题目列表(包括答案和解析)
It's difficult to get the young to listen to anything you say these days.They have shut themselves off from the world with earplugs attached to their personal stereos such as MP3 players. And with more than three million iPods and MP3 players sold in Britain every year.it's not just the young who have been in the personal stereo habit.But at what risk is our hearing?
When MP3 players and iPods are turned to full volume,the sound can reach 104 dB (分贝),the maximum(最大值)allowed by EU safety standards but almost as loud as a pneumatic drill(气钻)(110dB)
The advice from scientists is to turn down the volume and limit use of such machines to an hour a day;the producers also recommend taking regular breaks to give the ears a rest.Yet research by the Royal National institute for the Deaf (RNID)showed that 39 percent of the young don't practice safe listening. The worry is that they could be creating problems later in life.
People with good hearing have tiny hair cells that line the inner ear and transmit(传递) signals to the brain,which it interprets as sound. When repeatedly exposed to uncomfortably loud noises(loud is defined as above 80 dB),including music through headphones and at concerts,those hair cells require a rush of blood or oxygen,otherwise“they effectively die”. Temporary(临时的)hearing loss or tinnitus(ringing in the ears) is a sign that hair cells are trying to recover,but over time recovery becomes impossible.
At UK cinemas,sound levels of 110dB have been recorded.Music played in nightclubs is so loud as to be comparable,in some cases,to standing two feet away from an aeroplane as it takes off(110dB).The level at which pain starts to happen for sound is 140dB.
1.When you use MP3 player,you should do the following except
A.turn it to the volume B.take regular breaks
C.use it less than an hour a day D.turn down the volume
2.Which of the following is NOT true?
A.Young people like their personal stereos such as MP3 players.
B.More than three million iPods and MP3 players are sold in Britain every year.
C.It is no doubt that sonic British young people’ s hearing is at risk.
D.More than 50 percent of the British young people don't practice safe listening.
3.The highest safe sound shouldn't be louder than
A.80db B.140db C.104db D.110db
4.What would be the best title for the passage?
A.A Warning That Fails on Deaf Ears B.MP3 Players——Hearing Killers
C.The Causes of Hearing Loss D.Hair Cells Suffering from Loud Noises
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完形填空
阅读下面短文,掌握其大意,然后从以下各题所给的四个选项(A,B,C和D)中,选出最佳选项。
The country's highest level university scholarships (奖学金) were handed out last week. The national scholarship is given to 45,000 students each year. The 1 10,000 will receive 6,000 yuan, the others, 4,000 yuan. 2 , students with a national scholarship are not required to pay tuition(学费).
The winners are students from poor families who have an 3 record in their studies. But, the University of Science and Technology of Beijing has gone 4 further with its requirements.
This year's winners 5 to be non-smokers, non-drinkers, and thrifty(节俭). Anyone who is 6 enough to use the scholarship money to 7 friends to meals could face the possibility of haveingit 8 . The assessment(评定) process was strict. The student who applied for the scholarship was supposed to do two things. One is to 9 a short speech about study, campus life, and family conditions; and 10 is to take part in a question and answer session with the evaluation committee.
The committee was clear in itsdec decision process 11 gave the scholarships to 147 students.
As for how the money should be spent, however, opinions 12 . Some students say that it's 13 , even traditional, for a winner to invite friends to a 14 , usually a meal.
The scholarship winners themselves 15 not seem to agree. “I object to spending the money on a banquet(宴会) for friends. 16 winners who ate from poor families should make good use of the money and not waste it,” said one of the 17 , who said she would use it for her further studies in future.
A bit more 18 view came from one of the clerks of the University's Students' Affairs Office, “How they spend the scholarship money is sort of a private matter and they're 19 to spend it in different ways. But they'd better use it 20 and in an economic way.”
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