(
课件网) 九年级 下册 教学课件 Unit 3 Oxford English Module 2 Environmental problems Period 1 Getting ready Reading (I) Getting ready 1 Look at the cartoon and answer the questions. What has Lo done What did Hi tell Lo to do Does Lo understand what Hi meant What did Hi mean when he told Lo to be greener What should a person do if he or she wants to be green He has painted himself green. He told Lo to be greener. No, he doesn’t. He meant that Lo should care more about the environment. 2 What do you know about … atmosphere What do you know about the greenhouse effect A1 What do you know about the greenhouse effect Match the first half of the sentences in column A with the second half in column B. Write the correct letters in the blanks. e f b d c a The gases cause the atmosphere to keep in too much heat from the Sun. The Earth is getting warmer and warmer. We call this the greenhouse effect. There is an atmosphere around the Earth. It controls the Earth’s temperature. However, we are polluting the Earth with harmful gases. 1 2 3 4 5 6 Read the following sentences. Read the sentences in A1 and answer the questions. 1 What’s around the Earth 2 What are people polluting the Earth with 3 What are the effects of the harmful gases 4 What do we call this The atmosphere. Harmful gases. They cause the atmosphere to keep in too much heat from the Sun, and the Earth is becoming warmer and warmer. The greenhouse effect. A2 What is the result of the greenhouse effect In groups, discuss this with your classmates. 3 Before you read Look at the article on page 35 and choose the best answer. The article is probably from a(n) _____. a advertisement b poster about the Earth Hour c environmental science book d comic book c Look at the pictures, the title, the introduction and the sub-headings of the article on page 35. Then answer the questions below. 1 What is the article mainly about 2 What problems does the article discuss 3 A consumer is someone who buys and uses things. Can you guess what a “green consumer” is Environmental problems. The greenhouse effect, cutting down forests and bad habits. A “green consumer” is someone who only buys and uses things friendly to the environment. Think and answer What does a green consumer usually do The world is _____. Main problem 1: _____ Main problem 2: _____ Main problem 3: _____ Solution: We need to _____ _____. Read the text and finish the chart. in danger The greenhouse effect The greenhouse effect Cutting down forests Bad habits take proper action Part 1 Part 2 Part 3 Part 4 d Match each picture with each part of the text. a b c e 4 While you read Why must people do something to protect the environment What are the main problems people face What should people do to protect the environment Read the text and answer the questions. Because our world is in danger. The greenhouse effect, cutting down forests and bad habits. People should become “green consumers”. ... ...
