八年级英语下册 Unit 1 Past and present Grammar 2教案二 牛津版.doc

period 6 grammar ii(time expressions with the present perfect tense)teaching goals to consolidate the present perfect tense to learn to use time expressions with the present perfect tenseteaching proceduresstep 1 having a revisionhave a dictationwrite down the past participle of the following verbs. 1. repair 2. marry 3. see 4. change 5. turn 6. pollute 7. feel 8. throw 9. write 10. make step 2 talking about the present perfect tensewe use the simple past tense to talk about what happened at a definite time in the past. we use the present perfect tense to talk about things that started in the past and continue to the present. we also use the present perfect tense to talk about things that happened in the past but with connection with the present. whats the form of the present perfect tense? have /has (+not) + past participlewhat typical time expressions can we use with the present perfect tense? already, yet, ever, never, just, recently, for, sincestep 3 finishing exerciseschoose the correct adverbs of time to complete the sentences.1. have you done your homework _? (for, just, already)2. i have _been to chengdu. (ever, never, yet)3. he has _washed the dishes. (already, ever, for) 4. he has worked there _he left school. (already, just, since) 5. she has known sam _nine years. (for, never, since) 6. they have _arrived. (ever, just, yet) step 4 doing practices make a dialogue like this: a: have you ever finished your homework? b: yes, i have. /no, i havent. a: when did you do it? /when will you do it? b: i did it last night. /ill do it tomorrow. step 5 playing a game1. play the game in order to familiarize students with sentences using the present perfect tense. write down the following sentences on the blackboard. 1. has traveled to beijing2. has seen the space exhibition3. has kept a rabbit as a pet4. has been to beaches5. has slept in the tent6. has spoken to the foreigners7. has written a poem8. has worked in a hospitalthe students ask each other: “have you ever ?” at last, the student makes the sentences like this: jim has traveled to beijing. 2. the aim of the game is to help students to tell the differences between the simple past tense and the present perfect tense. work in pairs. a asks jim: “when did you travel to beijing?” “last summer holiday.” at last, the students make sentences like this: jim says he traveled to beijing last summer holiday. step 6 doing additional exercisesmillie and sandy are talking about their history project. complete their conversation using the correct forms of the verbs in brackets. millie: hi, sandy. (1)_ you _ (start) your history project yet? sandy: yes. i (2) _ (look) on the internet to get some ideas, but i (3) _ (not write) the report yet. millie: what (4) _you _ (decide) to write about? sandy: i want to write about tianjin. (5) _you _ (be) there? millie: yes, i (6) _ (go) there with my family last year. i think tianjin (7) _ (not change) much. sandy: i think there (8) _ (be) some changes. i (9) _already _ (learn) a lot about the history of the city. (keys: 1. havestarted 2. have looked 3. havent written 4. havedecided 5. havebeen 6. went 7. hasnt changed 8. have been 9. havelearned/learnt) step 7 doing homeworka. review the uses of the present perfect tense. b. correct the mistakes in the following sentences. 1. do you know when he has lived here? _ 2. i have written to my pen friend for a week ago. _ 3. i havent eaten something since 9 a.m. _ 4. they havent heard from jims letter for a long time. _ 5. the shop has opened for about ten years. _ (keys: 1. do you know when he began to live