《U13 We're trying to save the A (3a-4c)》人教版精品课件.ppt

九年级英语下〔RJ〕 教学课件;学习目标;Lead in;There are some animals are endangered. We should do something to protect the animals and the environment! ;The zoos provide homes for many endangered animals. ;1. Have you ever seen a shark〔鲨鱼〕? 2. What do you know about sharks?;Presentation;Where shark fin soup is popular;3b;3. Many think that sharks are too strong to be endangered, _____ they are wrong. 4. _________ there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one day ___ we do not do something to stop the sale of shark fins.;Retell the passage according to the words below.;Language points;1. A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。;no longer和not…any longer侧重时间。 e.g. He no longer lives here. = He doesn’t live here any longer. 他不在这儿居住了。(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侧重程度和数量 e.g. You can drink no more. = You can’t drink any more. 你不能再喝了。(喝酒的量到了一定程 度，不能再继续下去了。) ;;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。 ;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。 ;3. 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。;e.g. I looked at the top of his head, his hair shiny and parted smoothly. 我看他的头顶, 头发闪亮且平滑地分开。 He shouted at the top of his voice in order that he might be heard. 他尽力大声叫喊, 以便别人能听见。;4. If their numbers drop too low, it will bring danger to all ocean life. 如果它们的数目降至过低，会给所有海洋生物 带来危险。 此句复数形式的numbers表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。;e.g. In that country, the number of children going to school is higher in cities than that in towns and villages. 在那个国家，城市儿童入学人数比乡镇及农