(共41张PPT)
Unit 5 Saving animals in danger
Grammar in use
（沪教版 2024）八年级
下
Learning objectives
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Lead in
Presentation
2
Practice
Production
4
Summary
Assessment
6
Homework
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3
5
7
By the end of the lesson, I will be able to...
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2
3
use it as an empty subject with for/of correctly；
use adj. + enough + to do and convert it with too...to...；
talk about animal protection with the target grammar.
00
Learning objectives
https://www.21cnjy.com二一教育
Look and answer.
Q: Do you know how the giant panda is protected in China today
Build nature reserves
Make strict laws against hunting
Do scientific breeding research
Spread public protection awareness
Protect bamboo forests
Lead in
01
Lead in
01
Look and answer.
Q: What should we do to protect them
It is important for us to protect nature.
Lead in
01
Look and answer.
Q: What should we do to protect them
Q: What should we do to keep the sea clean
It is _____________ for us to stop ___________________ into the sea.
necessary
throwing rubbish
Look and answer.
Q: What are these people doing Is it right
It is _________ of people to ____________ for their fur or horns.
cruel
kill animals
Look and answer.
Q: What should we do to protect their homes
It is ___________ for us to _________________________ of wild animals.
important
protect the habitats
Look and answer.
Q: What are these students doing Why
It is ____________ for us to ____________________ of protecting endangered animals.
helpful
raise awareness
Presentation
02
Read and find.
It is _____________ for us to stop ___________________ into the sea.
necessary
throwing rubbish
It is _________ of people to ____________ for their fur or horns.
cruel
kill animals
It is ___________ for us to _________________________ of wild animals.
important
protect the habitats
It is ____________ for us to ____________________ of protecting endangered animals.
helpful
raise awareness
真正的主语
A Using it as an empty subject(1)
形式主语
There are more and more people on this planet, and this is harming the
environment. It is not easy for many animal species to survive. I once watched a video about illegal hunting. In the video, some hunters killed a tiger. It was very cruel of them to do so. What is worse, those people also make a lot of money from this. I think it is wrong of them to sell products made from animals in danger. It is important for us to protect nature. My friend and I have joined a local environmental group. This weekend, we will collect money for a wildlife charity. My uncle has offered to drive us to the event. It is very kind of him to help!
Presentation
02
Read and find.
To survive is not easy for many animal species.
Read the passage about protecting animals in danger. Pay attention to the sentences in bold. Explain what it refers to in each of the sentences in bold.
To do so was very cruel of them.
I think to sell products made from animals in danger is wrong of them.
To protect nature is important for us.
To help is very kind of him.
A Using it as an empty subject(1)
Presentation
02
Read and learn.
To survive is not easy for many animal species.
To do so was very cruel of them.
I think to sell products made from animals in danger is wrong of them.
To protect nature is important for us.
To help is very kind of him.
When the subject of a sentence is a long infinitive expression, we usually start the sentence with the empty subject _____ and put the infinitive expression at__________.
it
the end
核心规则
当句子的主语是很长的不定式短语（to do...）时，为了避免头重脚轻，我们会用 it 放在句首作形式主语，把真正的主语（不定式短语）放到句子末尾。
结构：
It + be + 形容词 + (for/of sb.) + to do sth.
A Using it as an empty subject(1)
Presentation
02
Read and learn.
Presentation
02
Read and learn.
It is not easy for many animal species to survive.
结构：It is + 形容词(easy) + for + 名词/代词 + to do(生存)
It is important for us to protect nature.
结构：It is + 形容词(important) + for + 代词 + to do(保护自然)
easy（容易的）：描述的是「生存这件事」的难度，不是「动物物种」本身容易
important（重要的）：描述的是「保护自然这件事」的重要性，不是「我们」本身重要
→ 结论：形容词修饰「动作 / 事情」，用 for
Presentation
02
Read and learn.
It was very cruel of them to do so.
