深圳牛津8Bchapter5语法.docVIP

Chapter 5 Success Stories 语法----过去进行时 复习：现在进行时 定义 现在进行时主要用于表示目前正在进行的动作，有时也可表示现阶段在进行的动作。如： The teacher is giving us an English lesson. 老师正在给我们上英语课。 We are making preparations for the conference. 我们一直在为会议作准备。结构 现在进行时由“am / is / are + 现在分词”构成。如： He is writing on the desk. 他再课桌上写字。【说明】 动词现在分词的构成方法： (1) 一般在动词后加-ing。如：say—saying, play—playing, think—thinking, (2) 动词若以“辅音字母+e”结尾, 则去e再加-ing。如：love—loving, make—making, guide—guiding, date—dating. (3) 在以单短元音的重读闭音节结尾，且末尾只有一个辅音字母的动词后，双写最后一个辅音字母，再加-ing。如：begin—beginning, regret—regretting, plan—planning, ban — banning. (4) 在以ie结尾的动词后，改ie为y，再加-ing。如：lie—lying, die—dying, tie—tying. ? 现在进行时的应用 (1) 表示目前正在发生或进行的动作。如： They are planting trees on the mountain. 他们在山上植树。 (2) 有些非持续性动词（come, go, leave, start, arrive, die）的进行时可以表示动作即将进行或发生。如： He is leaving at 5:00. (3) 当现在进行时中有always, forever, constantly, continually修饰时，表示说话人的赞赏或厌烦的感情。如: They are always helping us. 他们总是帮助我们。 注意：表示状态、感觉、心理活动的静态动词，一般不使用进行时态。句型结构 肯定句：主语+am/is/are+doing+其他 e.g: He is doing his homework now. 否定句：主语+am/is/are+not+doing+其他 e.g: He is not doing his homework now. 一般疑问句：Am/Is/Are+主语+doing+其他？ e.g: Is he doing his homework now特殊疑问句：特殊疑问词+ am/is/are +主语+doing+其他？ e.g: What is he doing his now? 课堂练习A 一、单项选择 1. Who _____ over there now?? A. singing?? B. are sing?? C. is singing?? D. sing2. It’s eight o’clock. The students _____ an English class.?? A. have?? B. having?? C. is having D. are having3. Listen! The baby _____ in the next room.? ? A. crying?? B. cried?? C. is crying??? D. cries4. Look! The twins _____ new sweaters.?? A. are wearing?? B. wearing?? C. are wear?? D. is wearing5. Don’t talk here. Grandparents _____. A. is sleeping?? B. are sleeping?? C. sleeping?? D. sleep6. Tom is a worker. He _____ in a factory. His sisters _____ in a hospital.　　?? A. work/ work?? B. works/ work? ? C. work/ works7. Who _____ English best in your class??? A. speak?? B. speaks?? C. speaking8. Mrs. Read _____ the windows every day.?? A. is cleaning?? B.