必修4Unit 2 Chemical or Organic Farming公开课优质获奖课件
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Unit 2 Period 3 Chemical or Organic farming说课稿固阳县第一中学乔佳2016.9.22各位评委老师，上午好，今天我说课的内容是高中英语必修4Unit 2 第三课时Using Language Chemical or Organic farming我说课内容包括以下几个部分：教材分析、学情分析、说教法学法、教学程序及教学反思。
首先我们来进行教材分析。
一．教材分析本课为人教课标版必修4 Unit2 Working the land. Using language：Chemical or Organic farming 。
本单元的中心话题是“农业”，本课是该单元的第二篇阅读课。
学生通过讨论和阅读了解有关化肥危害和有机耕作的知识，并运用这些知识倡导学生关注有机农业，注重健康。
二．学情分析高中二年级学生，智力发展趋于成熟。
他们的认知能力比初中阶段有了进一步的发展，渐渐形成用英语获取信息、处理信息、分析问题和解决问题的能力。
他们学习英语方法由死记硬背转型向理解型并应用到交际上，他们有自己的学习技能和策略，学会把语言学习与现实生活和兴趣联系起来。
通过任务型课堂活动和学习，学生的学习自主性得到加强，不再认为英语的课堂学习很枯燥，主动参与到活动中去，成为课堂的主体，同时也加强了与他人交流合作的能力。
他们会对课文内容提出自己的疑惑和勇于阐述见解，并且从课内知识拓展到课外，通过多种渠道获取学习资源。
不过，学生的水平参差不齐，有些差距还相当大。
因此在教学过程中，布置的任务要兼顾各个层次的学生，使他们都有所收获。
三．教学目标分析根据新颁布的《普通高中英语课程标准（实验稿）》关于阅读课主要教学目标的具体描述，结合本课教学内容，具体从语言知识、语言技能、情感态度和文化意识三个方面制定如下教学目标。
1. 语言知识目标：a) 使学了解农业耕种的相关词汇，并掌握相关的表达法。
b)学习动词的---ing 形式作主语的句型。
必修4Unit 2 Chemical or Organic Farming公开课优质获奖课件
______ _______ _______ _______
The topic sentences of each paragraph: A. What are some of the problems caused by chemical fertilizers? B. With these discoveries, some farmers and many customers are beginning to turn to organic farming. C. Organic farmers also use many other methods to keep the soil fertile. D. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and even more dangerous, to people's health. Task 2 Put the four paragraphs in order. D ______ A _______ B _______
The topic sentences of each paragraph: A. What are some of the problems caused by chemical fertilizers? B. With these discoveries, some farmers and many customers are beginning to turn to organic farming. C. Organic farmers also use many other methods to keep the soil fertile. D. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and even more dangerous, to people's health. Task 2 Put the four paragraphs in order. C A B D
The topic sentences of each paragraph: A. What are some of the problems caused by chemical fertilizers? B. With these discoveries, some farmers and many customers are beginning to turn to organic farming. C. Organic farmers also use many other methods to keep the soil fertile. D. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and even more dangerous, to people's health. Task 2 Put the four paragraphs in order. D ______ A _______ B _______
The topic sentences of each paragraph: A. What are some of the problems caused by chemical fertilizers? B. With these discoveries, some farmers and many customers are beginning to turn to organic farming. C. Organic farmers also use many other methods to keep the soil fertile. D. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and even more dangerous, to people's health. Task 2 Put the four paragraphs in order. C A B D
M4 U 2 Chemical or Organic Farming高中环境教育学科同步
M 4 Unit 2 Working the landReading, listening and speakingChemical or Organic Farming?姜颖【教学设计背景及学情分析】随着人们生活水平的提高，越来越多的人开始关注生态环境和健康生活的问题，我国政府也采取大量措施进行生态维护和环境保护，有机农业也就引起了人们的关注。
Chemical or Organic Farming? 是人教版高中英语教材必修四Unit 2的一篇泛读课文，旨在通过阅读及后续的听说练习让学生们对比在农业生产中使用化肥的不良后果，更多感受到有机农业的优势，同时意识到人类的生产生活不能以违背自然规律、破坏生态系统为代价，将“绿水青山就是金山银山”的理念在未来的生产生活中传承下去。
农业生产是城市里的孩子不熟悉的内容，然而亲近自然和对田园生活的向往是人类的本性。
本文的话题学生们会产生浓厚的好奇心和探索欲，激发他们学习和表达的兴趣，更愿意参与到课堂活动中来表达他们的看法。
【环境教育渗透点】G2 化肥和农药污染G3 生态农业【教学目标】1. 知识学习目标：学习掌握话题相关的单词、短语：chemical farming, organic farming, fertilize, nutrition , soil, reduce disease, natural waste, build up, lead to 等2.能力目标：整体把握文章结构，概括文章大意；在听力素材中提取大意，找出有效信息；运用所学英语表达自己的观点和想法。