结构：It is + 形容词(cruel) + of + 代词 + to do(猎杀老虎)
I think it is wrong of them to sell products made from animals in danger.
结构：It is + 形容词(wrong) + of + 代词 + to do(售卖动物制品)
cruel（残忍的）：描述的是「他们（猎人）」的品行，「猎杀老虎」体现了他们的残忍
wrong（错误的）：描述的是「他们（卖制品的人）」的行为对错，「卖制品」体现了他们的错误
Presentation
02
Read and learn.
It is very kind of him to help!
结构：It is + 形容词(kind) + of + 代词 + to do(帮忙)
kind（善良的）：描述的是「他（叔叔）」的品质，「帮忙」体现了他的善良
→ 结论：形容词修饰「人 / 人的品质」，用 of
for
of
Presentation
02
Read and Complete.
Complete the sentences with the correct form of the words in brackets.
It’s very kind _______(for/of) you to help me.
It was very clever _______ (for/of) him to set a trap to catch the runaway dog.
It’s necessary _______ (for/of) us to learn more about animals.
It is helpful _______ (for/of) students to review the things they have studied.
of
of
for
for
learn about the animals in danger in the area
It is wrong of people / us to buy products made from animals in danger.
It is helpful of people / us to report any hunting of animals in danger.
It is right for people / us to protect the homes of animals in danger.
It is necessary for people / us to take care of injured animals.
Read the notes below. Then write a short notice to remind your classmates about how to protect animals in danger.
Presentation
02
Read and write.
Presentation
02
Pair work.
Imagine that you are interviewing the elephant from the story on 69. Listen to his story and respond.
Use the structure below.
It is +adjective + for/of + noun/pronoun + to + verb
名词：animal species 动物物种、survival 生存、nature 自然、environment 环境、illegal hunting 非法捕猎、wildlife 野生动物、charity 慈善机构、harmony 和谐、habitat 栖息地
动词：survive 生存、protect 保护、hunt 捕猎、kill 杀死、sell 售卖、raise 提高、awareness 意识、collect 筹集、offer 主动提供
副词：carefully 小心地、freely 自由地
代词：it 它（形式主语）、us/them/him/me 宾格
Use the Words Bank below.
Can you share….
Sure, I think…
Before
Now
The little bird is now _____________to fly.
strong enough
The little bird was _________________
to fly.
not strong enough
The little bird was ______________ to fly before.
too weak
Before
Now
The bamboo forest is ____________for pandas to live in.
big enough
The forest was ______________________ for pandas to live in.
not big enough
The forest was _________for pandas to live in before.
too small
Before
Now
The elephant is now _____________to walk.
strong enough
The elephant was __________________
to walk.
not strong enough
The elephant was ____________ to walk.
too weak
Before
Now
We were ________________ to tell others how to protect animals.
not clear enough
We were ________________ to explain it well before.
too confused
We are ____________ to tell others how to protect animals.
clear enough
The little bird was ______________ to fly before.
The forest was _________for pandas to live in before.
The forest was ______________________ for pandas to live in.
The little bird was ___________________to fly.
The elephant was ____________ to walk.
We were ________________ to explain it well before.
The elephant was __________________to walk.
not strong enough
We were ________________ to tell others how to protect animals.
Presentation
02
Read and learn.
too weak
too small
too weak
too confused
not strong enough
not big enough
not clear enough
句型 结构 含义
enough to do 形容词 / 副词 + enough + to do 足够…… 去做某事（肯定）
not + 形容词 / 副词 + enough + to do = 不够…… 做不了某事（否定）
too...to... too + 形容词 / 副词 + to do 太…… 而不能做某事（否定，可与 not...enough to do 互换）
Presentation
02
Read and learn.
Ma Kai is telling Du Yun about his trip to the zoo.
Complete their conversation with the words in brackets.
Presentation
02
Read and Complete.
Ma Kai: A boy was throwing rocks at a wild duck in the zoo, but I was
(1) _______________________ (not brave /tell)him to stop doing it. Then a man and a woman walked past, so I told them what was going on.
