Unit13-Section2-SavetheSharks!拯救鲨鱼.pptVIP

Read the passage about sharks and complete the fact sheet below. Lets do this to review the text !!! Some people like to eat sharks fin soup, especially in _______China. But getting the s harks fin is very _____. When people catch sharks, they ____ ____their fins and throw the sharks into the ocean. The shark slowly dies because it cant _____ without the fin. And it is also ______ to environment. Sharks are at the ____ of the food chain. If the number of sharks drops too low, it will break the balance of nuture. Please say no to eating the shark fin soup, and take action to save the sharks! 2. When people catch sharks, they cut off their fins and throw the shark back into the ocean. cut off有以下几种意思： ①切断（水、电）；中断；关掉。 如：Their water supply was cut off． 他们的水源被切断了。 ② 切下来；剪下来。 如：They cut off the heads of their captives． 他们把俘虏的头砍了下来。 3. This is not only cruel, but also harmful to the environment.这种方法不但残忍而且对环境有害。 not only…but also… “不仅……而且……”; e.g. She not only plays well, but also writes music. 她不但很会演奏，而且还会作曲。 Not only men but also women were chosen. 不仅仅是男的，女的也有被选中的。 连接并列主语, 谓语与靠近的主语保持一致。 e.g. Not only you but also he has to leave. not only放在句首，后接句子时要用倒装结构。 e.g. Not only had the poor man been fined, but also he had been sent to prison. 这个可怜的人不仅被罚款，而且还被送进了监狱。 4.harmful 形容词，意为“有害的”。常构成短语 be harmful to “对……有害的”。 Smoking is harmful to the health. 5. A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。 no longer意思是“不再” e.g. I’m no longer a student.我不再是个学生了。 not…any longer = no longer侧重时间 e.g. He no longer lives here.他不在这儿居住了。 = He doesn’t live here any longer. (一个时间以前他住 在这儿,过了这个时间,他就离开了.) not…any more = no more 侧重程度和数量 e.g. You can drink no more.你不能再喝了。 = You can’t drink any more. (喝酒的量到了一定程度,不能再继续下去了.) 6. Sharks are at the top of the food chain in the ocean’s ecosystem. 鲨鱼位于海洋生物系统食物链的顶部。 at the top of 在……最高地位; 用最高[最大]的(速