内容正文:
Unit 3 Fascinating Parks
Period 2 Learning About Language 教学设计
教学基本信息
单元名称
选择性必修第一册 Unit 3 Fascinating Parks
课时名称
Period 2 Learning About Language
学科
英语
学段/年级
高中 / 高二第一学期
主要教材
普通高中教科书·英语选择性必修第一册(人民教育出版社)
课型
词汇语法课
课时安排
1课时(40 min)
授课形式
新授课
教学设计理念
1. 在“国家公园与自然体验”主题语境中整合词汇和语法,让词义、构词和-ing形式都服务于真实意义表达。
2. 词汇学习强调“一词多性/多义、构词规律、语境验证和主题词块”;语法学习采用“观察—比较—归纳—改写—迁移”的路径理解-ing形式作主语。
3. 强调形式、意义和使用统一:学生不仅能写出-ing结构,还要理解把活动置于句首作主语时,句子会把“行为本身”作为话题焦点。
教材分析
【What】Build up your vocabulary通过buffet, edge, ban, remote等词的一词多性/多义匹配、复合词与派生词辨析,以及东北虎豹国家公园语篇填空复现主题词汇。Discover useful structures聚焦-ing形式,先从“Getting here is quite difficult”“Being in such a beautiful and wild place makes me feel blessed to be alive”等真实语料识别功能,再把It is ... to do结构改写为-ing形式作主语,并在西溪国家湿地公园语篇中综合判断-ing形式的不同功能。
【Why】词汇部分帮助学生摆脱“一词一义”的机械记忆,建立词形、词性、词义与语境之间的联系;-ing形式作主语使学生能够把活动、行为或经历作为谈论对象,为描述旅行体验、提出建议和介绍公园提供更丰富的表达方式。
【How】教材先用匹配和构词活动建立词汇意识,再用主题语篇实现迁移;语法则从Reading and Thinking原句出发,通过同义改写比较信息焦点,最后在Xixi National Wetland Park语篇中综合运用,体现“发现规则—控制练习—语篇运用”的递进。
学情分析
1. What I know
学生已接触动名词作主语的个别表达,如Reading is important,也能根据词缀初步判断journalist, vastness, traditional等词的构成。
2. What I want to know
学生常把-ing形式一概理解为“正在进行”,容易混淆作主语、定语/状语及with复合结构中的用法;在一词多义和词性转换中也容易只凭中文记忆。
3. What I learned
学生应能根据词性与语境判断buffet/edge/ban/remote的意义,识别复合词和派生词,并能用V-ing短语作主语表达“某项活动/经历怎么样”,同时区分语篇中其他-ing形式的功能。
教学目标
语言能力:理解并运用buffet, edge, ban, remote, boundary, visible, vast, set up, on the move等词汇;掌握V-ing作主语的基本结构、意义与主谓一致特点。
学习能力:运用词性、构词法、上下文和搭配推断词义;通过对比例句和句式转换自主归纳语法规则。
思维品质:比较It is + adj. + to do与V-ing + be + adj.在信息焦点上的差异,并根据语境判断-ing形式的句法功能。
迁移应用:能用至少3个-ing主语句描述一次公园活动或提出学校旅行建议。
教学重难点
教学重点:buffet/edge/ban/remote的一词多义和主题词汇迁移;V-ing形式作主语的结构及表达功能。
教学难点:区分-ing作主语与其他非谓语功能;在较长V-ing短语作主语时保持句子结构完整并正确处理谓语。
教学资源
教材、课件PPT、词义/词性卡片、构词树、东北虎豹国家公园短文、语法时间/结构卡、西溪国家湿地公园语篇、黑板/白板。
教学活动设计
教学过程
活动形式及步骤
活动意图
时间
学习理解
Activity 1 Words with more than one job
完成教材词义匹配并说明词性:
1. buffet v. — G:wind/wave strikes repeatedly with force
2. buffet n. — C:a meal with several dishes from which people serve themselves
3. edge v. — D:move carefully towards something
4. edge n. — A:the outer limit of an object
5. ban v. — F:officially or legally prohibit
6. ban n. — B:an official or legal prohibition
7. remote adj. — E:far from, not close
8. remote n. — H:a device for controlling something else from a distance
学生任选2组各造句1个。
• 建立“一词多性/多义”意识,训练利用词性和上下文判断词义。
• 复现Reading and Thinking中的主题词。
5 min
学习理解
Activity 2 Word formation detective
分析教材例词:journalist, vastness, breathtaking, traditional, airport, teapot, cupcakes, ice cream。
归纳:
Derivatives(派生词):journal + -ist → journalist;vast + -ness → vastness;tradition + -al → traditional。
Compounds(复合词):breath + taking → breathtaking;air + port → airport;tea + pot → teapot;cup + cake → cupcake;ice + cream → ice cream。
学生说明:构词法怎样帮助猜词义?