They were(2)_________________ (kind /help)me. The boy ran away immediately!
Du Yun: What happened to the duck then
Ma Kai: It flew away from us. I think it came close because it was hungry.
Du Yun: Did you see any other animals during your trip
Ma Kai: Yes, I saw some sheep in the feeding area. Baby sheep are
(3) ___________________(big/feed) themselves. I took some photos. Here! Take a look!
Du Yun: Wow! How cute!
not brave enough to tell
kind enough to help
big enough to feed
句子改写：
1. Elephants are really smart. They can recognize themselves in the mirror.
Elephants are ______ ______ ____ ___________ themselves in the mirror.
2. Elephants are strong. They can lift up to 400 kg with their trunks.
Elephants are______ ______ ______ _________ up to 400 kg with their trunks.
3. Baby elephants are not big enough to feed themselves.
Baby elephants are ______ ______ ____ ___________ themselves.
4. The sick bird was strong. It could fly again.
The sick bird was______ ______ __________ _____again.
5. Xiujuan was really tired. She couldn’t return to the shore.
Xiujuan was ______ ______ ____ _____ to the shore.
smart enough to recognize
strong enough to lift
too young to feed
strong enough to fly
too tired to return
Complete the passage.
Practice
03
Talk in pairs about why we should help protect animals in danger. Use the expressions below to help you.
Talk in pairs.
Practice
03
Sentence Structure
It is important for us to ...
It is cruel of humans to ...
We are old enough to ...
It is never too late to ...
Phrases Bank
protect animals in danger; protect wild animals
protect the environment; stop killing animals
cut down forests; help protect animals
volunteer at the zoo; protect animals
save endangered species; change our bad habits
save endangered animals;
kill animals for their fur
hunt wild animals illegally
tell others about animal protection
Production
04
Sentence Structure
Words Bank
It is + adjective + for + noun/pronoun + to + verb
It is + adjective + of + noun/pronoun + to + verb
too + adjective + to + verb
adjective + enough + to + verb
Write a short paragraph about protecting animals in danger. Use the structures below.
Group work.
protect animals in danger; protect wild animals
protect the environment; stop killing animals
cut down forests; help protect animals
volunteer at the zoo; protect animals
save endangered species; change our bad habits
save endangered animals;
kill animals for their fur
hunt wild animals illegally
tell others about animal protection
Write a short paragraph about protecting animals in danger. Use the structures below.
Some people hunt and kill wild animals. It is very cruel of them to do so. However, there are many volunteers who help protect these animals from hunters. I think it is very kind of them to do that. I’m not brave enough to work with wild animals myself, but my friends and I help raise money for animal charities.
Production
04
Group work.
For example:
Show time
Talk clearly (内容清晰)
Pronunciation(发音标准)
Body language(使用肢体语言)
Fluently(流利的)
Reasonable(理由合理)
Grade and share:
一、根据句意及提示填空
It is important ________ us ________ (learn) about endangered animals.
It is cruel ________ people ________ (kill) wild animals.
The little boy is not old ________ to go to school.
She is brave enough ________ (stop) the boy from throwing stones.
The river is too dirty for animals ________ (drink).
(同义转换: The river is not clean enough for animals ________ (drink).)
The phrase we have learned
Summary
05
for to learn
of to kill
enough
to stop
to drink
to drink
二、短语翻译
保持海洋清洁 _______________________________
违反法律 _______________________________
对某人来说做某事很重要 _______________________________
足够勇敢去做某事 _______________________________
太…… 而不能…… _______________________________
The phrase we have learned
Summary
05
keep the oceans clean
break the law
It is important for sb. to do sth.
be brave enough to do sth.
too...to...
