Transcript 高三英语情态动词
Revision for Modal Verbs Teacher: Hu YiLei School: Jinling Middle School Students: Class One, Senior Three Revision on Basis Uses of Common Modals CAN may MUST COULD need SHOULD MIGHT Complete the tips with “can, may, must, should ,need” Flu, Don’t worry may catch a cold in the Many people_____ spring or the fall. There are some ways to prevent it: 1. Cover your nose and mouth with a tissue when you cough or sneeze. You _______ mustn’t throw the tissue everywhere after you use it. And clean your hands afterward, noticing may that viruses________ remain infectious(传染 性) for hours. 2. Wash your hands often with soap and warm water, especially after you cough or sneeze. Alcohol-based gel hand can cleaners ________ inactivate(减除…活性) viruses. 3. Avoid touching your eyes, nose or mouth. Germs ______spread this way and consider may buying a mask in case you ________it in the need future. 4. At home, you ________ should usually clean your room. keeping house air can circulation_______ reduce the spread of virus. 5. By eating food rich in vitamin C to improve your natural immunity(免疫力). must take vitamin C pills, please * if you _____ ensure tablets containing zinc (锌) to promote(促进)absorption of vitamin C. 6. Those who show physical discomfort, the symptom of high fever, cough _____ must stay in the home, and at least 1 meter with others maintain, seek medical advice immediately. Put these tips into practice and you_________ may not be infected with the terrible flu! Meaning Structure 肯定是… must be 可能是… may be 不可能是… can’t be ‘ It can’t be… ItItmay be… is a hat. It must be… It can’t be… It may be… It is a mobile phone. It must be… The person can’t be… The person may be… The person must be… Meaning Structure 肯定（正在）… must be doing 可能（正在）… may be doing 不可能（正在）… can’t be doing ‘ What is she doing? 1 She can’t be doing… She may/must be doing… What is she doing? 2 She can’t be doing… She may/must be doing… What is she doing? 3 She can’t be doing… She may/must be doing… A cat may have walked on the paper. A small dog must have done this. An elephant can’t have made these marks. Meaning Structure （过去）肯定… must have done （过去）可能… may have done （过去）不可能… can’t have done ‘ Structure Meaning 对现在正在进行 对 ? 表 的动作表猜测 猜测 对过去已经发生 对 ? 表 的动作表猜测 猜测 肯定… must be doing must have done 可能… may be doing may have done ‘ 不可能… can’t be doing can’t have done A:where’s Peter? may be B: I don’t know. He_______in the teachers’ office. can’t be A: He_______there, for I was there just now. C: I know where he is. He is ill and _____________ the doctor now. must be seeing A: What’s the matter with him? C: He had a sore throat and coughed with high fever . must have caught A: He _______________a bad cold. B: Really? He is not himself all these days. I’m afraid that he______________with may be infected H1N1. A: Oh, he shouldn’t ________________ have gone travelling outside last weekend, or he wouldn’t have got ill. These days , everyone may be talking ____________(talk) about this virus. C: But we ___________ too nervous. It needn’t be can’t be ________that bad, for we have done our best to prevent it from spreading. B: Hope so. How I wish he _________________ could/would/might recover soon. Homework Finish the exercise paper after you review what you have learned in the class. Revision for Modal Verbs