(
课件网) Save the trees UNIT 4 Getting ready & Reading Getting ready In this unit, we are going to talk about another of man’s best friends on Earth, trees. Use: pencil, chopsticks, tables, chairs, paper, etc. What can we get from trees How much do you know about trees Try the short quiz below. fruit branch leaf root Reading Look at the pictures on page 45. Then answer the question below. Trees take in harmful gases from the air and make oxygen for us to breathe. B Before you read Look at the pictures and the title of the interview on page 45. Then answer the question below. Many of the things in our daily lives come from trees. For example, paper, pencils, and chairs. 2 What can we make from trees Write down three examples. Reading Trees in our daily lives Rebecca wants to know more about trees and how they help us. She is interviewing Dr Jones about trees. produce against furniture convenient major Trees in our daily lives D1 Read the interview on page 45 and complete the chart. Trees in our daily lives Tress are major fighters against _____. They: keep the air _____. take in _____ from the air and produce oxygen. Trees make our lives _____. Many of the things(e.g.paper and pencils)in our daily lives _____. We also get fruit, oil and tea from trees. A lot of furniture is _____. air pollution cool and clean harmful gases more convenient very important made of wood D2 Why does Rebecca says “I can’t imagine a world without trees” Discuss this with your classmates. ★ pollution Imagine if we don’t protect the trees, What will happen If we don’t save the trees: Our environment will become bad such as air pollution. Lead to disaster such as sand storm and typhoon. People will get the disease. Not saving the trees is polluting the earth and our home. Our promises I promise to write on both sides of the paper! I promise not to cut down trees! I promise to plant more trees in the future! I promise not to use throwaway chopsticks! … Strategy study Using suffixes to guess meanings -ful Look at these two sentences. Do you know the meanings of “useful” and “harmful” Trees give us a lot of useful things. Trees take in harmful gases from the air. “Useful” and “harmful” both end in -ful. It is a suffix meaning “full of”. Can you guess the meanings of the following words hopeful helpful Can you give some more examples Homework 1.抄写单词短语。 2.模仿录音的语音、语调，朗读课文。 3.思考Comprehension D2的问题Why does Rebecca say “I can’t imagine a world without trees” 。 感谢聆听
