四、完成句子
1. 我们应该知道如何过环保的生活。
We should know .
2. 我们可以拼车上学以减少空气污染。
We can to reduce air pollution.
3. 这些环保的产品在超市很受欢迎。
These in the supermarket.
4. 他意识到了保护环境的重要性，开始努力保护环境。
He and began to work hard on it.
5. 脏水被倒进了湖里，导致了水污染。
，which led to water pollution.

1. how to go green 2. share a ride to school
3. eco-friendly products are very popular
4. was aware of/realized the importance of protecting the environment
5. Dirty/Unclean water was poured into the lake

五、阅读理解
It's not WASTE until it is WASTED!
With the World Environment Day coming, our school is now requiring every student to form a habit of sorting(分类)the waste. Here in our schoolyard we lay four different colours of rubbish bins for different kinds of rubbish. The red is for harmful waste; the blue is for waste that can be recycled; the green is for kitchen waste; the yellow is for other waste.
The following are some instructions for you.
Glass: Empty glass bottles without caps can be recycled to make new glass bottles.
Warning: Mirrors and light bulbs(电灯泡)must not be included in the glass waste.
Paper: Newspapers, magazines and boxes must be clean enough to be recycled.
Warning: Paper tissues(餐巾纸)and wall paper are not recyclable as paper and should be kept separately.
PMD waste: Packaging(包装)made of plastic, metal and drink boxes are used to make new packaging.
Warning: Plastic pots and plastic bags must not be included in the PMD waste.
Harmful waste: Out-of-date drugs(药), used batteries, paint and oil...
Besides, if you don't need your old bikes, our school volunteers will collect them. We're going to fix them up and then give them away to kids who don't have enough money for a bike.
To find out more about recycling, you can visit our school's website.
() 1. From the passage, we can see that are harmful to the environment.
A. paper tissues
B. empty bottles
C. drink boxes
D. out-of-date drugs
() 2. If you give your old bike to the volunteers, it will be .
A. sold to collect money for the poor kids
B. fixed up and given back to you for free
C. fixed up and given away to the poor kids
D. given away to the poor kids at once
() 3. The main purpose of this passage is .
A. to look for volunteers for waste sorting
B. to introduce waste sorting to the students
C. to introduce the World Environment Day
D. to advertise(做广告)glass, paper and plastic products

1. D 2. C 3. B