Unit 1Reading课件 2025-2026学年 牛津上海版（使用本）（2007）英语九年级下册

1 Environment and life 1 Saving the Earth Reading 行业PPT模板http:///hangye/ 话题引入 A What do you know about ...? What do you know about 'global warming'? Match the two halves of these sentences. The first one has been done for you. A What do you know about ...? What do you know about 'global warming'? Match the two halves of these sentences. The first one has been done for you. 1 There is an atmosphere 2 This atmosphere controls 3 However, we are polluting 4 The atmosphere is changing 5 This heat will cause 6 The ice at the North and South Poles 7 Then the sea will rise and a will melt. b 'global warming'. c our atmosphere with harmful gases. d cause floods. e and keeping in too much heat from the Sun. f around the Earth. g the heat on the Earth. f g c e b a d The first paragraph of a piece of writing often tells you a lot about the content. Look at the title, the first paragraph, the headings and the pictures in Tony’s review on page 3. 5 1 What is the name of the book that is reviewed? Who are the authors? 2 The book is called a guide. What does this name suggest the book will do? 3 A consumer is anyone who buys and uses things. What do you think a green consumer is? 4 What do you think the main topic of the book is? The name of the book is The Young Green Consumer Guide, and the authors are John Elkington and Julia Hailes. A guide gives us information, help or instructions about something. This book will tell us how to be green consumers. He/She is someone who only buys goods that will not harm the environment. The main topic of the book is about goods that are harmful to the environment and goods that are safe for the environment. 6 Read through the passage on page 3 quickly and pay special attention to the headings. Then match the pictures with each part of the passage. 1 The greenhouse effect ____ 2 Damage to the ozone layer ____ 3 Destruction of the forests ____ 4 Bad habits ____ 5 How can we save the Earth? ____ a b c d e b c a e d 7 While you read This book says our world is in danger. It describes the various threats to the environment. The situation is so serious that we must do something to save the Earth. 8 Read the introduction and answer the following questions. E1 1 What does The Young Green Consumer Guide say about our world? 2 What does the book describe to us? 3 What do the writers think of the situation? 4 What do the writers think we must do? It says our world is in danger. It describes the various threats to the environment. It is so serious. We must do something to save the Earth. 9 The greenhouse effect The writers ask us to ‘imagine that the Earth is inside a kind of greenhouse with the atmosphere around it. The atmosphere acts like the glass: it lets sunlight in and keeps warmth from getting out. The atmosphere is essential for all living things. Without it, the Earth would be as cold and lifeless as the surface of the moon’. ‘The trouble is that our atmosphere is changing because we are polluting it with chemicals—in the form of gases—and it is keeping in too much heat!’ These gases, mainly carbon dioxide (CO2), are produced by burning fuels such as petrol. The greenhouse effect may cause the level of the sea to rise and flood cities and even whole countries. 10 Read the first part of the review. Put the following sentences in the correct order. ____ a Too much CO2 makes the atmosphere become thicker. ____ b The atmosphere cannot let the warmth out. ____ c The atmosphere lets the sunlight in. ____ d The Earth keeps too much warmth. ____ e The sunlight reaches the atmosphere of the Earth. ____ f The Earth becomes very hot. ____ g People burn fuels like petrol and produce a lot of CO2. 1 2 3 4 5 6 7 11 Read the first part again. Complete the following paragraph with proper words. acts greenhouse lets warmth lifeless chemicals much effect level flood 12 Damage to the ozone layer The writers tell us that ‘ozone is a gas which occurs 20 to 50 km above the ground. It forms an essential protective layer around the Earth. Without it, the Sun would burn us up. We are making holes in the ozone layer, mainly by using chemicals called CFCs. We use these in fridges and spray cans, and to make plastic items such as fast food boxes. 13 Read the second part of the review. Complete the illustration with proper words or numbers. E4 8-4 (1)_____ to (2)_____ km above the ground a (3)__________ layer that prevents the Sun from (4)______________________ This is a (5)__________ in the layer which is mainly caused by (6)__________. They are used in (7)__________ and (8)__________, and to make plastic items like (9)_________. 20 50 protective burning us up hole CFCs fridges spray cans fast food boxes 14 Destruction of the forests The burning and cutting down of the forests is making the greenhouse effect worse because trees take in CO2. It also causes soil erosion and flooding, as well as destroying the homes of people and animals that live in the forests. 