41.A hobby is something that you never get tired of—the more time you devote to it， the more fun you will have.

31.The whole world ()the unique opening ceremony of the Beijing 2022 Olympic Winter Games at the National Stadium in Beijing.

A. 　witnessed

B. 　have witnessed

C. 　were witnessed

D. 　are witnessed

42.We should take an active part in community service， which can enrich our life.

3. Passage Thirty-OneAdam Smith was the first person to see the importance of the division of labor.He gave us an example of the process by which pins were made in England.“One man draws out the wire， another strengthens it， a third cuts it， a fourth points it， and a fifth gives it a head.Just to make the head requires two or three different operations.The work of making pins is divided into about eighteen different operations， which in some factories are all performed by different people， though in others the same man will sometimes perform two or three of them.”Ten men， Smith said， in this way， turned out twelve pounds of pins a day or about 4，800 pins a worker.But if all of them had worked separately and independently without division of labor， they certainly could not have made twenty pins in a day and not even one.There can be no doubt that division of labor is an efficient way of organizing work.Fewer people can make more pins.Adam Smith saw this， but he also took it for granted that division of labor is itself responsible for economic growth and development and it accounts for the difference between expanding economies and those that stand still.But division of labor adds nothing new， it only enables people to produce more of what they already have.Adam Smith mentioned the number 4，800 in order to ().

47.The Great Wall is a great tourist ()drawing millions of visitors every year.

A. 　attention

B. 　arrangement

C. 　attraction

D. 　appointment

39.()great was the destruction that the earth-stricken region took decades to recover.

A. 　Very

B. 　Such

C. 　So

D. 　Too

3. Passage Thirty-FourMuch unfriendly feeling towards computers has been based on the fear of widespread unemployment resulting from their introduction.Computers are often used as part of automated (自动化的)production systems requiring a least possible number of operators， causing the loss of many jobs.This has happened， for example， in many steelworks.On the other hand， computers do create jobs.They are more skilled and better paid， though fewer in number than those they replace.Many activities could not continue in their present form without computers， no matter how many people are employed.Examples are the check clearing (交换)system of major banks and the weather forecasting system.When a firm introduces computers， a few people are usually employed in key posts (such as jobs of operations managers)while other staff are re-trained as operators， programmers， and data preparation staff.After the new system has settled down， people in non-computer jobs are not always replaced when they leave， resulting in a decrease in the number of employees.This decrease is sometimes balanced by a substantial increase in the activity of the firm， resulting from the introduction of computers.The attitudes of workers towards computers vary.There is fear of widespread unemployment and of the takeover of many jobs by computer-trained workers， making promotion for older workers not skilled in computers more difficult.On the other hand， many workers regard the trend toward wider use of computers inevitable.They realize that computers bring about greater efficiency and productivity， which will improve the condition of the whole economy， and lead to the creation of more jobs.This view was supported by the former British Prime Minister， James Callaghan in 1954， when he made the point that new technologies hold the key to increased productivity， which will benefit the economy in the long run.According to paragraph 2， without computers ().

5.I was ()the point of telephoning him when his letter arrived.

A. 　to

B. 　on

C. 　at

D. 　in

45.She gave us food and clothes and asked for nothing in return， which made us very grateful.

44.I would rather struggle for my dream than give it up and regret it later in my life.

35.You don’t have to pay for your flights: they’re ()in the price of your holiday.

A. 　concluded

B. 　held

C. 　settled

D. 　included