1、What kinds of pollution do you know?Air pollution,water pollution,noise pollution,soil pollution and so on1In big cities,cars and buses have polluted the air.It makes people have health _.problemsprblmz2The rivers and lakes are_because the factories have polluted the water.deadded3People have cut do
2、wn millions of trees.The rain takes away the earth.So forests have become _.desertsdezts4The ozone layer can protect the earth from harmful _.radiation臭氧层臭氧层redien辐射辐射5Carbon dioxide(CO2)formed a _ around the earth and the heat cant escape.blanketblkt 二氧化碳二氧化碳 6The greenhouse effect causes the level
3、 of the sea to _ and the climate of the earth to change.rise温室效应温室效应the level of the searaz7 fewer treesfactory pollutiontraffic pollution the ozone layermore carbon dioxideCan you match them?8Task1:Fast reading Choose suitable titles for Paragraphs 2-6.Then write it down in front of each paragraph.
4、（P40 1b 1）A.Traffic pollution B.Factory pollution C.Fewer trees D.The ozone hole E.More carbon dioxideFind the key words or the same words in the paragraph（文段）（文段）9Choose suitable title for each paragraph.Then write it down in front of each paragraph._ All over the world,people have cut down million
5、s of trees.When it rains or when the wind blows,the earth is taken away.Forests have become deserts,so many kinds of animals and plants are disappearing.Fewer TreesA.Traffic pollution B.Factory pollution C.Fewer trees D.The ozone hole E.More carbon dioxide10_ In big cities,cars and buses have pollut
6、ed the air.Now many people in cities have health problems.Traffic PollutionA.Traffic pollution B.Factory pollution C.Fewer trees D.The ozone hole E.More carbon dioxide11_Factories have also polluted the land and the water.As a result,many rivers and lakes are now dead.Factory PollutionA.Traffic poll
7、ution B.Factory pollution C.Fewer trees D.The ozone hole E.More carbon dioxide12_ Around the earth,theres a special kind of oxygen called“ozone”(O3).It is important to the earth.But now air pollution is destroying it and making a very big hole in the ozone layer.Too much harmful radiation from the s
8、un passes through the hole and reaches the earth directly.This is very dangerous because this kind of radiation can cause cancer.The ozone hole直接地直接地A.Traffic pollution B.Factory pollution C.Fewer trees D.The ozone hole E.More carbon dioxide13 _ Carbon dioxide(CO2)in the air has increased a lot.It m
9、ainly comes from burning oil,coal and wood.This has formed a blanket around the earth.The heat from the sun cant escape so the temperature is rising.This is called“the greenhouse effect”.It causes the level of the oceans to rise and the climate of the earth to change.More Carbon DioxideA.Traffic pol
10、lution B.Factory pollution C.Fewer trees D.The ozone hole E.More carbon dioxide14Listen to 1a to know more about the text.How many problems are mentioned(提到提到)?15Task2：Intensive readingRead 1a carefully and choose the answers.(P40 1b 2-5)Find the key words and pay attention to the topic sentence.162
11、.What does our planet mean here?A.The sun.B.Mars.C.The moon.D.The earth.The earth is 4.6 billion years old.We humans have lived on the earth for only 35 000 years,but during this period,we have changed our planet a lot in many ways.Some things we have done are very good for the earth while others ar
12、e bad.173.In the passage,blanket refers to _.A.carbon dioxide around the earth B.the ozone layer in the sky C.the forests around the world D.pollution all over the world _ Carbon dioxide(CO2)in the air has increased a lot.It mainly comes from burning oil,coal and wood.This has formed a blanket aroun
13、d the earth.The heat from the sun cant escape so the temperature is rising.This is called“the greenhouse effect”.It causes the level of the oceans to rise and the climate of the earth to change.184.The word it in Paragraph5 refers to _.A.CO2 B.O3 C.O2 D.H2O_ Around the earth,theres a special kind of
14、 oxygen called“ozone”(O3).It is important to the earth.But now air pollution is destroying it and making a very big hole in the ozone layer.Too much harmful radiation from the sun passes through the hole and reaches the earth directly.This is very dangerous because this kind of radiation can cause c
15、ancer.195.What is the best title for this passage?A.Environmental Problems B.Pollution on the Earth C.Hope for the Future D.The Greenhouse Effect All these problems are very serious,so we must do something now.Dont forget the conclusion！（结论）！（结论）20Write down only the key words when taking notes.1c C
16、omplete the notes according to 1a.21ProblemEffect on the environmentfewer trees forests become deserts,animals and plants disappeartraffic pollution greenhouse effect,level of oceans rising,climate change_pollute air,_problemspollute _,rivers and lakes_ reaches the earth,cause_ factory pollution ozo
17、ne hole more CO2cars and buseshealthland and waterdeadharmful radiationcancer22232.Surf the Internet to collect more information about environmental problems and effects.Then discuss the information in groups and take notes.3bine the key points in 1c and 2 to form a short passage and pay attention t
18、o the proper linking words.Task for out of class241.带走带走2.臭氧层臭氧层3.二氧化碳二氧化碳4.温室效应温室效应5.指的是指的是6.海平面海平面7.直接到达直接到达 地球地球 take awaythe ozone layercarbon dioxidethe greenhouse effectrefer tothe level of the oceansreach the earth directly251.Read 1a.2.Memorize the useful expressions and key words which we l
19、earn today.3.Finish Section C in your workbook.4.Review Section A-C and preview Section D.26fun reading1.what does Earth Hour mean in Chinese?A.世界时间 B.地球1小时 C.当地1小时 D.土地1小时2.What does 60 in the picture refer to?A.60 hours B.60 minutes C.60 seconds D.60 days3.When was the event first started?A.in 200
20、7 B.in2016 C.in 2017 D.in 201827 take away 拿走，取走拿走，取走我不喜欢这些书，请把它们拿走我不喜欢这些书，请把它们拿走I dont like these books.Please take them away.2.when the wind blows,the earth is taken away.代词放代词放中间中间风吹的时候，把泥土带走了。风吹的时候，把泥土带走了。28refers to 谈及，说起；指的是谈及，说起；指的是我们的我们的 星球指的是地球。星球指的是地球。Our planet refers to the Earth.4.In th
21、e passage,blanket refers to _.在文在文段里，段里，blanket指的是指的是29 while conj.而而,然而然而,相当于相当于but,表示对比表示对比他是老师而我是司机。他是老师而我是司机。He is a teacher,while I am a driver.1.Some things we have done are very good for the earth while others are bad.30 It causes the level of the oceans to rise and它能让海洋的水平面上升它能让海洋的水平面上升rise 是是不及物动词，不及物动词，意为：升起；上升意为：升起；上升The sun rises in the east.太阳从东方升起太阳从东方升起raise 是是及物动词及物动词，意为举起；抬起，提高，意为举起；抬起，提高请举手请举手Please raise your hands.sth risessth risesraise sthraise sth.31
