I Listen and choose.（听录音，选出句子中你所听到的内容。）
()1. A. water B. wind C. wood
()2. A. power B. colour C. problem
()3. A. energy B. electricity C. engineer
()4. A. find out B. look out C. talk about
()5. A. come down B. learn from C. come from

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

Ⅱ. Listen and write.（听录音，补全短文。）
Water is useful. We use water every day to wash hands and 1. . It's also important for making 2. . Running water can make 3. , and we can get power from the sea too. Water comes from 4. , lakes and seas. Only a small amount of water on Earth is 5. water, so we should 6. water.

1. clothes 2. power 3. electricity 4. rivers 5. fresh 6. save

Ⅲ. Read and choose.（单项选择。）
()1. I need to choose a topic for my science report. I should talk about water.
A. May B. Maybe C. Must
()2. —Why are the Siberian Tigers（东北虎）in danger? Let's find out about it on the internet.
—!
A. Thank you B. I don't know C. Good idea
()3. —We save water, Jim.
—You're right, Joe. And we waste energy.
A. should; should B. should; shouldn't C. can't; can

1. B 2. C 3. B

Ⅳ. Read and choose.（读一读，选择合适的选项补全对话。）
Mr Li: Children, what's the date today?
Wang Tao: 1.
Mr Li: Today is a special day. It is World Water Day.
Li Na: What's it for?
Mr Li: 2.
Zhang Wei: Where does water come from?
Wang Tao: 3.
Chen Jie: How do we make use of water?
Wang Tao: 4.
Zhang Wei: Farmers use water to grow crops（庄稼）.
Mr Li: So water is very useful.
Children: Yes. 5.
A. Let's save water together.
B. It tells people to save water.
C. It's March 22nd.
D. We use water to wash our hands, vegetables and clothes.
E. It comes from rivers, lakes and seas.

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