现在完成时复习教案 公开课

The Present Perfect Tense

(Glass begins: Stand up. Good morning, boys and girls. Good morning, Miss Liu. Sit down, please. Thank you. )

T: First, let me introduce myself. My name is .... You can call me Miss Liu. I come from .... Middle School. I am glad to be here and study with you. Would you like to listen to me?

Ss: …

T: Thank you.

Oh, the floor is dirty. Who would like to clean the floor?

You, please. Thank you.

(1 student cleans the floor.)

T: What’s she doing now? Who can tell me? Hands up.

S: She is cleaning the floor.

T: (to the student) Thank you.

T: What did she do just now?

S: She cleaned the floor just now. (Write on the Bb)

T: How is the floor now? (Is it dirty?)

S: It’s clean. (Write “The floor is clean now” on the Bb)

T: Well, she cleaned the floor just now. So, the floor is clean now. What do the two sentences mean? Use one sentence to express the same meaning, please.

S: She has cleaned the floor. (Write on the Bb).

T: Change “she” into “he”, please.

S:

T: I/ we / they…

S:

T: Very good! Look: What tense do we use?

S: The Present Perfect Tense.

T: Yes, good. Today we’ll go over The Present Perfect Tense. It’s form is :

S: have/ has + V- p.p. (Write on the Bb)

T: Do you know how to change the verbs into past participle?

S: (Summarize the rules)

T: Great. (Show the P.P. of the regular verbs) Look,

Rule 1: + ed. Rule 2: + d. Rule 3: double the last letter + ed. Rule 4: change “y”into “i”, + ed.

But some verbs are special. For example: (Show the P.P. of the irregular verbs)

Put--- put --- put

It’s past tense and past participle are both “put”.

How about “r ead”: this line, one by one.

“b uy”:

Next, answer together, please.

Well done. Thank you. Here are so many irregular verbs, they are very important. Try your best to remember them.

T: (Point to the Bb, write 1) Now please look at the Bb. This is the first usage of the tense. We often use some key words in the sentence. Some examples: already, just, never…. Anymore? Do you know? Who can tell us?

S: already, yet, ever, never, just, before, once/twice/three times… etc.

T: Excellent. (Show the expressions)

Read together, please. “already”, one, two, go.

Good, thank you.

Look at the sentences, who would like to read them, please?

I have visited France.

ever

I have just visited France.

never

T: Look, where is “just”?

S: It’s before the P.P.

T: Great! How about “ever/never”?

S: …

Good, next, we often use “already” like this:

I have already visited France. (Where is already?)

S: …

T: But sometimes we use “already” like this:

I have visited France already.

Where is it?

S: …

T: Now do you know how to use already?

S: “already” can be used before the P.P., or at the end of the sentence.

T: Great. Then look at the next ones:

before.

I have visited France once.

twice.

three times.

T: Where is “before”?

S: …

T: Where are once/twice/three times?

S: They are at the end of the sentence.

T: Very good. How about yet? Do you know? Look at the sentence:

I have already visited France.

Change the sentence into a negative sentence, please.

S: I have n’t visited France yet.

T: Yes. Look, “already” is changed into “yet”. Where is “yet”?

S: …

T: Now, change the sentence into a general question.

S: Have you visited France yet?

T: Where is “yet”?

S: …

T: Good. Answer the question together: Yes, …

S: Yes, I have/ No, I haven’t.

T: Wonderful. Thank you. Next, please change the next sentence into a negative sentence.

Tom has ever read the book.

S: Tom has never read the book.

T: Can we say: “Tom has n’t ever read the book.”?

Ss: No.

T: Yes, We should use “never”, we don’t use “not ever”.

Then, let’s do some exercise.

Fill in the blanks.

1.A: _____ you _____ (see) the film?

B: Yes, I _____ already _____ (see) it .

A: When _____ you _____ (see)it?

B: I _____ (see)it last week.

2.A: _____ he _____ (do) his homework?

B: No, he __________ (not do) it yet. He __________(do)it now. He __________(finish) it in a minute.

T: Well done. Boys and girls, do you know where I was born?

S: No.

