1、选修八 Unit5 Meeting your ancestorsPeriod3 Grammar【课标解读目标】：学习并掌握现在完成进行时。【教学目标】：1. 扎实掌握现在完成进行时的用法，提高自己的语言运用能力。2. 自主学习，合作探究；掌握分析句子成分与概括框架知识的方法。3. 激情投入，运用所学词汇表达情感并激情投入，体验学习的快乐。【重点和难点】：八个重点单词及短语的用法。【教学过程】【巧设导语 激发兴趣】一、 现在完成进行时的用法1. 现在完成进行时的构成：have/has been doing2. 现在完成进行时的用法表示动作从过去某一时刻开始，一直持续到现在并有可能延续下去，常与f
2、or, since引出的时间状语连用。如：I have been teaching English for almost twenty years. 我教英语将近有20年了。They have been living here for ten years. 他们住在这里10年了。表示动作刚刚结束。如：I have been studying for about two hours. 我学习大概两个小时了。表示动作的反复。如：They have been discussing the matter several times this year. 他们今年已经数次讨论那件事了。表示某种感情色彩。
3、如：I have been wanting to see you for a long time. 我想要见你已经好久了。You have been deceiving me. 你一直在骗我。二、 现在完成进行时与现在完成时的区别用法例句区别一现在完成进行时强调延续性I have been thinking it over.我一直在思考这件事。现在完成时强调过去某个动作对现在造成的影响或产生的结果I have thought it over. 我已经考虑过这件事情了。区别二现在完成进行时表示动作的反复Have you been meeting him recently? 你最近经常见他吗？现在
4、完成时不表示动作的反复Have you met him recently? 你最近见过他吗？区别三现在完成进行时常带有感情色彩I have been waiting for you for three hours. 我已经等你三个小时了。（暗含不满的语气）现在完成时不带有感情色彩I have been waited for you for three hours. 我等你三个小时了。（陈述一个事实）真题研讨：考点指南1：从动作重复性的角度考查现在完成进行时的基本用法。典例1. （2011北京高考）Tom _ in the library every night over the last th
5、ree months.A. works B. worked C. has been working D. had been working答案研讨：C 考察时态。由句中的时间状语“over the last three months”可知应用现在完成进行时。考点指南2：从动作延续性的角度考查现在完成进行时与现在完成时的区别。典例2. （2010 湖南高考）Im tired out. I _ all afternoon and I dont seem to have finished anything.A. shopped B. have shopped C. had shopped D. ha
6、ve been shopping答案研讨：D 考察时态。此处用现在完成进行时，强调动作从过去某一时刻开始，一直持续到现在，且现在仍在进行。【提出问题 合作探究】1. 每个知识点的框架用法。2. 标注出来的难例句或不明白的地方。3. 完成下列跟踪练习题：1. -Hi, Tracy, you look tired.-I am tired. I _ the living room all day. A. painted B. had painted C. have been painting D. have painted2. Now that she is out of job, Lucy _ g
7、oing back to school, but she hasnt decided yet. A. had considered B. has been considering C. considered D. is going to consider3. The crazy fans _ patiently for two hours, and they would wait till the movie star arrived. A. were waiting B. had been waitingC. had waited D. would wait4. They _ on the
8、program for almost one week before I joined them, and now we _ it as no good results have come out. A. had been working; are still working B. had worked; were still working C. have been working; have worked D. have worked; are still working5. -What would you do if it _ tomorrow? - We have to carry i
9、t on, since weve got everything ready. A. rain B. rains C. will rain D. is raining6. The coffee is wonderful! It doesnt taste like anything I _ before. A. was having B. have C. have ever had D. had ever had7. He _ more than 5000 English words when he entered the university at the age of 15. A. has l
10、earned B. would have learned C. learned D. had learned8. By the time Jane gets home, her aunt _ for London to attend a meeting. A. will leave B. leaves C. will have leave D. left9. -Are you still busy? -Yes, I _ my work, and it wont take long. A. just B. am just finishing C. have just finished D. am just going to finish10. When the old man _ to walk back to his house, the sun _ itself behind the mountain. A. started; had already hidden B. had started; had already hidden C. had started; was hiding D. was starting; hid参考答案：1-5 CBBAB 6-10 CDCBA【反馈矫正 提炼巩固】讨论后还有那些不懂的地方：
