九年级英语Unit 1 Topic 3 Section A教案杨月云Teaching aims and demands:1. Learn the present perfect tense including“for”and “since”.2. Learn word formation.3. Learn to care about and describe the social development and changes.Teaching Procedure: Step 1 Review1. Have a competition. Divide the students into several groups. Students give the past participle quickly after the teacher says a verb. Then choose the winner.2. Fill in the blanks using proper sign words in the present perfect tense. Check the answers.(1) Ive_called you, but nobody answered.( just )(2) Have you found him_? ( yet )(3) He has_gone home.( already )(4) I have seen him_.( before )(5) I have_seen such a wonderful movie before.( never )(6) Have you _ washed your clothes by yourself?( ever )3. Lead to 1a by using the present perfect tense.T: Have you ever been to New York? Step 2 Presentation1. Show a picture of the landscape of New York.T: Its very beautiful, isnt it? Do you want to live there? Do you know what New York was like in the past?2. Teach“as a matter of fact” by the answer to the questions in 1.T: Well, New York was dangerous in the past, but its quite safe now.As a matter of fact, its a wonderful place to live.3. Let students listen to 1a and answer the questions below, and check the answers.(1) What was New York like in the past?(2) What is it like today? Step 3 Consolidation1. Let students read 1a and mark True or False of the following sentences, then check the answers.(1) Helen has been in New York for a long time. (F)(2) There are many excellent restaurants in New York. (T)(3) Bob doesnt like New York at all. (F)(4) The streets were dirty in the past , but arent at present. (T)2. Let students read 1a again. Act out the dialog.3. Let students write a short passage to compare the streets, traffic, restaurants and living places of todays New York with those of New York in the past according to 1a,then finish 1b. Step 4 Practice1. Let students read 1a again and complete the sentences witn “since” or “for”. Finish 1c.2. Summarize the differences between“since”and “for” together with the students.3. Teach “break out”, and know about the meaning of “flood”. Let students listen to 2, finish it and check the answers.4. Write“birth +day=birthday” and “class+ room=classroom” down on the blackboard and lead to word formation-compound. Finish 3. Learn and master the new words: granddaughter, grandchild, fire, stairs, downstairs. Step 5 Project Make a survey. Write a short passage to compare the streets, traffic, restaurants and living places of todays hometown with those of hometown in the past.