Unit 2 Saving the Earth Topic 1 Section D课件- 2025-2026学年仁爱科普版（2012）英语九年级上册

Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems. Section D Learn some new words and phrases. Words: coal, create, blood, planet Phrases:in many ways, high blood pressure, as well Be able to use some useful expressions. With the increase in population and the development of industry, litter is everywhere. There are many kinds of pollution around us, air pollution light pollution litter water pollution soil pollution noise pollution including It _____ (be) a mess in the past. Kangkang _______ (go) there two years ago. The government ___________ (solve) the problem. Everything _____________ (change). was went has solved has changed Simple past 强调过去 Present perfect 强调现在 Work on 1a Read 1a and choose the best answer. ( ) 1. What is the passage mainly about? A. Air pollution B. Light pollution C. Litter. D. All sorts of pollution ( ) 2. ________ destroy(s) the soil. A. Chemicals B. Weather C. Noise D. Industry ( ) 3. How do people feel after they work in strong light for a long time? A. Excited. B. Happy. C. Terrible. D. Sad. Read through Sections A-C and fill in the blanks with the correct words. Grammar I _____ (go) there two years ago. It ______ (be) difficult for me to breathe. What _________________ (cause) your cough? How have you ______ (be) ? Luckily, the government has ___________ (solve) the problem. been was caused solved went Simple Past ＆Present Perfect para.1 Read para.1 and answer the questions. 1.Read and finish the mind-map. are bad for 2.Read and understand the first sentence. Then complete the second one. They are bad for our health in many ways. They ____________to our health in different ways. Oh, what a _______! There were several chemical factories _______ waste water into the stream. What was ______, the factory made too much noise… Noise is _________ to human’s health. People who work and live in noisy conditions often ______ deaf. …many teenagers in America can hear no ______ than 65-year-old people do, … …does great _______ to people’s hearing. Functions shame pouring worse go harmful better harm para.1 Read para.1 and answer the questions. pollution air pollution soil pollution noise pollution light pollution 1.Read and finish the mind-map. are bad for people’s health 2.Read and understand the first sentence. Then complete the second one. They are bad for our health in many ways. They ____________to our health in different ways. do harm / are harmful 对…有坏处 be bad for be harmful to do harm to para.2 Read para.2 and answer the questions. burning gas coal 1.Read and finish the mind-map. effect cause Noise pollution can make people deaf. For example, people many lose their hearing if they work in a noisy place for a long time. Too much noise can cause high blood pressure as well. Working in strong light for a long time may cause some kinds of illnesses. It makes people feel terrible and is expecially bad for eyes. With less pollution, our planet will become greener and our health will be better. Let’s be greener people. para.2 Read para.2 and answer the questions. air pollution burning gas oil coal 1.Read and finish the mind-map. sore eyes cause breathing problems effect para.3 Read para.3 and answer the questions. chemical 1.Read and finish the mind-map. cause effect: Litter is everywhere. the development of industry Farmers use too many chemicals. effect: ( ) 1. What is the passage mainly about? A. Air pollution. B. Light pollution. C. Litter. D. All sorts of pollution. ( ) 2. ________ destroy(s) the soil. A. Chemicals B. Weather C. Noise D. Industry ( ) 3. How do people feel after they work in strong light for a long time? A. Excited. B. Happy. C. Terrible. D. Sad. How well do you know Sections A-C? Now do the following tasks and check. A D C Read 1a and choose the best answer. Pollution Cause Effect air pollution burning_____, _____ and _____ _____ eyes and _________ problems soil pollution _____ is everywhere, use too many __________ ______ environment and _________ food noise pollution _______________ place for a long time make people _____ and cause ____________ pressure light pollution _______ light kinds of ________, bad for ________ gas oil coal sore breathing litter chemicals dirty unhealthy work in a noisy deaf high blood strong illnesses eyes Read the passage and complete the table on Page 34. Burning gas, oil and coal creates air pollution. It can cause sore eyes and breathing problems. With the increase in population and development of industry, litter is everywhere. It makes our environment dirty. People put lots of litter into the land. In the fields, farmers use too many chemicals (which destroy the soil). Soil pollution causes unhealthy food. 16 1. They are bad for our health in many ways. They ____________to our health in different ways. 2. People may lose their hearing if they work in a noisy place for a long time. If people work in noisy conditions for a long time they may have ______________. 3. Noise pollution can make people deaf. People may ______ deaf _____________ noise pollution. hearing loss do harm go because of / are harmful Read and understand the first sentence. Then complete the second one. Noise pollution can make people deaf. For example, people many lose their hearing if they work in a noisy place for a long time. Too much noise can cause high blood pressure as well. Working in strong light for a long time may cause some kinds of illnesses. It makes people feel terrible and is expecially bad for eyes. With less pollution, our planet will become greener and our health will be better. Let’s be greener people. 18 语法关 Pollution Cause Effect air pollution burning_____, _____ and _____ _____ eyes and _________ problems soil pollution _____ is everywhere, use too many __________ ______ environment and _________ food noise pollution _______________ place for a long time make people _____ and cause ____________ pressure light pollution _______ light kinds of ________, bad for ________ gas oil coal sore breathing litter chemicals dirty unhealthy work in a noisy deaf high blood strong illnesses eyes Read the passage and complete the table on Page 34. 20 1. They are bad for our health in many ways. They ____________to our health in different ways. 2. People may lose their hearing if they work in a noisy place for a long time. If people work in noisy conditions for a long time they may have ______________. 3. Noise pollution can make people deaf. People may ______ deaf _____________ noise pollution. hearing loss do harm go because of / are harmful Read and understand the first sentence. Then complete the second one. 21 There are many __________ of pollution around us. They are ______ for our health in many ways. Air pollution causes _____ eyes and __________ problems. ______ makes our environment dirty. Soil pollution ________ the soil and _______ unhealthy food. Noise pollution makes people ______ and causes high blood pressure. Light pollution is bad for _____ and causes some kinds of __________. With less pollution, our planet will become _______ and our health will be better. Let’s be greener people. kinds/sorts bad sore breathing Litter destroys causes deaf eyes illnesses greener Complete the passage according to 1a. 22 86387.555 $