课件6张PPT。Unit 4 Global warmingUsing languageSkim the letters and find who the writers are and what their purpose of writing the letters is.The first letter is written by a student who is asking for suggestions for his project- - global warming.The second letter is written by an editor of Earth Care magazine. He offers the student some suggestions on what to do about global warming..Now Scan the letter and list Earth Care’s suggestions and then in groups, discuss whether you think you can carry out each suggestion. Give reasons for your answersSample answersMake a poster Give your plster a large heading.
Use imperative sentences to list the ways we can reduce the amount of carbon dioxide in the air.
Try every possible way to make your poster impressive, which is the purpose of a poster.