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2019-2020年高中英语 Unit 9 lesson 3 Clean Machines 教案 北师大版必修3Teaching aims:To pare and practise using the Present Perfect and Present Perfect Continuous tense.To learn some words and expressionsTeaching aids: CAITeaching procedures:Step1. warm up l Elicit information about vehicles from students, asking them how many kinds of car they can name, what kinds of power vehicles can use, what are the advantages or disadvantages of these energies.l Get students to look at the title “clean machines” “ solar car racing” and guess what the text is about.Step2. pre-readingl Read the instruction and key words with the class. Encourage students to use their background knowledge and imagination, talking about solar cars in class.l Student predict what the interview is about by skimming the titles, pictures, the sentences in the pictures.Step3 read to learn l Read the statement through with the class and ask students to guess if they are true or flase.l Students then read the interview to check their guesses.l Check students answer by having them read out the section of the text that gives the answer and correct the false statements.Step4 speaking l In pairs, students role play the interview. Encourage them to practise it as a real interview.l Have some pairs to present their interviews in class.Step5 language study-Present Perfect and Present Perfect Continuous Task1. exercise 5l Students look back at the interview and plete the sentences.l Check students answers before they match the sentences with the pictures.l When checking answers, ask students if the action described by the verb is still going on and inplete or if it is finished and pleteTask2. exercise7l Students work in pairs, reading the situation and discussing which is the more appropriate sentence.l Check students answer by having the pairs read out the situation and sentence.
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