阅读下列短文，从每题所给的四个选项中，选出最佳选项。

　　Many people believe they are supposed to drink eight glasses of water a day，or about two liters．Why？Because that is what they have been told all their life But a new report offers some different advice．Experts say people should obey their bodies；they should drink as much water as they feel like drinking．

　　The report contains some general suggestions．The experts say women should get about two-point-seven liters of water daily．Men should get about three-point-seven liters．But wait-in each case，that is more than eight glasses．

　　There is an important difference．The report does not tell people how many glasses of water to drink．In fact，the experts say it may be impossible to know how many glasses are needed to meet these guidelines．This is because the daily water requirement can include the water content in foods．

　　People do not get water only by forcing themselves to drink a set number of glasses per day．People also drink fruit juices and sodas and milk．They drink coffee and tea．These all contain water．As you might expect，the Institute of Medicine says people need to drink more water when they are physically active．The same is true of those who live in hot climates．Depending on heat and activity，people could need twice as much water as others do．

　　All this，however，does not answer one question．No one seems sure why people have the idea that good health requires eight glasses of water daily．It may have started with a misunderstanding．In nineteen-forty-five，the National Academy of Sciences published some guidelines．Its Food and Nutrition Board said a good amount of water for most adults was two-point-five liters daily．This was based on an average of one milliliter for each calorie of food eaten．

　　But that was only part of what the board said．It also said that most of this amount is contained in prepared foods．

1．According to the report，how much water should people drink a day？

[　　]

A．8 glasses of water．

B．Less than 8 glasses of water．

C．More than 8 glasses of water．

D．No definite answer．

2．What seems to be reasonable according to the report concerning drinking water？

[　　]

A．To keep healthy，people had better force themselves to drink a set number of glasses a day．

B．Women should drink more water the men and both should drink more than 8 glasses a day．

C．People need to drink more water when they are doing sports or living in hot places．

D．Instead of drinking water，people are supposed to drink fruit juices and sodas and milk．

3．In the sixth paragraph，the writer mainly tells us________．

[　　]

A．why good health eight glasses of water daily

B．how the idea good health requires eight glasses of water daily affects people

C．the National Academy of Sciences mislead people in drinking water

D．how people got the idea of good health requires eight glasses of water daily

（河南省驻马店高中2010届高三摸底考试）

American cities are    36    other cities around the world． In every country, cities show the  37   of the culture. Cities contain the very   38   aspect(方面) of a society: opportunities for education, employment and so on. They also   39   the very worst parts of a society. Now American cities are changing, just   40   American society.  After World War Ⅱ, the population of   41   large American cities became smaller;   42   , the population in many Sun Belt cities increased. Los Angeles and Huston are cities   43   population increased. That people come into and out of the city shows the changing value of American society. During this time, in the   44   1940s, the people of the city became wealthier and they had more children. They need more   45 . They moved out to buy their own homes. They bought houses  46   the city, areas near a city where people live and there are not many offices or factories. During 1950s the American "dream" was to have a house outside the city. Now things are changing. The children of the people who   47   the cities in the 1950s are now adults. They   48   their parents want to live in the cities.  49   continue to move to cities in the Sun Belt. Cities are becoming   50   and the population is increasing in   51   states as Texas, Florida and Californian.  52    are moving to more established cities, such as Boston and Chicago. Many young doctors, lawyers and bosses are moving back into the city. They prefer the city   53   the outside of it, because their jobs are there; they are afraid of the oil shortage; or they just   54   the excitement and opportunities which the city offers. A new class is moving into the cities—a wealthier and  55  mobile class.

36．A．different from     B．similar to       C．better than           D．worse than

37．A．value            B．worth                  C．importance          D．expense

38．A．well             B．good                   C．better                  D．best

39．A．content        B．get                      C．contain                D．include

40．A．likely            B．as                       C．while                  D．when

41．A．all              B．most                   C．few                    D．much

42．A．but             B．and                     C．however              D．although

43．A．its              B．which                 C．where                 D．that

44．A．late             B．later                    C．lately                   D．latter

45．A．space           B．spots                   C．time                    D．food

46．A．beside          B．downtown           C．countryside         D．outside

47．A．arrived         B．left                      C．reached               D．entered

48．A．as              B．like                     C．dislike                 D．unlike

49．A．Some           B．All                      C．Several                D．Both

50．A．big              B．noisy                   C．larger                  D．wonderful

51．A．such            B．these                   C．those                  D．many

52．A．The others    B．The ones             C．Peoples               D．Others

53．A．than             B．better than           C．rather than           D．to

54．A．win             B．enjoy                   C．earn                    D．own

55．A．very             B．and                     C．more                   D．or