Cloze Test Exercising to Music Pumps up Brain Power
If music makes you smarter, and exercise helps brain function, can exercising to music really boost brainpower? Some researchers said it can.
Volunteers who listened to Vivaldi's "Four Seasons" while working out on a treadmill did much better on a test of 1 ability than when they exercised without music, a team at Ohio State 2 found.
"Evidence suggests that exercise improves the 3 performance of people with coronary artery disease," said 4 Charles Emery, who led the study. "And listening to music is thought to 5 brainpower. We wanted to put the two results 6 ," Emery added in a statement.
Writing in the latest issue of the journal Heart & Lung, Emery and 7 said they studied 33 men and women taking 8 in a cardiac rehabilitation program after having 9 surgery, angioplasty or other procedures to treat clogged arteries. The 10 said they felt better emotionally and mentally after 11 with or without the music. But their improvement on the verbal 12 test doubled after listening to music on the treadmills. "Exercise seems to 13 positive changes in the nervous system, and these changes may have a direct 14 on cognitive ability," Emery said.
"Listening to music may influence cognitive 15 through different pathways in the brain. The combination of music and exercise may 16 and increase cognitive arousal while helping to 17 cognitive output." Emery said he now wanted to test people 18 music of their own choice. "We used the 'Four Seasons' because of its 19 tempo and positive effects on medical patients in previous 20 ," Emery said. "But given the range of music preferences among patients, it's especially important to evaluate the influence of other types of music on cognitive outcomes." World Water Shortage
A new study warns that about thirty percent of the world's people may not have enough water by the year 2025.
A private American organization called Population Action International did the new study. It says more than three-hundred-thirty-five-million people 21 enough water now. The people live in twenty-eight 22 . Most of the countries are in Africa or the Middle East.
P-A-I 23 Robert Engelman says by the year 2025, about three-thousand- million people 24 water. At least 18 more countries are expected to have 25 water problems. The demand for water 26 increasing. Yet the amount of water on Earth stays 27 .
Mr. Engelman says the population in countries that lack water 28 growing faster than in other parts of the world. He says 29 growth in these countries will continue to increase. The 30 says lack of water in the future may 31 several problems. It may increase 32 problems. Lack of water often means drinking water not 33 . Mr. Engelman says there are problems all over the world because of 34 , such as cholera, which are carried in water. Lack of water 35 result in more international conflict. Countries may have to 36 for water in the future.
Some countries now get sixty percent of their 37 water from other countries. This is 38 Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. 39 the report says lack of water would affect the ability of 40 to improve their economies. This is because new industries often need a large amount of water when they are beginning.
注：第4小题考察的是情态动词的准确应用，第8小题考察的则是be动词时态的应用。第18小题检测语境中词语搭配习惯表示法的正确使用。 
深色：已答题 浅色：未答题