Unit 13 Section A(3a～4c).课件 2025-2026学年人教版（2012）英语九年级全册

人教版英语9年级全册培优备课精做课件 第2课时(A 3a-3b) Unit 13 We’re trying to save the earth! 授课教师： Home . 班 级： 九年级（---）班 . 时 间： . 2026年2月8日 2026年2月8日星期日11时58分18秒 2026年2月8日星期日11时58分19秒 Discussion What do you know about sharks? Do you think sharks are endangered? Why? What do you think might have caused a fall in the number of sharks? Save me! 1. What can you see in the picture? 2. What may the passage talk about? A shark. It may talk about sharks. Before reading: Look at the picture & title and make a prediction. Reading skill: Guess the general idea of the article from the picture and the title. Paragraph 1 Paragraph 2 Paragraph 3 Fast reading: Match each paragraph with the general idea. ◆ We should save the sharks. ◆ Shark fin soup is popular. ◆ Sharks are endangered because of people’s killing. Reading skill: Skim the passage and find the topic sentence or general idea of each paragraph. 二 三 四 五 一 一、根据所给提示写出单词。(5分) 1.［2025·扬州期末改编］The new ________(法律)says no smoking in public places, or you’ll get fined. 2. Nowadays, lots of young people are interested in the IT i________. 3. It’s ______________(残忍的)to laugh at others’ weaknesses and we should learn to respect people. law ndustry cruel 中考考法 4. Until now, no __________(科学的)studies have shown that shark fins are good for health. 5. As we all know, plants are at the bottom of the food ________(链条). 二 三 四 五 一 scientific chain 中考考法 Task 1: Read Para. 1 and judge the sentence. (T or F) You’re killing a whole shark when you enjoy a bowl of shark fin soup. Careful reading Reading skill: Read the text carefully and find out the sources of the sentences in the text to make sure the details are correct. Task 2: Read Paras. 1 & 2. Find the reason why the number of sharks falls and fill in the chart. People enjoy _____________________. Fishermen ___________, ______________, then _____________________________. ________________________________have fallen by over 90 percent in the last 20 to 30 years. a bowl of shark fin soup catch sharks cut off their fins throw them back into the ocean The numbers of some kinds of sharks Task 3: Read Para. 2 and find the results of killing sharks. Results of killing sharks For a shark For shark groups For ocean ecosystem Without a fin, a shark can __________________________________. The numbers of some kinds of sharks _____________in the last 20 to 30 years. If the numbers of sharks drop too low, it will bring _______to all ocean life. no longer swim and slowly dies have fallen danger Reading skill: Scan the second paragraph and pay attention to grasp the missing information. Action to _________________ WildAid and the WWF Governments Individual are teaching the public about “finning”. develop laws to stop the sale of shark fins. help save the sharks. protect the sharks Task 4: Read Para. 3 and complete the table. Reading skill: Scan the third paragraph and summarize information by understanding the text. 二、单项选择。 ( )6. —The cutest robot in the half-marathon, “Little Giant 0306”, can ____ greet people ____ shake hands. —Oh, it is a robot from Beijing Vocational University of Science and Technology. A. either; or B. not; but C. not only; but also D. neither; nor 二 三 四 五 一 C 中考考法 ( )7. In our school library there ____ a number of books on science, and the number of them ____ growing larger and larger. A. are; is B. is; are C. have; are D. has; is 二 三 四 五 一 A 中考考法 ( )8. ____, the high-speed railway in China has made rapid progress. A. In the past B. So far C. In the future D. From now on 二 三 四 五 一 B 中考考法 ( )9.［2024·无锡中考］Everyone loves my dog Coffee, ____ he often makes a mess at home. A. until B. since C. though D. whether 二 三 四 五 一 C 中考考法 3a Read the passage about sharks and complete the fact sheet below. Number of sharks caught and traded every year How governments can help Two environmental groups against “finning” Around 70 million To develop laws to stop the sale of shark fins WildAid and the WWF against介词，在此处意为“反对”。 be against ( doing) sth.意为“反对（做）某事”。 Many have heard of shark fin soup. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup? hear of意为“听说﹔了解；知道”，强调从他人那里得到的消息。 同义短语为hear about。 Save the sharks! When people catch sharks, they cut off their fins and throw the sharks back into the ocean. This is not only cruel, but also 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’s ecosystem. If their numbers drop too low, it will bring danger to all ocean life. Many at the top of 意为“在……顶部或顶端”。 反义短语：at the bottom of 在……的底部或底端 be harmful to… 对……有害 cruel形容词，意为“残酷的；残忍的”。be cruel to sb./sth.意为“对某人/某物残忍”。 the food chain 食物链 believe that sharks can never be endangered because they are the strongest in their food chain. But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years. can在此句中意为“可能”，表推测﹐常用于否定句或疑问句中。can’t be意为“不可能是”。 辨析endangered, dangerous与danger endangered 形容词，意为“濒危的;濒临灭绝的”； dangerous 形容词，意为“危险的”； danger名词﹐意为“危险；威胁”。 in fact意为“事实上；实际上”。一般位于句首或句中。 fall by意为“下降了……”，其中 by作介词，表示变化的幅度。 the numbers of...意为“……的数量”，是固定短语the number of的复数形式。此处numbers表示不同种类的鲨鱼的数量。 percent名词，意为“百分之……”。仅用在基数词后﹐无论基数词数值为多少，percent都用单数形式。 Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of shark fins. So far, no scientific studies have shown that shark fins are good for health, so why eat them? Help save the sharks! 制定法律 so far意为“到目前为止；迄今为止”，常与现在完成时连用。 【拓展】scientific的相关词: scientific adj. 科学上的；科学的 science n. 科学 scientist n. 科学家 听说；了解；知道 对……有害 在……顶部或顶端 食物链 事实上；实际上 ……的数量 下降了…… 制定法律 到目前为止；迄今为止 be harmful to at the top of the food chain hear of in fact the numbers of... fall by so far develop laws Summarize the key phrases 三、根据汉语意思完成句子。 10.到目前为止鲸鱼的数量下降了30%。 So far the number of whales _______ ________ ______ 30%. 11.在太阳底下看书对你的眼睛有害。 Reading in the sun ________ ___________ ________ your eyes. has dropped by 二 三 四 五 一 is harmful to 中考考法 12.在山顶上，你能欣赏到周围全部美丽的风光。 