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人教2019版选择性必修一英语Unit 5 Working the Land Learning About Language 教学评一体化设计（全套教案+学案+测评案｜全程学法渗透）
（词汇语法课｜农业主题｜动词不定式作主语和表语｜）
第一部分 教案
一、基本信息
1.课题：Unit 5 Working the Land Learning About Language——Discover Useful Structures
2.课时：1课时（45分钟）
3.授课年级：高二
4.学科：高中英语
5.教材内容：本课为单元第3课时（词汇语法课），聚焦本单元的目标语法结构——动词不定式作主语和表语（The Infinitive as the Subject and Predicative）。语法素材选自本单元Reading and Thinking板块的人物传记“A Pioneer for All People”，以及课本Activity中的相关语篇。本课旨在帮助学生在熟悉的“耕耘土地”主题语境中感知、归纳并运用动词不定式作主语和表语的语法规则，包括其基本用法、it作形式主语的常见句式、不定式复合结构，以及与动词-ing形式作主语和表语的对比。
6.学情分析
高二学生已完成本单元Reading and Thinking板块的学习，对袁隆平及其杂交水稻的贡献已有较深入的了解，具备一定的相关主题词汇积累。学生在之前的必修课程中已系统学习过动词-ing形式作主语和表语（Unit 3 Fascinating Parks Learning About Language），对非谓语动词作主语和表语的基本概念有一定认知。但学生仍存在以下短板：不掌握“观察—发现—归纳—练习—运用”的语法学习流程；对动词不定式作主语和表语的具体用法不够系统；对it作形式主语的常见句式（It is + adj./n. + to do...）掌握不够熟练；对不定式复合结构（for sb. to do sth. / of sb. to do sth.）的用法不够清晰；对不定式与动词-ing形式作主语和表语在语义上的差异理解不深；在写作中不能自觉运用不定式丰富句式。本课以农业主题为语法载体，依托英语学习活动观，落实“教—学—评”一体化闭环教学模式，通过观察发现、归纳总结、对比分析、分层操练等环节，帮助学生掌握动词不定式作主语和表语的用法，同时加深对本单元主题意义的理解。
7.学科核心素养目标
（1）语言能力：掌握动词不定式作主语的基本结构（To do...is...）、it作形式主语的常见句式（It is + adj./n. + to do...）、不定式复合结构（for sb. to do sth. / of sb. to do sth.）；掌握动词不定式作表语的基本用法（表示主语的具体内容、表示将来动作或安排）；能正确区分不定式与动词-ing形式作主语和表语的差异；能运用不定式作主语和表语描述农业与人物品质。
（2）文化意识：通过语法练习中涉及的袁隆平事迹和农业主题语篇，加深对农业科学家奉献精神的理解；增强对粮食安全问题的关注与节约粮食的意识。
（3）思维品质：通过观察例句、发现规律、归纳总结，培养观察能力与归纳思维；通过对比不定式与动词-ing形式作主语和表语的异同，培养分析与比较能力；通过语法应用与表达，培养创造性思维与迁移能力。
（4）学习能力：掌握“观察—发现—归纳—练习—运用”的语法学习流程；学会借助语境理解语法规则的用法；培养合作学习与自主反思能力。
8.教学重难点
（1）教学重点：掌握动词不定式作主语的基本结构（To do...is...）和it作形式主语的常见句式；掌握不定式作表语的两种用法（表示主语内容、表示将来动作/安排）；掌握不定式复合结构的用法（for sb. / of sb. + to do）；掌握不定式与动词-ing形式作主语和表语在语义上的区别。
（2）教学难点：准确把握不定式与动词-ing形式作主语在语义上的差异（具体vs.抽象/习惯）；正确选择for sb.与of sb.引导不定式复合结构（取决于形容词描述的是行为还是人的品质）；在真实语境中灵活运用不定式作主语和表语进行表达。
9.教学准备：多媒体课件（含语法例句、对比表格、练习素材）；语法任务单（含观察、归纳、练习等分层任务）；动词不定式作主语和表语知识导图；农业主题拓展素材；语法评价量表。
10.教学方法：任务型教学法、对比教学法、归纳教学法、合作学习法、教学评一体化闭环教学法。
11.学法指导：引导学生固化“观察—发现—归纳—练习—运用”的语法学习路径；指导学生通过观察例句发现不定式作主语和表语的形式特征和功能；指导学生掌握it作形式主语的常见句型；指导学生对比不定式与动词-ing形式作主语和表语的差异。
二、教学过程
（一）语境导入·激活旧知（5分钟）
1.旧知回顾：呈现Reading and Thinking语篇中含有不定式的句子，引导学生识别其功能。
例句：
（1）To tackle this crisis, he chose to study agriculture.
