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   [1] Nowadays，many parents send their children to various art classes. where the kids can learn how to paint, dance, sing or play musical instruments.
   [2] Some people firmly agree with these parents. [3] Since the competition among the kids for places in famous primary schools and middle schools is fierce, they see an artistic talent of the kids as an extra advantage in the competition. [4] Furthermore, they say, even if the kids do not do well in art, the art learning experience may prove useful for their future life.
   [5] However, others seriously doubt this. [6] They say that, for those kids who do well in art, art classes have taken up so much of their leisure time that many are Analysis leading a very unhappy childhood.[7] For those who have no interest in such classes. they are just a waste of time.
   [8] In my opinion，parents should encourage their kids to take art classes but at the same time take an open mind about this issue. [9] If the kid is keen on art, art classes are sure to be the first choice.[10] But if the kid hates it, he should not be forced to take them.

【答案解析】写作指南：
   这篇作文是典型的“现象一不同的观点一自己的看法”类作文。
   对于这类作文，一般有两种写作模式。一种是，把写作重点放在描述两种不同的观点上，然后简要说明“我认为”的部分。另一种则相反，简述存在两种不同的观点，然后选取其中一种观点予以支持，并详细论述。在动笔之前，得先考虑对“上艺术班热”的两种态度各有什么理由。如果自己只能论证支持的观点或反对的观点，那就站在相应的立场论述即可。如果自己两方面都列出了具有说服力的理由，那就应该得出“具体情况具体考虑”的结论来，不偏袒任何一方。
   [1] [2] 用where引导定语从句，指“在这些课堂上”。
   [2] [5]Some people和However，others两段分别论述两种不同的观点。
   [3] 以firmly修饰agree表示“坚决赞同……”，“激烈的竞争”形容词应该用fierce。extra advantage“额外优势”。
   [4] Furthermore进一步论证，使理由更充分。prove useful“被证明有用”，prove后面可以直接加形容词，表示被动含义。
   [6] have taken up so much of their leisure time“占用了很多业余时间”，take up time指“占用时间”。
   [7] For those who…“对于那些……的人”。
   [8] In my opinion，总结段陈述自己的观点——应该让孩子根据自己的兴趣决定取舍。take an open mind about“以开放的心态对待”。
   句型变换：
   …………………………………………[1]  
   1. Nowadays, many parents send their children to various art classes, where the kids can learn how to paint, dance, sing or play musical instruments.
   2. These days, a lot of parents send their children to different kinds of art classes, where painting, dancing, singing or skills of playing musical instruments are taught.
   3. Recently, there is a trend for parents to send their children to a variety of art classes such as painting classes, dancing classes, singing classes or musical instruments classes.
   4. These years, children are sent by their parents to all sorts of art classes to learn painting, dancing, singing or musical instruments.
   ……………………………………………[4]  
   1. Furthermore, they say, even if the kids do not do well in art, the art learning experience may prove useful for their future life.
   2. In addition, they hold, though the kids may not do well in art, the art learning experience may still be useful for their future life.
   3. What's more, they believe, it does not matter if the kids do not do well in art, since the learning experience has already added to their future competence.
   4. Additionally, they argue, even though the kids fail to do well in art, they still have acquired the learning experience which is good for their future lire.
   ………………………………………………[6]  
   1. They say that, for those kids who do well in  art,  art classes have taken up  so  much  of their  leisure  time that many are leading a very unhappy childhood.
   2. They consider that art classes have taken so much of their leisure time that  many  children  are  leading  a very unhappy childhood, even though they do well in art.
   3.  They  maintain  that,  though  some kids do well in art, the art classes which  have  taken up so much  of their leisure time have ruined their childhood.
   4. In their opinion, those kids who do well  in  art  haven't  ever  enjoyed their  childhood  because  the  art classes have occupied most of their free time.
   …………………………………………[7]
   1. For those who have no interest in such classes, they are just a waste of time.
   2. When children have no interest in such  classes,  they  become  nothing more than a waste of time.
   3. Art classes have wasted much time of those children who have no interest in them.
   4. It is a waste of time for those children to take art classes while they are not interested in them.
   …………………………………………[8]  
   1. In my opinion, parents should encourage their kids to take art classes but at the same time take an open mind about this issue.
   2.  As far as  I'm  concerned,  parents should  be  open-minded  when  encouraging their  children  to  go  to those art classes.
   3. To me, parents should think twice over  the  issue  of  sending  their children to art classes.
   4. In my view, whether to send children to  art  classes  requires  parents  to take an open mind.