Unit5 Period 1 Reading and Thinking (Ⅰ) （课件PPT）-【金榜题名】2026-2027学年高二英语选择性必修第一册高中同步学案（人教版）

该高中英语课件围绕“Working the Land”主题，整合气候变化与粮食危机、袁隆平事迹及菲律宾植树法案等内容，通过课前新词短语预习、袁隆平信息梳理搭建基础，课堂以正误判断、段落匹配等活动衔接语篇理解，构建从词汇到主题探究的学习支架。 其亮点在于融合语言能力与文化意识、思维品质培养，如通过袁隆平事迹阅读渗透奉献精神，菲律宾植树法案语篇训练信息提取与推理能力。采用“预习-探究-演练”结构化设计，助力学生提升语言运用与问题解决能力，教师可借助此资料高效开展主题式教学，激发学生跨文化理解与社会责任感。

Unit 5　Working the Land Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Period 1　Reading and Thinking (Ⅰ) 语篇研读课 Unit 5　Working the Land 返回导航 1 目录 contents Part 01 课前 知识储备 Part 02 课堂 优化探究 Part 04 课时作业 Part 03 随堂 达标演练 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 课前 知识储备 返回导航 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 课堂 优化探究 返回导航 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 随堂 达标演练 返回导航 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 Unit 5　Working the Land 返回导航 1 课时作业（十七） 点击进入 word Unit 5　Working the Land 返回导航 1 谢谢观看 Unit 5　Working the Land 返回导航 1 Climate change could trigger an international food crisis Half of the world’s population could face food shortages by the end of this century due to climate change，a new study warned. According to researchers，there is a 90 percent probability that by 2100 the minimum temperatures in the tropics and sub­tropical regions will be higher than the maximums so far recorded in these areas. The effect on crop­growing in these regions would be terrible，according to the projections based on direct observations and data collected from 23 computer models on the planet’s evolving climate patterns. “The stresses on global food production from temperature alone are going to be huge，and that doesn’t take into account water supplies stressed by the higher temperatures，” said David Battisti，a University of Washington atmospheric sciences professor. In the tropics，the warmest temperatures will cut maize and rice harvests by 20 to 40 percent，the researchers said.The hotter weather will also reduce the moisture in the soil，cutting yields even further. Some three billion people，or half of the world’s population，currently live in tropical and sub­tropical regions，and their number is set to double by the end of the century. These regions stretch from northern India，southern China to much of Australia and all of Africa，and also extend from the southern United States to northern Argentina and southern Brazil. 气候变化可能引发国际粮食危机 一项新的研究警告称，由于气候的变化，预计到本世纪末全球将有一半的人口面临粮食短缺。 研究人员称，到2100年，热带和亚热带地区的最低温度将超过这些地区迄今为止出现过的最高温度，出现这一变化的可能性达到90%。 通过直接观察和分析23个全球气候变化模式的计算机模型的数据，(研究人员做出预测，)气候变化将对这些地区的作物栽培造成十分可怕的影响。 华盛顿一所大学的大气科学教授大卫·巴蒂斯提说：“气温本身对于全球粮食生产的压力将十分巨大，这还没有考虑高温所导致的水供应的问题。” 研究人员称，极端高温将导致热带地区的玉米和大米产量下降20%至40%。此外，高温还会减少土壤中的水分，造成(粮食)产量进一步下降。 目前全球有一半、约30亿的人口居住在热带和亚热带地区，到本世纪末，这些地区的人口还将增加一倍。 这些地区从印度北部、中国南部延伸到澳大利亚大部分地区、非洲全境，从美国南部扩展到阿根廷北部以及巴西南部。 [素养要求] 1．Read A PIONEER FOR ALL PEOPLE and try to understand its main ideas as well as details. 2．Learn to use some reading strategies such as skimming，scanning，and guessing the meaning of key sentences. 3．Use the given adjectives and sentence structures to describe a famous person. 4．Learn to seek harmony between man and nature. Ⅰ.新课新词 结合语境，根据首字母写出正确单词。 1．It was reported that there was a great s hortage of relief materials in many hospitals when the virus broke out. 2．Even the most serious disasters can be t ackled by the Chinese people. 3．They want the government to take action to b oost 　the economy. 4．The two groups of children have quite different c haracteristics　. 5．After much hard work，he a ttained a good mark in the examination. 6．Doctors find it difficult to beat the COVID­19(新型冠状病毒肺炎)with c onventional medical knowledge. 7．It is e stimated that the project will last four years. 8．Marty o vercame a lot of difficulties and got some a chievements. 