39.We must ()that the telegram arrives in time.

35.Until the beginning of the Industrial Revolution， man＇s knowledge of the physical world().( )

A. both had limits and superficiality

B. was both limited and superficial

C. was worth limits and superficial both

D. had both limits and superficial

1、In China it is relatively usual to ask people their age， but in the West this question is generally regarded as impolite. This is particularly true _11()women， and even more so if the inquirer is a man. However， it is very _12()to ask children their age， and some adults may not mind being asked either. In fact， some elderly people are quite happy to _13()their age， especially if they feel they look young for their age. Nevertheless， it is not very wise to ask a direct question like “How old are you?”.If elderly people want to talk about their age， they may easily14()_the topic themselves， and ask the other person to guess how old they are . They normally expect to be complimented on their youthfulness， though rather than 15() that they look very old. Even tbough Westerners do not usually ask people directly how old they are， this does not _16()that they are not interested to know how old other people are. They may ask _17()for the information， or else they may try to 18() the topic indirectly. Sometimes discussions about educational_19()and the number of years of working experience may provide some clues， but this is not always the 20().16. ( )

A. mean

B. intend

C. include

D. conclude

48.Opportunities are always available ()one uses his mind.( )

A. as long as

B. as

C. unless

D. in case

27.During the ()two decades， research has greatly expanded our knowledge about the sleep and dreams.( )

A. pass

B. passed

C. past

D. pasted

1、In China it is relatively usual to ask people their age， but in the West this question is generally regarded as impolite. This is particularly true _11()women， and even more so if the inquirer is a man. However， it is very _12()to ask children their age， and some adults may not mind being asked either. In fact， some elderly people are quite happy to _13()their age， especially if they feel they look young for their age. Nevertheless， it is not very wise to ask a direct question like “How old are you?”.If elderly people want to talk about their age， they may easily14()_the topic themselves， and ask the other person to guess how old they are . They normally expect to be complimented on their youthfulness， though rather than()15() that they look very old. Even tbough Westerners do not usually ask people directly how old they are， this does not _16() that they are not interested to know how old other people are. They may ask _17()for the information， or else they may try to 18() the topic indirectly. Sometimes discussions about educational_19()and the number of years of working experience may provide some clues， but this is not always the 20().11. ( )

A. of

B. to

C. for

D. with

3、Believe it or not， optical illusion(错觉)can cut highway crashes. Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75percent using a simple optical illusion. Bent stripes， called chevrons (人字形)， painted on the roads make drivers think that they are driving faster than they really are， and thus drivers slow down. Now the American Automobile Association Foundation for Traffic Safety in Washington D.C. is planning to repeat Japan＇s success. Starting next year， the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes. Excessive speed plays a major role in as much as one fifth of all fatal traffic accidents， according to the foundation will conduct its tests in areas where speed - related hazards are the greatest - curves， exit slopes， traffic circles， and bridges. Some studies suggest that straight， horizontal bars painted across roads can initially cut the average speed of drivers in half. However， traffic often returns to full speed within months as drivers become used to seeing the painted bars. Chevrons， scientists say， not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower.The result is a longer lasting reduction in highway speed and the number of traffic accidents.2.On roads painted with chevrons， drivers tend to feel that()、( )

A. they should avoid speed – related hazards

B. they are driving in the wrong lane

C. they should slow down their speed

D. they are approaching the speed limit

44.To continue to oppose is to hold ()

A. Up

B. off

C. out

D. from

32.This committee selected the plan that seemed most()

A. feasible

B. permitted

C. evident

D. fair

20.Can you tell me ()about this city that makes people love it so much?( )

A. it is what

B. what it is

C. what is it

D. is it what

2、It is often said that politeness costs nothing. In fact， it seems that a little more politeness could save businesses £ 5 billion every year. Frequently hearing the phrase” thank you” or” well done” means the same to staff as modest pay rise. Praise and encouragement also makes employees more likely to work hard and stay in their jobs. In this way the business companies can save the cost of finding new employees. A third of 1， 000 workers surveyed by a consulting firm said they did not get thanked at all when they did well—and a further third said they were not thanked enough. In both cases， staff said they felt undervalued， meaning they were less likely to exert themselves and were more likely to look for employment elsewhere. The result of the survey shows that there would be around f 5.2 billion loss in productivity if the employees felt less appreciated.According to the firm， praising staff has the same positive effect as a 1 per cent pay rise—and works out much cheaper for bosses. Three out of four employees said that regular acknowledgement by their bosses was important to them， but only a quarter said they were actually owen as much praise as they felt they needed. The survey found that those in blue-collar and manual jobs were less likely to be given any recognition for doing well. But it seems that they most need such praise. In regional terms， Scottish staff felt most undervalued.Four out of ten workers said they were never thanked and eight out of ten said they would like more praise. However， workers in the North-East are less impressed by being praised by the boss， as only 69 per cent said they felt the need to be told “well done”regularly.Older employees and women need the most reassurance， according to psychologist Averil Leimon. She said that words of praise did more than creating a pleasant place to work—they could even promote profits.1.The survey indicates that politeness could save businesses a huge amount of money every year because().( )

A. politeness makes employees expect pay rise

B. politeness is less likely to make staff work harder

C. politeness helps employers find proper employees

D. politeness helps employers reduce the cost of staff employment