Unit 4 Adversity and courage Discover Useful Structures 教案-2021-2022学年高中英语人教版（2019）选择性必修第三册

2019新人教高中英语选择性必修三 Unit4 Adversity and Courage Discover Useful Structures公开课教案 Teaching aims： 1.Enable students to master the usage of the present perfect continuous tense. 2.Guide students to distinguish the present perfect continuous tense from the present perfect tense. 3.Help students to use the present perfect continuous tense to express your own ideas in the real situations. Teaching key points: 1. Help students identify the usage of the present perfect continuous tense. 2. Instruct students to tell the present perfect continuous tense from the present perfect tense. 3. Lead students to use the present perfect continuous tense in the context. Teaching difficult points: 1. How to use the present perfect continuous tense in the real situations. 2. Distinguish the present perfect continuous tense from the present perfect tense. Teaching procedures: StepⅠ Lead-in Look at the sentence in the present perfect continuous tense.Find more examples from the text and pay attention to the predicate verbs. Example:This is the adventure that I have been dreaming of. Suggested answers: 1.We have been managing to survive. 2.We have been struggling for days. Step Ⅱ Observe and analyse Activity 1　Observe and summarise the function of the present perfect continuous tense. 1.We have been waiting for you for half an hour. 我们等了你半个小时。 2.I have been learning English since three years ago. 自从三年前以来我一直在学英语。 3.I have been visiting some cities of China this month. 这个月我一直在参观中国的一些城市。 4.Her eyes are red.It’s obvious that she has been crying for a long time. 她的眼睛红红的,显然哭了很长时间。 5.She has always been working hard. 她工作一直很努力。 6.Too much has been happening today. 今天真是多事的一天啊。 Activity 2　Observe and identify the differences between the present perfect continuous tense and the present perfect tense. 1.He has been writing a novel,which will be finished next month. 2.He has written a novel,which is being prepared to come out now. 3.I have been visiting my hometown recently,and it impresses me differentl