20xx春牛津深圳版英语九下unit3theenvironmentreadingppt课件

20xx春牛津深圳版英语九下unit3theenvironmentreadingppt课件内容摘要：

. ( )The greenhouse effect takes place — the Earth’s temperature increases. ( )People burn fuels such as petrol and coal and produce a lot of CO2. 1 2 3 4 6 5 7 Read and finish the following tasks. Task 2: Read the second part and plete the diagram. Cause Effect 1 Effect 2 Effect 3 Effect 4 We destroy nature by _____ ________________________ down huge areas of forests cutting ___________________ ______ bees worse. The greenhouse effect ___________ ___________ ___________ ___________ ___________ The homes of the animals that live in our forests are destroyed. _________ _________ _________ _________ _________ The surface of the soil is easily destroyed by rain. ______ take place and ____ ____________ _________ the environment. Floods even more damage is done to Task 3: Read the third part and plete the diagram. Cause Effect 1 Effect 2 People often ________________________________ _________, or ______________________________ use things once and then throw themthem away leave them on the ground as litter. ___________ ___________ ___________ This creates mountains of rubbish. __________________ __________________ This pollutes our land and seas. The words in italics explain the meanings of some words on page 35. Find these words to plete the sentences. Change their forms if necessary. (P 36) As a result of increase sea level surface C1 mountains is resulting in /results in increases in danger make a difference take action Complete the conversation below with the words from the box. Change their forms if necessary. (P 36) in danger make a difference increase take action result in C2 our world/the Earth The atmosphere around the Earth Replace the italicized words with information from the article on page 35. (P37) D1fuels such as petrol and coal The increasing temperature Cutting down trees pollution Read the article again and circle the correct answers. (P 37) D2 The writer gives an example of a bad habit that causes pollution. Can you name some other bad habits that cause pollution? (P 37) D3 Change and wash clothes every day. waste of food Spit everywhere. Always drive cars to other places. Fet to turn off lights when we leave the room. bad habits Our world is ________. We face many problems. The atmosphere around the Earth acts like _____________________. It ___ sunlight in and keeps ____ from getting out. Without the atmosphere, the Earth would be as _____________ as the Moon. However, when the atmosphere is polluted by _____, it will keep in ________ heat. This is。