（2）Yuan Longping's vision was to produce a kind of rice that could feed more people.
（3）It is estimated that about 60 percent of domestic rice consumption in China is comprised of crops from his hybrid strains.
2.提问引导：提问学生：What function does the infinitive play in each sentence 引导学生观察并回答——句（1）中的to tackle作目的状语，句（2）中的to produce作表语，句（3）中的It是形式主语。
3.情境导入：呈现更多关于农业和科学家的句子（如：To feed the world's growing population is a great challenge. / His dream is to see hybrid rice covering the world.），引导学生总结不定式的两种语法功能——作主语和表语。
4.课题点明：Today we will learn the infinitive as the subject and predicative. We will learn to understand its form, function, and usage, and use it to describe agriculture and people of achievement.
5.学法渗透：语法学习有方法——先观察例句发现形式特征，再归纳总结规则，最后通过练习巩固和运用。
（二）观察发现·探究规律（12分钟·核心重点）
活动一 观察例句·发现形式特征（4分钟）
1.任务要求：观察以下例句，找出不定式作主语和表语的共同特点。
例句：
（1）To feed the world's growing population is a great challenge.
（2）To develop hybrid rice was not an easy task.
（3）His goal is to increase rice production.
（4）Yuan Longping's vision was to produce a kind of rice that could feed more people.
（5）To see the smile on farmers' faces is the greatest reward.
（6）The key is to find the right plant.
2.观察引导：引导学生从以下维度进行观察：
（1）不定式的位置（主语位于句首；表语位于系动词之后）
（2）不定式的时态和语态形式（一般式、被动式、完成式）
（3）不定式与主语的逻辑关系
3.学生发现与归纳：
（1）不定式作主语：位于句首，谓语动词用单数形式。
（2）不定式作表语：位于系动词（be, seem, remain, appear等）之后。
（3）不定式形式：to do（一般式）；to be done（被动式）；to have done（完成式）。
4.策略指导：观察语法现象时，要从位置、功能、意义三个维度进行系统观察。
5.过程评价：对观察仔细、发现准确的学生进行口头表扬。
活动二 深入探究·掌握特殊用法（4分钟）
1.任务要求：观察以下例句，归纳it作形式主语的用法和不定式复合结构的用法。
（1）It is important to study agriculture.
（2）It is not easy to develop new crop varieties.
（3）It takes a lot of time to conduct research.
（4）It is a good idea to use hybrid rice to solve hunger.
（5）It is difficult for farmers to get enough water.
（6）It is kind of you to help the farmers.
2.探究引导：引导学生思考以下问题：
（1）句（1）-（4）中it在句中起什么作用？真正的主语是什么？
（2）句（5）和句（6）中不定式前面的for farmers和of you是什么成分？
3.学生归纳：
（1）it作形式主语：当不定式短语较长时，常用it作形式主语，将真正的主语（不定式短语）后置，避免句子头重脚轻。常见句型：
It is + adj. + to do...（It is important to...）
It is + n. + to do...（It is a good idea to...）
It takes + time + to do...（It takes a lot of time to...）
It costs + money + to do...（It costs a lot of money to...）
（2）不定式复合结构：for sb. to do sth.（形容词描述行为特征，如difficult, important, easy, hard等）；of sb. to do sth.（形容词描述人的品质，如kind, nice, foolish, wise, generous等）
4.策略指导：for sb.与of sb.的选择取决于形容词的性质——若形容词描述事物的特征（difficult, important等），用for sb.；若形容词描述人的品质（kind, foolish等），用of sb.。
活动三 对比分析·区分异同（4分钟）
1.任务要求：对比不定式与动词-ing形式作主语和表语在语义上的差异。
（1）作主语：
To study agriculture is important.（强调具体行为）
Studying agriculture is interesting.（强调抽象/习惯行为）
（2）作表语：
His dream is to develop hybrid rice.（表示将来的目标/计划）
His job is developing hybrid rice.（表示现在的工作内容）
2.归纳总结：
对比维度 不定式 动词-ing形式
作主语 表示具体的、一次性的动作或未来的行为 表示抽象的、习惯性的或一般性的行为
作表语 表示将来的目标、计划或愿望 表示一般性的内容或特征
可互换 有时可以互换，但含义有细微差别 有时可以互换，但含义有细微差别
3.策略指导：掌握不定式与动词-ing形式作主语和表语的语义差异，有助于在表达时做出更准确的选择。一般来说，不定式更强调“具体行为”和“将来目标”，动词-ing形式更强调“一般概念”和“习惯行为”。
（三）词汇拓展与巩固（3分钟）
1.词汇检测：呈现本单元词汇练习，完成词形转换填空。
词汇清单：agriculture→agricultural, consume→consumption, generate→generation, devote→devotion, short→shortage, estimate→estimation, etc.
