2022年高中英語《Unit2 working the land2》教案 新人教版必修4

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1、2022年高中英語《Unit2 working the land2》教案 新人教版必修4 教材分析（analysis of teaching material）: This passage is a about organic farming. Nowadays, the chemical fertilizers are popular among farming. It damages the land, is bad for environment and people’s health. Some farmers and customers prefer the organic far

2、ming. Students can learn something about it from this passage. 學(xué)情分析（analysis of the students）This passage is little difficult for our students. There are some difficult sentences for them. Teachers can help students to read them and try to translate them. Meanwhile, our students can learn somethi

3、ng new about farming. Chemical fertilizers cause many problems, so organic farming are popular among farming. 教學(xué)目標(biāo)(Teaching aims) 知識目標(biāo)(Knowledge aims) Words: mineral; reduce; organic; level; whatever; bacteria; refer to; year after year… Sentences: 1） Many farmers weled them as a great way to

4、 stop crop disease and increase production. 2) First, they damage the land by killing the helpful bacteria and pests as well as the harmful ones. 3) These many different organic farming methods have the same goal: to grow good food and avoid damaging the environment or people’s health. 能力目標(biāo)(Abili

5、ty aims):Enable students to master the main idea of the text and know the ways of organizing articles. 情感目標(biāo)（Emotional aims）: help students learn how to enlarge the words and know the ways of the same topic. 教學(xué)重點(diǎn)和難點(diǎn)（teaching important points and difficult points） #Teaching important points: words

6、and expressions, main idea and some difficult sentences #Teaching difficult points: how to grasp the main idea of the passage; how to grasp the words and phrases and be able to use them of the same topic. 教學(xué)過程(Teaching procedures) Step 1 pre-reading Q :1) How do you know about the organic farm

7、ing? Can you say something about it? 2) As known to all, chemical fertilizers can help the crops grow strong and big, do you think it is good for our health? And why? Step 2 reading Task 1 questions about the passage. 1) What’s the organic farming? 2) What is the advantage of using natural fe

8、rtilizers? 3) What is the disadvantage of using chemical fertilizers? 4) What’s the main idea of paragraph 3? 5) Why do farmers grow their crops in such ways? Task 2 structure of the text Organic Farming I Crops growing with natural fertilizers II Farmers prefer

9、 natural waste from animals Natural fertilizer Chemical fertilizer 1 make …richer and 1 leaving …is not good more fertili 2 reduce …and help …strong 2 grow …year after year 3 the fertilizers kill …from chemicals III Farmers change crops every tw

10、e or three years. … to make sure what is left … This is the structure of the text, read it and retell the text according to it. Task 3 exercises on page 14 Because some of the exercises have been involved in Step II, teachers can leave this part to students. For Exerc

11、ise 3, here is a simple: Organic farming means crops growing with natural fertilizers instead of chemical ones. Yhe natural fertilizer which is natural waste from animals does good to soil. It makes the soil richer in minerals while chemical fertilizers damage the soil, leaving chemicals fertilizer

12、s in the ground for a long time and killing both helpful and harmful bacteria and pests. Organic farmers keep the soil rich and healthy by changing plants every two or three years, planting different crops in different layers and planting grass between crops to prevent wind or water from carrying aw

13、ay the soil. 板書設(shè)計(jì) Organic Farming I Crops growing with natural fertilizers II Farmers prefer natural waste from animals Natural fertilizer Chemical fertilizer 1 make …richer and 1 leaving …is not good more fertili 2

14、reduce …and help …strong 2 grow …year after year 3 the fertilizers kill …from chemicals III Farmers change crops every twe or three years. … to make sure what is left … 1. 2. Retell the passage: Using chemical fertilizers is popular because it can stop crop

15、 disease and increase _____1____, but long-term use of these fertilizers can cause damage to the land and even to people’s health. Organic farming is to grow crops with natural but not ____2____ fertilizers. Organic farmers ____3_____ keeping their soil rich and ___4_______ disease. They prefer usin

16、g natural waste from animals as fertilizers. They think this makes the soil in their fields _____5_____- minerals and so more ____6______. Organic farmers also use many other methods to keep the soil fertile. They often change the kind of crop in each field ___7____, or plant crops to use different

17、______8____ of soil, or plant grass between cops to prevent wind or water from ___9___ the soil. However, these methods have the same goal: to grow good food and avoid damaging the ___10____ or people’s health. 問題研討(Problem study): 課堂提問: 1) What’s the organic farming? 2) What is the advantage

18、of using natural fertilizers? 3) What is the disadvantage of using chemical fertilizers? 4) What’s the main idea of paragraph 3? 5) Why do farmers grow their crops in such ways? 練習(xí): Exercises on page 35 of the exercise book: Chemical farming Advantages Stopping crop disease and increase p

19、roduction Disadvantages Damaging the land: killing the helpful bacteria and pests Damaging people’s health: many chemical in the food supply can lead to cancer or other illnesses Food grows too fast to be full of much nutrition Organic farming Goal To grow good food and avoid damaging the

20、environment or people’s health Methods Using natural waste from animals as fertilizer. Changing the kind of crop in each field every few years. Using different levels of soil to plant crops. Planting grass between crops 作業(yè) Part 1 (A level)單詞拼寫 1. After a long s______, he gained control of th

21、e business. 2. Our foreign trade has e_____ greatly in recent years. 3. E_________ your child with some special skills is necessary. 4. The twins are so alike that I always c_________ them with each other. 5. He died of h_________ because he had not eaten for days. 6. As is known to all, coal a

22、nd iron are __________（礦物）. 7. If you keep staying in the sun for a long time, you’ll get ______________(曬黑的). 8. Every year, we will __________(出口) a lot of rice to other countries. 9. In the past three __________(十年), great changes have taken place in our hometown. 10. It is suggested that the

23、 only way to do that is to ____________(減少) expenses. Keys: 1 struggle 2 expanded 3 Equipping 4 confuse 5 hunger 6 minerals 7 sunburnt 8 export 9 decades 10 reduce Part 2 (B level) 選詞填空 rid…of; be satisfied with; focus on; thanks to; would rather

24、; make ments on; be rich in 1. ___________ the doctor’s timely help, the boy was saved. 2. The chairman told us that the meeting would _______ how to deal with the pollution caused by the factories. 3. You have given the correct answer. I ________________________it. 4. He read the content

25、s himself and ____________________ it in time. 5. Last night they _____the dormitory _____mice, which made much noise at night. 6. As we know, vegetables __________vitamins. 7. I don't hope to leave so soon; I __________________ stay home a day lpnger. Keys: 1 Thanks to 2 focus on 3 am

26、satisfied with 4 made ments on 5 rid of 6 are rich in 7 would rather Part 3 (C level) 根據(jù)課文內(nèi)容填空 Using chemical fertilizers is popular because it can stop crop disease and increase _____1____, but long-term use of these fertilizers can cause damage to the land and even to peopl

27、e’s health. Organic farming is to grow crops with natural but not ____2____ fertilizers. Organic farmers ____3_____ keeping their soil rich and ___4_______ disease. They prefer using natural waste from animals as fertilizers. They think this makes the soil in their fields _____5_____- minerals and s

28、o more ____6______. Organic farmers also use many other methods to keep the soil fertile. They often change the kind of crop in each field ___7____, or plant crops to use different ______8____ of soil, or plant grass between cops to prevent wind or water from ___9___ the soil. However, these methods have the same goal: to grow good food and avoid damaging the ___10____ or people’s health. Keys: 1 production 2 chemical 3 focus on 4 free of/ from 5 richer in 6 fertile 7 every few years 8 levels 9 carrying away 10 environment