高中英语概要写作：-a-vegetarian-dietppt课件.pptx

SummaryWriting A vegetarian diet Typeofwriting:Structure:Exposition(说明文)1.Phenomenon(Para.1)2.Finding(Para.2)3.Cause1(Para.3)4.Cause2(Para.4)5.Suggestion(Para.5)Version1:(5 points)point 1:phenomenonpoint 2:findingpoint 3:cause 1point 4:cause 2point 5:suggestionVersion 2:(4 points)point 1:phenomenonpoint 2:findingpoint 3:Causes 1&2point 4:suggestionPara.1:Phenomenon A vegetarian diet is often praised for its health benefitsStudies have shown that vegetarians usually have lower levels of heart disease and a risk of diabetes（糖尿病）than people who eat meatWhat most people are less aware of,however,are the effects that a vegetarian diet can have on the environmentPara.1:Phenomenon A vegetarian diet is often praised for its health benefitsStudies have shown that vegetarians usually have lower levels of heart disease and a risk of diabetes（糖尿病）than people who eat meatWhat most people are less aware of,however,are the effects that a vegetarian diet can have on the environmentPara.1:Phenomenon A vegetarian diet is often praised for its health benefitsStudies have shown that vegetarians usually have lower levels of heart disease and a risk of diabetes（糖尿病）than people who eat meatWhat most people are less aware of,however,are the effects that a vegetarian diet can have on the environmentPara.1:Phenomenon A vegetarian diet is often praised for its health benefitsStudies have shown that vegetarians usually have lower levels of heart disease and a risk of diabetes（糖尿病）than people who eat meatWhat most people are less aware of,however,are the effects that a vegetarian diet can have on the environment1.Although a vegetarian diet is known for being beneficial to health,people are unconscious that it affects the environment.2.A vegetarian diet is good for promoting health,but people hardly realize it contributs to protecting the environment.3.While widely considered beneficial to health,a vegetarian diet is seldom associated with the environmental protection.要点 1 A vegetarian diet;health benefits;however,less aware of the effects on the environmentPara.2:Finding Researchers from the Union of Concerned Scientists in the US recently studied how consumer behavior affects the environment.The study showed that meat consumption is one of the main ways that humans can damage the environment，second only to the use of motor vehiclePara.2:Finding Researchers from the Union of Concerned Scientists in the US recently studied how consumer behavior affects the environment.The study showed that meat consumption is one of the main ways that humans can damage the environment，second only to the use of motor vehiclePara.2:Finding Researchers from the Union of Concerned Scientists in the US recently studied how consumer behavior affects the environment.The study showed that meat consumption is one of the main ways that humans can damage the environment，second only to the use of motor vehiclePara.2:Finding Researchers from the Union of Concerned Scientists in the US recently studied how consumer behavior affects the environment.The study showed that meat consumption is one of the main ways that humans can damage the environment，second only to the use of motor vehicle1.A study shows meat consumption is one of the main factors in the environmental destruction.2.According to a study,consuming meat has a negative influence on the environment/causes some bad environmental consequences要点 2 recently;study;meat consumption;damage the environment;(second only to.)Para.3:Cause 1 Then，how can eating meat have a negative effect on the environment？For a start，all farm animals such as cows，pigs，and sheep give off methane gas（沼气）by expelling(排出)wind from their bodiesOne cow can produce up to 60 liters of methane each dayMethane gas is the second most common greenhouse gas after carbon dioxideMany environmental experts now believe that it is more responsible for global warming than carbon dioxideIt is estimated that 25%of all methane released into the atmosphere comes from farm animalsPara.3:Cause 1 Then，how can eating meat have a negative effect on the environment？For a start，all farm animals such as cows，pigs，and sheep give off methane gas（沼气）by expelling(排出)wind from their bodiesOne cow can produce up to 60 liters of methane each dayMethane gas is the second most common greenhouse gas after carbon dioxideMany environmental experts now believe that it is more responsible for global warming than carbon dioxideIt is estimated that 25%of all methane released into the atmosphere comes from farm animalsPara.3:Cause 1 Then，how can eating meat have a negative effect on the environment？For a start，all farm animals such as cows，pigs，and sheep give off methane gas（沼气）by expelling(排出)wind from their bodiesOne cow can produce up to 60 liters of methane each dayMethane gas is the second most common greenhouse gas after carbon dioxideMany environmental experts now believe that it is more responsible for global warming than carbon dioxideIt is estimated that 25%of all methane released into the atmosphere comes from farm animalsPara.3:Cause 1 Then，how can eating meat have a negative effect on the environment？For a start，all farm animals such as cows，pigs，and sheep give off methane gas（沼气）by expelling(排出)wind from their bodiesOne cow can produce up to 60 liters of methane each dayMethane gas is the second most common greenhouse gas after carbon dioxideMany environmental experts now believe that it is more responsible for global warming than carbon dioxideIt is estimated that 25%of all methane released into the atmosphere comes from farm animalsPara.3:Cause 1 Then，how can eating meat have a negative effect on the environment？