1. When he heard about the earthquake，a ______（严肃的）expression appeared on his face.

serious

2.（2023·苏州市吴中区、吴江区、相城区期末）Last Sunday morning I was busy ______（挖）in the garden to plant trees.

digging

3. As we know，things in blue rubbish bins can be ______（回收利用）.

recycled

4. He chose to study in a junior school near his home. It turned out to be a ______（明智的）decision.

wise

5. An unhappy home ______（环境）can affect children’s behaviour.

environment

6. We can r______ air pollution by riding bicycles.

reduce

7. These accidents were c______ by increasing risks.

caused

8. Since we are going to save energy，would you please t______ off the lights?

turn

1. — ______ water，you can turn off the tap when you brush your teeth.
— All right.
A. Save B. To save C. Saving D. Saved

B

2.（2023·苏州高新区期末）— Daniel，can you ______ what green life means?
— It refers to an environmentally friendly lifestyle producing little pollution and waste.
A. excuse B. explain C. expect D. express

B

3. — I think exercising every day is ______ our health.
— Yes. I agree ______ you.
A. good for；with B. bad for；to C. good at；to D. bad at；with

A

4. — I think that there will be ______ air pollution if there are ______ people driving.
— That’s true. I hope the air will be fresher soon.
A. less；less B. less；fewer C. fewer；less D. fewer；fewer

B

Clean water is not only important for people to produce food，1. ______ also necessary for our life. However，many people in Asia and Africa don’t have enough clean water to use. The World Health Organization reports that many children die each day because 2. ______ dirty water or lack（缺乏）of water.
Farmers use 70％～85％ of the world’s fresh water to produce food. People don’t usually pay much attention to how much water industry（工业）uses，but you may be 3. ______（surprise）to know that industry uses 59％ of the water in developed countries.
Home use takes up（占据）about 8％ in the world. But as cities 4. ______（grow），more water will be used. The local government has to try to make people use less water. In about 60％ of 5. ______（Europe）cities，people are saving water by using less. They even keep waste water 6. ______ other uses. In Australia，the government has encouraged people to collect rainwater and recycle water from showers for a 7. ______（two）use.
The Environmental Protection Agency has made a water saving programme to encourage families and businesses to check their water use and save 8. ______（many）water. Scientists are looking for good water management as the key to 9. ______（solve）the problem. We can all work together to protect our fresh water in our 10. ______（day）life.

1. but 2. of 3. surprised 4. grow 5. European 6. for 7. second 8. more 9. solving 10. daily