燃烧是人类最早利用的化学反应之一．

（1）可燃物燃烧除需氧气外，还需满足什么条件？

（2）可燃物燃烧的剧烈程度与氧气浓度或接触面积等因素有关，任举一例加以说明．

增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1每处错误及其修改均仅限一词；

2只允许修改10处，多者（从第11处起）不计分。

   My dream school starts at 8:30 a.m. and ends at 3:30 p.m. They are three lessons in the morning and two in the afternoon. We didn't need to do so many homework. Therefore, we have more time with after-school activities. For example, we can do reading for one and a half hour and play sports for one hour every day.

   My dream school look like a big garden. There are all kinds of the flowers and trees around the classroom buildings. We can lie on the grass for a rest, or sat by the lake listening music. The teachers here are kind and helpfully. They are not only our teachers but also our friends.

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读我国部分地区示意图，回答下列问题。