3. 情感态度目标: 通过本课的学习和讨论意识到，人类是自然的一部分，人类的生产和生活都要顺应自然规律，提倡绿色环保的生产生活方式，这样大自然也必然会回馈给人类更健康、更幸福的地球家园。
【教学重点】通过泛读与听说练习，提高学生的阅读概括能力和在阅读及听力素材中提取有效信息的能力，培养学生用英语表达的能力和信心。
Book-4-Unit2-chemica-or-organic-farming
What are some of the problems caused by plastic bags? First, people often leave plastic bags here and there, making white pollution. Second, it takes a long time, more than 100 years ,to be exact, to break up .Last but not least, when heated, plastic bags can produce something harmful, which can build up in our body and eventually lead to cancer or other diseases.
Main idea of the passage
_C_h_e_m_i_c_a_l fertilizers can cause many
problems, so organic farming is
becoming more_p_o_p_u_la_r__.
The structure of this passage
Let’s use cloth bags in our daily life instead of plastic bags, not only for the environment protection, but also for the sake of our health.
Suppose you were given a farm. What would you like to grow or raise? How would you deal with your farming?
人教版高中英语必修四 unit2 woking the land reding2 Chemical or Organic Farming PPT课件
chemical fertilizers natural fertilizers
Expressions
1.化肥
chemical fertilizers
2.对…造成损害
cause/do damage to
3.洗掉某物
wash off
4.导致;造成(后果);通往 lead to
5.逐渐增强,建立
bulid up
Farming without using chemicals. • 3.What is the goal of “organic farming”?
To grow good food and avoid damaging the environment or people’s health
• Read the text carefully • 1.Why are chemical fertilizers so popular in
1. His mistakes l_e_d_t_o_ his failure. 2. These chemicals in the food supply_b_u_li_d_u_p
in people’s bodies over time. 3. All roads _l_ea_d__t_o_ Rome. 4. Please _f_o_c_u_s your mind_o_n_ the
Chemical or Organic Farming
(reading 2)
• Let’s understand the title. • How many parts do you think the
passage? And what are they about? Two. 1. Chemical Farming 2. Organic Farming
高中英语 人教版必修四Unit2 Reading -chemical or organic farming(共31张PPT)
• What makes crops grow faster & better ?
2020/6/3
5
It is fertilizer.
2020/6/3
6
fertilizer
How many kinds of fertilizers do you know? There are two kinds.
D
A. Leaving chemicals in the ground
for a long time is good for water supply.
B. They can get the soil exhausted.
C. They can kill helpful bacteria.
D. They can kill harmful pest.
chemical fertilizers
natural fertilizers
2020/6/3
7
chemical fertilizers natural fertilizers chemical farming organic farming
Better ？
2020/6/3
8
Step Ⅲ. Reading
2020/6/3
13
2.1. Choose the best answer.
1. Which statement is WRONG according to the text ? D A. All crops are organic. B. Recently, the term “organic farming” has gained another meaning. C. All farmers use fertilizers. D. Scientists believe some chemical fertilizers are better for people.
2020/6/3
5
It is fertilizer.
2020/6/3
6
fertilizer
How many kinds of fertilizers do you know? There are two kinds.
D
A. Leaving chemicals in the ground
for a long time is good for water supply.
B. They can get the soil exhausted.
C. They can kill helpful bacteria.
D. They can kill harmful pest.
chemical fertilizers
natural fertilizers
2020/6/3
7
chemical fertilizers natural fertilizers chemical farming organic farming
Better ？
2020/6/3
8
Step Ⅲ. Reading
2020/6/3
13
2.1. Choose the best answer.
1. Which statement is WRONG according to the text ? D A. All crops are organic. B. Recently, the term “organic farming” has gained another meaning. C. All farmers use fertilizers. D. Scientists believe some chemical fertilizers are better for people.
