Los Angeles is known for its car culture. There are so many cars on the roads that the 31 can be heavy all day. But now,a group of cyclists (骑自行车的人) are trying to change the city's car culture 32 getting people out of their cars.

    Devon Fitzgerald is one of them. He said, " A lot oi people are in a rush,so I have to be very 33 when Fm riding my bike on the roads of Los Angeles. " 34 riding a bike to work can be dangerous,Devon prefers it. He continued, " First,it's good for 35 health. Second,1 don't have to 36 parking."

    To make cycling safer,some cyclists who live and work near each other are riding to work 37 People call the group L. A. Bike Trains. As the saying goes, " There's safety in numbers. " The government has also done 38 to support these cyclists. For example,Los Angeles has built more bike lanes (车道) to 39 more people to ride bikes to work.

    Do you want to become a member of L. A. Bike Trains? First of all,you need to have a 40

31. A. noise   B. traffic   C. rain   D. work

32. A. on   B. for   C. by   D. with

33. A. fast   B. happy   C. relaxed   D. careful

34. A. Because   B. Though   C. Since   D. When

35. A. my   B. his   C. her   D. their

36. A. ask for   B. write down   C. look up   D. worry about

37. A. alone   B. together   C. happily   D. suddenly

38. A. anything   B. something   C. nothing   D. everything

39. A. avoid   B. promise   C. teach   D. encourage

40. A. car   B. bus   C. bike   D. train


    Researchers at Northwestern University in Illinois find that music training can help students become smarter. They also find that one year of music training doesn’t make a difference. Two years does.

     They did a two-year study by providing free music lessons for some students from poor families at a high school. Let's take a look at the result. Overall (总的说来) ,more than 50% of the students did not graduate in the school. However,about 90% of the 44 students who took the free music lessons graduated and went to university.

   Adelina Flores’ daughter is one of those 44 students. She said she wasn’t surprised by the result. Her daughter had already tofd her she was getting better at maths after receiving the music training and that her reading skills had improved a lot. Adelina Flores added, ” She's grown to be more confident. "

   It's amazing,isn’t it? However,there is one problem. Children have to actually play an instrument to get smarter. They can't just listen to music. One of the researchers compared it to building up one's body through exercise. She said, " YouVe not going to become healthier just by watching sports. "

71. How did the researchers do the two-year study?

They did the study by for some

students from poor families at a high school.

72. How many students who took the music training didn't

graduate? 

About students didn't graduate,

73. How did Adelina Flores 9 daughter change after receiving the music training?

Her maths and reading skills improved a lot and

74. If children want to be smarter through music training,what do they have to do?

They have to to get smarter.

75. Whafs the main idea of this passage?

The main idea is.

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