In most parts of the world, many students help their school make less pollution．They join “environment clubs”．In an environment club, people work together to make our environment clean．

Here are some things students often do．

No-rubbish lunches．How much do you throw away after lunch? Environment clubs ask   students to bring their lunches to school in bags that can be used again．Every week they will choose the classes that make the least rubbish and report them to the whole school． 

No-car day．On a no-car day, nobody comes to school in a car—not the students and not the teachers! Cars give pollution to our air, so remember:

Walk, jump, bike or run．Use your legs! It’s lot of fun!

Turn off the water! Do you know that some toilets can waste twenty to forty tons of water an hour? In a year, that will fill a small river! In environment clubs, students mend those broken toilets．

We love our environment．Let’s work together to make it clean．

1． Environment clubs ask students          ．

    A． to run to school every day                   B． to take exercises every day

    C． not to forget to take cars                     D． not to throw away lunch bags

2．From the passage we know that the students usually have lunch          ． 

    A． at school               B． in shops         C． in clubs        D． at home  

3． On a no-car day,          , will take a car to school．

    A． both students and teachers                   B． only students

    C． neither students nor the teachers           D． only teachers   

4． After students mend the toilet, they save          ． 

    A． a small river           B． a club           C． a lot of water  D． a toilet