1、九年級上冊,2,Wonders of the world,Module,Unit 3 Language in use,1. While were staying with them, were going to spend a few days in Qingdao. 2. Lets enjoy ourselves until we go back to school. 3. And its the last day before the new school year begins. 4. When September comes, it starts to get cooler.,Lang

2、uage practice,5. As soon as its 12 oclock, everyone shouts very loudly. 6. We have celebrated the festival since the first pioneers from England arrived in America. 7. After we landed, their first winter was worse than any English winter.,時間狀語從句,Grammar,when 當(dāng)?shù)臅r候 while 在期間 as 正當(dāng)之時 before 在之前 after 在

3、之后 since 自從以來 until 直到時為止 as soon as 一就,常見引導(dǎo)時間狀語的連詞：,時間狀語從句根據(jù)其所表示的時間不同，所 使用的連詞也不同。常見的時間狀語從句有:,1. 由 when 引導(dǎo)的時間狀語從句： 表示主句的動作和從句的動作同時發(fā)生， 或從句的動作發(fā)生在主句動作之前。如：,I was going out when a visitor came. (我正要出門，有客人來訪) (動作同時發(fā)生) I shall tell her the good news when she comes. (她來時，我將告訴她這個好消息),2. 由 while 引導(dǎo)的時間狀語從句： 表

4、示“當(dāng)過程中”，強(qiáng)調(diào)某一段時間內(nèi) 主句和從句中謂語動詞所表示的動作在同一 時期發(fā)生。由于 while 從句表示一個持續(xù)的 行為，所以從句中要用持續(xù)性動詞，并且 持續(xù)性動詞常用進(jìn)行時態(tài)。如：,Keep an eye on my little sister while I am away. (我不在時，請照看一下我的小妹妹。) While we were watching TV, Jim came in. (我們看電視的時候，吉姆進(jìn)來了。),3. 由 as 引導(dǎo)的時間狀語從句： 表示時間，當(dāng)?shù)臅r候 ，一邊一邊 隨著其從句的主語與主句的主語往往是同一人或物，如：,She sang as she wo

5、rked. 她一邊工作一邊唱歌。 (此句主從句還可使用進(jìn)行時) She was singing as she was working.,I saw him as he was getting off the bus. 正當(dāng)他下公共汽車時，我看見了他。 As a child, he lived in America. 他小時候住在美國。 You will grow wiser as you grow older. 隨著你年齡的增長，你會變得更聰明。,4. 由 before 引導(dǎo)的時間狀語從句： 一般表示主句的動作發(fā)生在從句動作之前。,I had written my report before

6、my father came back. 我父親回來之前，我已寫完我的報告。 （為了表明主句的動作發(fā)生或完成在從句動作 之前，主句動詞一般用過去完成時，從句中 動詞用過去時，以區(qū)分動作的先后）,I didnt know any English before I came here. 我到這兒來之前，一點英語都不懂。 (雖然主句的動作發(fā)生在從句動作之前, 主句 和從句中動詞都可用過去時),After he had finished his work, he played a game of chess with his friend. 他做完工作后, 和朋友下了一盤棋。 (“做完工作”在前， “

7、下棋”在后,為了表明 動作的先后，從句中的動詞一般用過去完成時， 主句中的動詞用過去時),5. 由 after 引導(dǎo)的時間狀語從句： 表示主句的動作發(fā)生在從句動作之后。如：,After he locked the door, he left. 他鎖上門，就走了。 (雖然從句的動作在前, 主句的動作在后, 但表示過去發(fā)生的連續(xù)動作，都可用過去時),6. 由since引導(dǎo)的時間狀語從句： 表示“自從以來”， 從句中的動詞一般表示 動作的起點, 用過去時。主句中的動詞表示動作 延續(xù)的情況, 一般用現(xiàn)在完成時。如果主句中 的動詞表示的不是延續(xù)的動作而是表示目前的 狀態(tài), 可用一般現(xiàn)在時。如：,Sinc

8、e he met this good friend, he has made great progress in his studies. 自從遇見了這個好朋友, 他已在學(xué)習(xí)上取得 了巨大的進(jìn)步。,7. 由 until 引導(dǎo)的時間狀語從句： a. 表示“直到為止”, 主句和從句都用肯 定式, 主句謂語動詞為持續(xù)性動詞。 b. 表示“直到才”, 主句用否定式, 從句 用肯定式, 主句動詞為短暫性動詞。,They worked until it was late. 他們一直工作到天黑。 She didnt go to bed until she (had) finished her homewor

9、k. 她一直到寫完作業(yè)才睡覺。,8. 由 as soon as 引導(dǎo)的時間狀語從句： 表示“一就”。如：,As soon as she came to the classroom, she began to read English. 她一到教室, 就開始讀英語。,1. Lucy knew nothing about it _ her sister told her. A. because B. until C. if D. since,Exercise,3. The young man traveled all over the world _ he had a man-made leg.

10、A. though B. if C. as D. because,B,2. Other people wont be pleased if he _ the queue. A. will jump B. jumps C. jump D. jumped,B,A,4. The students will go to Summer Palace if it _ tomorrow. A. dont rain B. wont rain C. doesnt rain D. isnt rain,C,1. Do you do your homework before you have dinner? 2. D

11、o you listen to music while you do your homework? 3. What do you do after school? 4. Do you get out of bed as soon as you wake up? 5. What do you say when someone gives you a present? 6. What will you do until the end of term?,Ask and answer,Writing about a Chinese festival,Module task,Tasks: 1) Write about the festival. 2) Make a poster for the festival. 3) Display your poster in the classroom.,Work in groups. Choose a Chinese f