“Even exercise professionals concede half a point here” (Line 3, Par

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• 1Some people dislike exercise because ________.

  A.they think it is physically exhausting

  B.they find it hard to exercise while on a diet

  C.they don’t think it possible to walk 3 miles every day

  D.they find consulting caloric-expenditure charts troublesome

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• 2What is said about the average American in the passage、

  A.They tend to exaggerate the healthful effect of “light” beer.

  B.They usually ignore the effect of exercise on losing weight.

  C.They prefer “light” beer and low-calorie bread to other drinks and foo

  D.D.They know the factors that play a positive role in keeping down body weight.

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• 3It can be inferred from the last paragraph that scientists ________.

  A.are puzzled by the mystery of forest pollution

  B.feel relieved by the use of unleaded gasoline

  C.still consider lead pollution a problem

  D.lack sufficient means to combat lead pollution

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• 4The authors of the Ambio study have found that ________.

  A.forests get rid of lead pollution faster than expected

  B.lead accumulations in forests are more difficult to deal with

  C.lead deposits are widely distributed in the forests of the US

  D.the upper layers of soil in forests are easily polluted by lead emissions

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• 5How did scientists discover the source of lead pollution in Greenland、

  A.By analyzing the data published in journals like Nature and Ambio.

  B.By observing the lead accumulations in different parts of the arctic area.

  C.By studying the chemical elements of soil and snow in Northeastern America.

  D.By comparing the chemical compositions of leaded gasoline used in various countries.

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• 6What was confirmed by the Boston University Medical Center’s study、

  A.Controlling one’s calorie intake is more important than doing exercise.

  B.Even occasional exercise can help reduce weight.

  C.Weight reduction is impossible without exercise.

  D.One could lose ten pounds in a year’s time if there’s no increase in food intak

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• 7What is the author’s purpose in writing this article、

  A.To justify the study of the Boston University Medical Center.

  B.To stress the importance of maintaining proper weight.

  C.To support the statement made by York Onnen.

  D.To show the most effective way to lose weight.

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• 8The machine looked like a large, ________, old-fashioned typewriter.

  A.forceful

  B.clumsy

  C.intense

  D.tricky

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• 9Though she began her ________ by singing in a local pop group, she is now a famous Hollywood movie star.

  A.employment

  B.career

  C.occupation

  D.profession

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• 10Within two weeks of arrival, all foreigners had to ________ with the local police.

  A.inquire

  B.consult

  C.register

  D.resolve

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