高中时间状语从句复习课件王衡英语育英科技.ppt

,Welcome,Revision of the Adverbial Clauses 复习状语从句,复习目标：,通过复习使学生懂得状语从句的定义、句法功能、分类、引导词，及各类状语从句的用法，联系试题提高学生分析和解决问题的能力。 知晓状语从句的考查热点及做题方法。 复习难点： 一些易混引导词的用法。 复习方法： 自主学习;小组讨论;导学导练。,Step 1: 自主梳理：,状语从句是在复合句里用来修饰主句中的_动词、_动词、_、_或整个句子。 状语从句一般由_引导。从句位于_、_或_。位于_或_时通常用逗号隔开，位于_时可以不用逗号隔开。 状语从句一共有_种，他们是_。,谓语,非谓语,形容词,副词,连词,句首,句中,句末,句首,句中,句末,九,条件状语,原因状语,目的状语,地点状语,比较状语,结果状语,时间状语,让步状语,方式状语,状语从句有九种， 时地条件和原因， 目比结果方让步， 连词引导各不同； 主句通常前面走， 连词引导紧随后； 从句若在主前头， 主从之间有个逗。,状语从句用法小结,Back to school,重点,状语从句的时态问题;,难点,常考点,时间状语从句,各种从属连词的含义及用法比较；,状语从句的时态问题;,各种从属连词的含义及用法比较；,时间状语从句,状语从句的时态问题;,各种从属连词的含义及用法比较；,状语从句的时态问题;,各种从属连词的含义及用法比较；,时间状语从句,让步状语从句，条件状语从句,状语从句的时态问题;,各种从属连词的含义及用法比较；,掌握状语从句的关键,1.准确掌握每一个连词的含义。 2.注意主句和从句的时态呼应。,1.时间状语从句,Step 2: 重点研讨：,Do you finish the sentences?,1. It was already eight oclock _we got there. 2. _ he was speaking, everybody listened carefully. 3. He had learned Chinese _ he came to China. 4. _ the work was done, we sat down to sum up experience. 5. . I havent seen him _ he moved to the other side of the town.,When,while,before,After,since,Do you finish the sentences?,6. I waited _ he came back. 7. I was about to go out _ a visitor came. 8. She sings _ she goes along. 9. The thieves ran away _ they caught sight of the police. 10. It was not _ he took off his eyeglasses that I recognized him.,as,as soon as,when,until,until,Do you know the sentences?,1. I felt bad the first time I talked to a group. 2. . I recognized you the moment I saw you at the airport. 3. By the time I was sixteen, my dream had come true. 4. Now whenever we go to the pub, we play our songs and buy drinks for the friends. 5. Hardly had he reached the school gate when the bell rang.,时间状语从句的常用引导词,when, while, as, before, after, whenever, since, until / till, notuntil, as soon as, the moment, the minute, the second, the instant, immediately, directly, instantly, hardly/scarcelywhen, no soonerthan every time, each time, every year, each year, the first /second/last time, the day, any time, by the time, every/each time,完成句子，总结when的用法,1._(当电影结束时), the people went back. _ (当我住在那里的时候), I used to go to the seashore. 总结：when引导的时间状语从句，其谓语动词可以是延续的，也可以是瞬间的，可用于主句和从句动作同时发生或从句动作先于主句动作。 2. We were having a class_ (突然有人闯了进来). We were about to set off _ (这时开始下雨了) 总结：相当于and at this / that time。意思为 “正在/刚要这/那时（突然）”,When the film ended,When I lived there,when someone broke in,when it began to rain.,3. It was foolish of you to take a taxi _ you could easily walk there in five minutes How can he get good grades _ he wont study? 总结：“既然”，相当于since; considering that。,常用于下列句式： be doing be about to do sth. be on the point of doing,+ when,when,when,PRACTICE,1. We were swimming in the lake _ suddenly the storm started. (北京春) A. when B. while C. until D. before 2. He was about to tell me the secret _ someone patted him on the shoulder. (上海) A. as B. until C. while D. when 3. He transplanted the little tree to the garden _ it was the best time for it. (上海) A. where B. when C. that D. until 4. Did Jack come back early last night? (福建) Yes. It was not yet eight oclock _ he arrived home. A. Before B. when C. that D. until,A,D,B,B,1. Please dont talk so loud while others are working. 2. While I accept the problem is difficult, I dont think I wont work it out. 3. Some people waste food while others havent enough.,虽然,而/却,While,当,猜测词义，as用法小结,As I left the house, I forgot the key. 2. As I get older, I get more optimistic. 3. He hurried home, looking behind as he went. 4. As the weather is so bad, we have to stay home. 5. You can do it as you like. 6. Old as he is, he is still energetic. 7. He speaks English as fluently as a native speaker.,当,随着,一边,由于,像/按照,尽管,像一样,Judge the meanings of “as”.,as用法小结,1.引导时间状语从句：强调同时发生或紧接着 发生，动作无先后。 当时候 一边一边 随着 2.引导原因状语从句：由于 3.引导方式状语从句：像，如 4.引导让步状语从句：虽然 5.引导比较状语从句：asas和一样 6.引导定语从句：如，像 7.介词：作为,连接词when, while, as的用法区别,1. When/While he was eating his lunch, the doorbell rang. When I stopped my car, a man came up to me. 小结：while引导的时间状语从句的谓语动词必须是可延续的，而when引导的时间状语从句的谓语动词是可延续的，也可以是表短暂性动作的动词。 2. When you have finished your work, you may have a rest. 小结：从句动作发生在主句动作之前时，只能用when引导这个从句，不可用as或while。 