How ? What? W h y ? What should we do to protect the environment ? Why should we do these things? How can we do them? I think we should+ V Won’t you+ V ? It would better if you+ V Why don’t you+ V ? Why not+ V ? What/ How about+ Ving ? Now you make new sentences. reuse and recycle bottles and cans not throw trash onto the water go to school by bike put garbage bins around the schoolyard use public buses instead of motorbikes I think we should It would be better if you Why don’t you ? Won’t you ? Why not ? What/ How about ? Task 2: Work in pairs. Make a dialogue about why we should do those things. For example : Use banana leaves to wrap food/ ( plastic bags are very hard to dissolve/ save paper) A: I think it would be better if we use banana leaves to wrap food. B : Why? A: Because plastic bags are very hard to dissolve. By doing this , we can save paper. - Not throw trash onto the water / keep the water clean / polluted water can directly do harm to people’s health and kill fish. A: I think we should B : Why? A: By doing this ,we can   A: I think we should not throw trash onto the water. B : Why? A: By doing this ,we can keep the water clean. Polluted water can directly do harm to people’s health and kill fish. - Reuse and recycle bottles and cans.( reduce garbage/ save natural resources) - Go to school or go to work by bike. ( save energy/ keep the air clean) -Put garbage bins around the school yard. (prevent lazy students from throwing trash / keep the schoolyard clean) -Use public buses instead of motorbikes. ( avoid traffic jams / reduce exhaust fume/ save energy) I think we should / It would better if you Why? / How come? Because we can / By doing this, we can / If you do this, we can [...]... and fresh air d If we use much pesticide on vegetables, the vegetables will become poisonous and inedible e If we keep our environment clean, we’ll live a happy and healthy life Do Exercise 8, 9 10 ( P 45 , 46 Workbook ) ... reduce water pollution? prevent littering? reduce air pollution? reduce the amount of garbage we produce? You may begin with : We can/ should ( not) We can save paper by+ Ving Let’s check 1 2 3 4 5 6 Next How can we save paperreuse and recycle waste - We can ? How can we ? /should We can paper.(10) - We can save paper by keeping sheets with single printed for drafting.( 20) Back How can we reduce . produce?         save paper save paper   Ving Ving   Let’s check Let’s check 6 1 2 3 4 5 Next Back How can we ? We can /should   