高中英語Unit21《Human Biology》教案 北師大版選修7

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111 Unit21 Human Biology Teaching aims 1.words and phrases 2.to write a discursive essay 3.to practise using linking words and phrases 4.to listen to and understand a TV panel discussion 5.to finish the exercises about the text 6.pronunciation Teaching time Two periods Teaching process Step 1 Revision 1.dictation 2.check the homework exercises Step 2 new words learning 1.ask some students to read the new words first and correct their pronunciation 2.play the tape and have them read after the tape. Step 3 writing 1.exercise 1 a)ask students to read the given words and expressions in exercise 1 first . b)read the instructions and the example sentence to the class. c)ask some students do exercise 1 on blackboard 2.exercise 2 a)give students a few minutes to read the text and do the exercise b)check their answers 3.exercise 3 a)students do the exercise individually b)check their answers by having individuals read out the sentences. step 4 listening:a TV programme 1.exercise 1 a)read out the types of programme to the class.make sure that they understand what they are. b)look at the picture,let students guess what type of programme this is. 2.exercise 2 a)listen to the cassette for students to check their answer to exercise 1. b)play the tape again,let students put these topics in the order they are mentioned. 3.exercise 3 a)let students read the sentences first b)play the cassette twice for them to complete the sentence. c)check their answers step 5 pronunciation:exercise 4 1.give students a few minutes to read through the sentences and the option answers 2.play the tape twice for students to listen and choose the correct meaning. 3.check the answers step 6 speaking:a discussion 1.exercise 1,read out the instructions to the class first. then play the cassette twice for students to decide what Tom’s and Jan’s opinions are. 2.exercise 2 a)let students read through the words and colloquial expressions. b)play the tape twice for students to match the words and expressions 3.exercise 3,students do the exercise in pairs, then check their answers. step 7 homework exercise 2 on page 87 ? 111