Review 3
Listen and choose

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

听录音，选出你所听到的单词。
() 1. A. station B. pollution C. attention
() 2. A. what B. when C. white
( ) 3. A. spring B. king C. beginning
() 4. A. ball B. small C. wall
() 5. A. loved B. jumped C. joined

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

听对话，根据问题选择正确答案。
（）1. A. He turns off the lights.
B. He travels in a green way.
C. He rides to school.
（）2. A. They reuse paper bags.
B. They reuse cans.
C. They reuse glass.
（$）3. A. Trees take in CO_{2}.$
B. Trees give homes to animals.
C. Trees warm up the air.
（）4. A. Turn off the tap while brushing his teeth.
B. Save rainwater to water the plants.
C. Turn off the tap after washing hands.
（）5. A. People use solar power for homes.
B. People use too much energy.
C. People use wind power for homes.

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

听短文，选择正确答案。
（）1. Liu Ming and his friends went to the last Sunday.

A.factory
B.countryside
C.city

1. C