Chemical or organic farming1. Teaching aims1) Knowledge aimStudents will be able to master the new words and sentences, such as chemical, damage, dangerous, have. in common, etc.2) Ability aimStudents can train their listening skills by listening to the key words and sentences and master the usage of the new words and phrases.3) Emotional aimStudents can realize the problems of chemical farming and activate their sense of environment protection.2. Important and difficult points1) Important pointStudents will be guided to master the new words, phrases and sentence , such as chemical, damage, dangerous, have. in common, etc.2) Difficult pointStudents will enhance their listening skills as well as the ability to properly and freely use the new words and sentences to talk with others.3. Teaching and learning methodsSituational teaching method; communicative teaching method; task-based teaching method；group work method; cooperation study method; independent study method4. Teaching proceduresStep 1: Lead inI will lead in the new class by asking students questions.Step 2: Pre-listening1) Showing video. I will present a video of farming to help them have a better understanding of chemical farming. And I will ask students to guess what they will listen to next.2) Showing pictures. Some new wors and phrases will be shown here. I will show some pictures with English words of phrases and let students guess the meaning.Step 3: While-listening1) Pair works. Students will be asked to listen to the tape for the first time and discuss with their desk mates what is the main idea of the text. They will be asked to share their answers.2) Listen once again. Students will be asked to listen to the tape and answer the two questions on the blackboard. They will be asked to write their answers on the blackboard.3) Group work. Students will be asked to listen for the third time and discuss what will be talked about in the following section. They will be asked to express their ideas in English in front of class.Step 4: Post-listeningRole-play. Students will be asked to rewrite the article into a dialogue with their desk mates and act it out.Step 5: Summary and homeworkI lead them to summarize what they have learned in this class.Homework: Search on the Internet and answer the question: what damage will the fertilizer cause to land and to the health of human beings.5. Blackboard designChemical or organic farming1. Main idea: 3. Discussion: What will be talked Chemical farming about in the following section?2. Details: 4. Rewri