M4U2 chemical or organic farming
D. planting grass between crops to prevent
the soil from being blown away
LOGO
2.2.Answer the following questions
.(P14. Ex.1)
1. Why are chemical fertilizers so popular in farming today? 2.What problems can be caused by using chemical fertilizers?
Step Ⅵ. Homework Read the passage more carefully after class, and find some useful language points. Finish the exercises on workbook P49~50.
LOGO
LOGO
P1. P2.
P3. P4.
A. Other methods to keep the soil fertile
B. Farmers and customers turn to organic farming.
C. Problems caused by chemical fertilizers
D. Long-term use of chemical fertilizers can cause damage to the land and people’s health.
Language points
1.… killing the helpful bacteria and pests as well as the harmful ones. as well as “(除 ... 之外)也，又” ,可连接并列 的单词或短语 He grows flowers as well as vegetables. A teacher should entertain as well as teach. It is unpleasant in summer as well as in winter.
云南省玉溪市高中英语必修四：Unit 2 Chemical or Organic Farming 课件
Para1
Why are chemical fertilizers so popular in farming
today? B
A. Because they are expensive.
B. They are a great way to stop crop disease and
increase production.
Jia Lida Supermarket
Speaking: role-play
Situation: You are a farmer and your partners are customers. You are now persuading the customers to buy your “green food” that is healthy and safe but more expensive.
To keep the water as well as keep the soil.
Post-reading
Over the past half century, using chemical fertilizers 1. h_a_s_b_e_c_o_m__e(become) very common in farming. 2. H__o_w_e_v_e_r, using chemical fertilizers for a long term can cause damage 3.__t_o__ the land. These chemicals in the food supply build up in people’s bodies over time. In addition, food grown with chemical 4. _f_er_t_il_iz_e_r_s_ (fertilizer) are lack of nutrition. So farmers are beginning 5. __to__tu_r_n___ (turn) to organic farming. They focus on 6._k_e_e_p_in_g_(keep) their soil rich and free from disease. These methods have7. __th_e__ same goal: to grow good food and to keep the environment and people 8.__h_ea_l_th_y__ ( health ).
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Task 1 Underline the topic sentence of each paragraph.
A. What are some of the problems caused by chemical fertilizers?
B. ...____________________________________________________ C. ...____________________________________________________
A What are some of the problems caused by chemical fertilizers? First, they damage the land by killing the helpful bacteria and pests as well as the harmful ones. Chemicals also stay in the ground and underground water for a long time. This affects crops and, therefore, animals and humans, since chemicals get inside the crops and cannot just be washed off. These chemicals in the food supply build up in people’s bodies over time. Many of these chemicals can lead to cancer or other illnesses. In addition, fruit, vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition. They may look beautiful, but inside there is usually more water than vitamins and minerals.
Unit 2 Chemical or Organic Farming?
—What do farmers need to grow food? —They need… + +
+
Fertilizers?
Chemical fertilizers
Natural fertilizers
chemical farming ____________
D. ...____________________________________________________
Task 1 Underline the topic sentence of each paragraph.
B With these discoveries, some farmers and many customers are beginning to turn to organic farming. Organic farming is simply farming without using any chemicals. They focus on keeping their soil rich and free of disease. A healthy soil reduces disease and helps crops grow strong and healthy. Organic farmers, therefore, often prefer using natural waste from animals as fertilizer. They feel that this makes the soil in their fields richer in minerals and so more fertile. This also keeps the air, soil, water and crops free from chemicals.
C Organic farming also use many other methods to keep the soil fertile. They often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next year peas or soybeans. Crops such as peas or soybeans put important minerals back into the soil, making it ready for crops such as wheat or corn that need rich and fertile soil. Organic farmers also plant crops to use different levels of soil, for example, planting peanuts that use the ground’s surface followed by vegetables that put down deep roots. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to become a natural fertilizer for the next year’s crop. These many different organic farming methods have the same goal: to grow good food and avoid damaging the environment or people’s health.
organic farming ____________
Chemical OrganicFarming? Farming Chemical or Organic
or
?
Predict what we will know from the passage. — We'll know...
Task 1 Underline the topic sentence of each paragraph.