. The spaceship was equipped with a double door, which was fitted with bellows between the ship and the outside. This made it possible for the astronaut, in his space suit with oxygen supply, to go first from the air-filled ship to the bellows. Then the air was let out of the bellows, and, while the man stepped outside, the air inside the ship remained at normal pressure. If the door had opened directly into space, the air in the ship would have rushed out and been lost when the door opened.

Leonov and Beliaiev practiced testing the doors several times after they had begun revolving around the earth. When the time came for Leonov to go out, his companion helped him attach the cable that was to keep him from floating away from the ship. Then Leonov entered the bellows, and the door closed behind him. As the air was let out of the bellows, he felt his suit swell up because of the air pressure inside.

26、the lack of something (Para. 1)

27、to allow/let something to happen (Para. 1)

28、an opposition from one force to another (Para. 1)

29、similar to something else in quality (Para. 1)

30、a tool used to blow air (Para.2)

31、not unusual (Para.2)

32、straight (Para.2)

33、turning around or moving in a circle (Para.3)

34、 to connect one thing to another (Para.3)

35、to enlarge or expand in size (Para.3)

Paragraph Ten

With the construction of Olympic venues, Beijing has experienced a major overhaul of its urban infrastructure. New subway lines have opened and others are currently being built. New transport facilities and the green environment around Olympic sites have helped real estate prices to skyrocket in these areas.

The “Olympic E______” is evident in Beijing.

Paragraph Nine

Many of the modern world’s most famous discoveries and inventions were not made by scientists, but by non-professional inventors. Often, these inventors have such unusual ideas that they were laughed at. But people like these, working on their own, gave us many of the things that we use everyday in our life.

Many inventions were made by a______ inventors.

Altogether, American consumers today owe about 1.3 trillion dollars.

[46. There is some danger in taking on debts, however, when the economy slackens, and employers lay off workers, families that lose breadwinners often fail to make the payments on their debts. ]If they fall behind too far on these responsibilities, they run the risk of having their houses, cars, or other items taken over or repossessed by the lenders.

But in the U.S. economy, most people are lenders as well as borrowers. Normally a family has a saving account, money that is, in effect, loaned to a saving institution in return for interest.[47. Most also have life insurance, the insurance company takes the premiums, guarantees a payment to be made when a policy-holder dies, and meanwhile invests some of the money.]

Many experts recommend that families save no less than 5 percent of their disposable income for further needs.

Many countries depend much less than the U.S. does on the marketplace to decide who will sell goods and in what quantity. In communist and socialist countries, government agencies decide the amount, type and price of many goods to be produced. Many or all places of economic activity such as factories, farms, mines, utilities and transportation network are owned chiefly by the government.

In the U.S., too, the role of government is growing.[48. Corporate leaders and economists are wondering how much regulation the market system can take before it loses its ability to respond to consumer needs.]But the system continues to function, and business continues to work for more profits and consumers for more income, knowing that they will be able to retain much of their wealth.

Most men and women learn early that society places a certain monetary value on various professions and skills, based again on the law of supply and demand. Doctors, who must study long years to develop specialized skills and are therefore in short supply, earn more than labors who have little training and many competitions for the same job.

That is not to say that good jobs and more wealth are guaranteed to Americans. The U.S. economy has been plagued periodically with two major problems: high unemployment and the rising cost of living - inflation.

The two problems are closely linked.[49. When prices climb faster than people’s incomes, families sooner or later are forced to cut back on buying in order to make each end meet.]

That limits what business can produce and how many people they can employ.[50. It may even start a temporary decline in the country’s economy - such as the one that ran from late 1973 to the spring of 1975, when millions of people were laid off from their jobs.]

Still, despite all of the problems that exist, most Americans prefer the U.S. economic system to any other, as the result of poll after poll indicates.

Paragraph Eight

Every summer thousands of Americans go to Europe. Some go for a change of air, some to improve their minds, some go there because they are tired of making money, others because they are tired of not making money, and still others simply for a vacation.

Europe is an ideal d______ for many American tourists every summer.

Paragraph Seven

Every culture in the world believes certain superstitions. Even societies that are very rational and scientific are sometimes a little superstitious. For example, Americans consider “13” an unlucky number. Some people in the U.S. also believe that if Friday falls on the thirteenth day of the month, they will have bad luck.

It can be said that superstitions e______ in every society.

Paragraph Six

In the United States, not everyone is able to attend a four-year college or university. Many four-year colleges and universities are already too crowded. To give more people a chance to get a college education, many cities and towns have built junior community colleges that offer a two-year course of study in a wide range of subjects.

Junior colleges have been built to o______ more education opportunities.

Paragraph Three

Excessive pressure from schoolwork is probably the most common problem in urban areas affecting Chinese children’s development. Giving children time to dabble in many fields is vital for their physical and mental development. In the process, they will gradually show a liking for particular activities. Parents can help their kids make choices.

“Less work, more p______” is recommended for urban children.

Paragraph Four

Beginning in the 1980s, higher incomes and greater job opportunities in China’s large cities have been enticing growing numbers of farmers into becoming migrant workers. Currently, the migrant population has reached an unprecedented level. About 200 million farmers have left their homes to earn a living in cities.

In China the population is drifting from r______ areas into cities.

Paragraph Five

A bean which has increased enormously in importance in recent years is soybeans. A native of eastern Asia, it is one of the oldest crops known to man. It was first recorded in 2838 B. C. Its value has long been known in the Orient, but only recently has it attracted the attention of European and American scientists.

The value of soybean was u_______ by the European and American scientists.

Paragraph One

A friendly dog can make older people feel less isolated — and it appears to make little difference if that wagging tail belongs to a robot doggie or the real thing. Researchers compared a real dog with a far-from-lifelike robot dog, to see how residents of three U.S. nursing homes would respond.

Robot as good as real dog can ease l____ people.