• 让学生从“背词”转向“看结构猜词义”。
• 为阅读陌生词和自主扩词提供策略。
5 min
应用实践
Activity 3 Vocabulary in context: Northeast Tiger and Leopard National Park
用boundary, visible, remote, vast, on the move, ban, set up完成语篇:
1. was ______ in Jilin and Heilongjiang → 答案:set up
2. with ______ stretching all the way to the border → 答案:boundaries
3. This ______ new park is nearly four times larger ... → 答案:vast
4. tigers living in the ______ region → 答案:remote
5. a ______ on development → 答案:ban
6. resulted in a ______ population increase → 答案:visible
7. Always ______, Siberian tigers and leopards need large areas ... → 答案:on the move。
核对后学生用一句话概括建立大国家公园的原因。
• 在同主题的新语篇中迁移词汇并用上下文验证答案。
• 将词汇学习与生态保护主题再次连接。
5 min
学习理解
Activity 4 Discover the -ing form as subject
观察:
A. Getting here is quite difficult.
B. Being in such a beautiful and wild place makes me feel blessed to be alive.
学生标出主语并归纳:V-ing短语可以把“动作/经历本身”名词化,放在句首作主语;单个V-ing短语作主语时,谓语通常用单数。
比较:It is challenging to hike through the mountains. / Hiking through the mountains is challenging.
信息焦点:后者直接把“Hiking through the mountains”作为谈论对象。
• 从课文真实语料发现规则,建立“行为→名词化话题”的概念。
• 通过对比理解句式选择带来的焦点变化。
6 min
应用实践
Activity 5 Rewrite with the -ing form as subject
1. It is both challenging and rewarding to study abroad.
答案:Studying abroad is both challenging and rewarding.
2. It would hardly be possible to go on a hiking tour in Sarek in winter due to the extreme cold.
答案:Going on a hiking tour in Sarek in winter would hardly be possible due to the extreme cold.
3. Honestly, it can be both exciting and terrifying to explore a vast unknown land.
答案:Exploring a vast unknown land can be both exciting and terrifying.
4. It is good to adopt a positive attitude, even when things are difficult.
答案:Adopting a positive attitude is good, even when things are difficult.
5. It is strongly advised to hire local guides, because they can offer accurate knowledge of Sarek culture and history.
答案:Hiring local guides is strongly advised, because they can offer accurate knowledge of Sarek culture and history.
• 通过同义改写稳定V-ing作主语结构。
• 关注长主语的完整性和谓语位置。
7 min
学习理解
Activity 6 One form, different functions: Xixi National Wetland Park
用combine, cover, grow, take, limit, walk, experience的-ing形式填空:
答案依次为:covering;Combining;taking;walking;experiencing;growing;limiting;growing。
再判断功能:
Combining... / taking...walking...experiencing... / limiting... → 作主语;
covering... → 补充说明Xixi National Wetland Park;
with trees/flowers growing... → with复合结构中的补足成分。
教师强调:并非所有-ing都表示“正在进行”。
• 在完整语篇中综合判断形式与句法功能。
• 突破“看到-ing就等于进行时”的常见误区。
5 min
迁移创新
Activity 7 School-trip recommendation
两人选择本市/本地区一个适合研学的公园,用3个V-ing主语句说明理由。
句型支架:Walking through ... is ... / Learning about ... is ... / Taking part in ... can ...
示例:Walking along the wetland is relaxing. Learning about local plants is educational. Protecting the environment is everyone’s responsibility.
• 将目标语法迁移到真实学校旅行情境。
• 同时复现公园主题词汇和价值表达。
4 min
迁移创新
Activity 8 Exit ticket
完成:
1. ______ in a national park is fascinating because ______.
2. ______ is important for protecting wildlife.
教师抽取2份,全班判断:V-ing短语是否真正作主语?谓语是否正确?
• 用个人化输出快速检测学生是否真正掌握目标结构。
3 min
课堂总结
学生用“Word—Structure—Meaning—Use”四个词回顾:词汇要根据词性和构词法判断;V-ing可以把活动变成句子的主语;作主语时关注谓语;同一个-ing形式在不同结构中功能可能不同。教师用“Getting here is difficult”与“with trees growing”再次让学生口头辨析。
作业设计
基础作业:①完成8个主题词汇造句;②将5个It is + adj. + to do句改写为V-ing作主语,并标出主语与谓语。
提升作业:写“My Ideal School Trip”80—100词,至少使用5个单元词汇、3处V-ing作主语和1个复合词/派生词。
纠错要求:给V-ing作主语的句子画下划线,并检查谓语形式。
板书设计
Unit 3 Learning About Language
Vocabulary: form + part of speech + context
buffet / edge / ban / remote
Word formation: derivative / compound
Grammar: V-ing phrase → SUBJECT
Getting here is difficult.
Exploring a vast land can be exciting.
Focus: the activity itself
Not every -ing = progressive tense
教学反思
优点:词汇和语法都放在国家公园语境中,学生容易理解形式背后的意义。
不足:部分学生仍会把covering / growing等一律标为主语,句法判断依赖词形而非结构。
改进:后续加入“先找谓语—再找谁/什么作主语—最后判断-ing功能”的三步法,并在Using Language写作互评中继续检查-ing形式。
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