人教版高中英语必修4精品教案Unit2 Working the land

Unit2 Working the landVocabulary and Useful ExpressionsStep1.重点难点1. In many ways, he is one of them, and he struggled for the past five decades to help them.In a way; in one way; in some ways 在某种程度上2．However, he cares little about spending the money on himself or leading a comfortable life. care v. 在乎,在意，喜欢，有兴趣spend sth. … on … 在某方面花费spend … (in) doing sth. 花费…做某事3．Wishing for nothing, however, costs nothing.wishing for nothing 动名词短语做主语，谓语动词用单数。

however是插入语，表示语气的一种转折。

4．It also refers to crops growing with natural rather than chemical fertilizers.refer to 与…有关，关系到某人、某事；提到，涉及；参考5．Instead, organic farmers insist on changing crops every two or three years.insist on 坚持要求；insist后面可以跟从句，其中谓语动词常用should + 动词原形构成 6．Dr. Yuan awoke from his dream with the hope of producing a kind of rice that could fees more people.with the hope of 带着某种希望7．He used to walk to his fields twice a day, but now he prefers to ride his motorcycle.used to 过去常常（现在已经不是如此）be used to doing 意思是“习惯于”prefer to do (rather than do) 相比之下更喜欢做某事8．But whatever they grow they make sure that what is left in the ground after harvesting becomes a natural fertilizer for the next year’s crop.whatever引导让步状语从句，表示“无论怎样”，相当于no matter what.Eg: Whatever you do, don’t give up.Step 2．功能句型建议（Suggestion & advice）I would rather …I don’t like … because …I’d prefer … because …It’s a great pity that …Sh ould we/I …?It’s better to …If I have a choice I’d choose … because … You need to …May I suggest …? Let me suggest … because …Perhaps we should suggest … because … But what/how about …?Step 3. 重点单词及短语单词① hunger n. 饥饿，食欲；v. 渴望得到某事物，某人hunger for/after sth./sb.② struggle vi. stuggle with sb. 与某人争斗，搏斗struggle (against/with sb./sth.)struggle against/with sb./sth. (for sth.) 争斗，拼搏，奋斗，努力③ expand vi. (使某事物)变大，增强，伸展，张开expand on sth. 阐述或详述expansion n. 扩大，扩展，膨胀④ equip vt.equip sb./sth. (with sth.) 配备，装备equipment n. 设备，装备⑤ export vt. 输出；n. 出口业，出口品import vt. 进口⑥ circulate vi. vt. 使某物循环，流通，传播；vt. 发侧知告知某人circulation n. 循环，流传，传播⑦ confuse vt. 把某人弄糊涂，使为难，打乱confusion n. 混乱，混淆⑧ reduce vt. 缩减，减小，降低reduction n. 减少，缩小⑨ supply vt. 供给，供应，满足；n. 供应，供给之物⑩ exchange vt. 交换，交易；n. 交换，更换，互访，交流exhange sth. with sth.exchangeable adj. 可交换的，可退换的，可兑换的短语rid … of清除，摆脱be satisfied with = be contented 感到满足，满意的would rather do sth. 宁可做某事refer to 与…有关，关系到某人，某事，提到，参考search for 寻找，搜寻thanks to 多亏，由于rather than 而不，宁愿…而不Unit2 Working the landWarming Up, Pre-reading and Reading Period 1 Warming up and pre-reading.Step 1 Lead-in.Poem By Li ShenFarmers weeding at noon,Sweat down the field soon.Who knows food on a tray,Due to their toiling day.Then let one student recite the poem in Chinese.Step 2 Warming up by questioningHello, everyone. We shall read about man who works the land today. Have you ever grown any plants? If not, what kind of plant would you like to grow? How will you grow it?(For reference: Mr. Li, I worked with my father in the rice field last year. We grow hybrid rice and use animal wastes to make the soil rich.)Has anyone of you ever been to the countryside? What did you do there?(For reference: I went to Chuankou the day before yesterday. It is a small mountain village 75 li north of Beijing. I went there to visit my uncle’s family. I like that small beautiful village very much. )Who are from a farmer’s family? What do you know about farming?Step 3 Pre-reading and talkingQuestioning and answeringRice is main food in South China. What do you think would happen if tomorrow there was suddenly no rice to eat?(For reference: Then the south people would have to change their eating habit. They could turn to potatoes, wheat flour, cow and sheep cheese, cabbage, onions and garlic for food. They are the bases of the traditional food in North China. )If you had the chance to do one thing to help end hunger in the world, what would you do?(For reference: I would try to end hunger by popularizing the advanced farming techniques. Modern techniques could be introduced to increase the rice output, and expand the area of fields.)Giving background information about Professor Y uan LongpingHave you ever heard of a man called Professor Yuan Longping? Would anyone of you tell the class something about him?(For reference: Professor Y uan Longping is a Chinese agricultural scientist. Professor Yuan's breakthrough scientific achievement led to the world's first successful and widely grown hybrid rice varieties, revolutionizing rice cultivation in China and tripling production over a generation. His approach to rice breeding then spread internationally throughout Asia and to Africa and the Americas, providing food for tens of millions and leading to his becoming known as the "Father of Hybrid Rice."Step 4. ReadingReading aloud to the recordingComprehension—understanding what you are reading—is important. To read in thought groups is an easy, yet effective, way of improving reading comprehension. Now turn to page 9 and read aloud to the recording of the text A PIONEER FOR ALL PEOPLE. Pay attention to the thought groups in the sentences while listening and reading aloud.A brief introduction:Yuan Longping is known as China’s “father of hybrid rice”. It’s said that in China, we eat depending on “Two Ping” ---- Deng Xiaoping, who made the policy of System of Production Responsibility, & Yuan Longping, who invented hybrid rice.Yuan Longping, who was born in September, 1930, graduated from Agriculture Department in Southwest Agricultural Institute. He has been working on agriculture education &the research into hybrid rice since he left the institute.In the 1960s, when China was suffering from serious famine, he came up with the idea of hybrid rice, which has a high yield ( or output). Ten years later, he succeeded in inventing a new species that produced a 20 percent higher yield than common types of rice.Yuan devoted himself to the research into agriculture, & was honored by UNESCO & FAO(联合国教科文组织）. Although he is 74 years old, he is still working on the research into agriculture.Period 2 ReadingStep 1 Lead-in。