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Adopt several teaching approaches like cooperative learning, task-based learning, inquiry-based learning, topic-centered learning.
Emotion ,attitude and values：
Cultivate easy,natural and happy atmosphere for English-learning.so that strengthen actively learning awareness.
Build learning confidence and gain learning achievements.
The key points:
1.现在完成时的基本用法：概念，结构，标志（时间壮语）.
2.have been in,have been to ,have gone to 的用法。
3.如何使用since或for.
The difficult points:
瞬间动词与持续性动词转化.
现在完成时与一般过去时的区别
Teaching preparation：PPT，multimedia player. References.
Teaching procedures:
Step One Warm-up and lead in
T: What you have done during 3-day holiday?
S1: I’ve visited my grandparents.
S2:I’ve finished my homework already.
S3:I’ve read the story The journey to the West.
Step Two Presentation
First. the teacher gets some students to recall the concept ,the structure and the time adverbial with The Present Perfect Tense.
Second.make students list the rulers on the transition between verbs and their past participle forms.
Third .Play the PPt for the students to read so as to check if they have completely grasp the concept ,the structure and the time-adverbial with The Present Perfect Tense and the rulers on the transition between verbs and their past participle forms.
Step Three Practice
Show them the exercises for practice.
1、Both? his? parents? look? sad .Maybe they? _____what's? happened? to? him .A.?knew? B.?have known??C.?must know??D. will know2.You don’t need to go out to buy food. I _______some food online.order B.ordered C. have ordered D. will order3.She’s put her car in the garage, ____she?A. is B. has C. isn’t D. hasn’t4.This story is very interesting. I_________ (read) it twice already.5. -____Tom _____(find) his pen yet? -No, he ______.6.你的家庭作业已经完成了吗?(翻译句子,并做肯，否定回答。) Have you finished your homework yet ?
yes，I have. No I haven't.
7.你曾经去过迪士尼吗(翻译句子）？
Have you ever been to Disneyland?
8.杰克去哪里了？他去图书馆了。(翻译句子）
Where is Jack？He has gone to the library .