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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
答案
更多“The study published in the journal Nature indicates that ______.A．the Clean Air Act has no”相关的问题
第1题
What did the study published in the journal Science reveal？
A．Testing is a passive studying method.
B．Test is the best way to assess people's learning.
C．Taking a test helps people learn better.
D．More tests aren't necessarily better for students.
第2题
What did the Swedish study published last year reveal？
A．People who were unfit were more likely to live a miserable life.
B．Boys who served in the army would have better job prospects.
C．Soldiers' IQ scores were strongly influenced by strength training.
D．The fitter the young adults were, the higher IQs they would have.
第3题
第4题
Passage Three Questions 21 to 25 are based on the following passage.
Lead deposits, which accumulated in soil and snow during the 1960's and 70's, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation world-wide has decreased significantly.
A study published recently in the journal Nature shows that air-borne leaded gas emissions
from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic(北极的 ) snow were declining.
In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (分区) the lead sources. The dominant lead
ratio found in Greenland snow matched that found in gasoline from the United States.
In a study published in the journal Ambio, scientists found that lead levels in soil in the North-eastern United States had decreased markedly since the introduction of unleaded gasoline.Many scientists had believed that the lead would stay in soil and snow for a longer period.
The authors of the Ambio study examined samples of the upper layers of soil taken from thesame sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990.
The forest environment processed and redistributed the lead faster than the scientists had expected.
Scientists say both studies demonstrate that certain parts of the ecosystem (生态系统 ) re-spond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.
21. 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
第5题
A．that brain training helps to decrease the severity of schizophrenia.
B．that patients with schizophrenia are capable of playing computer games.
C．whether the patients can keep pace with the level of difficulty steadily.
D．that auditory training is helpful to all the symptoms of schizophrenia.
第6题
根据下面材料，回答题。
Lead Pollution (铅污染)
Lead deposits, which accumulated in soil and snow during the 1960&39;s and 70&39;s, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.
A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的) snow were declining.
In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (区分) the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.
In a study published in the journal/Imbio (人类环境杂志), scientists found that lead levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline.
Many scientists had believed that the lead would stay in soil and snow for a longer period. The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990. The forest environment processed and redistributed the lead faster than the scientists had expected.
Scientists say both studies demonstrate that certain parts of the ecosystem (生态系统).respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.
The study published in the journal Nature indicates that__________. 查看材料
A.the US is the major source of lead pollution in arctic snow
B.the Clean Air Act has not produced the desired results
C.lead will stay in soil and snow longer than expected
D.lead deposits in arctic snow are on the increase
第7题
A．The more people watch TV, the healthier they will become.
B．The amount of exercises people get should be taken seriously.
C．The harm done by sedentary activities seems impossible to repair.
D．Exercise can make up for damage caused by high amount of sitting time.
第8题
A study published recently in the journal Nature shows that air- borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic snow were declining.
In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasoline and thus enabled scientists to differentiate the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.
In a study published in the. journal Ambio, scientists found that lead levels in soil in the North-eastern United States had decreased markedly since the introduction of unleaded gasoline.
Many scientists had believed that the lead would stay in soil and snow for a longer period.
The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990.
The forest environment processed and redistributed the lead faster than the scientists had expected.
Scientists say both studies demonstrate that certain parts of the ecosystem respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.
1. Lead 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
2. It 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
第9题
听力原文： A study published in September suggests there is a surprising way to get people to avoid unhealthy foods: change their memories. Scientist Elizabeth Loftus of the University of California at Irvine asked volunteers to answer some questions on their personalities and food experiences. "One week later," Loftus says, "we told those people we'd fed their answers into our smart computer and it came up with an account of their early childhood experiences." Some accounts included one key additional detail. "You got sick after eating strawberry ice-cream." The researchers then changed this detail into a manufactured memory through leading questions—Who were you with？ How did you feel？ By the end of the study, up to 41% of those given a false memory believed strawberry ice-cream once made them sick, and many said they'd avoid eating it.
When Loftus published her findings, she started getting calls from people begging her to make them remember hating chocolate or French fries. Unfortunately, it's not that easy. False memories appear to work only for foods you don't cat on a regular basis. But most important, it is likely that false memories can be implanted only in people who are unaware of the mental control. And lying to a patient is immoral, even if a doctor believes it's for the patient's benefit.
Loftus says there's nothing to stop parents from trying it with their overweight children. "I say, wake up—parents have been lying about Father Christmas for years, and nobody seems to mind. If they can prevent diseases caused by fatness and all the other problems that come with that, you might think that's a more moral lie. Decide that for yourself."
(33)
A．To improve her computer program.
B．To find out their attitudes towards food.
C．To find out details she can make use of.
D．To predict what food they'll like in the future.
第10题
听力原文： An almost 100-year-old English textbook might be the earliest such book published in China, its owner, Mr. Wang, told reporters last week in Beijing.
The 440-page textbook, entitled "English with Chinese Phonetics", was possibly published in 1904 or before, predating another early textbook, "English Words at Entrance Level", which was thought to be the earliest English textbook in China.
Though almost a century old, with pages yellow with age, the various letter types listed in the book are still clearly recognizable, displaying the high standard of print quality at that time. As the title of the book suggests, the textbook uses Chinese characters to provide phonetic equivalent for English words, thus constituting a major drawback of this early school tutorial work, since there was no such a thing as standardized Mandarin at that time, the phonetics were arranged in line with the so-called "orthodox" Cantonese, resulting in misleading and what today seems a quite funny effect. Nevertheless, the book has been hailed as a "revolutionary guidebook inventing creative study methods for those ambitious people doing foreign businesses".
The book was acquired by its present owner, Mr. Wang, quite by chance. In 1992, when he was living in Papua New Guinea, an old local Chinese, originally from Guangdong Province presented him the book as a gift.
(33)
A．In 1904.
B．In 1905.
C．In 1914.
D．In 1915.
