新概念英语青少版4A Unit 4
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c.注意have gone 和have been 区别 He has gone to Alice Springs. 表示他在那里或 正在去那里的路上。 He has been to Alice Springs. 表示他曾经去过 那里，但他现在已不再那里。
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10
Key Structures
Finish the exercises.
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12
ded Conversation
1. From my brother. 2. In Australia. 3. For six months. 4. He’s an engineer. 5. A big firm. 6. Yes, he has. 7. An Australian car. 8. To Alice Spring. 9. Darwin. 10. To Perth. 11. No, he won’t.
ii. 动作开始于过去，现在仍在继续或刚刚结束。这 时经常与for+一段时间或since+时间点一起使用
He has been there for six months.
He has never been abroad before.
iii. 动作刚备完成，例如I have just received a letter from my brother.
Unit 4 An Exciting Trip
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1
An exciting trip
I’ve just received a letter from my brother Tim. He is in Australia. He’s been there for six moths.
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2
An exciting trip
Tim is an engineer. He is working for a big firm and he’s already visited a great number of different places in Australia.
.
3
An exciting trip
He’s just bought an Australian car and he is going to Alice Spring. A small town in the center of Australia. He will soon visit Darwin. From there he will fly to Perth. My brother has never been abroad before. So he finds this trip very exciting.
- Because I’ve already read it. 句型3 He’s gone to Australia. 句型4 - Has the train arrived?
- No, it hasn’t arrived yet.
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7
Key Structures
a.现在完成时表示
i. 动作发生在过去的某个时间（确切的时间并不重 要，也不会给出），但影响十分明显，例如 I have read the letter, but I don’t understand it.
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11
Reading
six… disappointed… today… birthday cards cards… presents… postman… delivered… mother… What has happened to the post? strike… deliver your cards find… some… collect them on their way… post office happy… after all
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8
Key Structures
b. already 用在肯定句中，yet用在否定和疑问 句中。 He has (already) visited a great many of places (already). The train hasn’t arrived yet.
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9
Key Structures
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6
Pattern Practice
Have/has done 现在完成时表示发生在过去的 某个时间（具体时间不清楚）并一直持续到现 在的动作。注意yet只能用在疑问句和否定句中。 句型1 Have you received Tim’s letter yet? 句型2 - Why don’t you read that book?
.
10
Key Structures
Finish the exercises.
.
12
ded Conversation
1. From my brother. 2. In Australia. 3. For six months. 4. He’s an engineer. 5. A big firm. 6. Yes, he has. 7. An Australian car. 8. To Alice Spring. 9. Darwin. 10. To Perth. 11. No, he won’t.
ii. 动作开始于过去，现在仍在继续或刚刚结束。这 时经常与for+一段时间或since+时间点一起使用
He has been there for six months.
He has never been abroad before.
iii. 动作刚备完成，例如I have just received a letter from my brother.
Unit 4 An Exciting Trip
.
1
An exciting trip
I’ve just received a letter from my brother Tim. He is in Australia. He’s been there for six moths.
.
2
An exciting trip
Tim is an engineer. He is working for a big firm and he’s already visited a great number of different places in Australia.
.
3
An exciting trip
He’s just bought an Australian car and he is going to Alice Spring. A small town in the center of Australia. He will soon visit Darwin. From there he will fly to Perth. My brother has never been abroad before. So he finds this trip very exciting.
- Because I’ve already read it. 句型3 He’s gone to Australia. 句型4 - Has the train arrived?
- No, it hasn’t arrived yet.
.
7
Key Structures
a.现在完成时表示
i. 动作发生在过去的某个时间（确切的时间并不重 要，也不会给出），但影响十分明显，例如 I have read the letter, but I don’t understand it.
.
11
Reading
six… disappointed… today… birthday cards cards… presents… postman… delivered… mother… What has happened to the post? strike… deliver your cards find… some… collect them on their way… post office happy… after all
.
8
Key Structures
b. already 用在肯定句中，yet用在否定和疑问 句中。 He has (already) visited a great many of places (already). The train hasn’t arrived yet.
.
9
Key Structures
.
6
Pattern Practice
Have/has done 现在完成时表示发生在过去的 某个时间（具体时间不清楚）并一直持续到现 在的动作。注意yet只能用在疑问句和否定句中。 句型1 Have you received Tim’s letter yet? 句型2 - Why don’t you read that book?