2.词汇运用：运用上述词汇完成句子，并注意不定式的运用。
例句：
（1）To increase agricultural ________ (produce) is a key task.
（2）It is important ________ (reduce) food waste.
（3）His goal is ________ (feed) more people with less land.
3.过程评价：对词汇填空准确的学生进行口头表扬。
（四）分层操练·巩固应用（18分钟）
活动一 基础操练·句型转换与填空（6分钟）
1.句型转换：将下列句子改为不定式作主语的句子。
（1）To feed the world's growing population is a great challenge.
→ 保持原句（已是不定式作主语）
（2）It is important to study agriculture.
→ To study agriculture is important.
（3）It is not easy to develop new crop varieties.
→ To develop new crop varieties is not easy.
（4）It takes a lot of time to conduct research.
→ To conduct research takes a lot of time.
2.用所给动词的适当形式填空（不定式作表语）：
（1）Yuan Longping's goal was ________ (develop) hybrid rice.
→ to develop
（2）His dream is ________ (see) farmers smile.
→ to see
（3）The key is ________ (find) the right plant.
→ to find
（4）Our task is ________ (solve) the food shortage problem.
→ to solve
3.策略指导：句型转换时注意保持句意不变；不定式作表语时，通常表示主语的具体内容、目标或计划。
4.核对答案：师生共同核对，重点关注不定式的选择。
活动二 提升操练·it作形式主语与复合结构（6分钟）
1.用it作形式主语改写句子：
（1）To understand the importance of agriculture is necessary.
→ It is necessary to understand the importance of agriculture.
（2）To produce more food with less land is challenging.
→ It is challenging to produce more food with less land.
（3）To learn from Yuan Longping's spirit is meaningful.
→ It is meaningful to learn from Yuan Longping's spirit.
（4）To reduce food waste is a good way to save resources.
→ It is a good way to save resources to reduce food waste.
2.用for sb.或of sb.完成不定式复合结构：
（1）It is important ________ us to protect farmland.
→ for
（2）It is kind ________ you to help the farmers.
→ of
（3）It is difficult ________ farmers to get enough water.
→ for
（4）It is wise ________ us to learn from Yuan Longping.
→ of
（5）It is generous ________ him to share his research with other countries.
→ of
（6）It is necessary ________ scientists to continue their research.
→ for
3.小组核对：同桌互查答案，讨论选择依据。
4.展示点评：抽取学生展示答案，师生共同点评。
活动三 拓展运用·迁移创新（6分钟）
1.任务要求：运用本课所学语法知识，写一段介绍袁隆平或农业重要性的短文（60词左右），至少使用3个不定式作主语或表语的句子。
2.写作框架与素材提示：
框架（不定式作主语）：
（1）To ________ is ________.
（2）It is important/necessary to ________.
（3）To ________ is a great ________.
框架（不定式作表语）：
（1）His/Her dream is to ________.
（2）The goal is to ________.
（3）One of the key tasks is to ________.
3.参考范文：
To develop hybrid rice was Yuan Longping's life mission. It was not an easy task to succeed in this research. His dream was to see farmers smile and to feed more people. It is important for us to remember his contributions and to continue his work. The best way to honour him is to value every grain of food and to reduce waste.
