.Unit 22 Environmental ProtectionWarm-up and Lesson 1 Global warming教案Teaching aims1. learn news words and phrases2. warm-up: talk about and discuss environmental problems3. text:global warming . get the general idea of the text4. language points and to practise using reporting verbs.Teaching timeTwo periodsTeaching processStep 1 RevisionStep 2 new words learning1.ask some students to read the new words first and correct their pronunciation2.play the tape and have the