T: Well, Let me tell you. I was born in Zizhong. But I moved to Neijiang two years ago. I began to live in Neijiang two years ago. (Write on the Bb) And I still live in Neijiang now. (Write on the Bb)

How long have I lived in Neijiang?

S: …

T: Yes. I have lived in Neijiang for two years. (Write on the Bb)

According to the sentence, when the action happened in the past, and it lasts till today, we should use The Present Perfect Tense.

T: This is the second usage. (Write on the Bb)

In the sentence, we use “for two years”. “Two years” is a period of time. So we say “for two years”. In another way, we can use “since __________”. A nswer together. Ss: Since two years ago

T: Great. We can also say: since________. Well, this year is 2008, two years ago is … So we can say: Since _____?

S: since 2006.

T: Good. I moved here two years ago. So we can also say: since_________.

S: Since I moved here.

T: Great! When we express a period of time, we can use “for + a period of time” or “since + a time in the past”, it may be a word, a phrase or a sentence with simple past tense. (Show the …)

T: Another example: I am an English teacher. I began to teach English when I left school. So I have taught English for six years: We can also say: I have taught English since_________.

S: since six years ago/since 2002/since I left school.

T: Excellent. How about: for three hours?

S: Since three hours ago

T: Since five days ago?

S: For five days.

T: Since seven weeks ago?

S: For seven weeks.

T: Well done. Now please fill in the blanks with for or since. This line, answer me one by one.

1. We haven’t seen each other ______ a long time.

2. His father has been in the Party ______ 10 years ago.

3. The film has been on ______ 20 minutes.

4. The Greens have worked here ______ they came to China.

5. Tony’s grandmother has been dead ______2004.

T: There are some other expressions. Read together, “so far”, one, two, go.

so far, till today, recently, these years, all one’s life, in the last/past … years, etc. T: Good. Thank you. When we see them in the sentences, we often use The Present Perfect Tense.

Now, do the exercises:

1. We _______________ (learn) 5000 words so far.

2. The farmer_________________ (plant) hundreds of trees in the last 20 years. T: Look at the sentence:

My dog has died.

Right or wrong? (Right)

(S: Wrong. T: I’m afraid not. It means: “The dog is not alive any more”. So it’s right.)

Another one:

My dog has died for a week.

Right?

S: No.

T: who can tell me the right answer?

S: …

T: “For a week” is a period of time. When we use a period of time in the sentence, the verb in the sentence must be continuous. So we should change it into “be dead”. (Show die --- be dead)

Next: I have borrowed the book for six days.

Right or wrong? Who knows? How to correct it?

S: I have kept the book for six days.

T: Great! Th e verb “borrow” can’t last. We should use “keep”. (Show “borrow --- keep”)

T: Another one: She has bought the sweater since 2005.

Who can do it?

S: She has had the sweater since 2005.

T: Very good. Thank you. We can’t use “buy” here, we should use “have”. (Show “buy --- have”)

Are you clear?

T: “leave” --- how to change it? :…

S: be away (from)

T: How about: “come---”? Do you know?

S: be here/in

T: Another one: “join -----”

S: be in /be a member of

T: Yes, excellent. Look! Here are many this kind of expressions. Write them down, please.

die --- be dead make friends --- be friends

leave --- be away (from) fall asleep --- be asleep

begin/ start--- be on borrow --- keep

open--- be open buy --- have

close--- be closed catch a cold --- have a cold

join --- be in /be a member of

come/ go/ arrive/ get/ reach--- be here/be in

T: Find out the mistakes, underline and correct them.

1.My classmates have bought the gifts for two days.

2.He has borrowed these books for a week.

3.They have left for half an hour.

4.The meeting has started for several minutes.

5.How long has he caught a cold?

6.We have come here since 6 o’clock.

7.The TV play has begun for ten minutes.

8.My brother has joined the army for three years.

9.The baby has fallen asleep since one o’clock.

10.I opened the door three hours ago, the door has opened for three hours.

T: Well done, you are great. Let’s look at the sentence:

The dog has been dead for a week.

Another way, we can say it like this:

It is a week since the dog died.

Pay attention: Here we use “died”, “since the dog died”, “since” add a sentence with simple past tense.

