In most parts of the world, many students help their schools make less pollution.They join "environment clubs".____

    No-garbage(垃圾) lunches. ____ Environment clubs ask students to bring their lunches in bags that can be used again.Every week they will choose the classes that make the least garbage and report them to the whole school!

    ____On the no-car day, nobody comes to school by car-not the students and not the teachers!  Cars give pollution to the air, so remember: Walk, jump, bike or run.Use your legs!  It's not only good for the environment but also lots of fun!

    ____Did you know that some toilets could waste twenty to forty cubic meters(立方米)of water an hour? In a year, that would fill a small river！ In environment clubs, students mend those broken toilets themselves.

    We love our environment. ____

    I think 1likes dogs. Dogs are our friends. My friend Tomson likes dogs very2 . He has a big dog. 3name is Bobo. He's bright(聪明的). Every Saturday aftemoon Tomson takes Bobo for a long walk in the street. Sometimes Tomson takes Bobo to the park. Tomson4the frisby and Bobo catches it in the air. Bobo can open the door and close the door. When Tomson goes to school, Bobo stands in5of the door and waits6Tomson coming. When he sees Tomson, he7 the door and catches his bag. What a bright dog!

    I like Bobo. I often go to Tomson's home to play8 him. I often give Bobo  9  to eat. I want to have a dog, too.