In China,there are many different kinds of food. Some of them are very popular. The traditional Chinese food is dumplings. Everyone in China likes dumplings very much,and there are many different kind 题目和参考答案――青夏教育精英家教网――

    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.