Unit 2 Saving the Earth Topic 3 Section D 课件2025-2026学年仁爱科普版英语九年级上册

Unit 2 Saving the Earth Topic3 What can we do at home to protect the environment? Section D Review 鼓励某人做某事 encourage sb to do sth 赶快，快点 hurry up 放弃 give up 毕竟，归根结底 after all 用光，耗尽 run out 关掉电源 shut off the electricity 节约能源 save energy 代替，而不是 instead of 行动胜于言辞 Actions speak louder than words 说起来容易做起来难 Easier said than done 三、Grammer: Compound Sentence 1. In many countries, such as New Zealand, Canada, and Brazil, forests were cut down to provide wood to build houses. 2. Many young volunteers around the world are working in their holidays to plant new trees to replace them. 3. Even though tree planting is very difficult, they love their work. 4. They believe that in 50 years their little trees will become beautiful forests. Learning aims 一、New words: remove, replace, dry, insect, bite 二、Important phrases and sentences Revision in class 1. 使用某物做某事 2.全世界 3.寻找 4.不但...而且 5.太...而不能做某事 6.花费某人多长时间做某事 7.是第一个做某事的...... 8.某事需要被做 9.要求某人做某事 10.达到多少数量 11.用完，耗尽 12. ……之一 13.达到某个速度 14.以某个速度 1. use sth. to do sth. = use sth. for (doing) sth. 2. all over the world 3. look for 4. not only... but also... 5. too + adj. + to do sth. 6. It + takes + (sb.) + time + to do sth. 7. be the first/second/--- + n. + to do sth. 8. sth.+ require + (doing) sth. 9. require sb. to do sth. = ask sb. to do sth. 10. up to--- 11.run out /run out of 12. one of--- 13. reach a speed of+具体速度 14. at a speed of + 具体速度 Why do they plant different kinds of trees ? They plant different types of trees so that birds and animals can live in the forests. What difficulties do tree planters face when they plant trees ? (1)The weather may be very hot and dry or it may be very cold and wet. (2)There are often many insects that bite these planters on their legs, arms, and faces while they work. (3)They carry heavy bags of small trees, and working in the mountains can be dangerous. Compound Sentence Recycling can protect the environment, _______ it can save money, too. Some things we have done are good for the earth _________ some are bad. We should do everything to protect it, ________ we’ll be punished and lose our home. people produce power from coal, _______ it is very dirty and causes acid rain . and while or but Grammar 连词 or, and, but , while 和 so 的用法 并 列 句 ①表示并列关系，动作的先后关系，用 ②表转折关系，用 ③表选择，用 ④表因果关系，用 ▲ 祈使句，and + 简单句 祈使句，or + 简单句 and（和，并且） but（但是）, while（然而） but 但是,表转折 while 然而,表转折，有对比的意思 or 或者. 否则,有警告意思 so 所以，因此 Grammar Compound Sentence Recycling can protect the environment, _______ it can save money, too. Some things we have done are good for the earth _________ some are bad. We should do everything to protect it, ________ we’ll be punished and lose our home. …people produce power from coal, _______ it is very dirty and causes acid rain . and while or but What will happen if we do not plant new forests ? The forests will become less and less. We cannot breathe without them. … Paragraph 2 These young men and women face many difficulties when they plant new trees. The weather may be very hot and dry or it may be very cold and wet. There are often many insects that bite these planters on their legs,arms and faces while they work. They carry heavy bags of small trees, and working in the mountains can be dangerous. Read paragraph 2 and answer. What difficulties do tree planters face when they plant trees? (1) The weather may be very hot and dry or it may be very cold and wet. (2) There are often many insects that bite these planters on their legs, arms, and faces while they work. (3) They carry heavy bags of small trees, and working in the mountains can be dangerous. Recycling can protect the environment, ______ it can save money, too. Some things we have done are good for the earth ______ some are bad. We should do everything to protect it, _____ we’ll be punished and lose our home. people produce power from coal, ______ it is very dirty and causes acid rain. Compound Sentence Grammar and while but or 2. They believe that in 50 years their little trees will become beautiful forests. in + 一段时间 表示 “在......之后”时，常用于一般将来时，用how soon 提问。 how long “多久” 对长度提问。/ 对 for/since + 时间 提问 how far “多远” 对距离提问 how often “多久一次” 对频率提问 how many times “多少次” 对次数提问 how much + 不可数名词 “多少” 对数量提问 / “多少钱” (价格） how many + 可数名词复数 “多少” 对数量提问 how old/ wide/ deep/ tall 多大/ 多宽/ 多深/ 多高 back 及时练习2 选用how的特殊疑问词组填空。 1. — _____ ______ do you use paper bags? — Sometimes. 2. — _____ ______ has your father worked in Beijing? — Since ten years ago. 3. — _____ ______ is the Yangtze River? — It’s 6, 300 kilometers. 4. — _____ _____ is your home to the People’s Hospital? — It’s an hour’s walk. 5. — _____ _____ times have you seen the movie Harry Potter? — Only once. How often How long How long How far How many back Would you like to be a __________ person? First, you ought to _________ the electricity when you leave a room. ________ said than done. Actions speak _________ than words. The train can ________ a top speed of 431 km per hour. greener shut off Easier louder reach Functions Paragraph 3 Tree planters are changing the world. They plant different types of trees so that birds and animals can live in the forests. Even though tree planting is very difficult, they love their work. They believe that in 50 years their little trees will become beautiful forests. Read paragraph 3 and answer. Why do they plant different kinds of trees? They plant different types of trees so thatbirds and animals can live in the forests. 3. You are bright green, but do not stop trying. stop + doing sth. 停止正在做的事 stop + to do sth. 停下来（目的是）去做另一件事 eg. When we meet our friends on the way, we should stop ______ hello to them. A. to say B. say A Read the passage and answer the questions on Page 50. Forests are the lungs of the earth. Without them, it cannot breathe. It needs its forests to remove carbon dioxide from the air and to make oxygen. In many countries, such as New Zealand, Canada, and Brazil, forests were cut down to provide wood to build houses. Many young volunteers around the world are working in their holidays to plant new trees to replace them. Summary We learn: 1. Some words: dry 2. Some phrases: provide sth. to do sth.; face difficulties; even though 3. Some sentences: (1)Without them, it cannot breathe. (2)They plant different types of trees so that birds and animals can live in the forests. We can: 1. Use the compound sentence correctly. 2. Realize the importance of the forest. 1.How do you understand “Forests are the lungs of the earth”? 2. What difficulties do tree planters face when they plant trees ? Forests can remove carbon dioxide from the air and make oxygen. (1)The weather may be very hot and dry or it may be very cold and wet. (2)There are often many insects that bite these planters on their legs, arms, and faces while they work. (3)They carry heavy bags of small trees, and working in the mountains can be dangerous. What will happen if we do not plant new forests? Discuss Homework 1. Read 1a aloud&Memorize the useful expressions and key sentences which we learn in this topic. 2. Finish Section D in your workbook. 3. Preview Unit 3 Topic 1-Section A. Thank you! 80901.305 $$