Câu 1 : Tìm x,biết a, 2x-3<x+7 b, (x ²+1)(x-3) ≥ 0 c, 4x-6 ≥ $\frac{1}{2}$ x +1

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Many children have music classes when they are at school. And it is thought that music can help them learn other subjects better. Research has shown that it can improve children's study in certain subjects. Some studies have shown that music training can help you understand your own language better. It could also help you with learning a second one. Moreover, young people who have studied music also seem to get higher scores in other subjects like maths. So it could be that these school subjects are connected in some way. Music also helps you think of new ideas, and believe more in yourself. If you are learning the guitar, for example, it can be really exciting when you are able to start composing your own pieces of music. One of the biggest benefits, of course, is that listening to music can reduce your stress. And composing music can make you feel the same way. Maybe your musical knowledge will even open up a great career path for you in the future! (Adapted from Preliminary for Schools Trainer) Question 36: What is the main idea of the passage? A. Benefits of learning music B. New ideas in music C. Ways to teach music D. Ways to write a piece of music Question 37: The word it in paragraph 1 refers to . A. research B. school C. music D. child Question 38: According to paragraph 2, students who learn music seem to . A. dislike learning other subjects B. get higher marks in maths C. know only one language D. dislike leaming a second language . Question 39: According to the passage, which of the following is NOT mentioned as a benefit of music? A. It helps you believe more in yourself. B. It helps you think of new ideas C. It helps you reduce stress. D. It helps you make more friends. Question 40: The word “benefits” in paragraph 3 is closest in meaning to . A. drawbacks B. feelings C. problems D. advantages