1、Grammar and usage,Present Perfect Tense 现在完成时& Present Perfect Continuous Tense 现在完成进行时,Part A,Present perfect tense,Form: have / has + done,Present perfect tense,The boy is very happy. The boy _ (catch)a bird.,Connection with the past: The boy caught a bird.,Connection with the present: The boy is
2、happy.,Present perfect tense,The boy is very happy. The boy _ (catch)a bird.,has caught,Connection with the past: The boy caught a bird.,Connection with the present: The boy is happy.,Present perfect tense,Look, the window is open. Eric opened the window just now.,Eric _ _(already open) the window.,
3、Connection with the past: Eric opened the window.,has already,opened,Connection with the present: The window is open.,Summary ,We use the present perfect tense to talk about things that happened in the recent past, but are connected to the present.,Present perfect tense,Daniel _(live)in Beijing sinc
4、e he came to China.,has lived,Connection with the past: Daniel came to China.,Connection with the present: Daniel is living in China.,Summary ,past,now,future,came,has lived,We use the present perfect tense to talk about something that started in the past, and is still happening now.组卷网,Present perf
5、ect tense,The boys are tired. They _ (just play)a ball game.组卷网,have just played,Connection with the present: The boys are tired.,Connection with the past: The boys played a ball game.,Summary ,We use the present perfect tense to talk about actions that were completed only a short time ago.,Present
6、perfect tense,I went to Egypt in 1986.,I _ (be) to Egypt twice.,I went to Egypt in 2004.,have been,Summary ,We can also use the present perfect tense for repeated actions.,Present perfect tense,_ it ever _(snow)in Hong Kong?,Has,snowed,No, it _ never _ (snow) there.,has,snowed,Summary ,We use the pr
7、esent perfect tense when the exact time of an action is not clear or important. We use it with time expressions such as: already, ever, for, just, lately, never, recently, since, yet.,Notes:,1.We use already for affirmative statements and yet for negative statements and interrogative sentences.,2. W
8、e use for + a period of time and since + a point of time.,Notes:,3. Structures connected with the present perfect tense:,It is(has been)+ a period of time + since- clause.,This(That/It)is the first(second)time + that-clause (present perfect tense).,This (That/It) is the only + that-clause (present p
9、erfect tense).,This(That/It)is the best / finest / most interesting + that-clause.,Exercise,My friend Jack has just sent me an e-mail, telling me about his travels around the world. He _(just be)to Qomolangma Base Camp and _ (see) a Yeti there. He is still very excited about it. He _ (visit) the Gre
10、at Pyramid in Egypt too. He says that he _(love) Egypt but he _ (not visit)all the pyramids yet.,has just been,saw,has visited,loves,hasnt visited,Exercise,He _ (swim) in Loch Ness, but luckily he _ (never meet)the Loch Ness Monster! He _(dive) in the Indian Ocean many times looking for treasure. Al
11、though he _(find) many sunken ships, he _ (not find)any treasure._(11)he _ (be)to the Great Wall before? Im not sure but I have!,has swum,has never met,has dived,has found,hasnt found,Has,been,Part B,Present Perfect Continuous Tense,Form: have / has + been + doing,The boy started having dinner five
12、minutes ago. He is still having dinner now.,The boy _ (have)dinner since five minutes ago.,has been having,Present perfect continuous tense,The man started working in the field half an hour ago. He is still working now.,The man _ (work)in the field for half an hour.,has been working,Present perfect
13、continuous tense,Summary ,past,present,I returned home.,Im still not sleeping well.,not being able to sleep well,I have not been sleeping well since I returned home.,1. We use the present perfect continuous tense to talk about actions that started in the past and are still continuing.,Summary ,We al
14、so use the present perfect continuous tense to talk about actions that have just finished but are still connected to the present in some way.,Summary ,past,present,Mavis started waiting for Kelly.,one hour ago,Kelly arrives.,Kelly: Sorry Im late. Have you been waiting long? Mavis: Yes. Ive been wait
15、ing for an hour.,1. We use the present perfect tense to talk about an action completed in the recent past, and the present perfect continuous tense for an action that started in the past and is still happening.,Comparison,Comparison,past & past,now,future,past,PPT:,have done,past & past,now,future,p
16、ast,PPCT:,have been doing,Comparison,Li Jia _ (read)a book about Stonehenge. (She finished reading the book.),has read,Li Jia _(read)a book about Stonehenge. (She is still reading the book.),has been reading,2. We can use the present perfect tense for repeated actions, and the present perfect contin
17、uous tense for non-stop actions.,Comparison,Comparison,I _ Egypt many times. (repeated actions),have visited,The man _ (skate)this morning. (non-stop action),has been skating,3. We usually use the present perfect tense to ask questions beginning with how many or how much, and the present perfect con
18、tinuous tense to ask questions beginning with how long.,Comparison,Comparison,How long have you been swimming in the lake?,How many times have you swum in the lake?,4. We can use either a state verb or an action verb with the present perfect tense. we usually can only use an Action verb with the pre
19、sent perfect continuous tense.,Comparison,She has had the pen for 2 years.,Comparison,state verb,She has written many compositions with this pen.,action verb,She has been writing compositions with this pen.,action verb,Comparison,I have never visited America.,I have already been to America.,I have n
20、ever been visiting America.,5. We use the present perfect tense, not the present perfect continuous tense, with the words like never, yet, already and ever.,Exercise,1. Although he has lived with us for years, he _ us much impression.,A. hadnt left B. didnt leave C. doesnt leave D. hasnt left,Exerci
21、se,1. Although he has lived with us for years, he _ us much impression.,A. hadnt left B. didnt leave C. doesnt leave D. hasnt left,Exercise,2. How can you possibly miss the news? It _ on TV all day long.,A. has been B. had been C. was D. will be,Exercise,2. How can you possibly miss the news? It _ o
22、n TV all day long.,A. has been B. had been C. was D. will be,Exercise,3. _ David and Vicky _ married?,A. How long were, being B. How long, have C. How long have, been D. How long did, get,Exercise,3. _ David and Vicky _ married?,A. How long were, being B. How long, have C. How long have, been D. How
23、 long did, get,Exercise,4. The old couple have been married for 40 years and never once _ with each other.,A. they had quarreled B. they have quarreled C. have they quarreled D. had they quarreled,Exercise,4. The old couple have been married for 40 years and never once _ with each other.,A. they had
24、 quarreled B. they have quarreled C. have they quarreled D. had they quarreled,Exercise,5. How long _ at the job?,A. were you employed B. have you been employed C. had you been employed D. will you been employed, Since 1990.,Exercise,5. How long _ at the job?,A. were you employed B. have you been em
25、ployed C. had you been employed D. will you been employed, Since 1990.,Exercise,6. I wonder why Jenny _ us recently. We should have heard from her by now.,A. hasnt written B. doesnt write C. wont write D. hadnt written,Exercise,6. I wonder why Jenny _ us recently. We should have heard from her by now.,A. hasnt written B. doesnt write C. wont write D. hadnt written,