Now change the next sentence in the same way: Answer together, please.

I have kept the book for six days.

S: It is six days since I borrowed the book.

T: One more sentence:

They have been away for half an hour.

S: It is half an hour since they left.

T: Look at the 3 sentences, (Show the 3 sentences) the form of the sentences is:

It is + a period of time + since + a sentence with simple past tense.

Now, use the form to change the sentences, please.

1.My brother has been in the army for three years.

2.The meeting has been on for several minutes.

T: You did very good job.

Show the expressions:

have/ has gone to

have/ has been to

have/ has been in

T: I have told you I was born in Zizhong. Zizhong is beautiful. Would you like to visit Zizhong? Who would like to go to zizhong? Come here, please.

S: …

T: Here is Neijiang. Now we are in Neijiang. Look, Zizhong is there. Now, please go to Zizhong. Stop! (When S1 on the way)

T: Where is he?

S: He is on the way to Zizhong.

T: Is he here?

S: No.

T: He isn’t here. He has gone to Zizhong.

T: Go on, please. Stop! You are in Zizhong now. You can visit Zizhong now. (When S1 get to Zizhong)

Where is he now?

S: He is in Zizhong.

T: Is he here?

S: No.

T: Well, he is not here. He has gone to Zizhong.

(S: He has been in Zizhong. T: Pay attention. He went to Zizhong just now, yes? Is he back? S: No. T: Is he here? S: No. T: well, he is not back. He is not here. He has gone to Zizhong.)

Come back to Neijiang , please. Stop! (When on the way) Where is he now?

S: He is on the way back to Neijiang.

T: Is he here?

S: NO.

T: So we can also say: He has gone to Zizhong. (Write “has gone to” on the Bb)

T: Come here, please. Look, he is back now. So we can say: He has been to Zizhong. (Write “has been to” on the Bb)

T: (Ask the student) Excuse me. When did you come to the big classroom?

S: Half an hour ago. (Look at the watch.)

T: (Ask the Ss): How long has he been in the big classroom?

Ss: …

T: Oh, you have been in the big classroom for half an hour. (Write “have been in” on the Bb)

Because “for half an hour” is a period of time, we should use “have been in” Are you clear? (to the Student) Go back to your seat. Thank you.

Pay attention: “have/has gone to” means: He isn’t here. Maybe he is on the way there, maybe he is there, maybe he is on the way back.

“have/has been to” means: He is back now. he went there in the past, and he knows something about it.

“have/has been in” means: He stays here till now.

Next, do the exercise, please.

Fill in the blanks with “have gone to/have been to/have been in”.

1.A: Where’s Jim, Li Lei?

B: He ____________the school library.

2.The twins ___________China for three years.

3. We ___________the Great Wall twice. It’s very beautiful.

4. My sister _____ never ________ a foreign country.

5. A: May I speak to Frank?

B: Sorry, he _______________ the supermarket.

T: Great, finally, read the passage, and fill in the blanks. Write down the answers on your paper.

Mike is an Australian boy. He stays in Beijing now, because his parents ________ (work) in China. He ________ (be) in China for only a few months. Mike ________ (not see) snow before. He thinks he will have his first “White Christmas” in his life. Mike likes to collect stamps. He ________ (collect) a lot of Chinese stamps since he ________ (come) to China.

Mike ________ (study) Chinese now. The Chinese is difficult for him, but he studies hard. He ________ (learn) about five hundred Chinese words so far. And he can write a little Chinese now.

Mike is learning to skate on real ice. He ________ (have) a lot of falls, but the falls make him ________ (learn) faster.

Mike said, “ I enjoy ________ (live) in China, and I will be able to learn a lot in

China.

Let’s check the answers.

Well done, boys and girls. That’s all for today. Thank you. Goodbye.

板书：

The Present Perfect Tense

Form: have/ has + V- p.p.

1. She cleaned the floor just now. ↘ = She has cleaned the floor.

The floor is clean now. ↗

2. I began to live in Neijiang two years ago. ↘ = I have lived in Neijiang for 2 years.

I still live in Neijiang now. ↗

3. have/ has gone to

have/ has been to

have/ has been in

Exercises:

The Present Perfect Tense

Ⅰ. Fill in the blanks.

