Part II Reading Comprehension(40 points)
Directions：There are 4 reading passages in this part．Each passage is followed by some questions or unfinished statements．For each of them there are four choices marked A，B，C and D．You should decide on the best choice and mark the corresponding letter on the Answer Sheet with o single line throught the center．


16、根据以下内容回答16-35题：
A well-documented body of information existing shows that noise call affect human in both physiological and psychological ways．
Hearing losses in particular occupations such as boiler-making and construction work are well known．In fact，however，we all find heating more difficult as our age．Young ears can distinguish a wide range of sounds from low to very high frequencies，while older ears lose the ability to distinguish high-pitched sounds．A comparison of some industrialized versus non- industrialized peoples suggests that this hearing loss may not be the must-be result of old age．
Furthermore，a closer examination of other data reveals economic effects．For instance，airports are currently operating at less capacity because of noise regulations which restrict their hours of operation．Job performance can be seriously affected by loud noise，especially if accu-racy and mental effort are involved．The use of outdoor areas for conversation is not possible for an estimated 5 to 10 million people who live or work in urban areas．When interference with television or speech or sleep is included，as many as 22 to 44 miHion people cab be said to have lost part of the use of their homes and grounds because of noise．Thus noise pollution is a serious environmental concern．Much more effort should be made to waru people of the grave effects which may stop from an excessively noisy environment．
Boiler-making and construction work are given as examples of__________ ．
A．noisy and hearing-affecting working environment
B．successful control of noise pollution
C．noise of very low or high frequencies
D．sources of high-pitched sound


17、According to the passage，the fact that many people have poorer hearing when they grow old is．
A．the must-be result of old age．
B．probably related to the long-time exposure to loud noise
C．because they cannot distinguish high-pitched sounds
D．because their gays aye no longer young


18、Because of noise pollution，many airports__________ ．
A．have to operate for a longer time
B．can not operate any longer
C．have to reduce their operation hours
D．have to close earlier than usual


19、Because of the loud noise，millions of people in urban areas__________ ．
A．cannot watch TV
B．cannot have normal conversations in outdoor areas
C．cannot sleep well during the night
D．cannot give speech in public


20、The best title for the passage might be__________ ．
A．Economic Cohsequences of Noise
B．Ways of Controlling Noise
C．Sources of Loud Noise
D．Noise Pollution


21、根据以下内容回答21-40题:
Happiness can be described as a positive mood and a pleasant state of mind．
According to recent polls sixty to seventy percent of Americans consider themselves to be moderately happy and one in twenty persons feels very unhappy．Psychologists have been study-ing the factors that contribute to happiness．It is not predictable nor is a person in an apparently ideal situation necessarily happy．The ideal situation may have little to do with his actual feel-ings．
A good education and income are usually considered necessary for happiness．Though both may contribute，they are only chief factors if the person is seriously under-educated or actually suffering from lack of physical needs．
The rich are not likely to be happier than the middle-income group or even those with very low incomes．People with college educations are somewhat happier than those who did not gra-duate from high school，and it is believed that this is mainly because they have more opportuni-ty to control their lives．Yet people with a high income and a college education may be less happy than those with the same income and no college education．
Poor health does not rule out happiness except for the severely debilitated or those in pain．Learning to cope with a health problem can contribute to happiness．Those with a good sex lifeare happier in general，but those who have a loving affectionate relationship are happier than those who rely on sex alone．Love has a higher correlation with happiness than any other factor．
It should be noted that people quickly get used to what they have，and they are happiest when they feel they are increasing their level no matter where it stands at a given time．
Children whose parents were happily married have happier childhoods but are not nece—ssarily happier adults．
The best formula for happiness is to be able to develop the ability to tolerate frustration，to have a personal involvement and commitment，and to develop self-confidence and self-esteem．
According to the article，happiness is greatly dependent upon__________ ．
A．happy childhood
B．great wealth
C．a feeling that conditions are improving over what they were
D．a college degree


22、Which of the following is most likely to contribute to happiness?
A．Being exceptionally good lookin9．
B．Having a lovin9，affectionate relationship．
C．Having a good paying job．
D．Meeting lots of people．


23、Which of the following attitudes or feelings is most likely to be found in happy people?
A．Having self-esteem．
B．Being sure of keeping everything they already have．
C．Never being jealous．
D．Knowing how to be charming．


24、 The passage iS mainly about__________.
A．the results of an opinion poll
B．what constitute the．best formula for happiness
C．the importance of wealth to happiness
D．why some people are happy and some are riot


25、Which of the following is NOT true according to the passage?
A．A happy person is most of the time in a good mood and happy．
B．Most Americans are more or less happy while about 5%of Americans are not．
C．People highly educated are not necessarily the happiest．
D．The writer implies that there must be a best formula for happiness．