Unit 13 Section A 1a-2d 课件 2022-2023学年人教版九年级英语全册

Unit 13 We’re trying to save the earth! Section A 1a-2d objectives . 1) Learn and master new words: sharks, fin, cruel, harmful, chain, ecosystem, industry, law; 2)Learn and master the phrases:hear of, cut off, be harmful to, at the top of, the food chain. Revsion at the bottom of the river 在河的底部 2. be full of the rubbish 充满了垃圾 3. throw litter into the river 把垃圾扔入河中 Revsion 4. play a part in 尽一份力... 5. land pollution 土地污染 6.cut down air pollution 减少空气污染 7. make a difference 产生影响 8.take action 采取行动 new words and phrases. shark 鲨鱼 fin 鳍 cruel 残酷的;残忍的 harmful 有害的 chain 链子;链条 ecosystem 生态系统 industry 工业;行业 law; 法律;法规 new words and phrases. be harmful to对......有害 at the top of在.....顶部或顶端 the food chain食物链 Read the passage quickly and judge the sentences T or F . ①Shark fin(鱼鳍)soup is famous and expensive all around the world. ② Sharks are at the bottom of the food chain in the ocean’s ecosystem. ③ WildAid and the WWF are environmental protection groups in China. ④ Shark fins are good for health Read para. 1 and answer the questions: ① Where is Shark fin(鱼鳍)soup popular? ② What are you doing, when you enjoy a bowl of Shark fin(鱼鳍)soup ? Read para. 2 and answer the questions: ① What do people do, when they catch sharks ? ② How many sharks are caught and traded every year ? Read para. 3 and answer the questions: ① How can the governments do to save sharks ? ② What are the two environmental groups against “ finning” ? Read the passage about sharks and complete dthe chart below. 3a Language points 1.not only...but also...的用法: (1)not only…but also…意为“不仅……而且……”,用于连接两个表示并列关系的成分,着重强调后者,其中的also有时可以省略。如: Shenot only plays well, but also writes music. 她不仅很会演奏,而且还会作曲。 Language points He not onlywrites his own plays, he also acts in them. 他不仅是自编剧本,还饰演其中的角色。 He works notonly on weekdays but on Sundays as well. 他不仅平时工作,星期日也工作。 Language points (2)若连接两个成分作主语,其谓语通常与靠近的主语保持一致,即就近原则。如: Notonly you but also he has to leave. 不只是你,他也得离开。 Language points (2)若连接两个句子,notonly后面的句子要用倒装,如: Notonly di