新课标人教版必修四unit 2 Working the land Using Language 课件（共20张ppt）
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| 名称 | 新课标人教版必修四unit 2 Working the land Using Language 课件（共20张ppt） |  | |
| 格式 | zip | ||
| 文件大小 | 2.0MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2019-04-16 17:32:45 | ||
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课件20张PPT。Unit 2 Working the land Using Language
Memory test chemical root soil nutrition pestorganic fertilizerfertile bacteriaFarming proceduresploughing sowing irrigatingfertilizingWhat kind of fertilizers do farmers use?Chemical fertilizers Natural waste from animalsTomato with a strawberry heart?ReadingChemical or Organic Farming?Skim the passage and find out the topic sentence of each paragraph.
Time limit: 3 minutesLong-term use of chemical fertilizers can
cause damage to the land and people’s health.Problems caused by chemical fertilizers.The main idea of each paragraphP1.P2.Farmers and customers turn to organic
farming.Other organic farming methods to keep the soil fertile. P3.P4.Chemical FarmingOrganic FarmingRead the passage in detail and try to find out information about chemical and organic farming to fill in the following tables.
Time limit: 7minutesDetailed ReadingChemical farmingGroup 1--4Organic farmingGroup 5--8Chemical farminga great way to stop crop
disease and
increase
production1. damage the land3. build up in bodies and lead to cancer or other illnesses4. food grow too fast to be full of nutrition 2. stay in the ground and
underground water for a long timeOrganic farming1. use natural waste1.keep the soil rich and free from chemicals2. change the crop
in each field2.put minerals back
into soil3. plant crops with
different roots3.use different levels
of land 4. plant grass between
crops4.hold the soil, become
a natural fertilizer cause many
problems, so farmers are turning to
as a solution, which
not only grows good food but also avoids
_____________________________________. SummaryChemical fertilizersorganic farmingdamaging the environment or people’s healthUseful Expressions 1. 对……造成损害
2. 洗掉
3. 逐渐增强, 建立
4. 随着时间的推移
5. 导致; 造成
6. 另外，除此之外
7. 转向，求助于
8. 集中(注意力、精力)于
9. 使……富含……
10.使……免受(影响);
11. 防止，阻止……
12. 避免……
cause damage to…
wash off
build up
over time
lead to…
in addition
turn to…
focus on…
make… rich in…
keep…free from/of…
prevent…from…
avoid doing sth. 1. His mistakes ______ his failure.
2. These chemicals in the food supply________
in people’s bodies over time.
3. She _________ the police for help when getting
lost in the city.
4. Please _____ your mind ___ the following
problem.
5. Children should ________________ violence.led tobuild upfocusonturned tobe kept free fromExercisesUse the correct forms of some of the phrases above to fill in the following sentences. 6. He likes basketball. ___________, he likes
football.
7. Little Tom ________ the mud ____
his shoes by himself before he came in.
8. I tried to ______________ (meet) him because
he always bores me.
9. The storm on May 3 ___________ great
__________ people in Burma so far.In addition washedoffavoid meetinghas causeddamage toHomework Write a letter to farmers, telling them about the problems of chemical fertilizers and try to argue them into using organic farming methods.
制作单位： 广州市第八十九中学
制作人员： 郑佳玲
制作时间： 2017年5月9日
Memory test chemical root soil nutrition pestorganic fertilizerfertile bacteriaFarming proceduresploughing sowing irrigatingfertilizingWhat kind of fertilizers do farmers use?Chemical fertilizers Natural waste from animalsTomato with a strawberry heart?ReadingChemical or Organic Farming?Skim the passage and find out the topic sentence of each paragraph.
Time limit: 3 minutesLong-term use of chemical fertilizers can
cause damage to the land and people’s health.Problems caused by chemical fertilizers.The main idea of each paragraphP1.P2.Farmers and customers turn to organic
farming.Other organic farming methods to keep the soil fertile. P3.P4.Chemical FarmingOrganic FarmingRead the passage in detail and try to find out information about chemical and organic farming to fill in the following tables.
Time limit: 7minutesDetailed ReadingChemical farmingGroup 1--4Organic farmingGroup 5--8Chemical farminga great way to stop crop
disease and
increase
production1. damage the land3. build up in bodies and lead to cancer or other illnesses4. food grow too fast to be full of nutrition 2. stay in the ground and
underground water for a long timeOrganic farming1. use natural waste1.keep the soil rich and free from chemicals2. change the crop
in each field2.put minerals back
into soil3. plant crops with
different roots3.use different levels
of land 4. plant grass between
crops4.hold the soil, become
a natural fertilizer cause many
problems, so farmers are turning to
as a solution, which
not only grows good food but also avoids
_____________________________________. SummaryChemical fertilizersorganic farmingdamaging the environment or people’s healthUseful Expressions 1. 对……造成损害
2. 洗掉
3. 逐渐增强, 建立
4. 随着时间的推移
5. 导致; 造成
6. 另外，除此之外
7. 转向，求助于
8. 集中(注意力、精力)于
9. 使……富含……
10.使……免受(影响);
11. 防止，阻止……
12. 避免……
cause damage to…
wash off
build up
over time
lead to…
in addition
turn to…
focus on…
make… rich in…
keep…free from/of…
prevent…from…
avoid doing sth. 1. His mistakes ______ his failure.
2. These chemicals in the food supply________
in people’s bodies over time.
3. She _________ the police for help when getting
lost in the city.
4. Please _____ your mind ___ the following
problem.
5. Children should ________________ violence.led tobuild upfocusonturned tobe kept free fromExercisesUse the correct forms of some of the phrases above to fill in the following sentences. 6. He likes basketball. ___________, he likes
football.
7. Little Tom ________ the mud ____
his shoes by himself before he came in.
8. I tried to ______________ (meet) him because
he always bores me.
9. The storm on May 3 ___________ great
__________ people in Burma so far.In addition washedoffavoid meetinghas causeddamage toHomework Write a letter to farmers, telling them about the problems of chemical fertilizers and try to argue them into using organic farming methods.
制作单位： 广州市第八十九中学
制作人员： 郑佳玲
制作时间： 2017年5月9日
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