4.展示互评：抽取2-3名学生作品展示，师生依据评价量表共同点评（语法准确性、内容完整性、语言流畅度）。
5.素养升华：引导学生理解——农业是国之根本，粮食安全事关每一个人。袁隆平的一生告诉我们：个人的梦想可以与国家、人民的福祉紧密相连。掌握不定式作主语和表语的用法，不仅能够提升语言能力，更能帮助我们更准确地表达对农业科学家奉献精神的敬意，以及对粮食安全问题的关注。
（五）课堂小结（3分钟）
1.知识小结：梳理动词不定式作主语的基本结构、it作形式主语的常见句式、不定式作表语的两种用法、不定式复合结构、不定式与动词-ing形式作主语和表语的区别。
2.能力小结：回顾“观察—发现—归纳—练习—运用”的语法学习流程，反思掌握情况。
3.素养小结：理解农业科学家的奉献精神与粮食安全的重要性，增强节约粮食的意识。
（六）当堂检测（2分钟）
1.口头检测：随机抽查一名学生说出it作形式主语的两种常见句型。
2.书面微练：完成1-2个不定式作主语或表语的填空，当堂巩固。
（七）分层作业（2分钟）
基础层：背诵不定式作主语和表语的语法规则与常用句型；整理课堂笔记，制作不定式作主语和表语的知识思维导图；完成课本P53 Activity 3语篇填空。
提升层：将5个“It is...to do...”的句子改写为不定式作主语的句子；写一段80词左右的短文，介绍袁隆平的事迹或农业的重要性，至少使用4个不定式（含作主语和作表语）。
拓展层：以“The Importance of Agriculture”为题，写一篇100词左右的英语短文，运用不定式作主语和表语阐述农业对人类的重要性；调查并记录日常生活中的粮食浪费现象，用英语写出简要报告并提出节约建议。
三、板书设计
Unit 5 Working the Land Learning About Language
The Infinitive as the Subject and Predicative
1.Infinitive as Subject:
To do...is... （To feed the world is a challenge.）
It作形式主语：
It is + adj. + to do... （It is important to...）
It is + n. + to do... （It is a good idea to...）
It takes/costs + ... + to do... （It takes time to...）
2.Infinitive as Predicative:
To do... （His dream is to feed the world.）
Two meanings:
① Specific content/goal （目标/计划）
② Future action/arrangement （将来动作/安排）
3.Compound Structure:
for sb. to do sth. （行为特征：difficult, important, easy, hard...）
of sb. to do sth. （人的品质：kind, nice, foolish, wise, generous...）
4.Comparison: Infinitive vs. -ing Form
Infinitive -ing Form
Subject specific, one-time actions abstract, habitual actions
Predicative future goals/plans general content/characteristics
5.Learning Path:
Observe → Discover → Summarize → Practice → Apply
6.Theme:
To work the land is to feed the world.
四、教后反思
本课以农业主题为词汇与语法载体，严格落实“教—学—评”一体化理念。教学流程遵循“导入—观察发现—探究规律—对比分析—分层操练—小结—检测—作业”的闭环模式。通过观察法引导学生发现不定式作主语和表语的规则，通过对比法帮助学生理解不定式与动词-ing形式的差异，通过分层练习覆盖全体学生，有效帮助学生掌握不定式作主语和表语的用法，同时渗透粮食安全意识。
现存不足：部分学生对it作形式主语的常见句式掌握不够熟练，在运用中容易遗漏to；对不定式复合结构中for sb.与of sb.的选择不够清晰；对不定式与动词-ing形式作主语和表语的语义差异理解不够深入；在写作中，部分学生不能自觉运用不定式丰富句式。
后续改进：增设it作形式主语句式的专项记忆训练，帮助学生牢固掌握；提供更多for sb.与of sb.的对比练习，帮助学生掌握选择依据；增设不定式与动词-ing形式作主语和表语的对比专项练习，强化语义差异的理解；在写作任务中提供更多支架与示范，引导学生逐步运用不定式。
第二部分 学案
Unit 5 Working the Land Learning About Language 导学案
班级：__________ 姓名：__________
学号：__________ 得分：__________
一、学习目标
1.掌握动词不定式作主语的基本结构（To do...is...）和it作形式主语的常见句式。
2.掌握动词不定式作表语的基本用法（表示主语的具体内容、表示将来动作或安排）。
3.掌握不定式复合结构的用法（for sb. / of sb. + to do）。
4.能正确区分不定式与动词-ing形式作主语和表语的语义差异。
5.能运用不定式作主语和表语描述农业与人物品质。
二、预习导学
（一）核心语法术语英汉互译
英文：1.infinitive 中文：__________
英文：2.subject 中文：__________
英文：3.predicative 中文：__________
英文：4.formal subject 中文：__________
英文：5.real subject 中文：__________
英文：6.compound structure 中文：__________
英文：7.不定式短语 英文：__________
英文：8.系动词 英文：__________
（二）回顾Reading and Thinking语篇，找出含有不定式作主语或表语的句子
1._________________________________________________________________
2._________________________________________________________________
3._________________________________________________________________
（三）预习思考
1.What is the difference between the infinitive and the -ing form as the subject
→ _________________________________________________________________
2.Can you give an example of the infinitive as the predicative
→ _________________________________________________________________
3.What does “It” refer to in the sentence “It is important to study agriculture”
→ _________________________________________________________________
（四）预习疑点
1._________________________________________________________________
2._________________________________________________________________
三、课中合作探究
（一）观察发现·归纳规则
任务1：观察以下例句，归纳不定式作主语的基本规则
例句：
（1）To feed the world's growing population is a great challenge.