9．The ancient city walls were pulled down and the urban area was e xpanded　. 10．Gas and oil c onsumption always increases in cold weather. Ⅱ.熟记短语 1．　devote　...to 把……用于；献身；致力；专心 2．in crisis 危机中 3．be convinced of　确信 4．be comprised of 由……组成(或构成) 5．deep down 在内心深处；本质上；实际上 6．turn...into reality 把……变成现实 Ⅲ.浅触课文 1．阅读A PIONEER FOR ALL PEOPLE，学习袁隆平的无私奉献精神。 2．结合文章信息，完成以下关于袁隆平的信息。 Name：　Yuan Longping　 Nationality：　China　 Age：　90　 Occupation：　Rice Researcher　 Education：　Southwest Agricultural College　 Dream： Hybrid rice boosts yields and seawater rice increases planting areas　 Achievement：　Father of hybrid rice　 Step 1　Pre­reading Scan the text and tell which is true(T) or false(F). 1．Yuan Longping considered himself a farmer.( ) 2．Yuan Longping’s parents wanted him to pursue a career in science or agriculture. ( ) 3．Yuan Longping cultivated the first hybrid rice when he was 44 years old.( ) 4．About 60% of the rice consumed worldwide is produced by Yuan Longping’s hybrid rice.( ) 5．Yuan Longping is still working hard for his dream until now. ( ) 答案：1.T　2.F　3.T　4.F　5.T Step 2　While­reading Scan the text and match the general idea of each paragraph. 1．Para.1　A.Yuan Longping did much research，overcame varieties of difficulties and succeeded. 2．Para.2 B．Yuan Longping continues to support agriculture research. 3．Para.3　C．Yuan’s innovation has helped many countries. 4．Para.4 D．Yuan Longping regards himself as a farmer. 5．Para.5 E．Yuan Longping is old but still full of dreams. 6．Para.6　F．Yuan Longping chose to study agriculture. 答案：1.D　2.F　3.A　4.C　5.B　6.E Step 3　Careful­reading Read the text and choose the best answers. 1．Why does Yuan Longping think he is a farmer? A．Because he has been studying hybrid rice throughout his life. B．Because he works continuously in the field for his research. C．Because he chose agriculture as his career. D．Because he has a slim but strong body like a farmer. 答案：B 2．Which of the following statements about Yuan Longping is wrong? A．He didn’t choose the major his parents wanted him to study. B．He studied agriculture to deal with the crisis of food shortage. C．He didn’t promote his hybrid strains to be grown abroad. D．He donated a lot of money to agricultural research. 答案：C 3．What impresses people most about Yuan Longping is______． A．his ability to constantly realize his dreams B．his immeasurable contributions to the mankind C．his selfless devotion to agriculture D．his insistence on solving the crisis of food shortage 答案：A 4．From the passage，we can infer that______． A．Yuan Longping has solved the problem of food shortage in China B．Yuan Longping’s hybrid strains are grown all over the world C．Yuan Longping will retire to a life of leisure soon D．Yuan Longping will continue to work hard for his dreams 答案：D Step 4　Post­reading Fill in the blanks according to the text. Yuan Longping is known 1. ______the “father of hybrid rice”．Famous scientist as he is，he considers 2. ______ (he) a farmer.As a young man，Yuan Longping found that farmers often had poor harvests and sometimes even had a serious 3. ______ (short) of food to eat.At the time farmers needed to boost yields in the fields.Yuan Longping believed that the answer could 4. ______ (find) in the creation of hybrid rice.In 1974 Yuan overcame enormous 5. ______ (technology) difficulties and finally developed the first hybrid rice that could be used for farming.Thanks to his research，about 60 per cent of domestic rice consumption in China is comprised of crops，and his strains 6. ______ (allow) China’s farmers to produce around 200 million tonnes of rice per year.This also helps many other countries 7. ______depend on rice.As a result，Yuan Longping has been awarded many times both in China 8. ______abroad.Now he is old，but he makes large donations to support agriculture research.At 9. ______same time he is still full of dreams.His latest vision for “seawater rice” has also become a reality，and everyone is waiting 10. ______ (see) what he will dream up next. 