一、根据首字母或汉语提示，写出所缺单词
1. Some causes of (土壤) pollution are chemical waste and other rubbish from humans.
2. What can we do to (减少) air pollution?
3. We can plant more trees or use less (空调).
4. Can you tell me something about water pollution? Some rivers look u.
5. I think we should use more (环保的) cleaning products.

1. soil
2. reduce
3. air conditioning
4. ugly
5. green

1. 根据汉语提示“土壤”，结合本单元词汇，对应的英文是不可数名词soil，直接填入即可。
2. “减少”对应的英文动词是reduce，此处to后接动词原形构成不定式，符合语法要求。
3. “空调”对应的不可数名词短语air conditioning可被less修饰，符合题目搭配要求，是本单元重点词汇。
4. 根据首字母u及“水污染”的语境，河流看起来令人厌恶，对应的英文单词是ugly，符合语境。
5. 根据汉语提示“环保的”，在本单元语境中green可表示“环保的”，符合要求。

二、用所给单词的适当形式填空
1. You’d better not (pour) dirty water into rivers and lakes.
2. It is a good idea (ride) a bike or take the bus outside every day.
3. We can choose quiet machines and turn down music (reduce) noise pollution.
4. Reducing the (burn) of unclean fuels and planting more trees helps fight air pollution.
5. Now water pollution is a serious problem, so I suggest using (eco-friend) cleaning products.

1. pour
2. to ride
3. to reduce
4. burning
5. eco-friendly

1. 考查固定搭配“had better (not) do sth.”，意为“最好（不要）做某事”，需用动词原形。
2. 考查固定句型“It is a good idea to do sth.”，意为“做某事是个好主意”，此处用动词不定式。
3. 考查动词不定式的用法，此处用动词不定式作目的状语，表“选择安静机器、调低音乐”的目的。
4. 考查名词的用法，定冠词the后接名词，burn的名词形式为burning，表“燃烧”。
5. 考查形容词的用法，需要形容词修饰名词短语“cleaning products”，eco-friend的形容词形式是eco-friendly，意为“环保的”。

三、阅读短文，从下面方框中选择适当的单词或词组填空，使短文内容完整正确(六选五)
chemicals; poured into; eco-friendly; make a difference; fuels; go green

Nowadays, pollution is a big problem for our planet, including soil pollution, noise pollution, air pollution, and water pollution. These issues have a bad influence on our health and daily life. But we can do something to “(1)” and protect the Earth.
To fight water pollution, we must stop dirty water from being (2) rivers and lakes. For air pollution, using (3) products instead of harmful ones can help keep the air clean. When it comes to noise pollution, we should try to keep quiet in public and avoid loud noises. For soil pollution, we can plant more trees and reduce the use of bad (4).
Everyone can play a part in “going green”. By choosing eco-friendly products and changing small habits, we can (5) and reduce all kinds of pollution step by step. Let’s start now to make our planet healthier!

(1) go green
(2) poured into
(3) eco-friendly
(4) chemicals
(5) make a difference

1. 结合语境，此处表达我们可以采取行动“践行绿色生活”来保护地球，“go green”意为“过环保生活；践行绿色生活”，符合语境。
2. 这里是指阻止脏水被倒入河流湖泊，“poured into”意为“倒入”，此处用被动语态形式，契合语义。
3. 为对抗空气污染，使用环保产品替代有害产品有助于保持空气清洁，“eco-friendly”意为“环保的”，用来修饰products，符合要求。
4. 针对土壤污染，我们可以通过种树和减少有害化学品的使用来改善，“chemicals”意为“化学品”，符合土壤污染相关的语境。
5. 通过选择环保产品和改变小习惯，我们能够发挥作用，逐步减少各类污染，“make a difference”意为“有影响；起作用”，符合语境。

四、根据中文提示完成下列句子
1. 在日常生活中，我们有很多方式去过环保的生活。
In our daily life, we have many ways .
2. 首先，我们可以选择公共交通或骑自行车来减少空气污染。
First, we can or ride bicycles .
3. 对工厂来说，不把化学品倒入河流和湖泊是明知的做法。
For factories, it is .
4. 为了减少噪音污染，我们可以要求司机减少道路上卡车和公交车产生的噪音。
To reduce noise pollution, we can .
5. 此外，我们还应该多种树来改善环境。
Moreover, more trees should .

1. to live a green life
2. choose public transport; to reduce air pollution
3. wise not to put chemicals into rivers and lakes
4. ask drivers to reduce the noise from trucks and buses on the road
5. be planted to improve the environment

1. 考查固定搭配“way to do sth.”（做某事的方式）和本单元核心短语“live a green life”（过环保的生活），此处用不定式结构作后置定语。
2. 第一空考查短语“choose public transport”（选择公共交通），第二空用不定式作目的状语，搭配“reduce air pollution”（减少空气污染），符合语境逻辑。
3. 考查固定句型“It is + adj. + not to do sth.”，“wise”表示“明智的”，“put chemicals into rivers and lakes”是“把化学品倒入河流和湖泊”，符合题目表达的含义。
4. 考查短语“ask sb. to do sth.”（要求某人做某事），结合“reduce the noise from trucks and buses on the road”（减少道路上卡车和公交车产生的噪音），契合题意。
5. 考查被动语态，trees和plant是被动关系，用“be planted”，不定式“to improve the environment”（改善环境）作目的状语，符合语法和语境。