题目内容

An alcohol breath test (ABT) is often used by the police to find out whether a person is drunk while driving. In the United States, the legal blood alcohol limit is 0.08% for people aged 21 years or older, while people under 21 are not allowed to drive a car with any level of alcohol in their body. A “positive” test result, a result over the legal limit, allows the police to arrest the driver. However, many people who tested positive on the test have claimed that they only drank a “non-alcoholic” energy drink. Can one of these energy drinks really cause someone to test positive on an ABT? Researchers in Missouri set up an experiment to find out.
First, the amount of alcohol in 27 different popular energy drinks was measured. All but one had an alcohol level greater than 0.005%. In nine of the 27 drinks, the alcohol level was at least 0.096%.The scientists then investigated the possibility that these small levels of alcohol could be discovered by an ABT. They asked test subjects to drink a full can or bottle of an energy drink and then gave each subject an ABT one minute and 15 minutes after the drink was finished.
For 11 of the 27energy drinks, the ABT did find the presence of alcohol if the test was given within one minute after the drink was taken. However, alcohol could not be discovered for any of the drinks if the test was given 15 minutes after the drink was consumed. This shows that when the test is taken plays an important role in the test result. The sooner the test is conducted after the consumption of these drinks, the more likely a positive alcohol reading will be obtained

1.
What is the legal alcohol level for a 20-year-old driver in the US?
1. A.
  0.000%
2. B.
  0.005%
3. C.
  0.080%
4. D.
  0.096%
2.
What is the purpose of the Missouri experiment?
1. A.
  To warn people of the dangers of drinking energy drinks
2. B.
  To introduce a new method of calculating blood alcohol levels
3. C.
  To discover the relation between energy drinks and ABT test results
4. D.
  To change the current legal alcohol limit for drivers in the United States
3.
The underlined word “subjects” in Paragraph 2 refers to_____
1. A.
  the things that are being discussed
2. B.
  areas of knowledge studied in school
3. C.
  the person in an experiment
4. D.
  the people who belong to a country
4.
Which of the following affects the ABT test result most for energy drink consumers?
1. A.
  The age of the person who takes the test
2. B.
  The place where the test is given
3. C.
  The equipment that the test uses
4. D.
  The time when the test is taken

ACCD
试题分析：文章报道了能量飲料被檢測為酒駕，密西西比的研究人员在发现能量饮料和酒精检测的关系。结果表明能源饮料的酒精检测的结果是受时间的影响。
1.细节题：从第一段的句子：In the United States, the legal blood alcohol limit is 0.08% for people aged 21 years or older, while people under 21 are not allowed to drive a car with any level of alcohol in their body.可知20岁的司机是不能喝酒的，也就是合法的酒精标准是 0.000%，选A
2.细节题：从第一段的句子：Can one of these energy drinks really cause someone to test positive on an ABT? Researchers in Missouri set up an experiment to find out.可知密西西比的研究人员在发现能量饮料和酒精检测的关系。选C
3.猜词题：句意：他们给每个受测试的人一罐饮料然后在15分钟后，给他们一分钟的酒精检测。选C
4.细节题：从最后一段的句子：This shows that when the test is taken plays an important role in the test result. 可知能源饮料的酒精检测的结果是受时间的影响，选D
考点：考查新闻报道类短文

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　　“There is a senseless idea that children, grow up and leave home when they are 18, and the troth is far from that,” says sociologist Lary Bumpass of the University of Wisconsin．Today, unexpected numbers of young adults are living with their parents．“There is a major shift in the middle class,” declares sociologist Allasan Schnailberg of Northwestern University, whose son, 19, moved back in after an absence of eight months．

　　Analysts cite a variety of reasons for this remm to the nest．The marriage age is rising, a condition that makes home and its pleasantness particularly attractive to young people．A high divorce rate and a declining remarriage rate are sending economically pressed and emotionally hurt survivors back to parental shelters．For some, the expense of an away-from-home college education has become so excessively great that many students now attend local schools．Even after graduation, young people find their wings cut by skyrocketing housing costs．

　　Living at home, says Knighton, a school teacher, continues to give her security and moral support．Her mother agreed, “It’s ridiculous for the kids to pay all that money for rent．It makes sense for kids to stay at home．” But sharing the family home requires adjustments for all．There are the hassles over bathrooms, telephones and privacy．Some families, however, manage the delicate(微妙的)balancing act．But for others, it proves too difficult．Michelle Del Turco, 24, has been home three times and left three times．“What I considered a social drink, my dad considered an alcohol problem,” she explains．“He never liked anyone I dated, so I either had to hide away or meet them at friends’ houses．”

