(
课件网) Grammar focus-4c Unit 8 We are trying to save the earth! Lead in 情 境 导 入 Free talk 1.What happened to our earth 2.What should we do to save the earth ...used to ... but now... The government should ... Everyone should... 1. We’re trying to save the earth. 2. The river used to be so clean. 3. The air is badly polluted. 4. No scientific studies have shown that shark fins are good for health. 5. We should help save the sharks. Present progressive used to Passive voice Present perfect Grammar Focus: Read and find out the tense. Modal verbs 新 课 探 究 Presentation Work in groups and talk about one point. 新 课 探 究 Presentation Group 1 Present progressive Nancy is working on a new book about stories. 目前一段时间内正在进行 Why are you always coming late for class 正在发生 They are playing basketball. 含说话者的强烈情感 现在进行时结构：be (am/is/are) + v.-ing 含义： （1）表示说话时(瞬间)正在进行的动作 （2）表示目前或现阶段正在进行的动作。 （3）表示说话者的强烈情感。 标志词：Look, Listen, now, right now… ⒈I think people are (throw) litter into the river and factories are also (put) waste into the river. 2. People's behavior is (turn) beautiful places into ugly ones. 3. Do you realize that you're (kill) a whole shark each time you enjoy a bowl of shark fin soup 4. Environmental protection groups are (teach) the public about "finning". 5. He is always (lose) things. 6. The weather is (get) warmer and warmer these days. 7. The Bus345 (come) soon. 8. I (take) my vacation in Sanya now. 9. Listen! The birds (sing) in the tree. 10. --Where is your mother --Perhaps she (cook) in the kitchen. throwing putting turning killing teaching losing getting is coming am taking are singing is cooking Exercise1 新课探究 新 课 探 究 Presentation Group 2 used to do The river didn’t use to be clean. Did the river use to be clean Yes, it did. / No, it didn’t. The river used to be clean. 结构： used to do didn’t use to do sth/ used not to do sth. Did...use to do sth Yes, ...did. / No, ... didn’t. Used.. to do ... Yes, ...used to./ No, ...usedn’t to. 拓展: used to do sth. 过去常常做某事 be used to doing 习惯于做某事 be used to do sth 被用于做某事 used to do sth. 过去常常做某事 1.The river used to (be) clean , but it is full of rubbish now. 2. I didn't use to (like) him much when we were at school. 3. You used to (see) her often,didn't you 4. Did she use to (have) long hair 1. I don't think I can get used to (live) in a big city after living in the country. 2. We will soon be used to (learn) online. 3. The food isn't tasty and it will take you some time to get used to (it). 4. I used to (walk) to school, but now I'm used to (ride) to school. be/get used to sth./doing sth. 习惯于…，适应于…；习惯做某事 be like see have living learning it walk riding 新课探究 Exercise2 新 课 探 究 Presentation Group3 Passive voice Some laws are developed to stop the pollution. These trees were cut down by the workers la ... ...
