八年級英語Unit 6 Grammar教學(xué)案牛津版

1、unit 6 natural disastersperiod 5 grammar 學(xué)習(xí)目標：1.進一步學(xué)習(xí)過去進行時。2. 學(xué)習(xí)while 和when 在過去進行時中的應(yīng)用。step 1 預(yù)習(xí)語法1. 語法簡介：過去進行時態(tài)(一）構(gòu)成 was (were) + 動詞-ing構(gòu)成。(二) 形式過去進行時的肯定式: i was working. / you were working. / he/she/it was working.we/you/they were working.過去進行時的否定式: i was not working. / you were not working. / he/

2、she/it was not working.we / you / they were not working.過去進行時的疑問式：were you working at ten last night? yes, i was. / no, i wasnt.was he working at ten last night? yes, he was. / no, he wasnt. (三）用法：過去進行時的意義：表示過去正在發(fā)生或進行著的動作。例如：you were listening to me. / they were learning english. what were you doing

3、? he was watching tv .過去進行時的用法：表示在過去某一時刻或某一時間正在進行的動作。這一特定的過去時間，除了有上下文暗示以外，一般用時間狀語來表示。when were you doing this time yesterday?-we were working in class.he was mending his bike at ten oclock yesterday.i was drawing a horse when the teacher came in.while she was trying to pass a truck before her, she s

4、aw another car coming.2. 學(xué)習(xí)了過去進行時的語法，快來完成99-100頁a1和a2部分的練習(xí)吧。做完之后，兩人一組朗讀對話，并核對答案。注意過去進行時的構(gòu)成哦。3. 聰明的你能將a2 的對話改寫成一段小故事嗎？快來顯示你的文采吧！ step2鞏固練習(xí) 小試牛刀：用所給動詞的正確形式填空：1. look! some children _(chat).2. sorry, i _(help) the baby tie the shoelace at present.3. some children _(chat) this time yesterday.4. sorry, i

5、 _(help) the baby tie the shoelace at that time.5. i _(wash) my face at 6 this morning.6. she _still _(lie) in bed this time yesterday.7. _you _(watch) tv from seven to nine yesterday evening.8. he _(drink) tea the whole morning.9. -where did you go just now? -to the teachers office. -what were you

6、doing there? -i _(solve) a math problem with my teacher. it took us a long time to work it out.step 3 拓展延伸 （part b）(一) a) 當(dāng)兩個延續(xù)（思考舉例）的動作同時發(fā)生，兩個句子都可用過去進行時來表示，用while連接，如：1. people _(run)wildly while pieces of glass and bricks _(fall)down.2. yesterday afternoon, while daniel _ _ (work) on the computer,

7、 millie _(stand) beside him.3 we _ _(clap) our hands while the performers _(march) across the park.b) 當(dāng)一個延續(xù)的動作正在發(fā)生的時候，另外一個瞬間動作發(fā)生了，可用“when”或“while”連接，較長的動詞用過去進行時，較短動詞用一般過去時1. hello kitty _(wave) to the visitors while she _(dance) to the music.2. we _(read) a terrible story when suddenly the lights _(

8、go) out.3. the doorbell _(ring) while we _(talk) on the phone yesterday.c) 一般過去時與過去進行時用法的比較: 一般過去時表示在過去某個時間發(fā)生的動作或存在的狀態(tài)，而過去進行時則表示在過去某一時刻或某一段時間正在進行的動作。如： mary wrote a letter to her friend last night. mary昨晚給她的朋友寫了封信。（信寫完了 。）mary was writing a letter to her friend last night. mary昨晚一直在給她的朋友寫信。（信不一定寫完。） practice : 用when/ while 填空： 1. _simon arrived, amy was reading. 2. i was reading english _ the teacher came in. 3. _my mother was cooking, the phone rang. 4. mrs. wang was listening to music _ her husband was reading n