八年級(jí)英語(yǔ)下冊(cè)《Unit 1 Past and Present Grammar》教案 （新版）牛津版

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1、《Unit 1 Past and PresentGrammar》 Teaching design I. Teaching Contents：Grammar Unit 1 8B II. Teaching aims: By the end of the class, the Students are able to 1. Master the structure and basic usage of the present perfect tense. 2. Master the rules of forming the past participle o

2、f verbs. 3. Master some expressions of time used in the present perfect tense. III. Teaching main points and difficulties: 1. How to understand adverbs of time and use them with the present perfect tense correctly. 2. To understand the differences between the present perfect tense and

3、 the simple past tense. IV. Teaching preparation: PPT, a computer Step 1 Warming up and leading in (1) Listen to an English song “I still haven't found what I'm looking for” (2) Simply talk about the song. (some sentences) (3) Ask some questions about the part of Reading ① How long has

4、 Mr Chen lived in Sunshine Town? ② Can Mr. Chen see his old friends as often as before? Why? (4) Present the answers on the screen. ① He has lived there since he was born. ② No. Because most of his old friends have moved away. (5) Ask Ss to pay more attention to the underlined parts. T ex

5、plains to let Ss understand the structure “have/has+past participle”. （設(shè)計(jì)意圖：通過有針對(duì)性地聽英文歌曲和對(duì)Reading部分內(nèi)容的復(fù)習(xí)，使學(xué)生對(duì)現(xiàn)在完成時(shí)有初步的了解，同時(shí)也為新課導(dǎo)入做鋪墊） Step 2 Presentation 1) Explain the use of the present perfect tense. ①. 表示動(dòng)作發(fā)生在過去并與現(xiàn)在有聯(lián)系。（We use the present perfect tense to talk about an action that happe

6、ned in the past and has a connection with the present.） eg. I have written some words on the blackboard already. (現(xiàn)在的結(jié)果是：字還在黑板上了) I have just had my breakfast.（結(jié)果是：現(xiàn)在我不餓） ③ 表示過去已經(jīng)開始持續(xù)到現(xiàn)在或?qū)淼膭?dòng)作或狀態(tài)。（We use the present perfect tense to talk about an action that started in the past and continues t

7、o the present.） eg. I have been a teacher since I left my college (大學(xué)). I have been a teacher for about 20 years.（現(xiàn)在我還是一位教師） ④ 表示某事直到現(xiàn)在已經(jīng)發(fā)生了多次。（We also use the present perfect tense to talk about how many times an action has happened till now .） eg. I have watched the TV show many times.

8、(設(shè)計(jì)意圖：層層深入、中文講解、英文舉例，幫助學(xué)生更好地認(rèn)識(shí)現(xiàn)在完成時(shí)的句式結(jié)構(gòu)，讓學(xué)生根據(jù)這些句子更好、更加容易地理解現(xiàn)在完成時(shí)） 2） Practice on PPT (設(shè)計(jì)意圖：通過聽說多種形式進(jìn)行操練，從而讓學(xué)生對(duì)所學(xué)內(nèi)容得到及時(shí)鞏固。） 3） Show the following words: already, yet, since, ever, never, just, for and recently by PPT. 1) already “已經(jīng)”，放在肯定句句中或句末； 2) yet放在疑問句句尾時(shí)，表示“已經(jīng)”；放在否定句句尾時(shí)，表示“還(沒，不)” 3)

9、 ever “曾經(jīng)”，用于疑問句或否定句中； 4) never “從來沒有”，表示否定句中。 5) just “剛剛”，用于陳述句中； 6) recently “近來”，用于句末。 Now tell Ss how to use the time expressions above to make sentences. （設(shè)計(jì)意圖：通過小組討論和操練，讓學(xué)生自己尋找現(xiàn)在完成時(shí)中的時(shí)間副詞，學(xué)會(huì)自主學(xué)習(xí)） Step 3 Further understand the structure of the present perfect tense. 1) Ask Ss to

10、look at the above sentences on ppt. again to find out the structure of the present perfect tense “have/has+past participle”. ①. Present positive statements of the present perfect tense. ②. Present negative statements of the present perfect tense. ③. Present “Yes” and “No” questions of the pres

