五、从方框中选择合适的句子补全对话(有一项多余)。
Su Hai: What will you do for Earth Day this Saturday, Mike?
Mike: 1.
Su Hai: 2.
Mike: What about you?
Su Hai: I'll save paper. I won't waste it.
Mike: Will you use only one side of the paper?
Su Hai: 3.
Mike: Great! And I'll save water too.
Su Hai: 4.
Mike: 5. It's a small action but it helps.
Su Hai: Wonderful! Let's do it together.
A. I'll take a cloth bag and walk to the supermarket.
B. It's good for the environment.
C. Let's go together.
D. What will you do to save water?
E. No, I won't. I'll use both sides of the paper.
F. I'll turn off the tap when I brush my teeth.

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

六、阅读理解。
Last week, Class 6 had a “Green Week”. They saved energy, water and paper. Here is their record.

The class also collected plastic bottles. On Monday, they collected 15 bottles. Each day after that, they collected 5 more bottles than the day before.
On Friday afternoon, they planted 3 trees near their school.
根据材料内容，选择正确的答案。
()1. How many hours did they turn off the lights from Monday to Wednesday?
A. 5 hours. B. 6 hours. C. 7 hours.
()2. How many plastic bottles did they collect on Friday?
A. 30 bottles. B. 35 bottles. C. 40 bottles.
()3. On which day did they save the most water?
A. Tuesday. B. Thursday. C. Friday.
()4. How many more sheets of paper did they save on Thursday than on Wednesday?
A. 10 sheets. B. 15 sheets. C. 20 sheets.

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