发布时间 : 星期一 文章江苏省高中英语 Unit1 Tales of the unexplained Period4 Grammar教案 牛津译林版必修2更新完毕开始阅读
Unit 1 Tales of the unexplained
Period 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 to
1. 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 punish him.
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 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. 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 A. 构成形式（以do为例） 现在完成时 主动形式 被动形式 B. 主要用法 主要用法 现 在 完 成 时 1、表示一个过去发生并结束的动作，但是对现在有影响； 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； 3、表示刚刚完成的动作或反复进行的动作； 典型例句 Li Ming has just turned off the light. 李明刚刚把灯关上。（说明现在灯关上了） He has lived here for 30 years. 他住在这儿三十年了。（现在还住在这儿） Police have just finished searching the area. 警察刚刚搜查过这个地区。 have (has) done have (has) been done 主动形式 被动形式 现在完成进行时 have (has) been doing 无 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 行 时 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； 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； 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。 You look tired. What have you been doing? 你看起来累了，一直干什么来着？ 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 except a few words of each. A. spoke; had forgotten
B. spoke; have forgotten D. had spoken; have forgotten
C. had spoken; had forgotten decided yet. A had considered C considered
B has been considering
D is going to consider
B. is missing; don't find D. is missing; haven't found
2. Now that she is out of a job, Lucy ______ going back to school, but she hasn’t
3. My dictionary ______ . I have looked for it everywhere but still ______ it. A. has lost; don't find C. has lost; haven't found few minutes. A. have been weather.
A. I've been told told
6. You don't need to describe her. I her several times. A. had met meet
7. — my glasses? A. Do you see you seen
8. I won't tell the student the answer to the math problem until he ______ on it for more than an hour.
A. has been working B. will have worked C. will have been working D. had worked 9.－Hi, Tracy, you look tired. all day. A. painted painted
10. The price ______ ,but I doubt whether it will remain so. A. went down B. will go down
C. has gone down D. was going
B. had painted
C. have been painting D.
have
－I am tired. I ______ the living room
—Yes, I saw them on your bed a minute ago.
C. Would you see
D.
Have
B. Had you seen
B. have met
C. met
D.
B. I've told
C. I'm told
D.I
B. had been
C. was
D. will be
5.─ the sports meet might be put off. ─ Yes, it all depends on the
4.—I'm sorry to keep you waiting. —Oh, not at all. I ______ here only a