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【高二学案20】人教版高中英语选择性必修一 Unit 5 Working the Land 课时4 写作学案
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【高二学案20】人教版高中英语选择性必修一 Unit 5 Working the Land 课时4 写作学案
作者：Risibo
一、学习目标
知识目标
掌握粮食安全议论文三段写作框架；积累农业、科研奉献万能句型，融合动名词、定语从句、让步状语从句升级句式。
能力目标
完成词汇填空、句式改写、汉译英、短文改错、段落仿写；写出100词左右观点类议论文。
学科素养目标
树立节约粮食、重视粮食安全意识，学习农业科研者奉献精神，培养社会责任感。
二、教学重难点
重点
三段正反对比议论文结构；动名词、定语从句在农业话题写作高频运用。
难点
利弊论证逻辑清晰，事例贴合袁隆平杂交水稻素材，句式丰富不堆砌。
三、课前预习素材
万能词汇
基础：devote, shortage, crisis, expand, yield, preserve, save
高分：hybrid rice, food security, agricultural breakthrough, sustainable development
万能句型
1. What matters most to every country is food security, which is the foundation of people’s lives.
2. Having devoted all his life to rice research, Yuan Longping created hybrid rice to fight hunger.
3. Although great progress has been made, food shortage still troubles many poor areas.
4. Saving food is an effective way to reduce the pressure of global food supply.
5. Devoting ourselves to agricultural research can help us achieve higher grain yields.
四、写作框架
1. 开头段：开门见山，点明粮食安全对国家与民众的重要意义。
2. 中间段：先写杂交水稻带来的巨大成就，再分析全球粮食危机隐患，提出两种解决途径（科研创新、节约粮食）。
3. 结尾段：总结观点，呼吁珍惜粮食、支持农业科研。
五、配套分层课堂训练
训练一：核心词汇填空
用词形正确形式填空：devote, short, crisis, expand, yield, preserve, save, science, contribute, secure
1. Yuan Long ________ all his life to the study of hybrid rice.
2. Many poor areas still face food ________ every year.
3. The world is at risk of food ________ because of climate change.
4. New technology helps farmers ________ grain output year by year.
5. The new rice has a much higher ________ than common kinds.
6. We should ________ our limited farmland from damage.
7. ________ food is a good habit everyone should form.
8. Modern ________ brings great breakthroughs in farming.
9. His research makes great ________ to global anti-hunger work.
10. Hard work helps us ________ our country’s food supply.
训练二：句式改写
示例：Food security is important. It affects everyone’s life.
改写：Food security, which is very important, affects everyone’s life.
