Bài giảng Tiếng anh Lớp 8 - Unit 7, Lesson 5: Skills 1

PICTURE APICTURE BWhat are the DIFFERENCES?+ ducks' color+ Where are the ducks going to?+ Are there any factories? + How is the lake? Which is dirty/clean.PICTURE APICTURE BThe ducks are white.The ducks are black.They’re going to the lake.They’re going from the lake.There aren’t any factories near the lake.There are some factories near the lake.The lake water is clean.The lake water is dirty.What does the picture tell you?Water pollutionPeriod 59: Unit 7: POLLUTIONLesson: Skills 1I. Warm upII. VocabularyWater pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.Water pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution. Water pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the death of aquatic animals such as fishes, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment. So what should we do to reduce water pollution?I. Warm upII. VocabularyWater pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.contamination = something is not cleanWater pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution. Water pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the death of aquatic animals such as fishes, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment. So what should we do to reduce water pollution?contamination (n)/kənˌtæmɪˈneɪʃn/ sự làm bẩngroundwater (n)/ˈɡraʊndwɔːtə(r)/ nước ngầmsewage (n)/ˈsuːɪdʒ/ nước thảipesticide (n)/ˈpestɪsaɪd/ thuốc trừ sâuinsect (n)/ˈɪnsekt/ côn trùngherbicide(n)/ˈhɜːbɪsaɪd/ thuốc diệt cỏweeds(n)/wiːd/ cỏ dạicholera(n)/ˈkɒlərə/ dịch tảuntreated water(n)/ˌʌnˈtriːtɪd/ /ˈwɔːtər/ nước chưa qua xử líI. Warm upII. Vocabulary Checking vocabularySewagepesticides weeds insectsherbicidescholerauntreated watergroundwatergroundwaterSewageherbicideweeds cholerauntreated waterinsectspesticideIII. ReadingActivity 1. Reading for general ideas: Skimmingthen answer the questions.Water pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.What does this paragraph tell you?Definition of water pollutionWater pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution. Q1. What does this paragraph tell you?Causes of water pollutionWater pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the death of aquatic animals such as fishes, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment. So what should we do to reduce water pollution?Q2. What does this paragraph tell you?Effects of water pollutionWater pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.Q3. What is ground water?the water beneath the Earth’s surfaceWater pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution. Q4. What are the point source pollutants?waste, sewage, pesticides, and herbicides.Water pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution. Q5. What are the non-point source pollutants?pollutants from storm water and the atmosphereWater pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the death of aquatic animals such as fishes, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment. So what should we do to reduce water pollution?Q6. Why do people use herbicides?to kill weeds.1. If the drinking water is untreated, an outbreak of_____________may happenIII. ReadingActivity 2. Reading for specific ideas: scanningRead the text again and fill each blank with no more than three words.Water pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the death of aquatic animals such as fishes, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment. So what should we do to reduce water pollution?2. People drinking contaminated water may ______________.3. Fish, crabs or birds may also die because of ______________4.Other animals may become ill if they eat the ____________animals5. Herbicides kill both weeds and_____________.choleradiepolluted waterdeadaquatic plantsActivity 3. Further practice: Read the text again and decide T or F.1.Groundwater is the water above the Earth's surface.2. Industrial watse, sewage, pesticides and herbicides are factors cause 'point source pollution'.3. The outbreaks of cholera, the death of aquatic animals and plants are the effects of water pollution.4. Polluted water only make aquatic animals die.FTTFbeneathnot onlyIV. SPEAKINGACT 1. WORK IN GROUPS AND DISCUSS THE SOLUTION TO WATER POLLUTION.SOLUTIONS TO WATER POLLUTIONSban using pesticide and hebicidestreated waste water system Using purifierPlant more treesCollect oil spillsCollect trash along the beachSPEAKINGACT 2. COMPLETE THE DIAGRAM OF WATER POLLUTION.WATER POLLUTION: Definition:___________CAUSES- Point source pollutants- Non-point source pollutantsEFFECTS- Humans:__- Animals:___- Plants:____SOLUTIONS:-________-_____-_____SPEAKINGACT 3. MAKE A PRESENTATION ABOUT WATER POLLUTION.WATER POLUTIONDefinition: the contamination of body water, such as lakes, rivers, oceans, and ground waterCAUSES- Point source pollutants: + Factories dump waste into lakes, river.+ sewage from households+ pesticides and herbicides- Non-point source pollutants: + pollutants from storm water and the atmosphere.EFFECTSHumans: outbreaks o cholera and other diseases or dieAnimals: some aquatic animals such as fish, crabs, bird may die or get sick.Plants: die. SOLUTIONS:-Government: +Ban or reduce using pesticides or herbicides.+ Fine factories/ household dumps waste/sewage/ untreated water- Humans:+ Collect oil spills, waste along the beaches, rivers, lakes. + Plant more tree + Using water purifiers, so onV. Consolidation1. Vocabulary2. Your responsibility to prevent water pollutionCopy and learn by heart vocabulary.Do ex part D1,2,3,4 Workbook.Write a pararaph (70-80 words) about the causes and effects of water pollution.VI. Homework