1. How much of the water on Earth canbe drunk(可飲用的 )?
A.1%
B. 10%
C. 90%
2.Which one cannot be recycled(可回收的)?
A.newspaper
B.clothes
C.used tissue(使用過(guò)的紙巾)
3. It takes more than_____for a plastic bag to degrade(降解).
A. 5 years
B. 10 years
C. 50 years
4.A button battery(鈕扣式電池)can pollute(污染)____of water. That's the amount(總量)ofwater a person drinks in his/her whole life.
A. 200 tons(噸)
B. 400 tons
C. 600 tons
答案
A C C C