英语微课说明.docx

微课内容说明：
Step1. 要求学生找出教材中含有现在完成时的句子
Go over the news story, Boy missing, police puzzled, and find the sentences using the present perfect tense.

学生将找到下面的句子.
1. Police in America have stepped up their search for a fifteen-year-old boy who went missing …
2. This incident has received great interest due to reports of …
3. I haven’t seen Justin since.
4. It’s happened to me!
5. When asked …, who has taken charge of the case, told …
6. So, while we have not dismissed the idea, we are looking into other possibilities as well.
Step 2 现在完成时的定义 提供更多例句

Step 3 带领学生回归教材，这是全课的重点和难点。