For a start，all farm animals such as cows，pigs，and sheep give off methane gas（沼气）by expelling(排出)wind from their bodiesOne cow can produce up to 60 liters of methane each dayMethane gas is the second most common greenhouse gas after carbon dioxideMany environmental experts now believe that it is more responsible for global warming than carbon dioxideIt is estimated that 25%of all methane released into the atmosphere comes from farm animals1.Farm animals produce methane gas into the atmosphere,causing global warming.2.Large quantities of methane gas released by farm animals leads to the temperature rise.3.Animals raised for meat release a large amount of methane into the atmosphere,contributing greatly to global warming.要点 3 farm animals;give off methane gas;responsible for global warmingPara.4:Cause 2 Another way that meat production affects the environment is through the use of water and land.2,500 gallons of water are needed to produce one pound of beef,whereas 20 gallons of water are needed to produce one pound of wheatOne acre of farmland used for crop production can produce 40,000 pounds of potatoes，30,000 pounds of carrots，or 50,000 pounds of tomatoes.Para.4:Cause 2 Another way that meat production affects the environment is through the use of water and land.2,500 gallons of water are needed to produce one pound of beef,whereas 20 gallons of water are needed to produce one pound of wheatOne acre of farmland used for crop production can produce 40,000 pounds of potatoes，30,000 pounds of carrots，or 50,000 pounds of tomatoes.Para.4:Cause 2 Another way that meat production affects the environment is through the use of water and land.2,500 gallons of water are needed to produce one pound of beef,whereas 20 gallons of water are needed to produce one pound of wheatOne acre of farmland used for crop production can produce 40,000 pounds of potatoes，30,000 pounds of carrots，or 50,000 pounds of tomatoes.Para.4:Cause 2 Another way that meat production affects the environment is through the use of water and land.2,500 gallons of water are needed to produce one pound of beef,whereas 20 gallons of water are needed to produce one pound of wheatOne acre of farmland used for crop production can produce 40,000 pounds of potatoes，30,000 pounds of carrots，or 50,000 pounds of tomatoes.Para.4:Cause 2 Another way that meat production affects the environment is through the use of water and land.2,500 gallons of water are needed to produce one pound of beef,whereas 20 gallons of water are needed to produce one pound of wheatOne acre of farmland used for crop production can produce 40,000 pounds of potatoes，30,000 pounds of carrots，or 50,000 pounds of tomatoes.1.Meat production requires much water and land.2.Much more water and land is needed for meat production than for crop production.3.Raising animals consume far more water and land than planting crops.要点 4 meat production affects the environment is through the use of water and landPara.5:Suggestion Many people now see the benefits of switching to a vegetarian diet，not just for health reasons，but also because it plays a vital role in protecting the environmentHowever，some nutritionists advise against switching to a totally strict vegetarian，or vegan dietThey believe a vegan diet，which excludes（拒绝）all products from animal sources，such as cheese，eggs，and milk，can be short of many necessary vitamins and minerals our bodies needPara.5:Suggestion Many people now see the benefits of switching to a vegetarian diet，not just for health reasons，but also because it plays a vital role in protecting the environmentHowever，some nutritionists advise against switching to a totally strict vegetarian，or vegan dietThey believe a vegan diet，which excludes（拒绝）all products from animal sources，such as cheese，eggs，and milk，can be short of many necessary vitamins and minerals our bodies needPara.5:Suggestion Many people now see the benefits of switching to a vegetarian diet，not just for health reasons，but also because it plays a vital role in protecting the environmentHowever，some nutritionists advise against switching to a totally strict vegetarian，or vegan dietThey believe a vegan diet，which excludes（拒绝）all products from animal sources，such as cheese，eggs，and milk，can be short of many necessary vitamins and minerals our bodies needPara.5:Suggestion Many people now see the benefits of switching to a vegetarian diet，not just for health reasons，but also because it plays a vital role in protecting the environmentHowever，some nutritionists advise against switching to a totally strict vegetarian，or vegan dietThey believe a vegan diet，which excludes（拒绝）all products from animal sources，such as cheese，eggs，and milk，can be short of many necessary vitamins and minerals our bodies needPara.5:Suggestion Many people now see the benefits of switching to a vegetarian diet，not just for health reasons，but also because it plays a vital role in protecting the environmentHowever，some nutritionists advise against switching to a totally strict vegetarian，or vegan dietThey believe a vegan diet，which excludes（拒绝）all products from animal sources，such as cheese，eggs，and milk，can be short of many necessary vitamins and minerals our bodies need be against/be opposed to/object to/dont approve of/argue against lack/lack of essential nutrients nutrition 要点 5 benefits,protecting the environment;However;nutritionists advise against a totally strict vegetarian;short of necessary vitamins and minerals People choose a vegean diet for the benefit of the environment,but some nutritionists object to being a complete vegetarian because they lack some essential nutrients.While widely considered beneficial to health,a vegetarian diet is seldom associated with the environmental protection.According to a study,consuming meat has a negative influence on the environment/causes some bad environmental consequences.Large quantities of methane gas released by farm animals leads to the temperature rise.Raising animals consume far more water and land than planting crops.People choose a vegean diet for the benefit of the environment,but some nutritionists object to being a complete vegetarian because they lack some essential nutrients.参考范文