( )1. When we use paper, we should ______.
A. use one side
B. use two sides
C. waste it
( )2. If your shoes are broken, ______.
A. repair them
B. throw them away
C. buy a new pair
( )3. We should ______ before we buy something new.
A. think it over
B. ask our teachers
C. ask our parents
( )4. You can have a ______ instead of(代替) a butter sandwich if you only have some cheese.
A. pear sandwich
B. hot dog
C. cheese sandwich
( )5. The passage(文章) mainly tells us how to ______.
A. buy things
B. cook dinner
C. protect our environment

二、阅读短文,完成下列各题。
There are some easy things you can do to protect the environment.
· Plant trees, grass and flowers.
· Whenever you visit a park or beach, take away what you bring there-keep rubbish in a bag until you can put it in a bin.
· Turn off the lights and TVs when you leave the room.
· Turn off the tap(水龙头) when you brush your teeth. You can save some water.
· Don't pour dirty water into the rivers or the lakes nearby.
If everyone makes a contribution(贡献) to protecting the environment, the world will become much more beautiful.
(一)根据短文内容,选择正确答案。
( )1. The article(文章) is ______.
A. a sign
B. a proposal(提议)
C. a story
( )2. The writer tells us ______.
A. to throw rubbish into a bin
B. to pour dirty water into the lake
C. to turn on the tap when brushing teeth
( )3. We should not keep the lights ______ when we leave the room.
A. off
B. in
C. on
( )4. The main idea of this article is how to ______.
A. save trees
B. save water
C. protect the environment
(二)根据常识回答问题。
Know more: World Environment Day is on 1. , and Earth Day is on 22nd April. These days tell us that we should 2. .