In the past, going to a piano teacher was the most popular way to learn how to play the pi

In the past, going to a piano teacher was the most popular way to learn how to play the piano. You could get one-to-one teaching and have the opportunity to learn as much as the teacher knew. If you didn’t have private lessons, you could still learn the piano, but you would have to teach yourself. This was easy for some, but very difficult for most. However, with technology developing today, there is at last another way that you can take piano lessons. You can take an online course.
An online course is much cheaper than a private lesson. If a private lesson costs 30-40 dollars per week, just think about how quickly that adds up. You can take a whole online course in piano for just a fraction(小部分) of the money that you would spend on weeks of private lessons. Also, private lessons are usually only one hour per week. So you would have to wait for your next lesson to continue your learning. However, online piano courses are quite different.
With an online piano course, you can work at your own pace. You can also take as many lessons per week as you want, or go back and listen to your last lesson if you have forgotten anything. Most adults who want to learn how to play the piano enjoy being able to go back and listen to the lessons again.
Of course if you need someone to sit beside you and offer you immediate feedback(反馈) as you are playing, you might not get that from an online piano course. However, the lessons online can be viewed（观看） at any time, or as often as you’d like, which means that you can get your own type of feedback from an online piano course.
【小题1】This passage mainly tells us .A．the disadvantages of the traditional ways of learning to play the pianoB．the differences between traditional piano courses and online coursesC．why people prefer online piano courses to traditional piano coursesD．the advantages of learning to play the piano through an online course【小题2】What does the underlined sentence in Paragraph 2 want to tell us?A．That private piano lessons shouldn’t be that expensive.B．That taking private piano lessons really costs a lot.C．That not everyone can afford to take piano lessons.D．That the price for private piano lessons has increased greatly.【小题3】How did the writer make his points clear?A．By giving detailed data.B．By giving many examplesC．By writing about his own experiencesD．By comparing with the old ways.D

(答案→)D 解析：在过去，人们学钢琴都要找钢琴老师，还要四处奔波。现在，我们可以在网上学习钢琴了，更方便，更快捷，更人性化的符合你的需求。【小题1】主旨大意题。文章主要介绍了在网上学习钢琴的优势，因此这是在为在线学习钢琴做广告。故选D。【小题2】句意猜测题。本段讲了在线学钢琴一大优势就是便宜，因此是在说请私人钢琴教师花费是巨大的，而且还在不断涨价中。故选B。【小题3】主旨大意题。作者为了说明在线钢琴学习的优势，一直在与传统的方式，也就是请私人钢琴教师相比较。故选D。

我好好复习下