题目内容
— do you have your hair cut?
— Once a month.
A. How many B. How often
C. How long D. How much
B
【解析】
试题分析：句意：你多久理一次发？一个月一次，A. How many多少，提问可数名词B. How often多久一次，提问频率C. How long多久，提问一段时间D. How much提问不可数名词，根据句意，故选B。
考点：考查特殊疑问词词组的用法。
survey, on, compare, both, find, opposite, to, low, necessary, whether, increase, high |
At present, quite a few teens spend much time with their iPods listening to music, but a new study suggests that teens who spend too much time listening to music may be at1. risk of depression (抑郁症).
The study, led by Brian, an assistant professor at the University of Pittsburgh School of Medicine,
2. that teens who listened to music more often had 80% higher risk of depression, 3. with teens who listened to music less often.
According to the study, teens who most often listened to music could listen for at least four 4. five hours a day.
“At this point, it’s not clear 5. depressed people begin to listen to more music to escape, or whether listening to large amounts of music can lead to depression, or 6. ,” said Brian in a statement. However, researchers found that reading books had the 7. result: with increase in time spent reading, teens’ risk of depression dropped 50%.
For the study, the researchers 8. 106 teens of 7 to 17 for two months. According to the survey, music showed strong associations (联系) with 9. depression risk. But that doesn’t 10. mean that music causes depression — for some depressed teens, music may even help.