江苏省沭阳县潼阳中学高中英语Unit3Protectingourselves教案17牛津译林版.docx

Unit3 Protecting ourselves 科目: 英语 主备人: 备课日期： 课 题M10 Unit3 Protecting ourselves第17课时计划上课日期教学目标1.Learn some info about Aids.2.Master the usage of the words and phrases教学重难点To help students understand what is aids教学流程内容板书关键点拨加工润色Skills building 1: identifying degrees of obligation Step 1 : Look at the following sentence patterns: You do not have to You ought (not) to You should (not) You had better/ had better not You have to You must/ must notDo you know which pattern expresses the strongest obligation, which expresses less strong obligation and which expresses the least strong obligation? look at some sentences and decide which are suggestions and which are necessities. 1. You dont have to go school tomorrow if you are feeling ill. 2. You ought to eat some fruit every day 3. You had better wake up earlier tomorrow. 4. You must not forget to do your homework. 5. You should get enough rest every night. 6. You must not forget to do your homework. 7. You ought not to eat so much ice cream. 8. You should not play computer games all evening. 9. You have to take medicine if you want to get better. 10. We must finish our project today because it is due tomorrow. Step 2 categorizing notes about warnings listen to a lecture by Dr Grey and write down the modal forms the doctor uses, and then categorize the obligation levels of the doctors advice.Skills building 2: asking for and offering alternatives Step 1 : ask a doctor for some advice Suppose you were Mrs. Tang, and you wanted to know what should be done to cure your cold. You went to ask a doctor for some advice. Make some sentences using the patterns asking for alternatives given in this part. For example: What can I do instead of taking large amounts of vitamins and painkillers when I have got a headache or a runny nose?Step 2: asking a doctor for alternativesSuppose were the doctor, what advice would you like to give to Mrs. Tang? Use the patterns offering alternatives to make some sentences. One of you will act the doctor and answer some questions about alternatives to medicine. Read the guidelines and work in pairs to decide who will be the doctor first. After you have finished your dialogue, you should switch roles.Skills building 3: writing warningsstep 1: Use the information you have gathered in Steps 1 and 2 and the patterns presented in the three skills building parts to write your articles. .how to include warnings in an article as well as giving advice what language is often used to express warnings what information is usually in