新目標(biāo)9下Unit11SectionAp3.ppt

Unit 13 Were trying to save the earth!,Section A 2 3a-3b,The earth is badly polluted. What should we do to save the earth?,Lets take actions (采取行動),Bring a bag to go shopping.,Take buses instead of driving cars.,Throw rubbish in the bins and keep public places clean.,Never take wooden chopsticks or plastic forks when buy takeaway food.,Recycle the waste.,A pangolin,They are caught and traded by people. They are in great danger!,Do you know other endangered animals?,A shark,Do you think sharks are endangered?,1.Are sharks endangered animals? Yes, they are. 2.If so, what cause them to be in danger? People catch them for their fins.,Shark fins,Read the article and answer the questions:,Humans are not the only life on the earth. There are also many animals and plants living with us.,There are some animals are endangered. We should do something to protect the animals and the environment!,in southern China,around 70 million,develop laws to stop the sale of shark fins,WildAid and the WWF,3a,Read the passage about sharks and complete the fact sheet below.,Read the article again and answer questions: 1. What do people do after cutting off the fins? 2.Why is cutting off the fins cruel and harmful to the environment?,3.How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years? 4. What do the environmental protection groups do the help save the sharks? 5.Is it true that shark fins are good for peoples health?,1. What do people do after cutting off the fins? They throw the sharks back into the ocean. 2.Why is cutting off the fins cruel and harmful to the environment? Without a fin, a shark can no longer swim and slowly dies. Sharks are at the top of the food chain in the ocean ecosystem. If their numbers drop too low, it will bring danger to all ocean life.,3.How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years? The numbers of some kinds of sharks have fallen by 90 percent in the last 20 to 30 years. 4. What do the environmental protection groups do the help save the sharks? They are teaching the public about finning. They have even asked governments to develop laws to stop the sale of shark fins. 5.Is it sure that shark fin soup is good for peoples health? No. So far, no scientific studies have shown that shark fins are good for health.,3b,Read the passage again and fill in the blanks with the words in the box.,Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup. 2. Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger.,when,so,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.,but,Although,if,Retell the passage according to the words below.,1. A shark can no longer swim and slowly dies. 鯊魚不能再游泳然后慢慢死掉。,no longer意思是“不再” , 相當(dāng)于not any longer。 e.g. Mr Brown no longer works here. 布朗先生不再在這里工作了。,2. This is not only cruel, but also harmful to the environment. 這不但殘忍而且對環(huán)境有害。,not onlybut also 用于連接兩個表示并列關(guān)系的成分，著重強(qiáng)調(diào)后者，其意為“不僅而且”; 其中的also有時可以省略。,e.g. She not only plays the piano well, but also writes music. 她不但很會演奏鋼琴，而且還會作曲。 Not only she but also her parents are musicians. 不僅僅是她，她的父母都是音樂家。 Not only her parents but also she is a musician.,若連接兩個成分作主語，其謂語通常與靠近的主語保持一致。 e.g. Not only you but also he has to leave. 不只是你，他也得離開。,not only放在句首, 后接句子時要用倒裝結(jié)構(gòu)。 e.g. Not only can she play the piano well, but she can also write music.,be harmful to 對有害 e.g. Smoking is harmful to the health. 吸煙有害健康。 Playing computer games much is harmful to students. 電腦游戲玩太多對學(xué)生有害。,3. Sharks are at the top of the food chain in the oceans ecosystem. 鯊魚位于海洋生物系統(tǒng)食物鏈的頂部。,at the top of 在最高地位; 用最高最大的(速度, 聲音等) e.g. He shouted at the top of his voice in order that he might be heard. 他盡力大聲叫喊, 以便別人能聽見。,4. If their numbers drop too low, it will bring danger to all ocean life. 如果它們的數(shù)目降至過低，會給所有海洋生物帶來危險。 此句復(fù)數(shù)形式的numbers表達(dá)全海洋中鯊 魚的總量。當(dāng)表示數(shù)值的高或低時，number要用high或low修飾。,e.g. In that country, the number of children going to school is higher in cities than