高中英語 Unit1《Tales of the unexplained》Grammar and usage教案1 牛津譯林版必修2

1、Unit 1 Tales of unexplained Grammar and usageAims: . Learn the basic forms of present perfect tense and present perfect continuous tense. . Learn to use them in different situations. . Learn state verbs and action verbs in different situations. Preparing . Words and expressions:latelytreasure . Anal

2、yze the following sentences and review present perfect tenseI have never seen pandas .We have not seen him for a long time . We have not seen him since 2000.( already ever for just lately never recently since yet so far ) . Translation:你去過北京嗎？你工作已完成了嗎？她回來已一周了。在過去的十年里，這里發(fā)生了巨大的變化。這是我第一次來這里。這是我所看過的最好的電

3、影。 Possible answers:Have you ever been to Beijing?Have you finished your work yet?She has been back for a week. / It is /has been a week since she came back.Great changes have taken place here in the past / last 10 years.This is the first time (that) I have been here.This is the best film that I hav

4、e ever seen. Learning Period . Basic formspresent perfect tense : have / has donepresent perfect continuous tense : have / has been doing . Present perfect tenseUsageTo talk about things that happened in the recent past, but are connected to the present.The disappearance of Justin has made Kelly ver

5、y unhappy.To talk about something that started in the past, and is still happening now.We have not seen him since last Friday night.When the exact time of an action is not clear or important.The boy has already come home.I havent seen since 2002.(for + a period of time) / (since + a point in time) T

6、o talk about actions that we completed only a short time ago.The police have just finished searching the area.For repeated actions.Some villagers say that they have seen UFOs many times. . Present perfect continuous tenseUsage To talk about actions that started in the past, and are still continuing.

7、 I havent been sleeping well since I returned home.2. To talk about actions that have just finished but are still connected to the present in some ways. -Have you been waiting long?-Yes. I have been waiting for an hour. . Exercises on p.9 . Homework: Workbook p.88 C1 Period . Revision: present perfe

8、ct tense and present perfect continuous tense . Different usages of them1. We use the present perfect tense to talk about an action completed in the recent past, and present perfect continuous tense for an action that started in the past and is still happening.Li jia has read a book about Stonehenge

9、.(She finished reading the book.)Li jia has been reading a book about Stonehenge.(She is still reading the book.)We use the present perfect tense for repeated actions, and present perfect continuous tense for non-stop actions.I have visited Egypt twice this month.I have been touring Egypt for two th

10、is month.We use the present perfect tense to ask questions beginning with how many /much, and present perfect continuous tense to ask questions beginning with how longHow many times have you swum in the lake?How long have you been swimming in the lake? 4. We can use either a state verb or an action

11、verb with the present perfect tense, but we usually can only use an action verb with the present perfect continuous tense for non-stop actions. I have had this camera for 5 years. (state verb)I have taken photos of UFOs with this camera. (action verb)I have been taking photos of UFOs with this camera. (action verb)5. We use the present perfect tense,