高中英语 Unit1 Tales of the unexplained Period4 Grammar教案 牛津译林版必修2
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Unit 1 Tales of the unexplainedPeriod 4 Grammar一.【设计思想】从课文的具体语境入手理解现在完成时与现在完成进行时,并补充讲解归纳现在完成时与现在完成进行时的常见考点并练习。
二.【教学目标】By the end of this class, the students will be able to1. learn the form and usage of the present perfect tense and the present perfect continuous tense.2. know when the present perfect tense and the present perfect continuous tense is used in sentences.三.【教学重难点】1. Compare the differences between the simple past tense and the present perfect tense.2. Learn the differences between present perfect tense and present perfect continuous tense.四.【教学环节】【课堂导入】观察思考(请赏析以前课文中含有“现在完成时或现在完成进行时”的句子并将它们翻译成中文)1. (L53P23M1) Now that he has been so rude to us, I feel like we have to punishhim.2. (L2P42M1) I haven’t heard from you for weeks.3. (L10P42M1) I’ve lost 7 kg in the last two months.4. (L64P3M2) I haven’t been sleeping well since I returned home.【预习检查】Complete the following sentences with the proper tense.1)We _____ (study) English for about five years.2)They ____ (live) in the south since their daughter was born.3)I _____ (read) our article three times. It’s well written.4)The student ____ ( finish) her homework already.5)Eric ___ (go) back to his hometown today.6)The police ________( just finish) searching the area.【课堂教与学】Step1. I请用“现在完成时”完成下列句子(这些句子你们都学过)1. 19% of the teenagers say that they (已经尝试)controlling their weight.2. People (已经表现出)great interest in hisdisappearance.3. Some people in Dover also say that they (已经见过外星人)。
4. Police in America _____(加快搜索)a fifteen-year-old boy.5. Justin (已经失踪)for two weeks now.II. 请用“现在完成进行时”完成下列句子1.It (一直在下雨)since last Sunday.2. They (已经等待)you for two hours.3. Tom (一直在学)English since three years ago.4. The little girl (一直在读)the book.5. I (一直在打扫)the rooms the whole morning. Step2 . 现在完成时和现在完成进行时的构成及用法归纳C. 注意事项1、常和完成时连用的词、词组和句型有:for, since, lately, recently, before, already,ever, just, yet; in (for, during) the past few days (weeks, months), so far, up to now,till(until)now; It is the first (second) time…that…等;2、has gone (to) 去了没回,has been (to) 去过,has been (in) 去了并呆在;3、不用于进行时态的动词通常也不用于现在完成进行时,但它们可以用于现在完成时,如:be, have, like, love, know等;4、短暂性动词come, go, arrive, reach, see, hear, close, leave, begin, start, lose,buy, close, fall, join, die, get up等可以和完成时连用,但是不能和表一段时间的时间状语连用;【课堂巩固】I . 用现在完成时或现在完成进行时将下列句子翻译成英文1. 自从三年前以来我一直在自学英语。
2. 他们在这个城市已经住了10年。
3. 我一直在写一本书。
我已经写了一本书。
4. 他们一直在造一座桥。
他们造了一座桥。
5. 学生们一直在准备考试(还在进行)。
6. 学生们为考试作了准备(已经结束)。
7. 这房子已漆了一个月。
8. 这一周你一直在干什么?(不耐烦)II. 单项填空1. When I was at college I three foreign languages, but I all excepta few words of each.A. spoke; had forgottenB. spoke; have forgottenC. had spoken; had forgottenD. had spoken; have forgotten2. Now that she is out of a job, Lucy ______ going b ack to school, but she hasn’t decided yet.A had consideredB has been consideringC consideredD is going to consider3. My dictionary ______ . I have looked for it everywhere but still ______ it.A. has lost; don't findB. is missing; don't findC. has lost; haven't foundD. is missing; haven't found4.—I'm sorry to keep you waiting. —Oh, not at all. I ______ here only a few minutes.A. have beenB. had beenC. wasD. will be5.─ the sports meet might be put off. ─ Yes, it all depends on the weather.A. I've been toldB. I've toldC. I'm toldD.I told6. You don't need to describe her. I her several times.A. had metB. have metC. metD. meet7. — my glasses? —Yes, I saw them on your bed a minute ago.A. Do you seeB. Had you seenC. Would you seeD. Have you seen8. I won't tell the student the answer to the math problem until he ______ on itfor more than an hour.A. has been workingB. will have workedC. will have been workingD. had worked9.-Hi, Tracy, you look tired. -I am tired. I ______ the living room all day.A. paintedB. had paintedC. have been paintingD. have painted10. The price ______ ,but I doubt whether it will remain so.A. went downB. will go downC. has gone downD. was goingdown11. All the preparations for the task ______ ,and we're ready to start.A. completedB. completeC. had been completedD. have been completed12. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she _____ English for a year.A. studiesB. studiedC. is studyingD. has been studying13. A new cinema ______ here. They hope to finish it next month.A. will be builtB. is builtC. has been builtD. is being built14. John and I _ friends for eight years. We first got to know each otherat a Christmas party. But we _ each other a couple of times before that.A. had been; have seenB. have been; have seenC. had been; had seenD. have been; had seen15.-Do you know our town at all? -No, this is the first time I here.A. wasB. have beenC. cameD. am coming16. In the last few years thousands of films ______ all over the world.A. have producedB. have been producedC. are producingD. are being produced17. Tom ______ in the library every night over the last three months.A. worksB. workedC. has been workingD. had been working【知识小结】学生根据前面课文中出现的语境来总结概括现在完成时和现在完成进行时的用法,老师做适当的点拨补充;并针对平时练习中学生的易错点加以训练。