3. When/While/As I was walking down the street, I came across an old friend of mine. 小结：如果主句表示的是短暂动作，而从句用延续性动作的进行时态表示在一段时间内正在进行的动作时，三者可互换使用。,选when？还是as比较像，选while吧！崩溃ING！,用while, when, as 填空：, _ I was walking down the street, I noticed a police car in front of the store. _ John arrived, I was cooking lunch. _ he grew older, he lost interest in everything except gardening. How can he get good grades _ he wont study? (他不好好学习却能得高分，他是怎么做到的？When表示虽然) I was wandering through the street_ I caught sight of a tailors shop. _ the grandparents love the children, they are strict with them.,When/While/As,When,As,when,when,while,till, until和notuntil,观察句子，找出用法。 You may stay here until the rain stops. I didnt leave until he came. Until you told me I have no idea of it. It was not until he came that I left. Not until you told me did I have any idea of it. 用于肯定句：主句谓语动词必须是_, 意为“某动作一直延续到某时间点才停止”。 用于否定句：主句谓语动词必须是_, 意为“某动作直到某时间才开始”。 _可以用于句首, 而_不可以。 在强调句型中, not until 两词不可分开； not until放在句首时，_要倒装。,延续性动词,非延续性动词,until,till,主句,before用法小结 1. We had sailed four days and four nights before we saw land. 2. We hadnt run a mile before he felt tired. 3. Please write it down before you forget it. 4. Before I could get in a word, he had measured me.,才,还没有/不到就,趁（还未）,还没来得及,注意：before从句中谓语不用否定式。 Before they reached the station, the train had gone.,含有before的句型结构： 1. It will be / was段时间before“过多久才” It_(还要过两年) he leaves the country. It _(过了很长一段时间) before he got to sleep again. 2. It will be / was + not段时间before “不多久就” It wasnt two years before he left the country. It was not long before he came back.,will be two years before,was a long time,PRACTICE,1. He made a mistake, but then he corrected the situation _ it got worse. (北京) A. until B. when C. before D. as 2. Scientists say it may be five or six years _ it is possible to test this medicine on human patients. (福建) A. since B. after C. before D. when 3. Why didnt you tell him about the meeting? (四川) He rushed out of the room _ I could say a word. A. before B. until C. when D. after 4. It is almost five years _ we saw each other last time. (北京)A. before B. since C. after D. because,C,C,A,B,since,1. I have returned home four times since I came here. 2. She has been working here since he left school. 3. I have seen her twice since he lived here. 4. It is three years since the war broke out. 5. It was years since I had seen her. 译：_ 总结： since从句的谓语动词一般是_动词，主句的谓语动词是延续性或者反复发生的动作。主句时态为_, 从句时态为_。 It is +some time + since + did. It was +some time + since+ had done.,非延续性,现在完成时,一般过去时,一就,表达法表示“一就”的连词有：as soon as; the moment=the minute = the instant; immediately=directly;hardlywhen=no soonerthan等。 例如： 1. As soon as/ The moment /The minute/ Immediately he saw the bear, he climbed the tree. 他一看见熊就立刻爬上了树。 2. I had hardly sat down when he stepped in.= I had no sooner sat down than he stepped in. =Hardly had I sat down when he stepped in.= No sooner had I sat down than he stepped in. 我刚坐下，他就进来了。,时间状语从句其它引导词小结：,1. the moment, the minute, the instant, immediately, directly, instantly, hardlywhen, scarcelywhen, no soonerthan 等可引导时间状语从句，相当于as soon as的意思。 They rushed out of the room immediately they heard a loud noise. 2. 在hardlywhen, scarcelywhen, no soonerthan等引导的从句中，如果hardly或no sooner或scarcely置于句首，句子必须用部分倒装结构。 Hardly had I got home when it began to rain. = I had hardly got home when it began to rain.,3一些含有time的名词短语，如: every time, each time, next time, by the time等，以及the day, the year, the morning等，也可引导一个时间状语从句。 The day he returned home, his father was already dead. Next time you come, please bring your dictionary.,Step 3: Take a quiz,1.(陕西)_ all of them are strong candidates, only one will be chosen for the post. A. Since B. While C. If D. As 2.(福建)It was April 29, 2001 _ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony. A. that B. when C. since D. before,2011年高考题中考查的状语从句,3.(浙江) One Friday, we were packing to leave for a weekend away _ my daughter heard cries for help. A. after B. while C. since D. when 4.(江西) Please call my secretary to arrange a meeting this afternoon, or _ it is convenient to you. A. whenever B. howeve