Saving the earth（The First Period）

unit 9    saving the earth
1．brief statements based 0n the unit
    in this unit，ss will do some listening speaking，reading and writing practice．also, they will learn to use the inversion．in the first period，ss wi1l improve their speaking ability by talking about nature ecology and the environment and they will listen to some listening material about our environment．after the study of this period，they will improve their speaking and listening abilities and also know something about the problems facing the earth．in the second period，ss will read a passage about the earth summit．from the passage ss will know more about the importance of protecting our earth．in the third period．ss will study the grammar item：inversion．after doing some exercises provided in this pe 阅读全文