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课件网) Unit 2 Saving the Earth Topic 3 Section D 学习目标 1.能熟悉并正确运用本课时的重点单词和短语 2.能进一步巩固复合从句 3.能够谈论森林的重要性 Forests are the lungs of the earth. Remove carbon dioxide from the air Make oxygen Read paragraph 2 and answer. What difficulties do tree planters face when they plant trees (1) The weather may be very hot and dry or it may be very cold and wet. (2) There are often many insects that bite these planters on their legs, arms, and faces while they work. (3) They carry heavy bags of small trees, and working in the mountains can be dangerous. ( ) 1. Help others whenever you can _____ you’ll make the world a nicer place to live in. A. or B. and C. but D. while ( )2. Cross the road carefully, _____ you’ll keep yourself safe . A. so B. or C. but D. and ( ) 3. Hurry up, _____ you’ll be late for the concert . A. or B. so C. but D. and ( ) 5. I always enjoy visiting London, _____ I wouldn’t like to live there. A. because B. so C. but D. and ( )6. There are many sports lovers in his office. Some love climbing, ____ others enjoy swimming. A. Or B. for C. while D. so B D A C C Functions Would you like to be a _____ person First, you ought to _____ the electricity when you leave a room. _____ said than done. Action speak _____ than words. The train can _____ a top speed of 431 km per hour. greener shut off Easier louder reach Reading Practice decide which of the following sentences is true“T”or false“F”. 1. Forests are the hearts of the earth. ( ) 2. In many countries, forests were cut down to make money.( ) 3. These young men and women face many difficulties when they plant new trees. ( ) 4. Even though tree planting is very difficult, they love their work.( ) T F T F Paragraph 2 These young men and women face many difficulties when they plant new trees. The weather may be very hot and dry or it may be very cold and wet. There are often many insects that bite these planters on their legs,arms and faces while they work. They carry heavy bags of small trees, and working in the mountains can be dangerous. Read paragraph 3 and answer. Why do they plant different kinds of trees They plant different types of trees so thatbirds and animals can live in the forests. Paragraph 3 Tree planters are changing the world. They plant different types of trees so that birds and animals can live in the forests. Even though tree planting is very difficult, they love their work. They believe that in 50 years their little trees will become beautiful forests. Right or Wrong Throw the rubbish here and there. Don’t spit in a public place. Draw a beautiful picture on the public walls. Don’t throw things away if they can be reused. Go to school by bike instead of by bus. Collect the rubbish and try to sort it. Pour dirty water into rivers directly. Turn off the lights when you go out. Example Pollution Water Pollution Soil Pollution Air Pollution Noise Pollution Reason: Factories ... ...