（2）To develop hybrid rice was not an easy task.
（3）To see the smile on farmers' faces is the greatest reward.
归纳：
1.不定式作主语时，位于________，谓语动词用________形式。
2.不定式作主语往往表示________、________的行为或未来的行为。
任务2：观察以下例句，归纳it作形式主语的用法
例句：
（1）It is important to study agriculture.
（2）It is not easy to develop new crop varieties.
（3）It takes a lot of time to conduct research.
（4）It is a good idea to use hybrid rice to solve hunger.
归纳：
1.it在句中作________主语，真正的主语是________。
2.it作形式主语的常见句型有：
It is + ________ + to do...
It is + ________ + to do...
It ________ + time/money + to do...
It ________ + money + to do...
任务3：观察以下例句，归纳不定式复合结构的用法
例句：
（1）It is difficult for farmers to get enough water.
（2）It is kind of you to help the farmers.
（3）It is important for us to protect farmland.
（4）It is wise of him to choose agriculture.
归纳：
1.当不定式有自己的逻辑主语时，用“________ + 不定式”结构。
2.选择for sb.还是of sb.取决于形容词：
形容词描述________（如difficult, important, easy, hard等）时，用________。
形容词描述________（如kind, nice, foolish, wise, generous等）时，用________。
任务4：观察以下例句，归纳不定式作表语的规则
例句：
（1）His dream is to develop hybrid rice.
（2）Yuan Longping's goal was to feed more people.
（3）Our task is to solve the food shortage problem.
（4）The key is to find the right plant.
归纳：
1.不定式作表语时，位于________之后。
2.不定式作表语的两种含义：
（1）表示________，如句（1）（2）。
（2）表示________，如句（3）（4）。
（二）对比分析·区分异同
对比不定式与动词-ing形式作主语和表语在语义上的差异：
对比维度 不定式 动词-ing形式
作主语 ________、________行为或________行为 ________、________行为
作表语 表示________、或 表示________或________
（三）分层操练与运用
任务1：用所给动词的适当形式填空（基础层）
1.________ (develop) hybrid rice was not an easy task.
2.It is important ________ (study) agriculture.
3.It takes a lot of time ________ (conduct) research.
4.His dream is ________ (feed) more people with less land.
5.The key is ________ (find) the right plant.
6.________ (see) farmers smile is the greatest reward.
7.It is not easy ________ (solve) the food shortage problem.
8.Our task is ________ (produce) more food.
任务2：用it作形式主语改写句子（提升层）
1.To study agriculture is important.
→ _________________________________________________________________
2.To develop new crop varieties is not easy.
→ _________________________________________________________________
3.To conduct research takes a lot of time.
→ _________________________________________________________________
4.To reduce food waste is a good way to save resources.
→ _________________________________________________________________
任务3：用for sb.或of sb.完成不定式复合结构（提升层）
1.It is important ________ us to protect farmland.
2.It is kind ________ you to help the farmers.
3.It is difficult ________ farmers to get enough water.
4.It is wise ________ us to learn from Yuan Longping.
5.It is generous ________ him to share his research.
6.It is necessary ________ scientists to continue their research.
任务4：对比填空（拓展层）
用所给动词的适当形式填空（注意不定式与动词-ing形式的区别）：
1.________ (feed) the world is a great challenge.
2.________ (feed) the world has always been a challenge for humans.
3.His goal is ________ (develop) hybrid rice by 1974.
4.His job is ________ (develop) new crop varieties.
5.________ (study) agriculture is interesting.
6.________ (study) agriculture to solve the food crisis is his mission.
