1 —Look at this
—It means “No
—I see. We should put rubbish in the
—Yes!
2 —What makes the air dirty?
—
—What can we do to keep the air clean?
—We can
3 —Is the
—No, it’s dirty and
—What can you do to keep it clean?
—I can
—That’s right.
4 —Don’t
—I’m sorry, Dad.
—We should
—Yes, Dad.
sign
. What does it mean?—It means “No
littering
”. Rubbish makes the river
dirty.—I see. We should put rubbish in the
bin
.—Yes!
2 —What makes the air dirty?
—
Smoke
from cars makes it dirty.—What can we do to keep the air clean?
—We can
take
the bus or the metro
to school or work.3 —Is the
kitchen
clean?—No, it’s dirty and
messy
.—What can you do to keep it clean?
—I can
sweep
the floor and clean
the table.—That’s right.
4 —Don’t
throw
the banana skin on the ground. It will (会) make
the street messy.—I’m sorry, Dad.
—We should
keep
the streets clean and tidy.—Yes, Dad.
答案
1. sign; littering; river; bin
2. Smoke; take; metro
3. kitchen; messy; sweep; clean
4. throw; make; keep
2. Smoke; take; metro
3. kitchen; messy; sweep; clean
4. throw; make; keep
