Grammarppt配套教案板书设计

Grammar The present perfect tense

Ⅰ.Teaching aims: 1. Knowledge: a. The structure of the present perfect tense. b. The usages of present perfect tense. 2. Ability: a. Enable students to use the correct tense in their writing and speaking. b. Enable students to use the right words in the present perfect tense. 3. Feelings and attitude: a. Let the students know the importance of English grammar. b. Try to build up students’ confidence in themselves c. Encourage students to speak English in public. Ⅱ. Important Points: a. let the students understands the usages of present perfect tense. b. The differences between past simple tense and present perfect tense. Ⅲ. Difficult Points: Help students use present perfect tense with verbs to describe events

happen at a particular point in time and to describe events that can continue over a period of time

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Ⅳ.Teaching aids A computer, a projector, black board, chalks Ⅴ. Teaching procedures: Step1. Revision & lead-in (2min) Step2. Present perfect tense 1. The structure of present perfect tense. After reading these sentences, ask students to find the structure of these

sentences with present perfect tense. 1). 主语+have/has+done 2). 主语+have/has+not+done 3). 主语+have/has+been+done 4) Have/has+主语+done. 2. The usage of present perfect tense Play the PPT and show a time line on the screen: 1). Usage1: “完成用法”

表影响

1.强调过去发生的动作对现在造成的影响或结果，常用状语有：already, yet, never, ever, just, before ... E.g.1. I have just cleaned my hands. E.g.2. I have lost my wallet. E.g.3. I have already finished my homework. I am free. 2.Show the following sentences and have students summarize the

difference between the past simple tense and present perfect tense.

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He has already read that book. (说明他现在知道那本书的内容) He read that book last year. (只说明他去年读过那本书 ) He has gone to America. (他现在不在此地, 在美国) He went to America eight weeks ago. (只说明他去过美国) summary：一般过去时表示过去发生的动作或存在的状态，与现在情况无关，常用时间状语为yesterday, last year, in the past等，而现在完成时与现在有关。 2). Usage2: “未完成用法”

表延续

表动作或状态已开始，持续到现在，可能还会继续进行下去，常用时间状语since+时间段ago/时间点/从句, for+时间段,since then,ever since,so far,up to now,till now. E.g.1. I have lived here since 2003. E.g.2. I have studied English for seven years. E.g.3. Up to the present everything has been successful. E.g.4. He has stayed here since 5 hours ago. Step3. Two kinds of verbs 1. The definitions 1). Lead in this part by asking students a question:

现在完成时的未完成用法只适用于延续性动词，短暂性动词的现在完成时的肯定式不能和表示一段时间的状语连用。 2). Show two groups of words and lead students to get the definitions. ①短暂性动词: 表示短暂的运动状态（瞬间完成或延续时间很短的动

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词).(start, begin, come, go, leave, arrive, reach, join, marry, open, close, give, lend, borrow, finish, break, see, hear, notice, find, understand, die.... ②延续性动词:表示持续的行为或状态的动词,能和表示一段时间连用.(be, keep, have, live, study, work, teach, stay, read, play, fly, talk, rain, run...) 2. Replacement of these two kinds of verbs Help students know the corresponding verb of verb describing events

happen at a particular point in time with a group of correction exercises.

Step4. Exercises Step 5. Summary & homework 1. Summary. After finishing the exercises, let several students stand up and repeat what they have learned this class, then if necessary, the teacher adds something they missed. 2. Homework Complete the activity2 on Page34 and the activity3 on Page36.

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