You can view all the beautiful scenes around ________ ________ ________ ________ the mountain. 13.事实上，这款新软件让我们的工作比以前高效多了。 ________ ________, the new software has made our work much more efficient than before. 二 三 四 五 一 at the top of In fact 中考考法 14.在过去的十年里，我从未听说过他的消息。 I’ve never heard of him __________ __________ ________ ________ ________. 二 三 四 五 一 in the last ten years 中考考法 Read the passage again and fill in the blanks with the words in the box. 3b so although if but when 1. 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 ocean’s ecosystem will be in danger. when so so although if but when 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 四、［2025·江西中考］阅读还原。(有两项多余)(5分) Plastic pollution is a serious problem, and it’s getting worse. Plastic can stay for a long time. Scientists are trying to create plastic that breaks down quickly, but the best way for now is to use less plastic. 15. ________ A. They are fresh. B. Don’t buy bottled water. C. Bottled water is expensive. D. But it is possible to start small. E. Here are five tips that can help you. F. Other countries make customers pay for them. G. Most things you buy come in plastic packaging. E 二 三 四 五 一 中考考法 Stop using plastic bags. Instead, take your own reusable shopping bag to the store. Every year, people use tons of plastic bags worldwide. Some countries try to stop using plastic bags. 16. ________ Say no to the straw(吸管). A study showed that around 8.3 billion plastic straws cover the world’s beaches. So when you order a drink, say no to the straw, or bring your own reusable one. A. They are fresh. B. Don’t buy bottled water. C. Bottled water is expensive. D. But it is possible to start small. E. Here are five tips that can help you. F. Other countries make customers pay for them. G. Most things you buy come in plastic packaging. F 二 三 四 五 一 中考考法 17. ________ Carry a reusable water bottle with you. Around the world, nearly a million plastic bottles are thrown away every minute. The problem is so bad that in some countries, stores aren’t allowed to sell bottled water any more. Avoid plastic packaging(包装). 18. ________ It’s almost everywhere. But there is something you can do, too: avoid fruit or vegetables packed in plastic. A. They are fresh. B. Don’t buy bottled water. C. Bottled water is expensive. D. But it is possible to start small. E. Here are five tips that can help you. F. Other countries make customers pay for them. G. Most things you buy come in plastic packaging. B 二 三 四 五 一 G 中考考法 Recycle what you can. You can’t recycle all plastic things. 19. ________ For example, you can recycle bottles and milk or juice bags. In some countries, machines take the bottles and give a little money back for each bottle. A. They are fresh. B. Don’t buy bottled water. C. Bottled water is expensive. D. But it is possible to start small. E. Here are five tips that can help you. F. Other countries make customers pay for them. G. Most things you buy come in plastic packaging. D 二 三 四 五 一 中考考法 五、 任务型阅读。(12分) A new study has found that 176 kinds of birds around the world are building their nests with rubbish from humans, such as cigarette butts(烟头)and plastic bags. Aren’t birds supposed to use grass, leaves and other parts of trees to build their homes? Yes, they used to. But now things are different. A group of European scientists looked into about 35, 000 studies on bird nests. It is found that birds have used man-made things in nests almost everywhere on the earth. Scientists find that some rubbish seems to be helpful. 二 三 四 五 一 中考考法 This is why birds “like” putting it in their nests. For example, cigarette butts have some chemicals, so they can keep insects away and protect the baby birds. Plastic bags are useful in keeping the animals warm, and other hard things, such as paper cards, can make nests stronger. However, in the end, human rubbish may only bring more problems to birds. The unhealthy chemicals in cigarettes hurt the baby birds. They may get sick or have shorter lives. If the baby birds eat other kinds of rubbish by accident, they will also get hurt. To make matters worse, if the cigarette fire is not off when 二 三 四 五 一 中考考法 the bird brings it back to its home, it may set the nest on fire. Seabirds were found to add fishing nets to build up their nests, which may also cause them in danger, and it’s impossible for them to get out by themselves. Our friends in the air are living a hard life because of some human activities. To improve the situation, people shouldn’t be allowed to smoke or leave rubbish behind when there are many trees around. And to make the idea work, people will have to pay certain money or help clean the area for some time if they don’t follow the rule. This protects the environment as well as the animals living nearby. We can also play our part by building artificial(人工的)nests that are warm and safe for birds to use instead of forcing them to build their own. 二 三 四 五 一 中考考法 二 三 四 五 一 materials natural protection 中考考法 二 三 四 五 一 health be/get punished 中考考法 以读促写 25. What can we do to protect the birds from rubbish?Please list at least two ways. ____________________________________________________________________________________________________________________________________________________________________________________________________ 二 三 四 五 一 First, I will never litter, especially near places where birds might build nests. Second, I'll tell my friends and family about how human rubbish harms birds and encourage them to protect birds. 中考考法 Curriculum words: shark, fin, cruel, harmful, chain, ecosystem, industry, law, scientific Useful expressions: be harmful to, at the top of, the food chain... Sentences: If their numbers drop too low, it will bring danger to all ocean life. But in fact, around 70 million sharks are caught and traded in this industry every year. Summary 107052.43 $