15 Read the third part. Complete the cause-effect chart. E5 Cause Effect the burning and cutting down of the forests soil erosion flooding destroying the homes of people and animals that live in the forests Read the third part again. Tell why the burning and cutting down of the forests causes so many bad effects. E6 Because trees take in CO2. The burning and cutting down of the forests makes the greenhouse effect worse.... making the greenhouse effect worse 16 Bad habits Many of our habits cause pollution, especially our habit of using things once and then throwing them away. This creates massive mountains of rubbish. We do not know what to do with the rubbish and it pollutes our land and sea. For example, people throw away as many as seven billion drink cans in Britain each year. That is enough to reach from the Earth to the moon. 17 Read the fourth part of the review. Think about these questions. E7 1 What is the fourth part mainly about? 2 What kind of habit is the most serious to the environment? 3 What is the result of this bad habit? 4 Why did the writers give the example of the British throwing away 7 billion drink cans every year? 5 Where is the example probably from? It is about the bad habits that cause pollution. The habit of using things once and then throwing them away. It creates massive mountains of rubbish. Because they wanted to tell us how seriously our bad habits affect the environment. It may be from The Young Green Consumer Guide. 18 How can we save the Earth? The book is asking us to become ‘green consumers’. That means we should only buy and use environmentally friendly goods so that we can save the Earth. These goods will not damage the environment. Let’s be green consumers and enjoy living a better life on the Earth! 19 Read the last part of the review. Think about these questions. E8 1 Find the topic sentence of this review in this part. 2 Why did the writers tell us to do so? 3 What is the writers’ suggestion to all of us? 4 Can you give any examples of environmentally friendly goods? We should only buy and use environmentally friendly goods so that we can save the Earth. Because environmentally friendly goods do not damage the environment. To be green consumers and enjoy living a better life on the Earth! 20 Use the words from C1 to complete these sentences. Change the forms if necessary. C2 1 That planet is probably _____________. 2 Her dress is long enough to _____________ the floor. 3 Careless drivers are a _____________ to the lives of others. 4 The government plans to spend a large amount of money protecting our city’s _____________ from pollution. 5 Rainfall most often _____________ in the south of China. 6 Water from the storm _____________ the village yesterday. lifeless reach threat environment occurs flooded 21 1 The covering of ozone around the Earth protects us from the Sun. 2 In some cities, many people wear masks over their noses and mouths to protect themselves from the dangerous and dirty things in the air. 3 The mixture of gases around our planet is essential for all living things. 4 We use things like gas, oil, petrol and coal to provide us with heat and power. 5 Floods cause harm to the small village every year. Find these words in the review, work out their meanings, and use them to replace the italicized words in these sentences. C3 atmosphere fuels layer damage pollution layer pollution atmosphere fuels damage 22 Comprehension Replace the italicized words with information from the review. The first one has been done for you. D1 1 The writers compare the atmosphere to it. it = the glass 2 They say we are polluting it with gases. 3 The gases come from burning them. 4 It protects us from the Sun. 5 The damage to the ozone layer is caused by them. 6 The burning of the forests makes it worse. 7 This habit creates a huge amount of rubbish. it = the atmosphere them = fuels (such as petrol) it = The ozone layer them = CFCs it = the greenhouse effect This habit = Our habit of using things once and then throwing them away 23 Based on your reading of the review, choose the correct answer to complete each statement below. D2 1 Because of pollution, ______. a not enough sunlight is reaching the Earth b not enough heat is leaving the Earth 2 More CO2 in the atmosphere will cause the sea level to ______. a rise b fall 3 If we use fewer CFCs, the ozone layer will be ______. a protected b damaged 24 4 If there are more trees, the amount of CO2 in the atmosphere will be ______. a greater b smaller 5 Rubbish is a serious problem, but we have ______. a solved it b not solved it 6 The book is asking ______. a young people to do something to help protect the environment b more young people to become consumers 25 Read the book review again. Think about more ways that we can do to help improve the environment around us. E9 26 $