Some people dislike exercise because ________.

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• 1What 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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• 2It 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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• 3The 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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• 4How 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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• 5Lead accumulation worldwide decreased significantly after the use of unleaded gas in the US ________.

  A.was discouraged

  B.was enforced by law

  C.was prohibited by law

  D.was introduced

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

  A.2) means “They ________”.A.agree that the calories in a small piece of pastry can be difficult to work off by exercise

  B.partially believe diet plays a supporting role in weight reduction

  C.are not fully convinced that dieting can help maintain one’s new weight

  D.are not sufficiently informed of the positive role of exercise in losing weight

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• 7What 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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• 8What 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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• 9The machine looked like a large, ________, old-fashioned typewriter.

  A.forceful

  B.clumsy

  C.intense

  D.tricky

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• 10Though 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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