　　Just how long should adult children live with their parents before moving on?Most psychologists feel lengthy homecomings are a mistake．Children, struggling to establish separate identities, can end up with “a sense of inadequacy, defeat and failure．” And again parents, who should be enjoying some financial and personal freedom, find themselves stuck with responsibilities．Many agree that brief visits, however, can work beneficially．

(1)

What apparent trend appears in the U．S．?
[　　]
A．	Young adults leave their parents and live independently．
B．	Middle class young adults stay with their parents．
C．	Married young adults move back home after a lengthy absence．
D．	Young adults get jobs nearby in order to live with their parents．

(2)

The word “hassles” in the passage probably means ________．
[　　]
A．	agreements
B．	worries
C．	disadvantages
D．	quarrels

(3)

According to the passage what is the best for both parents and children?
[　　]
A．	They should adjust themselves to shanng the family expenses．
B．	Children should leave their parents when they are grown-up．
C．	Adult children should visit their parents from time to time．
D．	Parents should support their adults children when they are in trouble．

Scientists show a number of reasons for this return to the nest．The marriage age is rising, a condition that makes home and its pleasantness particularly attractive to young people．A high divorce （离婚） rate and a low remarriage rate make some differences．For some, the expense of an away - from - home college education has become so great that many students now attend local schools．Even after graduation, young people find their wings tied by terrible housing costs．

Living at home, says Knighton, a school teacher, continues to give security （安全保卫） and moral（道义的） support．Her mother agreed．“Its strange for the kids to pay all that money for rent．It makes sense for kids to stay at home．” But sharing the family home requires changes for all．There are the hassles over bathrooms, telephones and privacy．Some families, however, manage the careful balancing act．But for others, it proves too difficult．Michelle Del Turco, 24, has been home three times and left three times．“What I considered a social drink, my dad considered an alcohol （酒精） problem,” she explains．“He never liked anyone I dated, so I either had to hide away or meet them at friends' houses．”

Just how long should adult children live with their parents before moving on? Most scientists feel lengthy homecomings are a mistake．Children, can end up with a sense of defeat and failure．And aging parents, who should be enjoying some freedom, find themselves stuck with too many things．Many agree that brief visits, however, can work well．

According to the author, there was once a trend in the U．S．________．

A．for young adults to leave their parents and live separately

B．for middle class young adults to stay with their parents

C．for married young adults to move back home after a lengthy absence

D．for young adults to get jobs nearby in order to live with their parents

Which of the following does not lead to young adults returning to the nest?

A．Young adults find housing costs too high．

B．Young adults are not old enough．

C．Young adults look for parental comfort and support．

D．Quite a number of young adults attend local schools．

The underlined word “hassles” in the passage probably means _________．

A．agreements B．worries

C．disadvantages D．quarrels

According to the passage what is the best for both parents and children?

A．They should share the family expenses．

B．Children should leave their parents when they are grown up．

C．Adult children should live away from their parents and visit their parents from time to time．

D．Parents should support their adult children when they are in trouble．

．One of the disadvantages of young adults returning to slay with their parents is that ______．

A．there will certainly be inconveniences in even-day life

B．most parents find it difficult to keep a bigger family going

C．the young adults try to be overprotected by their parents

D．public opinion is against young adults staying with their parents

“There is an out – of – date idea that children grow up and leave home when they’re 18,and the truth is far from that,” says Mr．Larry Bumpass of the University of Wisconsin．Today unexpected numbers of young adults are living with their parents．“There is a great change in the middle class,” declares Allan Schnaiberg of Northwestern University, whose son, 19, moved back in after an absence of eight months．
Scientists show a number of reasons for this return to the nest．The marriage age is rising, a condition that makes home and its pleasantness particularly attractive to young people．A high divorce （离婚） rate and a low remarriage rate make some differences．For some, the expense of an away - from - home college education has become so great that many students now attend local schools．Even after graduation, young people find their wings tied by terrible housing costs．
Living at home, says Knighton, a school teacher, continues to give security （安全保卫） and moral（道义的） support．Her mother agreed．“Its strange for the kids to pay all that money for rent．It makes sense for kids to stay at home．” But sharing the family home requires changes for all．There are the hassles over bathrooms, telephones and privacy．Some families, however, manage the careful balancing act．But for others, it proves too difficult．Michelle Del Turco, 24, has been home three times and left three times．“What I considered a social drink, my dad considered an alcohol （酒精） problem,” she explains．“He never liked anyone I dated, so I either had to hide away or meet them at friends' houses．”
Just how long should adult children live with their parents before moving on? Most scientists feel lengthy homecomings are a mistake．Children, can end up with a sense of defeat and failure．And aging parents, who should be enjoying some freedom, find themselves stuck with too many things．Many agree that brief visits, however, can work well．
【小题1】According to the author, there was once a trend in the U．S．________．