1. Yuan devoted himself to rice research. He solved the hunger problem.
2. We have made great progress. Food shortage still exists worldwide.
3. Saving food can cut waste. It eases global food pressure.
4. New farming technology increases yields. It reduces food risks.
5. We support agricultural research. We can better deal with food crisis.
6. Many people waste food. They ignore hidden food risks.
7. Hybrid rice was invented by Yuan. It saves millions of lives.
8. Working hard in fields brings higher grain production.
9. We value food. We show respect for scientists’ efforts.
10. Food safety concerns all nations. It needs joint efforts.
训练三：话题汉译英
1. 对每个国家而言最重要的是粮食安全，它是民生之本。
2. 毕生投身水稻研究的袁隆平研发出杂交水稻对抗饥饿。
3. 尽管我们取得巨大进步，粮食短缺仍困扰许多贫困地区。
4. 节约粮食是缓解全球粮食供给压力的有效办法。
5. 投身农业科研能帮助我们实现更高粮食产量。
6. 气候变化加剧了全球粮食危机，各国需共同应对。
7. 袁隆平团队研发的杂交水稻拯救了数百万饥饿民众。
8. 先进农业技术能够持续扩大粮食产出、降低粮食风险。
9. 珍惜粮食就是向所有农业科研工作者致敬。
10. 只有科研与节约并行，我们才能守住粮食安全底线。
训练四：短文单句改错，每题一处错误
1. Food security be the foundation of people’s daily life.
2. Devote to rice research, Yuan invented hybrid rice.
3. Although we made progress, food shortage still exist.
4. Save food help reduce global food pressure.
5. New tech expand grain output and lower risks.
6. Many people waste food ignore food crisis.
7. Hybrid rice invent by Yuan saves millions lives.
8. Work hard in fields bring higher yields.
9. We should value food show respect to scientists.
10. Food security need joint efforts of all countries.
训练五：段落仿写
仿写要求：至少使用1处动名词作主语、1个定语从句、1个让步状语从句，选用3个以上单元核心词汇
1. 仿写开头段：点明粮食安全的重要性
2. 仿写中间段：论述杂交水稻成就与粮食隐患、解决方式
3. 仿写结尾段：发出珍惜粮食、重视农业科研的呼吁
六、真题写作任务
题目：Food Security
词数：100词左右
写作要点
1. 粮食安全的重要性；
2. 袁隆平杂交水稻带来的贡献，同时存在粮食危机；
3. 我们能做的两件事（科研创新、节约粮食）。
七、得分亮点
1. 灵活运用devote, shortage, yield, crisis等单元核心词汇；
2. 综合动名词、which定语从句、although让步从句丰富句式；
3. 三段正反对比，结合课文袁隆平素材，观点正向完整。
八、参考答案
训练一：核心词汇填空
1. devoted
2. shortage
3. crisis
4. expand
5. yield
6. preserve
7. Saving
8. science
9. contributions
10. secure
训练二：句式改写参考
1. Having devoted himself to rice research, Yuan solved the hunger problem.
2. Although we have made great progress, food shortage still exists worldwide.
3. Saving food can cut waste and ease global food pressure.
4. New farming technology which increases yields reduces food risks.
5. Supporting agricultural research, we can better deal with food crisis.
6. Many people waste food, ignoring hidden food risks.
7. Hybrid rice invented by Yuan saves millions of lives.
8. Working hard in fields brings higher grain production.
9. Valuing food shows respect for scientists’ efforts.
10. Food security, which concerns all nations, needs joint efforts.
训练三：话题汉译英
1. What matters most to every country is food security, which is the foundation of people’s lives.
2. Having devoted all his life to rice research, Yuan Longping developed hybrid rice to fight hunger.
3. Although we have made great progress, food shortage still troubles many poor areas.
4. Saving food is an effective way to ease the pressure of global food supply.
5. Devoting ourselves to agricultural research can help us achieve higher grain yields.
6. Climate change has worsened the global food crisis, so all countries should work together to deal with it.
7. The hybrid rice developed by Yuan Longping’s team has saved millions of hungry people.
8. Advanced agricultural technology can continuously expand grain output and lower food risks.
9. Valuing food is a way to show respect to all agricultural researchers.
10. Only by combining scientific research with food saving can we stick to the bottom line of food security.
训练四：短文单句改错
1. be → is
2. Devote → Devoted
3. exist → exists
4. help → helps
5. expand → expands
6. ignore → ignoring
7. invent → invented；millions后加of
8. bring → brings
9. show → to show
10. need → needs
训练五：段落仿写参考
1. What matters most to every country is food security, which determines people’s basic lives.
2. Having devoted all his life to research, Yuan created hybrid rice and increased yields greatly. Although we have made achievements, food crisis still exists. Saving food and supporting agricultural research are two useful solutions.
3. We should form the habit of saving food and value scientific research to keep our food secure.
真题写作参考范文
Food Security
What matters most to every country is food security, which is the foundation of people’s daily lives.
Having devoted all his life to rice research, Yuan Longping invented hybrid rice and solved large-scale hunger problems. Although we have made great progress, food shortage still troubles poor areas. We can deal with it in two ways: developing new farming technology and saving food in daily life.
In my opinion, everyone should cherish food and support agricultural research to ensure global food security.
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