一、听录音，补全对话。
A: Don't ______ the banana skin on the ground. ______ it up, please.
B: Why?
A: Look! There's a ______ over there.
B: What ______ it mean?
A: It ______ "No ______", so you can't ______ here.
B: Oh, I see. I ______ put it in the ______.
A: Yes, ______ right.

throw
; Pick
; sign
; does
; means
; littering
; litter
; should
; bin
; you're

二、用“↗”或“↘”标出下列句子的升降调。
（ ）1. Smoke made the air dirty.
（ ）2. Can you play basketball?
（ ）3. What makes the bedroom messy?
（ ）4. Do you sweep the floor every day?
（ ）5. What can we do to keep our city clean?

↘
; ↗
; ↘
; ↗
; ↘

三、英汉互译。
1. 扫地________
2. 在地板上________
3. 保持我们的城市干净________
4. 两只小黑鸟________
5. 两个垃圾箱________
6. 放学后________
7. 在地上________
8. 捡起它________
9. 去医院看病________
10. 太迟________

sweep the floor
; on the floor
; keep our city clean
; two little blackbirds
; two bins
; after school
; on the ground
; pick it up
; go to hospital
; too late

四、用所给单词的适当形式填空。
1. Don't ______ (throw) the rubbish on the floor.
2. There ______ (be) many cinemas in the city.
3. That boy should ______ (clean) the room every day.
4. I like ______ (eat) apples.
5. ______ (be) the water clean ten years ago?
6. It ______ (smell) bad.
7. The old man slipped on the skin and ______ (fall).
8. The pictures tell ______ (we) that we live in a dirty world.

throw
; are
; clean
; eating
; Was
; smells
; fell
; us