答案：1.as　2.himself　3.shortage　4.be found 5.technological　6.have allowed　7.that/which 8．and　9.the　10.to see The Philippines，a tropical island nation in the Pacific，will now require by law all graduating students from elementary school to college plant 10 trees each before they can graduate. The law was supported in the House and is now sent to the Philippines Senate for action.Supporters of the law see this as an opportunity for the Filipino youth to help deal with climate change and air pollution and build a greener environment for their generation. “To this end，the educational system shall be a centre of spreading continuous use of natural resources among the young to make them socially­responsible citizens” the House bill stated，which was authored by representative Gary Alejano. Alejano estimates that over the course of one generation the bill will be responsible for 525 billion trees planted.This comes from over 12 million students graduating from elementary school each year，5 million from high school and 500，000 from college，equaling 175 million new trees planted each year. The Philippines consists of 7，641 islands in Southeast Asia.Across those islands，deforestation has been a primary environmental issue.Agriculture has led to a significant drop in forested areas across the Philippines.Through the 20th century，forested area in the Philippines decreased from 70 percent to 20 percent.It is estimated that 24.2 million acres of forests were cut down from 1934 to 1988，primarily from logging. The performance of this new law could set off a situation，by which the Philippines switches from net loss to net gain of trees，a simple and powerful message to the Filipino youth with the potential for long term positive influence. 【语篇解读】　本文为说明文。根据菲律宾的法律规定，从小学到大学的所有毕业生在毕业前必须每人种植10棵树。这项法案得到了众议院的支持，现在已经提交到菲律宾参议院进行行动，法案的支持者认为这是菲律宾年轻人帮助应对气候变化和空气污染的一个机会，并为他们这一代人建立一个更绿色的环境。 1．Why does the Philippines make the law to plant trees? A．To create a better environment to live in. B．To show the government is taking action. C．To make sure students can graduate easily. D．To raise people’s awareness of education. 解析：选A　推理判断题。根据第二段中的Supporters of the law see this as an opportunity for the Filipino youth to help deal with climate change and air pollution and build a greener environment for their generation.(法案的支持者认为这是菲律宾年轻人帮助应对气候变化和空气污染的一个机会，并为他们这一代人建立一个更绿色的环境)可推知，菲律宾要制定植树法律的目的是为了创造一个更好的生活环境。故A选项正确。 2．What does Alejano think is important? A．Natural resources. B．The future generation. C．Powerful messages. D．The educational system. 解析：选D　细节理解题。根据第三段中的To this end，the educational system shall be a centre of spreading continuous use of natural resources among the young to make them socially­responsible citizens(为此目的，教育系统应成为在年轻人中不断使用自然资源的中心，使他们成为对社会负责的公民)可知，Alejano认为教育系统是很重要的。故D选项正确。 3．How many trees will high school graduating students plant each year? A．5 million. B．50 million. C．120 million. D．175 million. 解析：选B　数字计算题。根据第一段中的all graduating students from elementary school to college plant 10 trees each before they can graduate.(从小学到大学的所有毕业生在毕业前必须每人种植10棵树)及第四段中的5 million from high school(500万高中生)可知，10*5 million＝50 million.故B选项正确。 4．What has caused a sharp drop in forests across the Philippines? A．Aloss of soil. B．Agriculture. C．Climate change. D．Air pollution. 解析：选B　细节理解题。根据倒数第二段中的Agriculture has led to a significant drop in forested areas across the Philippines.可知，农业导致了整个菲律宾森林面积的显著下降。故B选项正确。 $$