The study published in the journal Nature indicates that ________.
A.the Clean Air Act has not produced the desired results
B.lead deposits in arctic snow are on the increase
C.lead will stay in soil and snow longer than expected
D.the US is the major source of lead pollution in arctic snow
试卷相关题目
- 1Why do some Japanese parents send their children to university-based kindergartens、
A.They can do better in their future studies.
B.They can accumulate more group experience there.
C.They can be individually oriented when they grow up.
D.They can have better chances of getting a first-rate education.
开始考试点击查看答案 - 2Free play has been introduced in some Japanese kindergartens in order to ________.
A.broaden children’s horizon
B.cultivate children’s creativity
C.lighten children’s study load
D.enrich children’s knowledge
开始考试点击查看答案 - 3In Japan’s preschool education, the focus is on ________.
A.preparing children academically
B.developing children’s artistic interests
C.tapping children’s potential
D.shaping children’s character
开始考试点击查看答案 - 4Most Americans surveyed believe that preschools should also attach importance to ________.
A.problem solving
B.group experience
C.parental guidance
D.individually-oriented development
开始考试点击查看答案 - 5We learn from the first paragraph that many Americans believe ________.
A.Japanese parents are more involved in preschool education than American parents
B.Japan’s economic success is a result of its scientific achievements
C.Japanese preschool education emphasizes academic instruction
D.Japan’s higher education is superior to theirs
开始考试点击查看答案 - 6Lead 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
开始考试点击查看答案 - 7How 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.
开始考试点击查看答案 - 8The 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
开始考试点击查看答案 - 9It 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
开始考试点击查看答案 - 10What 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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