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-Yes，I did when I was little, but I haven’t played for a while.
教学步骤:
Step 1.Greeting and lead-in.
Let students read the sentences in Grammar focus loudly.
Then lead in the present perfect tense.
Step2.Presentation
Present all the aspects of present perfect tense on the screen.
现在完成时的构成，现在完成时的用法，时间状语，for和since的用法,have gone to 和have been to, have been in 的用法，短暂性动词与可延续性动词，现在完成时和一般过去时的区别。
Review the grammar one by one with the students.
Step3. Practice.
Task one: do the exercise about for and since(for 和since的用法比较)
Task two: do the exercises about have gone to, have been to, have been in（去过某地，去了某地，在某地待了多长时间）
Task three: do the exercises about correct the sentences.（延续性动词与非延续性动词）
Task four: fill in the blanks with the correct forms of the verbs.（一般过去时与现在完成时）
Step4. Consolidation.
Task one: ask students to finish 4a in the book, then check the answers.
Task two: ask students to finish 4b in the book, then check the answers.
Step 5. Oral practice4c
Step 6. Homework：Finish the exercises in the exercise book.