1.A: __________ you __________ (see) the film?

B: Yes, I__________ already__________ (see) it.

A: When __________ you __________ (see) it?

B: I __________ (see) it last week.

2.A: __________ he __________ (do) his homework?

B: No, he __________ (not do) it yet. He___________(do)it now.

He__________ (finish) it in a minute.

Ⅱ. Fill in the blanks with for or since:

1. We haven’t seen each other ______ a long time.

2. His father has been in the Party ______ 10 years ago.

3. The film has been on ______ 20 minutes.

4. The Greens have worked here ______ they came to China.

5. Tony’s grandmother has been dead ______ 2004.

Ⅲ. Do the exercises:

1. We _____________ (learn) 5000 words so far.

2. The farmer _____________ (plant) hundreds of trees in the last 20 years.

Ⅳ. Find out the mistakes, underline and correct them.

1.My classmates have bought the gifts for two days.

2.He has borrowed these books for a week.

3.They have left for half an hour.

4.The meeting has started for several minutes.

5.How long has he caught a cold?

6.We have come here since 6 o’clock.

7.The TV play has begun for ten minutes.

8.My brother has joined the army for three years.

9.The baby has fallen asleep since one o’clock.

10.I opened the door three hours ago, the door has opened for three hours.

Ⅴ. Change the sentences with the form “It is +… + since + …”.

1.My brother has been in the army for three years.

2.The meeting has been on for several minutes.

Ⅵ. Fill in the blanks with “have gone to/ have been to/ have been in”.

1.A: Where’s Jim, Li Lei?

B: He____________ the school library.

2. The twins___________ China for three years.

3. W e ___________the Great Wall twice. It’s very beautiful.

4. My sister _______ never _________ a foreign country.

5. A: May I speak to Frank?

B: Sorry, he _______________ the supermarket.

Ⅶ. Read the passage, and fill in the blanks.

Mike is an Australian boy. He stays in Beijing now, because his parents ________ (work) in China. He ________ (be) in China for only a few months. Mike ________ (not see) snow before. He thinks he will have his first “White Christmas” in his life. Mike likes to collect stamps. He ________ (collect) a lot of Chinese stamps since he ________ (come) to China.

Mike ________ (study) Chinese now. The Chinese is difficult for him, but he studies hard. He ________ (learn) about five hundred Chinese words so far. And he can write a little Chinese now.

Mike is learning to skate on real ice. He ________ (have) a lot of falls, but the falls make him ________ (learn) faster.

Mike said, “ I enjoy ________ (live) in China, and I will be able to learn a lot in China.

Teaching Designs:

The Present Perfect Tense

Gaoqiao Middle School Liu Zhenglian Teaching Aims and Demands

Learn to use the Present Perfect Tense

Teaching Key Points:

1.Key words and phrase:

already, just, before, ever, never, yet…

for, since, so far, in the last/past … years…

have/has gone to, have/has been to, have/has been in…

2.Key Structures:

She has cleaned the floor.

I have lived in Neijiang for 2 years.

It is a week since the dog died.

He has gone to Zizhong.

Teaching Difficulty:

The usage of the Present Perfect Tense

Teaching Aids:

A computer for multimedia use.

Teaching Procedures:

Step I. Greetings.

Step II. Lead-in.

1. The form and the past participle.

have/ has + V. p.p.

regular and irregular verbs

2. The first usage of the tense.

already

Step III. 1. The second usage of the tense.

for/ since

2. die--- be dead borrow--- keep

buy---have

Step IV. The differences between the expressions::

have/has gone to,

have/has been to,

have/has been in.

Step V. Exercise.

Blackboard Designs:

The Present Perfect Tense

Form: have/ has + V- p.p.

1. She cleaned the floor just now. ↘ = She has cleaned the floor.

The floor is clean now. ↗

2. I began to live in Neijiang two years ago. ↘ = I have lived in Neijiang for 2 years.

I still live in Neijiang now. ↗

3. have/ has gone to

have/ has been to

have/ has been in