1. The room is
2. Smoke
messy
and dirty
. To make
it clean, we can sweep
the floor. We can also clean
the tables. 2. Smoke
from
factories makes
the air dirty. We can plant
more trees to keep
the air
clean.答案：1. messy, dirty, make, sweep, clean 2. from, makes, plant, keep, air
一、听录音,选择合适的答句。(听两遍)
(
(
(
(
(
(
B
) 1. A. Yes, you can. B. Yes, we can. (
B
) 2. A. It means you can't smoke here. B. They mean you can't smoke here. (
B
) 3. A. That's OK. B. OK. (
A
) 4. A. He is looking for the bananas. B. He gives Sam the bananas. (
B
) 5. A. We can plant more trees. B. We can sweep the floor and clean the desks.答案：1. B 2. B 3. B 4. A 5. B
二、听录音,完成对话。(听两遍)
Miss Li and her students are
Miss Li: What
Su Hai: Smoke from cars and
Liu Tao:
Miss Li: We can do
Miss Li and her students are
having
an English lesson now. There are some old pictures of their city
on the blackboard. Miss Li: What
made
our city dirty? Su Hai: Smoke from cars and
factories
made the air
dirty. Liu Tao:
Rubbish
made the street messy
and dirty. Miss Li: We can do
many
things to keep
our city clean.答案：having, city, made, factories, air, Rubbish, messy, many, keep