Unit 8 Welcome to the unit 课件 2025-2026学年译林版英语八年级下册

Unit 8 A green world Welcome to the unit 23021 To master the new words and phrases. 01 学习目标 To talk about reducing pollution and the biggest pollution problem in your hometown. 03 To learn about different types of pollution. 01 23021 Lead in 23021 soil pollution noise pollution air pollution water pollution Do you know what types of pollution are shown in the pictures? What are the causes of these kinds of pollution? Look and say 新课讲授 23021 soil pollution factory waste too many farm chemicals rubbish heavy metals 23021 noise pollution traffic noise factory machines building work noise loud music and parties 23021 air pollution factory smoke car exhaust (废气) burning coal and oil forest fires 23021 water pollution dirty water from factories dirty water from homes farm chemicals oil leaks (泄露) 23021 Type Causes Soil pollution Chemical waste Other rubbish from humans (1) _ too many trees Noise pollution Noise from (2) _, trucks and buses on the road Noise from building work Air pollution Burning of unclean fuels (3) _ Water pollution Chemicals poured into rivers and lakes (4) _ The Class 1, Grade 8 students are learning about pollution. Listen to the introduction to four types of pollution and fill in the blanks. Cutting down cars Smoke from factories Wastewater Listening 23021 Language points Chemicals poured into rivers and lakes 这里是过去分词短语作后置定语,用来修饰前面的名词chemicals。 名词chemicals和动词pour之间是被动关系 —— 化学物质是"被倾倒"的对象,因此用过去分词poured来体现被动。 23021 chemical adj. 化学品的;化学的 c.n. 化学制品 e.g. We learn chemical knowledge in science class. 我们在科学课上学习化学知识。 Some chemicals in the river are bad for fish. 河里的一些化学制品对鱼有害。 拓展:n. chemistry 化学(学科)chemist 化学家;药剂师 23021 pour vt. & vi. 倾倒,倒出;倾泻 pour ... into ... 把……倒入…… pour down(雨)倾盆而下 e.g. Please pour some water into the glass. 请往杯子里倒些水。 The rain poured down all night. 雨下了一整夜。 23021 After learning about the causes of the four types of pollution, how can we reduce pollution? Free talk 23021 Millie and Daniel are talking about reducing pollution. Listen to the conversation and complete the table below. Listening Air pollution Water pollution 1. _to school with others. 2. Take_. 3. _. 1. Use _ cleaning products. Share a ride the bus Plant more trees more eco-friendly 23021 Millie: What can we do to reduce air pollution? Daniel: It’s a good idea to share a ride to school with others or take the bus. Millie: Yes. We can also ride a bike if we live close. Daniel: Good idea. We can plant more trees. Millie: I agree. And what about water pollution? Some rivers don’t look clean and clear! Daniel: We should use more eco-friendly cleaning products. Millie: Yes. That will reduce water pollution. Reading 23021 Millie: What can we do to reduce air pollution? Daniel: It’s a good idea to share a ride to school with others or take the bus. Millie: Yes. We can also ride a bike if we live close. Daniel: Good idea. We can plant more trees. Millie: I agree. And what about water pollution? Some rivers don’t look clean and clear! Daniel: We should use more eco-friendly cleaning products. Millie: Yes. That will reduce water pollution. Role-play 23021 How can we help reduce soil pollution and noise pollution? Discussion sort garbage correctly put old batteries in harmful waste bins plant trees and grass in school never litter when playing outdoors don’t shout loudly in public places use headphones when listening to music tell friends not to play noisy toys make posters to tell others noise is harmful 23021 Work in pairs and talk about how we can reduce pollution. Use the conversation below as a model. A: What can we do to reduce ... pollution? B: It’s a good idea to ... A: Yes. We can also ... B: Good idea. We can ... A: I agree. And what about ... pollution? ... B: We should … A: Yes. That will reduce ... pollution. Speaking 23021 Which type of pollution is the biggest problem in your hometown? Explain. In my hometown, air pollution is the biggest problem. The main reasons are the large number of cars on the road, which produce a lot of exhaust fumes, and some factories that burn unclean fuels like coal. In winter, the use of coal for heating also makes the air quality worse, often leading to smog. To improve this, we can take the bus or ride bikes more often instead of driving, and the government should encourage factories to use cleaner energy like solar power. Further thinking 23021 当堂检测 根据句意及提示完成下列句子。 1. Dr James often explains the _ (化学的) questions to us patiently. 2. The world-famous engineer is busy designing a new type of _ (环保的) bicycle. 3. The plane will have larger wings and burn less _ (燃料). 4. It is believed that we'll plant more trees to stop the _ (土壤) from losing. 5. To avoid hitting the _ (卡车), he ran into the wall and his arm was badly hurt. chemical eco-friendly fuel soil truck 23021 Homework Search the internet for more information about pollution. Preview Unit 8 Reading. 23021 EVCapture5.0.1软件录制 Lavf58.33.100 本视频由湖南一唯信息科技开发的EV录屏软件录制,www.ieway.cn Blues 89444.18 Blues 52061.32 $