2b 部分答案
1. The common problem for Chinese and American families is that children have to take so many after-school classes.
2. Cathy Taylor,Linda Miller and Dr.Alice Green give their opinions.
（答案仅供参考）
2c 部分答案
1. continues 2. training 3. stress 4. typical
5. compete 6. development 7. comparing
2d 部分答案
1. Yes,she does.
2. No,she doesn't. Her opinion is that people shouldn't push their kids so hard,and they should let their kids be kids.
3. She agrees with Linda. She says that after-school activities can cause a lot of stress for children. She also says that kids should have time to relax and think for themselves,and that it's more important to have happy children than successful children.
（答案仅供参考）
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