任务5：短文写作（拓展层）
运用本课所学语法知识，写一段介绍袁隆平或农业重要性的短文（60词左右），至少使用3个不定式作主语或表语的句子。
四、课堂达标自测
（一）用所给动词的适当形式填空（20分）
1.________ (feed) the world's growing population is a great challenge.
2.It is important ________ (study) agriculture.
3.It takes a lot of time ________ (conduct) research.
4.His dream is ________ (develop) hybrid rice.
5.The key is ________ (find) the right plant.
6.________ (see) farmers smile is the greatest reward.
7.It is not easy ________ (solve) the food shortage problem.
8.Our task is ________ (produce) more food.
9.________ (learn) from Yuan Longping's spirit is meaningful.
10.The goal is ________ (feed) more people.
（二）句型转换（20分）
将下列句子改写为it作形式主语的句子：
1.To understand the importance of agriculture is necessary.
→ _________________________________________________________________
2.To produce more food with less land is challenging.
→ _________________________________________________________________
3.To learn from Yuan Longping's spirit is meaningful.
→ _________________________________________________________________
4.To reduce food waste is a good way to save resources.
→ _________________________________________________________________
5.To conduct research requires a lot of patience.
→ _________________________________________________________________
（三）选择填空（20分）
1.It is important ________ us to protect farmland.
A.for B.of C.to D.with
2.It is kind ________ you to help the farmers.
A.for B.of C.to D.with
3.It is difficult ________ farmers to get enough water.
A.for B.of C.to D.with
4.It is wise ________ us to learn from Yuan Longping.
A.for B.of C.to D.with
5.It is generous ________ him to share his research.
A.for B.of C.to D.with
（四）短文写作（40分）
请以“The Importance of Agriculture”为题，写一篇60词左右的英语短文，阐述农业对人类的重要性。要求：1.运用至少2个不定式作主语的句子；2.运用至少1个不定式作表语的句子；3.运用至少2个本课核心词汇；4.结构完整、语言规范。
导学案参考答案
二、预习导学
（一）1.不定式 2.主语 3.表语 4.形式主语 5.真正主语 6.复合结构 7.infinitive phrase 8.link verb
（二）1.To tackle this crisis, he chose to study agriculture.（不定式作目的状语） 2.Yuan Longping's vision was to produce a kind of rice that could feed more people.（不定式作表语） 3.It is estimated that about 60 percent of domestic rice consumption in China is comprised of crops from his hybrid strains.（It作形式主语）
（三）开放性问题，参考答案略。
（四）开放性问题，参考答案略。
三、课中合作探究
（一）任务1：1.句首；单数 2.具体的；一次性的
（一）任务2：1.形式；不定式短语 2.形容词；名词；takes；costs
（一）任务3：1.for sb. 2.事物的特征；for；人的品质；of
（一）任务4：1.系动词 2.主语的具体内容；将来的动作或安排
（二）对比表：作主语：具体的、一次性的、未来的；抽象的、习惯性的、一般性的；作表语：将来目标、计划、愿望；一般内容、特征
（三）任务1：
1.To develop 2.to study 3.to conduct 4.to feed 5.to find 6.To see 7.to solve 8.to produce
（三）任务2：1.It is important to study agriculture. 2.It is not easy to develop new crop varieties. 3.It takes a lot of time to conduct research. 4.It is a good way to save resources to reduce food waste.
（三）任务3：1.for 2.of 3.for 4.of 5.of 6.for
（三）任务4：1.To feed 2.Feeding 3.to develop 4.developing 5.Studying 6.To study
（三）任务5：参考范文见下。
四、课堂达标自测
（一）
1.To feed 2.to study 3.to conduct 4.to develop 5.to find 6.To see 7.to solve 8.to produce 9.To learn 10.to feed
（二）1.It is necessary to understand the importance of agriculture. 2.It is challenging to produce more food with less land. 3.It is meaningful to learn from Yuan Longping's spirit. 4.It is a good way to save resources to reduce food waste. 5.It takes a lot of patience to conduct research.
（三）1.A 2.B 3.A 4.B 5.B
（四）参考范文：
The Importance of Agriculture
To feed the world's growing population is one of the greatest challenges we face today. It is necessary for us to develop more efficient farming methods. Yuan Longping's goal was to produce more food with less land. He showed us that to work the land is to feed the world. It is important to reduce food waste and to value every grain of food. To learn from scientists like Yuan Longping is meaningful. I am convinced that if we work together, it is possible to solve the food shortage problem.
