1、Unit 13 Were trying to save the earth! (Section A Grammar Focus-4c) Play a game(check homework park pollutions 单 词检测 ? 垃圾 ? 渔 民 ? 煤、煤块 ? 承 担得起 ? 回 收利用 litter fisherman coal afford recycle 1. 不同种类的污染 2. 不再 3. 把垃圾扔到河里 4. 的数量 5、在中国南部 6、对、有害 7、把危险带给、 different kinds of pollution no longer throw rubbish
2、into the river the number of 短 语检测 in southern China be harmful to bring danger to Translate the sentences. 1. 甚至是河底都满是垃圾。 2. 这个方法不仅残酷还对环境有害 。 3、鲨鱼处于食物链的顶部 4、许多人相信鱼翅对健康有好处 Even the bottom of the river was full of rubbish. This is not only cruel, but also harmful to the environment. Sharks are at the
3、 top of the food chain in the ocean s ecosystem. A lot of people believe that shark s fins are good for health. Retell the article Pay attention to the sentences. 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 th
4、at shark fins are good for health. 5. We should help save the sharks. used to Present progressive Passive voice Present perfect Modal verbs 现在进行时 : Present Progressive 结构 : be (am/is/are) + v.-ing 标志词： Look, Listen, now, right now e.g. Look! The boy is crying. 定义： 表示说话时 (瞬间 )正在进行的动作 , 也表示目前或现阶段正在进行的
5、动作。 现在分词的构成： 1、一般情况下在动词词尾直接加 ing 2、以不发音字母结尾的动词，去掉 e加 ing 3、以一个辅音字母结尾的重读闭音节的动词，双写最后一个辅音字母，在加 ing go write have stop run used to do sth. 表示过去常常做某事 , 而现 在往往不做了 , 后接动词原 形。 be used to doing sth. 表示习惯于做某事 e.g. I used to get up at six o clock. Joe is used to drinking a cup of coffee every morning. used to do与 be used to doing
