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1、UnitUnit 1 1 TalesTales ofof thethe unexplainedunexplainedPeriodPeriod 4 4 GrammarGrammar一一 【设计思想设计思想】 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。 二二 【教学目标教学目标】ByBy thethe endend ofof thisthis class,class, thethe studentsstudents willwill bebe ableable toto 1. learn the form and usage o
2、f 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. 三三 【教学重难点教学重难点】1. Compare the differences between the simple past tense and the present perfect tense. 2. Learn the differences
3、between present perfect tense and present perfect continuous tense. 四四 【教学环节教学环节】 【课堂导入课堂导入】观察思考（请赏析以前课文中含有观察思考（请赏析以前课文中含有“现在完成时或现在完成进行时现在完成时或现在完成进行时”的句子的句子 并将它们翻译成中文）并将它们翻译成中文） 1. (L53P23M1) Now that he hashas beenbeen so rude to us, I feel like we have to punish him.2. (L2P42M1) I haventhavent hea
4、rdheard from you for weeks. 3. (L10P42M1) IveIve lostlost 7 kg in the last two months. 4. (L64P3M2) I haventhavent beenbeen sleepingsleeping well since I returned home.【预习检查预习检查】Complete the following sentences with the proper tense.1)We _ (study) English for about five years. 2)They _ (live) in the
5、 south since their daughter was born. 3)I _ (read) our article three times. Its 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.【课堂教与学课堂教与学】Step1.Step1. I I 请用请用“现在完成时现在完成时”完成下列句子完成下列句子（这些句子你们都学过）
6、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 his disappearance.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. IIII. . 请用请用“现在完成进行时现在完成进行时”完成下列句子完成
7、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.Step2Step2 . . 现在完成时和现在完成进行时的构成及用法归纳现在完成时和现在完成进行时的构成及用法归纳A.A. 构成形式（以构成形式（以 dodo 为例）为例）现在完成时现在完成进行时主动形式have (has) d
8、one主动形式have (has) been doing被动形式have (has) been done被动形式无B.B. 主要用法主要用法主要用法典型例句1、表示一个过去发生并结束的动作，但是对现在有影响；Li Ming has just turned off the light. 李明刚刚把灯关上。 （说明现在灯关上了）2、表示过去已经开始，持续到现在，而且还可能继续下去的动作或状态；He has lived here for 30 years. 他住在这儿三十年了。 （现在还住在这儿） 现在完成时3、表示刚刚完成的动作或反复进行的动作；Police have just finished
9、searching the area. 警察刚刚搜查过这个地区。Some villagers say that they have seen UFOs many times. 有些村民说他们多次见过不明飞行物。现在完成进1、表示动作从过去某一时间开始一直延续到现在，现在这个动作仍在进行；Mr. Smith has been living in London since 1995. 史密斯先生自 1995 年以来一直住在伦敦。行时2、表示动作从过去某一时间开始一直延续到现在，刚刚结束，并对现在有影响；You look tired. What have you been doing? 你看起来累了
10、，一直干什么来着？C.C. 注意事项注意事项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) timethat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
11、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； 【课堂巩固课堂巩固】I 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
12、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.II. 单项填空单项填空1. When I was at college I three foreign languages, but I all except a few words of each. A. spoke; had forgotten B. spoke; have forgottenC. had spoken; had forgotten
13、 D. had spoken; have forgotten2. Now that she is out of a job, Lucy _ going back to school, but she hasnt decided yet.A had consideredB has been considering C consideredD is going to consider3. My dictionary _ . I have looked for it everywhere but still _ it. A. has lost; dont find B. is missing; do
14、nt find C. has lost; havent found D. is missing; havent found 4.Im sorry to keep you waiting. Oh, not at all. I _ here only a few minutes.A. have been B. had beenC. was D. will be5. the sports meet might be put off. Yes, it all depends on the weather.A. Ive been toldB. Ive toldC. Im told D.I told6.
15、You dont need to describe her. I her several times.A. had met B. have met C. met D. meet7. my glasses? Yes, I saw them on your bed a minute ago. A. Do you see B. Had you seenC. Would you seeD. Have you seen8. I wont tell the student the answer to the math problem until he _ on it for more than an hour. A. has be
