任务型阅读

    When you meet someone, you don't know if that person is going to become your good friend. (1) So you have to be a little more careful at first. Do you know what to do?

★Hang out with people you would like to have as friends and join in their plans unless you really disagree.

★If you don' t agree with their plans say so in a positive way, "I like this but maybe we could…”

★Accept（接受）people as they are. You can like other people although you don't agree with everything they say or do.

★You don't have to know about or have an opinion on everything—in fact it is often better if you don't.

★(2) Being a good listener so that others can tell that you ___________________(对……感兴趣) what they are saying.

读图，完成后面小题：

（ $\frac{a}{a+1}$ ﹣ $\frac{a}{a^2-1}$ ）÷ $\frac{a}{a+1}$ ﹣ $\frac{a+1}{a-1}$ ，其中a= $\sqrt{3}$ +1．

假如一个人站在南极点，他的四周全是（     ）