五、阅读短文,按要求回答问题
What comes to mind when we talk about Christmas parties? The colour red and green? The Christmas trees and presents? For people in the US, putting up a Christmas tree is a treasured tradition. However, should we use the real Christmas trees on Christmas? Here are some of their opinions on this debate(辩论).

Group 1: Real trees are a terrible waste.
First, growing a real Christmas tree takes about 12 years and needs a lot of land and water. Then, most of the trees in the US have to be shipped around the country on trucks(卡车). This will use fuel(汽油) and pollutes the air. After the holiday, most people will throw them away and some will burn their trees. Both of them are bad for our earth. However, artificial(人造的) trees can be reused for five to ten years, so people won't buy them every year.
Group 2: Artificial trees are worse.
Artificial trees don't look, smell, or feel like real ones. So what's the point? They are not good for the earth because they are made of plastic. And it won't break down easily when they are thrown away. What's more, real trees help the environment when they are planted. They can provide a place for wildlife to live and produce oxygen(氧气).
1. What's the treasured tradition on Christmas Day?

2. How many reasons does Group 1 mention(提到)?

3. Why don't the artificial trees break down easily?

4. What's the main idea of the passage?

5. Which group do you agree with? Why?

1. Putting up a Christmas tree.
2. Three./3.
3. Because they are made of plastic.
4. Different opinions about using real Christmas trees or artificial trees on Christmas./A debate about whether we should use real Christmas trees or artificial trees on Christmas.
5. 示例答案：I agree with Group 2. Because real Christmas trees can bring a more authentic festive feeling, and when they are properly planted, they can offer living places for wildlife and produce oxygen to benefit the environment. We can also recycle the used real trees instead of throwing or burning them to reduce pollution.