Ⅳ. Read and choose. 读一读，补全对话。
Kim: Hi, Tom! What did you learn in the English class today?
Tom: We learned about Saihanba! Do you know where it is?
Kim: Yes! It’s in the north of Hebei Province. 1.
Tom: But 2.
Kim: That sounds bad. Who came to change it?
Tom: 3.
Kim: Was it easy to plant trees there at first?
Tom: 4.
Kim: What did the foresters do to solve the problem?
Tom: 5.
Kim: That’s really a “Green Miracle” !
A. No, it was very difficult because of the low temperature and strong wind.
B. 369 foresters from all over China came to Saihanba in 1962.
C. it was a wasteland in the 1950s.
D. It is the “Green Great Wall” .
E. They tried new ways and worked hard year after year.

1. D 2. C 3. B 4. A 5. E

我们可以根据对话上下文的逻辑匹配对应选项：
1. 第一空前一句介绍了塞罕坝的地理位置，接下来补充介绍塞罕坝的相关称号，符合D选项的语义。
2. 第二空前有转折词But，后一句Kim表示“那听起来很糟糕”，此处描述塞罕坝过去的恶劣状态，符合C选项的语义。
3. 第三空前Kim的问题是“谁来改变了这种状况”，此处回应对应的人物和相关事件，符合B选项的语义。
4. 第四空前是一般疑问句“一开始在那里种树容易吗”，此处作出否定回答并解释原因，符合A选项的语义。
5. 第五空前Kim的问题是“林业工作者做了什么来解决问题”，此处回答他们的具体行动，符合E选项的语义。

Ⅴ. Read and complete the tasks. 读一读，完成下列任务。
Saving our hometown wetland
There is a small wetland (湿地) near our hometown. It used to be a beautiful place — with clean water, green reeds (芦苇), and many small birds. Every spring, we could see ducks swimming and hear birds singing there.
But two years ago, some people threw rubbish into the wetland. The water got dirty, and the birds stopped coming. We felt sad and told our teacher about it. Then, our class joined a “Protect (保护) the Wetland” activity (活动). We picked up waste, planted young reeds, and put up signs that said “Don’t Pollute (污染) Our Wetland”.
Now, the wetland is beautiful again! The water is clean, and the birds have come back. Our teacher says wetlands are very important for nature — they keep water clean and give homes to birds. We are happy we helped save our hometown wetland.
1. 根据短文内容，判断正（T）误（F）。
() a. The wetland was beautiful with clean water and many birds two years ago.
() b. The students joined a “Protect the Wetland” activity after telling their teacher about the wetland’s problem.
2. 根据短文内容，在正确的答案处打 “√”。
What did the students NOT do to protect the wetland?
A. Pick up waste in the wetland.
B. Plant young reeds there.
C. Put up a small house by the wetland.
3. 将短文中画线的句子翻译成中文。

1. a. F b. T
2. 在选项C的方框处打√
3. 我们的老师说湿地对大自然非常重要——它们可以保持水质洁净，还能为鸟类提供栖息的家园。

1. a. 根据短文内容，两年前人们往湿地里扔垃圾，水已经变脏、鸟儿也不再飞来，湿地不再是干净美丽的状态，和题目描述不符，所以选F。
b. 文中提到学生们把湿地被污染的问题告诉老师之后，全班就加入了“保护湿地”的活动，和题目描述一致，所以选T。
2. 文中明确说明学生们为保护湿地做了捡垃圾、栽种嫩芦苇、张贴宣传标语这几件事，并没有在湿地旁边搭建小房子，因此C是学生们没有做的事。
3. 结合单词释义和语境，把画线句子通顺翻译成符合中文表达习惯的内容即可。