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2. know about “already” and “yet” used in this tense;
3. be able to express some ideas with the present perfect tense.
My educational visit to …
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?[ edju'kei'??n?l ]
adj. 教育的, 有教育意义的
I have been to the UK.
We have learned a lot about the British culture.
She has helped me learn English.
He has learned a little about Chinese cooking.
I have made a lot of friends.
In the past
Now（the result)
The present perfect tense
现在完成时
I went to the UK last year.
I know something about the UK.
I have been to the UK.
We visited many places of interest in the UK.
We know a lot about the British culture.
We have known a lot about the British culture.
现在完成时
( present perfect tense)
past
now(the present)
future
I taught him to cook Chinese food.
She often talked with me in English.
My English is improved.
She has helped me