Unit 2 Saving the earth. Topic 1 SectionC 课件 - 2025-2026学年仁爱科普版（2012）九年级英语上册

Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems . Section C Learning Objectives At the end of the class, we’ll be able to... 1.read, understand and use the following words and phrases: deaf ，print，recently, sentence, go deaf, do harm to/be harmful to, lose one’s hearing/ have hearing loss, no better than, 2. get the main idea, structure and more details by skimming, scanning and intensive reading. 3. write a passage about pollution and realize the harm of the pollution . Speak out the names of the pollution. air pollution light pollution litter water pollution soil pollution noise pollution Pre-reading noise pollution 1.Noise is a sort/kind of pollution. 2.There are all sorts/kinds of noise. They make us uncomfortable and unpleasant. n. 种类；v. 把……分类 adj. 使人不舒服的 adj. 令人不快的 Pre-reading noises made by Let’s write down the things that can make noise. piano bus cat wind plane dog loud pop music machine car ............. Pre-reading Has noise pollution caused you any problems? If so, share your feelings with your classmates. 1.I think noise makes me not sleep well at night. 3.Noise makes me feel uncomfortable and unpleasant. 2.Noise can make me become ill. 4 .……… Pre-reading Underline the topic sentence of the passage in 1a. Give a proper title to this passage. Try to find out the topic sentence to understand the content of a paragraph. Skimming 1a and complete the following tasks. Task 1 Noise is also a kind of pollution and is harmful to human’s health. Noise Pollution While-reading 主旨大意题的解题方法 一、找主题句（topic sentence) 快速阅读文首、文尾，或每段的首句和尾句等，搜索主题线索和主题信息。 二、找文章的标题(the title) 快速阅读文章的各段，找出每段的主题句的关键词，综合得出文章的标题。 While-reading In today's world, almost everyone knows air pollution is harmful to people's health. However, not all people know noise is also a kind of pollution and is harmful to humans' health. Paragraph 1 is harmful to+n. =do harm to+n. 对......有害，伤害...... a. People often ____ ______. b. People often feel ____________ and __________. c. People may become _____ or _____. d. Your point: _____________________________. Scanning 1a and finish the exercise carefully. How does noise harm people’s health? While-reading Task 2 Tip1:细节理解题的解题方法： 寻读法：画出题干中的关键词语，然后在 文章中找出可能包含所需信息的段落或句子。 People who work and live in noisy conditions often go deaf. For example,many of the workers who print newspapers and books lose their hearing.Quite a few people living near airports also have hearing loss.Recently,it was reported that many teenagers in America can hear no better than 65-year-old people do, because these young people always listen to loud pop music. Paragraph 2 no better than=as badly /weakly as 和......一样糟糕/差 Making a loud noise in public is also a kind of pollution. It not only disturbs others but also does great harm to people's hearing. Cars and machines also produce too much noise.Such pollution makes people feel uncomfortable and unpleasant,and it can even cause them to become sick or deaf.Nowadays,many countries are trying to solve all sorts of environmental problems,including noise pollution. Paragraph 3 a. People often ____ ______. b. People often feel ____________ and __________. c. People may become _____ or _____. d. Your point: _____________________________. go deaf uncomfortable sick unpleasant deaf Scanning 1a and finish the exercise carefully. How does noise harm people’s health? While-reading Task 2 3. Which phrase has the same meaning as “is harmful to”? 4. Which sentence shows that many teenagers’ hearing in America is not good? 5. Why is the hearing of many young Americans not good? Task 3 Read the passage carefully and answer the questions. “does harm to”. Many teenagers in America can hear no better than 65-year-old people do. Because they always listen to loud pop music. While-reading Tip2:词义猜测题的解题方法： 1.通过定义、释义猜测词义； 2.通过同位、并列关系猜测词义； 3.通过生活常识猜测词义。 1. produce A. to hurt someone 2. deaf B. a type or a kind 3. print C. not be able to hear 4. harm D. to grow or make something 5. sort E. to put words or pictures onto paper using a machine Circle the words and match the phrases with the words. Task 4 While-reading Tip2:词义猜测题的解题方法： 1.通过定义、释义猜测词义； 2.通过同位、并列关系猜测词义； 3.通过生活常识猜测词义。 People who work and live in noisy conditions often go deaf. 在嘈杂的环境中工作和生活的人容易变聋。 定语从句 e.g. Beethoven was deaf. 2.go deaf 变聋 e.g. He _____ _____ because of the traffic accident. went deaf 1.deaf adj. 聋的 …many of the workers who print newspapers and books lose their hearing. 很多印刷报纸和书籍的工人丧失听力。 定语从句 e.g. Look! The man is printing something. 3.lose one’s hearing=have hearing loss 丧失听力 a printer 2.hearing n. 听力，听觉 1.print v. 印刷 Read the passage again and find different forms of words in the passage. 1.Lose---- 2.noise--- 3.pollute--- 4.comfortable--- 5.pleasant--- 6.hear--- 7.harm--- 8.health--- loss noisy pollution uncomfortable unpleasant hearing harmful healthy Task 6 While-reading a. Not all people know noise is also a kind of pollution. _____ ________ know(s) noise is a kind of pollution ____ ______. b. Many teenagers in America can hear no better than 65-year-old people do. In America, many teenagers’ hearing is ____ _____ ____ 65-year-old people’s. Change the following sentences into the ones that have the same meanings. Not everyone /some people as well as weak as Task 5 Post-reading Noise is a kind of _________ (pollute). Cars and machines produce too much noise. It makes people feel ________________ (comfortable) and __________ (pleasant). It also does great ______ (harm) to people’s _________ (hear). Noise is very ________ (harm) to human’s _______ (healthy). pollution uncomfortable unpleasant harm hearing harmful health 2 Complete the following passage with the correct form of each word. Post-reading Article Structure Noise pollution Noise is a kind of pollution and is harmful to humans’ health. Working and living in noisy conditions can make people go deaf. Making a loud noise in public and its harm Let’s find the structure of the passage together. Post-reading One possible version: Air pollution is becoming more and more serious in today’s world. Some chemical factories produce terrible gas and make the air bad. Buses and cars also produce waste gas. In our daily life, burning gas, oil and coal also creates air pollution. The air pollution may cause a lot of problems. It is harmful to people’s health. It can cause breathing problems, sore eyes and even cancer. It can also harm the plants, and the farmers will get less harvest. Luckily, the government has tried many ways to solve the problem, such as making laws to prevent the factory from polluting the air. Letʹs write a report about pollution ….Pollution 1.What is … pollution? 2.What makes the ….. pollution. 3.What problems does it cause? 4. What can be done to solve these problems? Post-reading 文章结构合理，包含所有要点。 （3分） 有用到本课学过的短语和句子。 （2分） 时态使用正确。 （2分） 句子表述正确，没有单词拼写和语法错误。 （3分） 运用连词，上下文连贯。 （2分） 圈出你喜欢的一些句子，再给ta一些建议吧。 内容切合主题 （3分） 评价标准 summary We learn: 2. get the main idea, structure and more details by skimming, scanning and intensive reading. 3. write a passage about pollution and realize the harm of the noise pollution . We can: 1.read, understand and use the following words and phrases: uncomfortable, unpleasant, sort, environmental, including, onto.go deaf, do harm to/be harmful to, lose one’s hearing/ have hearing loss, no better than, cause sb. to do sth Homework: 1. Read new words and phrases. 2. Retell passage according to the key words. 3. Write a passage about pollution. Thank you. Lavf57.62.100 86831.68 $$