通读下面的短文，掌握其大意，然后从各题所给的A、B、C三个选项中选出一个最佳答案。

    There is a zoo in my town. I often go there with my parents by 1 on the weekend. It usually takes my father about  2 minutes to drive there. We often leave home at about eight and  3 there at about twenty past eight.

    I like many kinds of animals, but I like4 best. First, they are verycute. Second, they are friendly, and they are one of China's    5. but now pandas are in great danger, so we must 6 them.

    Now, I'm watching the two pandas in the zoo. I  7  want to go near and play with them. 8  I also want to give them some food. But  9 the rules in the zoo:

          1. Don't go near tothe animals.

          2. Don't give10 to the animals.

    To make animals live a happy life, everyone needs to follow the rules.

内容包括：

1）环境污染越来越严重，比如水污染和空气污染，我们能看到森林被砍伐，垃圾随地乱扔等。

2）你是怎样从身边小事做起，做到"低碳生活"的？

如：每天步行上学、离开教室及时关灯和电扇、充分利用纸张、节约用水等。

3）号召更多的人加入到"低碳生活"中来。

My Low--carbon Life

计算﹣2²﹣（﹣2）³×（﹣1）²﹣（﹣1）³的结果为（　　）

在设计“探究光对蟑螂生活的影响”实验时，除了（  ）条件外，其他条件的选择都应相同．