英语阅读理解IF you do not want people to know how much you drink,b
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英语阅读理解
IF you do not want people to know how much you drink,beware.A surge of new tests on blood,urine and hair can reveal how much someone has drunk not only in the past days,but in the past weeks and months.Airlines could use a hair test to instill safety by identifying pilots who are heavy drinkers.A urine test might allow police to prove that someone had been drinking well after an accident has happened.Used together,the set of tests could provide a comprehensive picture of someone's drinking habits,says Friedrich Wurst of the University of Basel in Switzerland.Wurst is head of a multinational team developing the tests.Alcohol itself vanishes from the body within hours.After this point,there are a number of existing methods of telling whether someone has been drinking,but almost all of them rely on indirect evidence,such as levels of liver enzymes (酶) in the blood.And none of these tests is fully reliable.In the past decade,however,various groups worldwide have been studying products unique to alcohol.One of these indicators,ethyl glucuronide(EtG),starts accumulating in blood as alcohol levels decline.It lasts for up to five days in urine,and confirms that someone has had a drink in that time.Another test looks for phosphatidyl ethanol (PEth).PEth lasts for up to three weeks in the blood of people who consume more than the equivalent to three beers a day.Wurst's team has shown it is a far more reliable indicator than liver
enzymes."We found no false negatives," he says.Looking at the combined levels of four fatty acid ethyl esters (FAEEs) in hair provides an even longer measurement of alcohol consumption.FAEEs appear in blood within 12 to 18 hours of alcohol being consumed,and end up being stored in hair.In the latest study,Wurst's team monitored around 40 drinkers,and showed that FAEE levels in hair can distinguish between light and heavy drinkers."The only way to remove the evidence is to shave off all body hair," says Wurst.
6.What is the passage mainly about?
A) How to drink without letting people find out.
B) The importance of safe drinking.
C) How to form good drinking habits.
D) Different ways to test alcohol in people after drinking.
7.EtG can last for up to five days in __________.
A) hair
B) blood
C) urine
D) liver
8.How long can PEth last in the blood of people who drink more than three beers a day?
A) Two months.
B) 12 to 18 hours.
C) Three weeks.
D) Five days.
9.How many kinds of tests have been mentioned here?
A) Three.
B) Four.
C) Five.
D) Six.
10.Which test is the most reliable according to the passage?
A) EtG.
B) FAEEs.
C) PEth.
D) Liver enzyme test.
IF you do not want people to know how much you drink,beware.A surge of new tests on blood,urine and hair can reveal how much someone has drunk not only in the past days,but in the past weeks and months.Airlines could use a hair test to instill safety by identifying pilots who are heavy drinkers.A urine test might allow police to prove that someone had been drinking well after an accident has happened.Used together,the set of tests could provide a comprehensive picture of someone's drinking habits,says Friedrich Wurst of the University of Basel in Switzerland.Wurst is head of a multinational team developing the tests.Alcohol itself vanishes from the body within hours.After this point,there are a number of existing methods of telling whether someone has been drinking,but almost all of them rely on indirect evidence,such as levels of liver enzymes (酶) in the blood.And none of these tests is fully reliable.In the past decade,however,various groups worldwide have been studying products unique to alcohol.One of these indicators,ethyl glucuronide(EtG),starts accumulating in blood as alcohol levels decline.It lasts for up to five days in urine,and confirms that someone has had a drink in that time.Another test looks for phosphatidyl ethanol (PEth).PEth lasts for up to three weeks in the blood of people who consume more than the equivalent to three beers a day.Wurst's team has shown it is a far more reliable indicator than liver
enzymes."We found no false negatives," he says.Looking at the combined levels of four fatty acid ethyl esters (FAEEs) in hair provides an even longer measurement of alcohol consumption.FAEEs appear in blood within 12 to 18 hours of alcohol being consumed,and end up being stored in hair.In the latest study,Wurst's team monitored around 40 drinkers,and showed that FAEE levels in hair can distinguish between light and heavy drinkers."The only way to remove the evidence is to shave off all body hair," says Wurst.
6.What is the passage mainly about?
A) How to drink without letting people find out.
B) The importance of safe drinking.
C) How to form good drinking habits.
D) Different ways to test alcohol in people after drinking.
7.EtG can last for up to five days in __________.
A) hair
B) blood
C) urine
D) liver
8.How long can PEth last in the blood of people who drink more than three beers a day?
A) Two months.
B) 12 to 18 hours.
C) Three weeks.
D) Five days.
9.How many kinds of tests have been mentioned here?
A) Three.
B) Four.
C) Five.
D) Six.
10.Which test is the most reliable according to the passage?
A) EtG.
B) FAEEs.
C) PEth.
D) Liver enzyme test.
DCCAC
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