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Long-distance runners may at times worry about their heart healthwhile taking part in the

events. But astudy finds that heat stroke (中暑) fellsmany more runnersthan ____76____ a heart problem. Heat stroke can damage a person’s brain, heart, kidneys and ____77____.

And new data shows the toll it takes. Researchers ____78____ health records frommore than 130,000 runners who competed in long-distance events during a seven-year span.Theanalysis ____79____that distance runners were 10 times more ____80____ to experienceheat stroke thanserious heart problems. All the fatal or life-threatening events were ____81____heat stroke.

The researchersadvise runners to take 10 to 14 days to adjust to the climate ____82____ takinga serious run in a hot region. And they sayrunners should ____83____taking part in the event if they’ve been sick recently.

____84____ one day runners will be installed some internal temperature controller that can keep their body temperature normal. But for now runners should simply ____85____their best to keep cool.

76、_______

A.is

B.has

C.do

D.does

77____A.head

B.arms

C.muscles

D.feet

78____A.explored

B.examined

C.inquired

D.required

79____A.revealed

B.realized

C.reasoned

D.recalled

80____A.possible

B.hardly

C.timely

D.likely

81____A.in

B.of

C.from

D.on

82____A.during

B.before

C.after

D.while

83____A.give up

B.give in

C.give out

D.give away

84____A.However

B.Therefore

C.Hence

D.Perhaps

85____A.make

B.show

C.do

D.work

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更多“Long-distance runners may at t…”相关的问题

第1题

Why don't birds get lost on their long flights from one place to another？ Scientists have

puzzled over this question for many years. Now they're beginning to fill in the blanks.

Not long ago, experiments showed that birds rely on the sun to guide them during daylight hours. But what about birds that fly by night？ Tests with artificial stars have proved that certain night-flying birds are able to follow the stars in their long-distance flights.

A dove had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The bird's cage was placed under an artificial star-filled sky. The bird tried to fly in the same direction as that taken by his outdoor cousins. Any change in the position of the artificial stars caused a change in the direction of his flight.

But the stars are apparently their principal means of navigation. When the stars are hidden by clouds, they apparently find their way by such landmarks as mountain ranges, coast lines, and river courses. But when it's too dark to see these, the doves circle helplessly, unable to find their way.

The reason why birds don't get lost on long flights ______.

A．have been known to scientists for years

B．have only recently been discovered

C．are known by everyone

D．will probably remain a mystery

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第2题

The Olympic Games originated in 776 B.C. in Olympia, a small town in Greece. Participants in the first Olympiad are said to have run a 200-yard race, but as the Games were held every four years, they expanded in scope. Only Greek amateurs were allowed to participate in this festival in honor of the god Zeus. The event became a religious, patriotic, and athletic occasion where winners were honored with wreaths and special privileges. They were banned in 394 A.D. by Emperor Theodosius, after they became professional circuses and carnivals.

The modern Olympic Games began in Athens in 1896 as a result of the initiative of Baron Pierre de Coubertin, a French educator whose desire was to promote international understanding through athletics. Nine nations participated in the first Games; over 100 nations currently compete.

The taint of politics and racial controversy, however, has impinged upon the Olympic Games in our epoch. In 1936 Hitler, whose country hosted the Games, affronted Jesse Owens, a black American runner, by refusing to congratulate Owens for the feat of having won four gold medals. In the 1972 Munich Games, the world was appalled by the deplorable murder of eleven Israeli athletes by Arab terrorists, The next Olympic Games in Montreal were boycotted by African nations; in addition, Taiwan Province withdrew. In 1980, following the former Soviet invasion of Afghanistan, sixty-two nations caused great dismay to their athletes by refusing to participate in the Games. The consensus among those nations was that their refusal would admonish the Soviets.

According to the passage, the first Olympic games were held （）.

A.as a religious festival

B.for political reasons

C.as an international competition

D.as a professional athletes' competition

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