第三部分 测评案
Unit 5 Working the Land Learning About Language 同步测评
满分：100分 时间：40分钟
姓名：__________ 得分：__________
一、用所给动词的适当形式填空（30分）
1.________ (develop) hybrid rice was not an easy task for Yuan Longping.
2.It is important ________ (protect) farmland.
3.It takes a lot of time ________ (conduct) agricultural research.
4.His dream is ________ (feed) more people.
5.The key is ________ (find) the right plant.
6.________ (see) farmers smile is the greatest reward for a scientist.
7.It is not easy ________ (solve) the food shortage problem.
8.Our task is ________ (increase) rice production.
9.________ (learn) from Yuan Longping's spirit is meaningful.
10.It is a good idea ________ (use) hybrid rice to fight hunger.
11.________ (reduce) food waste is important for everyone.
12.Her goal is ________ (become) an agricultural scientist.
13.It is necessary ________ (study) the needs of farmers.
14.________ (work) the land requires hard work and dedication.
15.The best way to honour Yuan Longping is ________ (value) every grain of food.
二、句型转换（20分）
将下列句子改写为it作形式主语的句子：
1.To understand the importance of agriculture is necessary.
→ _________________________________________________________________
2.To produce more food with less land is challenging.
→ _________________________________________________________________
3.To learn from Yuan Longping's spirit is meaningful.
→ _________________________________________________________________
4.To reduce food waste is a good way to save resources.
→ _________________________________________________________________
5.To conduct research takes a lot of patience.
→ _________________________________________________________________
三、选择填空（20分）
1.It is important ________ us to protect farmland.
A.for B.of C.to D.with
2.It is kind ________ you to help the farmers.
A.for B.of C.to D.with
3.It is difficult ________ farmers to get enough water.
A.for B.of C.to D.with
4.It is wise ________ us to learn from Yuan Longping.
A.for B.of C.to D.with
5.It is generous ________ him to share his research with other countries.
A.for B.of C.to D.with
6.It is necessary ________ scientists to continue their research.
A.for B.of C.to D.with
7.It is foolish ________ him to waste so much food.
A.for B.of C.to D.with
8.It is important ________ everyone to save food.
A.for B.of C.to D.with
9.It is considerate ________ her to think about the farmers' needs.
A.for B.of C.to D.with
10.It is hard ________ farmers to get modern equipment.
A.for B.of C.to D.with
四、短文填空（30分）
用所给动词的适当形式填空：
Yuan Longping's life mission was (1)________ (develop) hybrid rice. He believed that (2)________ (feed) the world's population was the most important task. It was not easy (3)________ (succeed) in his research. He faced many difficulties, but he never gave up. (4)________ (see) farmers harvest more rice was his greatest joy.
It is important for us (5)________ (remember) his contributions. His dream was (6)________ (see) hybrid rice cover the world. (7)________ (learn) from his spirit is meaningful for all of us. It is also necessary (8)________ (reduce) food waste in our daily lives.
(9)________ (honour) Yuan Longping, we should value every grain of food. The best way (10)________ (show) our respect is to continue his work and to help feed the world.
测评案参考答案与评分标准
一、用所给动词的适当形式填空（30分，每题2分）
1.To develop 2.to protect 3.to conduct 4.to feed 5.to find 6.To see 7.to solve 8.to increase 9.To learn 10.to use 11.To reduce 12.to become 13.to study 14.To work 15.to value
二、句型转换（20分，每题4分）
1.It is necessary to understand the importance of agriculture.
2.It is challenging to produce more food with less land.
3.It is meaningful to learn from Yuan Longping's spirit.
4.It is a good way to save resources to reduce food waste.
5.It takes a lot of patience to conduct research.
三、选择填空（20分，每题2分）
1.A 2.B 3.A 4.B 5.B 6.A 7.B 8.A 9.B 10.A
四、短文填空（30分，每题3分）
1.to develop 2.feeding 3.to succeed 4.Seeing 5.to remember 6.to see 7.Learning/To learn 8.to reduce 9.To honour 10.to show
评分标准：
用所给动词适当形式填空：每小题2分，形式正确即给分。
句型转换：每句4分，it作形式主语正确得2分，不定式正确得1分，句子结构完整得1分。
选择填空：每小题2分，选对即给分。
短文填空：每小题3分，形式正确即给分。
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