11、ent perfect tense. (設(shè)計(jì)意圖：讓學(xué)生自覺地認(rèn)識(shí)現(xiàn)在完成時(shí)的肯定句式、否定句式和一般疑問句式及簡(jiǎn)略回答形式，培養(yǎng)學(xué)生自覺學(xué)習(xí)的良好習(xí)慣。) 2) Practice on PPT. (設(shè)計(jì)意圖：通過練習(xí)，及時(shí)鞏固學(xué)生對(duì)現(xiàn)在完成時(shí)的的肯定句式、否定句式和一般疑問句式及簡(jiǎn)略回答形式的學(xué)習(xí)。) 3) Explain the form of past participle. 大多數(shù)過去分詞的構(gòu)成“實(shí)義動(dòng)詞原形后加ed，但也有部分動(dòng)詞是不規(guī)則變化。 ① Ask Ss to read the words on the table on PPT ② Ask S

12、s to finish Part B on P14, then check the answers. ③ Ask Ss to finish Part C first, then ask two Ss to read the conversation to check the answers. (設(shè)計(jì)意圖：通過多種形式展示動(dòng)詞的過去式和過去分詞，盡量使枯燥的詞“活”起來，這樣既揭發(fā)了學(xué)生的積極性，又可以幫助學(xué)生更持久地記憶相關(guān)單詞的形式) 4) Explain the differences between the simple past tense and the present

13、perfect tense. 我們用一般過去時(shí)談?wù)撨^去發(fā)生的動(dòng)作，但當(dāng)過去發(fā)生的動(dòng)作和現(xiàn)在有聯(lián)系有影響時(shí)，我們用現(xiàn)在完成時(shí)態(tài)。 Step 4 Practice 用括號(hào)中動(dòng)詞的適當(dāng)時(shí)態(tài)形式填空： 1. I _________ (see) the 3D film Avatar. It’s amazing! I _________ (see) it a month ago. 2. —Is your grandfather still alive? —No, he _____ already ______ (die). —When _______ he _______(di

14、e)? — He _______ last year(die). 3. Mr. Li _______ (begin) to work in this factory in 1990. He ___________ (work) in the factory for 20 years. （設(shè)計(jì)意圖：訓(xùn)練學(xué)生對(duì)過去分詞、相關(guān)時(shí)間狀語(yǔ)以及現(xiàn)在完成時(shí)的運(yùn)用。） Step 5 Summary Present Perfect Tense 1. Vocabulary: yet , recently , ever , just , never, already 2

15、. Structure: have/has + P.P 3. The constituent of P.P: 1).regular verbs: 加ed；加d；變y為i加ed；雙寫輔音字母加ed 2) irregular verbs: AAA ABA; ABB; ABC Step 6 Practice Let’s try! I’m sure you can do it well. Multiple choice. 1) — _______ you ever _______ with a group? — Yes, I have.

16、 A. Did; study B. Are; studying C. Were; studying D. Have; studied 2) — Lucy, _____ you ____ your ticket? — Not yet. A. did; find B. have; found C. has; found D. do; find 3) My grandmother ______ a lot of changes in Tianjin since she came here

17、. A. sees B. can see C. will see D. has seen 4) My aunt is a writer. She ______ more than ten books since 1980. A. writes B. wrote C. has written D. will write 5) — Why won’t you go to the movie with me, Gina? —

18、Because I ______ it twice. A. see B. have seen C. saw D. will see 5) — China develops so fast. — That’s true. It ______ a lot already. A. changes B. changed C. will change D. has changed 6) Julia isn’t going to the cinema with us

19、because she ______ the film. A. sees B. saw C. will see D. has seen 7) — Look at these stamps. I _______ them for five years — Wow, they are wonderful. A. kept B. have kept C. have bought D. keep Step 7 Homework 1. Rev

20、iew the structure and usage of the present perfect tense. 2. Recite the irregular past participle verbs we’ve learned in this class. 3. Preview the part of Integrated skills. Blackboard Design Present Perfect Tense * Vocabulary: yet , recently , ever , just , never , already * Structure: have/ has + P.P * The constituent of P.P: 1) regular verbs: +ed; +d; 變y為i+ed; 雙寫輔音字母+ed 2) irregular verbs: AAA; ABA; ABB; ABC