Module 12 Unit 3 Language in use（讲解课件PPT）-【优翼·学练优】2023-2024学年八年级上册初二英语同步备课（外研版）

Module 12 Help Unit 3 Language in use 外研八年级（上） Learning Objectives 1. use modal verbs can,could,must and imperative sentence correctly; 2. read and understand articles about emergencies; 3. make a poster to prevent campus accidents. By the end of the class, we will be able to: Read the following sentences and discuss what does the Italic words want to express. That could be harmful! Betty, you must know! Stay away from windows and heavy furniture. Do not stand near street lights or under power lines. To show possibility. To show certainty. To show requirement. To show ban. 3 情态动词can和could都表示“能够，可以”等意思，还可表示对现在或将来的推测，意为“会，可能”，但can表示推测时，往往用于否定句和疑问句。用于疑问句时，can比could表示的“可能性要大；用于否定句时，can’t表示“不可能”。 could则可用于肯定句、否定句和疑问句。 情态动词must也可以表示猜测, 意为“一定，准是”，通常只用于肯定句。 情态动词can、could、must 4 祈使句表达说话人对对方的叮嘱、劝告、希望、禁止、建议、请求或命令等。祈使句一般以动词原形开头，无时态和数的变化。 常见的句型如下: 1. Do 型, 即：动词原形+宾语+其它 e.g. Close the door. 把门关上。 2. Let 型, 即：Let sb.+动词原形+其它 e.g. Let’s clean up the room.让我们打扫房间吧。 3. Be 型, 即：Be+形/名+其它 e.g.Be quiet！安静！ 4. No 型，即：No+doing/名, 用来表示禁止。 e.g.No smoking!禁止吸烟！ 祈使句 5 1. Complete the sentences with could, must or mustn’t. 1. It is dangerous. You ______ keep out! 2. These stairs are not safe. You ________ use them. 3. The rocks are falling down. You ______ get hit. 4. The river is too deep. You _________ swim in it. 5. Betty ______ know what to do because she did some basic medical training. must mustn’t could mustn’t must 2. Underline the correct words to complete the first aid instructions. 1. Get / Do not get medical help immediately. 2. Ask / Do not ask them where the pain is. 3. Lift / Do not lift them because you may drop them. 4. Keep / Do not keep them warm. 3. Complete the poster about earthquakes with the correct form of the words and expressions in the box. do not use hide under keep leave stay away When there is an earthquake... 1. ____________ from the windows. 2. ____________ a table. 3. ____________ the lift. 4. __________