一、根据句意及首字母提示写单词，补全句子。
1. We should t a quick shower to save water.
2. Use LED l to use less electricity.
3. Don't forget to u your TV when you don't use it.
4. We can r old bottles to make new things.
5. Mother Earth is running out of r, so we must save energy.

1. take 2. lights 3. unplug 4. reuse/recycle 5. resources

二、将左右两栏的短语与意思匹配。

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

三、根据图片选择符合情景的句子。
()1.
A. We can set the air conditioner to 26℃ in summer.
B. We should turn the air conditioner to the coldest.
C. Air conditioners use no electricity.
()2.
A. We should only use one side of the paper.
B. Using both sides of paper helps save resources.
C. Paper is not useful at all.
()3.
A. Leave the tap running all the time.
B. Turn off the tap when you don't use it.
C. We can waste water every day.
()4.
A. Bring your own bags to the market.
B. Use many plastic bags every time.
C. Don't use any bags when shopping.

1. A 2. B 3. B 4. A