三、句子翻译
对我们来说，保护自然是很重要的。
____________________________________________________________
人们向海里扔垃圾是错误的。
____________________________________________________________
他足够勇敢去阻止那些猎人。
____________________________________________________________
这只熊猫太虚弱了，不能走路。（用 enough 结构改写）
____________________________________________________________
对他来说，帮助我们去参加活动是很善良的。
____________________________________________________________
The phrase we have learned
Summary
05
It is important for us to protect nature.
It is wrong of people to throw rubbish into the sea.
He is brave enough to stop those hunters.
The panda is not strong enough to walk.
It is kind of him to help us take part in the activity.
Assessment
06
Self-assessment
I can use it as an empty subject with for/of correctly.
I can use adj. + enough + to do and convert it with too...to....；
I can talk about animal protection with the target grammar.
Basic (基础)
Improving(提升)
Extend (拓展)
Homework
07
整理 Verb-ing 作主语 / 宾语、Verb-ing/ed 作形容词的规则笔记（含例句）。
用 “Verb-ing 作主语 / 宾语” 描述 1 个自己的爱好，至少包含 2 个 Verb-ing 形式。
写一段 50 词左右的短文 “My Favorite Hobby”，至少使用 2 个 Verb-ing 作主语 / 宾语、1 个 Verb-ing/ed 作形容词。
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Thanks!/ 让教学更有效 高效备课 | 英语学科
Unit 5 Saving animals in danger课时教学设计
本单元第3课时 Grammar in use 课型 语法课
语篇研读
What---语篇主题和主要内容 语法知识 A：当句子主语是较长的不定式短语时，用 it 作形式主语，将真正主语（不定式）后置；并区分 for sb.（形容词修饰动作）与 of sb.（形容词描述人物品质）的用法。 语法知识 B：adjective + enough + to + verb 结构表示 “足够…… 去做某事”，可与 too...to... 结构同义转换。 Why---语篇传递的主题意义 通过贴近单元主题的语法练习，帮助学习者掌握 it 作形式主语和 enough 结构的用法，既能用规范句式表达义务与评价，又能清晰地描述能力与程度；让语法学习脱离孤立规则记忆，贴合 “动物保护倡议、日常对话” 的真实交流需求，体会语法在 “传递观点、表达行动” 中的实用价值，同时提升用英语讨论环保与责任话题的能力。
How---文体结构、语言特点及功能 it 作形式主语部分：以 “规则提炼→语篇中标注→通知写作” 推进； enough 结构部分：以 “例句示范→对话补全→观点表达” 展开。 语言特点上依托简单句、保护动物主题短文与生活化对话，用规则框、提示词降低理解门槛，通过分层练习（从单句补全到通知写作）逐步落实语法知识，帮助学习者由浅入深掌握规则的应用逻辑。
学情分析
【已知】学生已掌握基础不定式结构（如 to do 表目的），能识别简单句的主语成分，已接触 It's...to do 句型；能完成基础的句子填空练习，具备小组互动表达能力。 【未知】不熟悉 it 作形式主语时 for/of 的用法区别，易混淆 enough 结构与 too...to... 的转换逻辑；无法自主用 it 句型完成倡议类写作。 【能知】掌握 it 作形式主语的核心规则（for/of 区分、不定式后置），能正确运用 enough 结构描述能力与程度；能用目标语法完成通知写作、对话补全，并表达保护动物的观点。
核心素养教学目标
通过本课学习，学生能够： 语言能力：掌握 it 作形式主语的规则（for/of 用法、不定式后置），能在句子中正确使用；掌握 adjective + enough + to + verb 结构，能与 too...to... 同义转换；能用目标语法完成保护动物通知写作、对话补全。 思维品质：能归纳 it 作形式主语的规则，推导 for/of 的语境差异；能梳理 enough 结构与 too...to... 的转换逻辑，准确判断语境适用形式。 学习能力：能自主完成语法练习，主动总结易错点并整理语法笔记；能通过小组讨论，应用目标语法表达保护动物的观点。 文化意识：能用英语讨论濒危动物保护的义务与行动，体会语言在 “环保倡议、责任表达” 中的跨文化共性。
教学重难点
