单 元：Unit 1 Tales of the unexplained
板 块：Grammar and usage 1
Thoughts on the design:
Learn the grammar Present perfect tense and Present perfect continuous tense.
Teaching objectives:
1. Learn how to form and use the present perfect tense.
2. Understand when the present perfect continuous tense is used in sentences.
Teaching procedures:
Step 1 Lead- in
Go over the news story on Page 2 and find the sentences using the present perfect tense. Please explain why the tense is used in these sentences.
Step 2 Present perfect tense
1. The form of the present perfect tense: has/have done.
