课文再现 城镇中的每个人都应该加入到清理河流的工作中来。
Everyone in this town should cleaning it up!
迁移运用 Students in my school always an active basketball games.

课文再现：play a role in
迁移运用：take；part in

1. 对于“课文再现”部分，需要填写一个动词短语，表示“加入到……工作中来”。根据常用表达，“play a role in”表示“在……中起作用，参与……”，符合语境。由于空格后有“cleaning it up”，所以应使用“play a role in”表示“参与到清理河流的工作中来”。
2. 对于“迁移运用”部分，根据语境“我校的学生总是积极参加篮球比赛”，需要填写表示“积极参加”的短语。常用表达“take an active part in”表示此意。

1. 听句子,选择正确的答语。
1. A. It used to be so clean.
B. It's OK. C. All right.
2. A. Don't worry.
B. By writing to the government.
C. Never mind.
3. A. I can't agree more.
B. I don't think so.
C. Me, too!

ABA

2. 听对话,选择正确答案。
1. A. Protecting water.
B. Saving money.
C. Helping animals.
2. A. To save more money.
B. To protect the environment.
C. Because she doesn't like them.
3. A. Wear green clothes.
B. Drive to work.
C. Take his own bags when shopping.

ABC

由于您未提供具体的听力对话内容，无法直接解答该听力选择题。此类题目需根据听到的对话信息进行选择，解题时应注意听清对话中的关键信息（如讨论的主题、原因、建议的行为等），再与各选项对比匹配。
无（需听力材料支持）

3. 语法选择。
As middle school students, it's our duty 1 the environment. There are some methods you can follow in your life. First, we can take the bus or subway instead of 2 so that we can cut down the air 3. Then, if the way is not far you can ride a bike which has many 4. It's good for your health and it's cheap. Third, eat less meat. It 5 more energy to produce meat compared with vegetables. All in all, everyone should play 6 part in protecting the earth.
1. A. to protect B. protect C. protecting
2. A. driving B. to drive C. drive
3. A. pollution B. pollutions C. pollute
4. A. advantage B. advantages C. disadvantage
5. A. costs B. cost C. costing
6. A. the B. an C. a

1. A
2. A
3. A
4. B
5. A
6. C

1. 第一空：根据固定句型"it's one's duty to do sth"表示"做某事是某人的责任"，所以这里应该用动词不定式"to protect"。
2. 第二空：在"instead of"后面需要接动名词形式，表示"代替做某事"，所以选择"driving"。
3. 第三空："air pollution"是固定短语，表示"空气污染"，所以这里用名词"pollution"。
4. 第四空：根据句意"骑自行车有很多好处"，"many"后接可数名词复数形式，所以选择"advantages"。
5. 第五空：主语"It"是第三人称单数，且句子描述的是一般事实，所以谓语动词用一般现在时的第三人称单数形式"costs"。
6. 第六空：根据固定短语"play a part in"表示"在...中起作用"，"part"是以辅音音素开头的单词，所以用不定冠词"a"。

4. 阅读理解。
On July 1,2019, people in Shanghai are required to sort their garbage according to strict rules. Many other cities in China are planning to create similar garbage-sorting rules.
Why should we sort our garbage? The answer lies in the amount of waste we are producing. Chinese cities produce over 200 million tons of waste each year, according to China Economic Net. Most of this waste is buried (填埋) in landfills, which may pollute water and soil. Moreover, we are running out of space for new landfills.
In fact, more than half of our waste can be recycled. Recyclable garbage can be made into new materials, while wet garbage can be used to make gas, heat and fertilizer (肥料). But in order to recycle efficiently (有效率地), we need to sort our garbage.
Can't garbage-processing companies do the sorting job for us? They can. But that requires a lot of work and costs lots of money. Things will become much easier if each of us can sort our own garbage. Besides, the troublesome task of sorting might encourage people to produce less waste.
1. What's the second paragraph mainly about?
A. The importance of garbage-sorting.
B. The reason of garbage-sorting.
C. The rules of garbage-sorting.
D. The kinds of garbage-sorting.
2. What can we learn from China Economic Net?
A. People need to sort the garbage.
B. Cities plan to create garbage-sorting rules.
C. We are producing more waste.
D. There're over 200 million tons of waste each year.
3. How much of our waste can be recycled?
A. About 30%. B. About 45%.
C. About 55%. D. About 90%.
4. What's the meaning of the word "landfill"?
A. 土地 B. 填充
C. 垃圾站 D. 垃圾填埋场

1. B
2. D
3. C
4. D