红胜广场要建一个面积为1000平方米的花园，现有两种方案，一种是建正方形花园，一种是建圆形花园。
（1）如果你是设计者，你能计算出两种花园的围墙有多长吗？(误差小于1米)
（2）如果你是投资者，你会选择哪种方案？请说明理由。
解：方案一：建正方形：围墙长=4×
= 40
≈126
方案二：建圆形： 围墙长=20
≈199
（2）∵40
＜ 20
∴建正方形
| 任务型阅读。 | ||||||||||
| It is important to know how and what to pack for your trip. Why would you take sweaters and coats when you are going on a trip to the beach? Take as little as possible but be sure you have all the things you need for your trip. When you begin to pack, ask yourself the following questions: ▲ Where are you going? Many things you need to pack depend on the place you are going to visit. Think about this. ▲ How is the weather? Take proper clothes for the weather. Don't forget to take an umbrella if it often rains there. ▲ How long will you stay? If you are going to stay for a long time, you may need more clothes, and some other important things. ▲ Who will you go with? If you travel by yourself, you may need a book or some music for your trip. If you are going wit your friends, take something you can do together
| ||||||||||