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Unit 3 Save Our Earth


Unit 3 Save Our Earth
---Environmental Problems

Unit 3 Save Our Earth
? Getting Started ? 1.Pollution is one of the most serious environmental problems. Can you list several categories of pollution? ? ---water/air/noise/magnetic/white(foamed plastic products) pollution… ? 2.Can you find out some other environmental problems? ? ---sandstorm/global warming/greenhouse effect…
?

Unit 3 Save Our Earth
Answer to Getting Started
1.---D (air pollution) 2.---A (magnetic pollution) ? 3.---C (water pollution) 4.---B (noise pollution) ? 5.---F (global warming) 6.---E (sandstorm)

? Listening
? 1.B (forest) 2.F (soil) ? 4.H (destruction) 3.D (starvation) 5.E (care)

? Speaking ? Water pollution in Xiang River

Unit 3 Save Our Earth

? Sources: ? (1).chemical wastes from factories have been poured into; ? (2).waste products both from people and animals have been vented into; ? (3).plastic products and styrofoam products have been thrown into; ? (4).Ignorant citizens have planted vegetables on both banks.

Unit 3 Save Our Earth
? Effect on people’s lives
? (1).Water from Xiang River can’t be drunk directly both for people and animals; ? (2).In some heavily-polluted area, river food (fishes,shrimps…) could be poisonous; ? (3).The beautiful scenary of Xiang River has been destroyed.

Unit 3 Save Our Earth
? Measures
? (1).Initiate general education on pollution to raise public awareness; ? (2).Launch a campaign to clear up Xiang River; ? (3).Shut down some chemical factories; ? (4).Give those individuals who pollute Xiang River severe punishment.

Unit 3 Save Our Earth
? Reading
? Language Points
? ? ? ? ? ? ? ? 1.business (n.) (1):deal,commerce Eg:Mr. Jones is in the business of selling cars. My father has gone to Shanghai for a business trip. (2):thing,matter Eg:Mind your own business! have no business doing sth=have no right doing sth Eg:Parents have no business interfering their children’s marriage.

Unit 3 Save Our Earth
? ? ? ? ? ? ? 2.doggie: little dog Eg:dog---doggie,pig---piggy,cat---kitty/kitten watchdog/bulldog/shepherd dog/Tibetan mastiff… You are a lucky dog. Every dog has his day. Love me,love my dog! A biting dog seldom barks.

? 3.regularly: usually,for a fixed time ? regular-irregular(adj.) ? Eg: You should listen to BBC or VOA regularly if you want to improve English listening.

Unit 3 Save Our Earth
? 4.subject…to (vi.) ? Eg:A disciplined army should subject all the soldiers to their country. ? 5.allergic (adj.) ? be allergic to… ? Eg:I am allergic to panicillin. ? 6.sake:reason ? for one’s sake=for the sake of sb ? Eg:I promise for the sake of the Lord.

Unit 3 Save Our Earth
? Reading
? Answer to Ending Match ? 1.Dogs wouldn’t hurt them,---E ? 2.Dog owners should not make the public like the dogs,---D ? 3.People complain about dog pollution,---F ? 4.I teach my dog to clean the public---C ? 5.I advise dog owners not to walk their dogs on the street,---B

Unit 3 Save Our Earth
? Speaking
? A debate---Is it necessary to save those endangered animals and plants or not? ? The Positive side—Necessary! ? The con side—Not necessary!

Unit 3 Save Our Earth
? ? ? ? ? ? ? ? The basis of argument Positive side: (1) keep balance of ecology (2) human beings can benefit from the behavior in long run. … Con side: (1)follow natural pricinples---survival of the fittest in natural selection. (2) the activity is costly.

? …

Unit 3 Save Our Earth
? Answer to Developing Vocabulary ? P.24 4
? 1.expenses ? 2.responsible ? 3.recycle ? 4.lower ? 5.awareness ? 6.estimated ? 7.recover

Unit 3 Save Our Earth
? Writing ? P.25 ?

5

1.refillable ? 2.both sides ? 3.recycled ? 4.hand dryer ? 5.clean ? 6.low-flow ? 7.full


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