教学重点 it 作形式主语的规则（不定式后置、for/of 用法区分）； adjective + enough + to + verb 结构的用法及与 too...to... 的转换。 教学难点 在写作语境中准确判断 for/of 的使用场景； 灵活转换 enough 结构与 too...to... 结构，准确表达程度。 易错点 it 作形式主语时误用 of/for（如错误：It's kind for him to help.）； enough 结构位置错误（如错误：He is enough strong to walk.）； 忘记 it 作形式主语时真正主语用不定式（如错误：It is important protect animals.）。 易忘点 it 作形式主语时，真正主语是句末的不定式短语； enough 需放在形容词之后（adj. + enough）。 拓展点 语法拓展：补充 It's + adj. + doing sth. 句型，对比与 It's + adj. + to do sth. 的差异； 语用拓展：结合单元主题，用 it 句型和 enough 结构写一段保护动物的倡议； 构词法拓展：补充常见可与 enough 搭配的形容词（如 brave, kind, old, strong）。
教学方法
情境教学、任务型教学、小组合作学习、英语学习活动观
教学工具
PPT课件，多功能白板，教案
教-学-评一体化教学过程
教学目标 学习活动 效果评价
学习理解： 帮助学生激活关于濒危动物与动物保护的已有知识，激发对本课话题的学习兴趣，自然引出本节课要学习的核心语法句型，为后续语法学习做好话题与语言铺垫。 任务一: Lead in Look and answer.
Do you know how the giant panda is protected in China today What should we do to protect them 学生观察濒危动物与保护措施图片，口头回答问题，导入动物保护话题，激活相关知识。 任务二:Presentation- Using it as an empty subject Read and find. Read the passage and explain what it refers to in each bold sentence. 学生阅读短文，找出形式主语 it 对应的真正主语（不定式），初步感知 it 作形式主语的用法。
Read and learn. It + be + adjective + (for/of sb.) + to do sth. 教师讲解 it 作形式主语的结构，引导学生区分 for（描述事情）与 of（描述人的品质），理解句型规则。
3. Read and Complete.
Complete the sentences with the correct form of the words in brackets.
学生独立完成填空，正确选用 for/of，教师核对答案，即时巩固用法。
4. Read and write.
Read the notes below. Then write a short notice to remind your classmates about how to protect animals in danger.
学生运用所学句型，根据提示要点完成简短通知写作，落实语法运用。
5. Pair work.
Imagine that you are interviewing the elephant from the story on 69. Listen to his story and respond. 学生两人一组角色扮演，用 It is + adj. + for/of… 句型采访大象，进行口语操练。 任务三:Presentation- Using adjective + enough + to + verb 1.Look and pare the pictures and describe the changes. 学生观察前后对比图片，用 not…enough to 和 too…to… 描述变化，感知句型含义。
2.Read and learn. adj. + enough + to do /too + adj. + to do 教师讲解两个句型结构与同义转换规则，学生跟读例句，掌握转换方法。
3.情境创设
4. Read and Complete.
Complete their conversation with the words in brackets.
学生根据提示词，用 enough to/too…to… 补全对话，同桌互查并朗读。 任务一： 观察学生看图回答问题时的参与度、表达流畅度与内容贴合度，评价学生对濒危动物保护话题的认知水平与初步语言输出能力。 任务二： 观察学生阅读找句时的定位速度、对形式主语 it 的理解准确度与解释清晰度，评价学生对句式结构的感知与识别能力。观察学生阅读找句时的定位速度、对形式主语 it 的理解准确度与解释清晰度，评价学生对句式结构的感知与识别能力。 任务三： 观察学生在看图描述、句型学习、情境理解与对话补全环节的表现，评价学生对 enough to 与 too…to… 句型的理解、转换及在语境中灵活运用的能力。
设计意图 在于通过真实的动物图片与贴近生活的问题，降低学生的学习焦虑，营造轻松的课堂氛围，让学生在开口表达中感知语言运用的真实场景，同时建立保护动物的情感态度，实现语言学习与德育渗透的有机结合。
教学目标 学习活动 效果评价
应用实践： 让学生准确理解并掌握 it 作形式主语的结构、for 与 of 的用法区别，以及 adj. + enough + to do 与 too…to… 的句型结构和同义转换规则，能够在句子和对话中正确识别、理解并运用这些语法结构。 任务四:Practice 1. Complete the passage.
