Unit 5 Working the Land Using language and Other Parts 课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

Unit 5 Working the Land Using language Explore the world hunger problem Identify supporting evidence When people present important facts, they usually give some evidence to support their claims. The evidence is usually mentioned at the start of a sentence. Listen out for key words like report, research, studies, figures, findings, etc. 听力技巧 Listen and answer What is the interview mainly about? The FAO, the causes of world hunger and the ways to solve the problem of world hunger. What causes of world hunger are mentioned? Droughts, floods, climate change, poverty and war. What is the FAO? What is its mission? The FAO stands for Food and Agriculture Organisation. Its mission is to eliminate/remove/get rid of world hunger. Listen and answer What can seriously affect crop production? Droughts, floods and climate change. What does the FAO think about nutritious food? The FAO thinks everyone should have the right to get healthy food. What is the FAO doing to alleviate world hunger? The FAO runs a project called Climate-Smart Agriculture to eliminate/remove/get rid of world hunger. What does the FAO suggest countries do? The FAO suggests countries focus on making new achievements in agriculture. What are all the possible causes of world hunger? Droughts, floods, poverty and war. What can we do to help alleviate droughts? We can invent new forms of agriculture and crops that don’t rely so much on water to tackle droughts. What can we do to help alleviate floods? We can prevent floods by building dams and levees. What can we do to help alleviate poverty? We can develop economy and carry out programs that give people more opportunities. What can we do to help alleviate wars? We can solve wars through international negotiation. What can students do to alleviate world hunger? 1.As a saying goes “Waste not, want not.” (勤俭节约，吃穿不缺). Never waste food. 2.Buy food that supports the environment. 3.Buy food that is friendly to the environment. 4.Educate people around to become aware of the problem and take action to help. 语言交际功能技巧 一起进入下面的环节…… Evaluate chemical farming and organic farming Chemical Versus Organic farming 12 Read the text and then answer the questions on P56. 1.Why did many farmers welcome the introduction of chemical farming? They can fight crop disease and increase production. 2.What concerns many people about the use of pesticides? Chemicals may make people ill and even cause cancer. 3.What is one problem with the use of chemical fertilizers? Crops grown with them usually grow too fast to be rich in nutrition. Chemical Versus Organic farming 4.How is organic farming different from chemical farming? Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of disease through natural means. 5.Why do organic farmers change the kind of crop grown in a field every year? Different crops are grown because they put important minerals back into the ground, making it ready for the next batch of crops. 6.What is the goal of using organic farming methods? The goal of using organic farming is to grow good food while avoiding damage to the environment or to people’s health. 7.Do you think it can be reached? Why or why not? Yes, I think this goal can be reached. Farmers worked for centuries without using any kinds of chemicals and without harming the environment and the food they produced was just fine. Part 1(Para.1-2) The problems with chemical farming Part 2(Para.3) What organic farming is Part 3(Para.4) Organic methods for producing rich soil Part 4(Para.5) Why man-made chemicals are still used in farming. Main ideas of each parts Summary of the text 课文概要 （要点一） Chemical pesticides and artificial fertilisers have been used widely in the world. 根据教材P55-56课文内容写一篇60字左右的内容概要 （要点二） Scientists have found using them for long can harm the land and people’s health as well. Summary of the text 课文概要 （要点三） To solve the problem, organic farming comes into being. （要点四） However, organic farming can’t meet the high demand for food around the world, so a suitable solution will have to be found. Summary of the text 课文概要 一起进入下面的环节…… 语言核心知识部分吧 Language Points 根据语境及汉语提示写出正确的单词或短语。 。 （1）chemical ________(除害药物) and artificial_________(肥料) （2）in _________ use 广泛应用 （3）have less ______(味道) （4） ________(完全必要的) minerals （5）as an _________(替代方法) （6）________(缓解) poverty pesticides widespread flavour alleviate alternative essential fertilisers 根据语境及汉语提示写出正确的单词或短语。 。 （7）kill harmful ________(细菌) and insects （8）turn to organic farming= _____ to organic farming （9）shop at the local ______(食品杂货店) （10）natural _______(粪便) from animals （11）plant diverse crops that use different________ (深度) of soil （12）serve the high ________(要求) for food around the world bacteria switch grocery demand depths waste 根据语境及汉语提示写出正确的单词或短语。 。 （13）have a poor ________ (消化) （14）ten meters in______(深) （15）put down deep_____(根) （16）grow the ground’s ________ (表层) （17）completely=______ （18）in many ways =______________ digestion depth roots surface entirely in many aspects （1） __________________________ 化学耕作与有机耕作 （2） _________________营养丰富 （3）_________________________________________________ 通过天然的方法保持土壤肥沃没有病害 （4）___________ 例如 （5）_______相应地；反而; 依次 （6）_____________________ meet that need 远远不能满足这一需求 for instance in turn chemical versus organic farming be rich in nutrition keep the soil rich and free of disease through natural means 根据汉语提示写出下列重点短语。 be nowhere near able to 句式分析：grown on the land 为过去分词短语作后置定语，修饰前面的名词the crops；过去分词与the crops之间构成动宾关系，表被动；相当于定语从句：which/that were grown on the land. 1.This affected the crops grown on the land and, in turn, the animals and humans who digest them. 这会影响被种植在土里的作物，继而影响消化这些作物的人畜。 重点句型梳理 过去分词与被修饰名词之间构成动宾关系，表被动；现在分词与被修饰名词间构成主谓关系。 过去分词作定语与现在分词作定语的区别 The girl smiling at me is my sister. The girl mentioned just now was walking towards the gate. The house lying at the foot of the mountain is very large. The house built long ago lies at the foot of the mountain. 刚才讨论的话题很受欢迎。 The topic discussed just now is very popular. The topic which/that was discussed just now is very popular. 等在外面的人们又累又饿。 The people waiting outside are tired and hungry. The people who/that are waiting outside are tired and hungry. 一句多译 【即学活用】 句式分析： as for = as to 关于；至于 grown with them为过去分词短语作后置定语，修饰前面的名词crops； too…to … 太……而不能…… 2.As for chemical fertilisers, crops grown with them usually grow too fast to be rich in nutrition. 至于化学肥料，用其施肥的作物通常生长过快而营养不足。 重点句型梳理 至于我们的环境，早是我们该采取措施保护它的时候了。 As for our environment, it is high time we took measures to protect it. 关于健康，在我们中间这是一个热门话题。 As for health, it is a hot topic among us. 翻译句子 【即学活用】 Assessing your progress 一起进入下面的环节…… Jia Sixie was a government official from Shandong Province who conducted a lot of agricultural research in the sixth century. In his travels, he observed that some farmers had much better ________ than others , so he decided to investigate the best ways of _______ good harvests. After retiring, he wrote a book, Qi Min Yao Shu, attain, be comprised of, depth, diverse, essential, for instance, output, soil 1.Read and complete the passage with the correct forms of the words and phrases in the box. Then answer the questions. outputs attaining which ________________ sound advice and practices for people doing agricultural work. In one piece of advice, ____________, he told farmers to turn the _____ over so that the weeds were covered. Then he gave advice on ploughing, suggesting that the autumn ploughing should be at a greater _____than the spring ploughing. attain, be comprised of, depth, diverse, essential, for instance, output, soil was comprised of for instance soil depth 32 He also suggested changing crops to get better harvests every year. Finally, he suggested that farmers grow a_________ range of crops next to each other in the fields. Although it has been centuries since Jia Sixie died, Qi Min Yao Shu is still considered a(n) ___________ book in China’s agricultural history. attain, be comprised of, depth, diverse, essential, for instance, output, soil diverse essential 1.Why did Jia Sixie investigate good ways of farming? 2.What makes Qi Min Yao Shu an important book in China’s agricultural history? 2.Fill in the blanks with that, whether, or wh- question words to complete the sentences. 1.________ the research center is to be set up has not been decided. 2._____many countries still face food shortages remains a big problem. 3._____ impressed me most was that the hybrid rice enabled farmers to expand their output greatly. 4.____________ the plan is to be carried out still needs discussing. That When What Whether/How 35 5.________ the new chemical pesticide is effective remains to be seen. 6. _____ will join in the research team will be announced tomorrow. 7. _______ he quit his high-paying job is not difficult to understand. He wanted to start up his own business. Whether Who Why 1.Do exercises on workbook P91-95. 2.Using words and expressions in this part to describe the text“chemical versus organic farming”. $$