Rewrite the sentences using enough to /too…to…. 学生完成句型改写练习，巩固同义句转换能力，教师核对答案。
2. Talk in pairs. Talk about why we should help protect animals in danger. 学生两人一组，运用句型库与短语库讨论保护动物的原因，进行口语输出。
任务四: 观察学生完成句型改写练习的正确率与效率，以及结对讨论时的发言积极性、句型使用准确度和观点合理性，评价学生对语法知识的巩固效果与口语交际能力。
设计意图 遵循 “感知 — 理解 — 操练 — 运用” 的语法学习规律，通过阅读发现、规则讲解、填空巩固、情境运用等层层递进的活动，把抽象的语法知识转化为具体可操作的语言形式，让学生在输入与模仿中逐步内化规则，同时结合动物保护主题保持学习的连贯性与意义性。
教学目标 学习活动 效果评价
迁移创新： 让学生在练习、对话、写作等综合性活动中熟练运用所学语法知识完成书面与口头表达，实现从语法理解到语言运用的转化，同时全面梳理本课重点内容，查漏补缺，提升综合语言运用能力与合作交流能力。 任务五:Production Group work.
Write a short paragraph about protecting animals in danger. Use the structures below. 学生小组合作，综合使用本节课所学句型写一段短文，完成综合输出与展示。 任务六:Summary 师生共同通过练习题回顾本节课所学内容，包括词汇、句型、阅读技巧等。 任务五： 观察学生小组合作写作时的分工配合、句型综合运用、内容逻辑与展示表达情况，评价学生的综合语言运用能力与团队协作能力。 任务六：
观察学生完成课堂练习的正确率、知识回顾完整度与课堂回应状态，评价学生对本课词汇、句型与语法知识的整体掌握与内化程度。
设计意图 在于为学生提供充分的语言输出机会，通过分层练习强化知识掌握，通过小组合作与主题写作提升语用能力，在真实有意义的语境中实现语法知识的灵活运用，最后通过总结与检测帮助学生构建完整的知识体系。
效果评价设计
课时教学板书设计
课时作业设计
作业内容 设计意图
基础题： 整理 it 作形式主语和 enough 结构的规则笔记（各写 2 个例句） 巩固核心语法规则，强化基础用法的准确性。
提高题： 用 it 句型写 3 个保护动物的句子（2 个 for，1 个 of）。 实现 “语法规则→生活表达” 的转化，提升语境应用能力。
拓展题： 写一段 50 词左右的短文 How to Protect Animals in Danger，至少使用 2 个 it 句型和 1 个 enough 结构。 培养高阶语言应用能力，实现知识的综合运用。
课后反思（实施后填写）
亮点：以动物保护为主线贯穿整节课，情境连贯、任务层层递进，语法教学与主题表达高度融合；形式主语与 enough/too…to 两大语法点呈现清晰，学生参与度高，口头与书面输出落实到位，实现了语法学习与情感教育的统一。 不足：在 Presentation 环节中，对 for 与 of 的区别讲解节奏偏快，部分学生未能及时内化；句型转换练习的梯度不够，学困生在同义句改写环节出现卡顿，个别活动留给学生思考与纠错的时间不足。 改进：课前精准梳理重难点，为 for/of 区分补充更多直观例句；设计分层练习，降低基础薄弱学生的学习难度；适当延长学生自主纠错、同伴互查的时间，及时反馈并强化薄弱点，让不同层次学生都能扎实掌握。
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