Unit 4 课时5 Section B Vocabulary in use（教学课件）英语新教材人教版八年级上册

该初中英语课件围绕“Amazing plants and animals”主题，聚焦名词后缀规则（-ance、-(t)ion、-ness、-ity）及词汇辨析。课堂导入通过“不同高度的动物看到的世界”视频，提问测量数据，衔接旧知，搭建从词汇差异分析到构词规则学习的支架。 其亮点在于以“找异类词汇”活动培养思维品质，结合实例系统讲解后缀规则提升语言能力，分层练习（构词、句子、语篇填空）发展学习能力。如辨析“habit, height”等词汇范畴，用“perform→performance”等实例巩固构词，助力学生准确运用词汇，也为教师提供清晰教学路径和丰富素材。

Unit 4 Amazing plants and animals 第5课时 Section B Vocabulary in use 课型：词汇课 Learning Objectives In this lesson, you will: 【学习理解】 1.Analyze word differences from part of speech, meaning, usage and emotion;. 2.Understand noun suffix rules. 【应用实践】 Apply -ance, -tion, -ness, -ity to form nouns and use correct vocabulary forms in context. 【迁移创新】 Use target vocabulary accurately in new contexts to express ideas about plants and animals. Lead-in What can you remember about the measurements in the video? 1. habit height size weight 2. joy happiness fun enjoy 3. angry disappointed smart sad 4. appear look seem watch 5. honey milk juice bread Circle the odd ones. Then give your reasons. 其他均为液体 词性不同，其他均为名词 其他均为情绪类形容词 其他均为描述物体外在属性的名词 其他均为系动词 2a Tips:从语义范畴、词性、表达的情感或特质类型等方面，对词汇进行区分以找出异类。 presentation The rules for forming nouns with the suffixes -ance, -(t)ion, -ness, -ity 1. -ance 规则：通常加在动词后面 ，构成抽象名词表示行为、状态、性质等 。 perform（v.表演；执行 ）→ performance（n.表演；表现 ） assist（v.帮助 ）→ assistance（n.帮助；援助 ） 2. -(t)ion 规则：一般加在动词后，构成名词表示动作、过程或结果。 educate（v.教育 ）→ education（n.教育 ） decide（v.决定 ）→decision（n.决定 ） admit（v.承认；准许进入 ）→admission（n.承认；准许进入 ） presentation 3. -ness 规则：加在形容词后面 ，构成抽象名词用来表示形容词所描述的性质、状态。 happy（adj.幸福的；快乐的 ）→ happiness（n.幸福；快乐 ） kind（adj.善良的 ）→ kindness（n.善良 ） 4. -ity 规则：常加在形容词后（部分词需对词尾做适当变化 ，如去掉不发音 -e 等 ），构成名词表达与原形容词相关的性质、状态或情况。 active（adj.积极的 ）→activity（n.活动；活跃 ） possible（adj.可能的 ） →possibility（n.可能性 ） presentation Add the endings -ance, -(t) ion, -ness, and -ity to form nouns. Use your dictionary. 1. act _____________ 3. kind _____________ 5. real _____________ 7. connect _____________ 9. communicate ____________ 2. good _____________ 4. appear _____________ 6. imagine _____________ 8. popular _____________ 10. important _____________ action goodness kindness appearance reality imagination connection popularity communication importance 2b practice Complete the sentences with the correct forms of the words in the box. appear disappoint imagine store weigh 1.I felt____________when my favourite flowers died. 2.After the rain, some mushrooms __________in the garden. 3.In my hometown, people often use bamboo baskets to ____________food. 4.What did you put in your luggage? It __________a ton. 5.I can't __________my life without my pets. They mean a lot to me. disappointed appeared store weighs imagine 2c practice You may not realize it, but frogs play an important role in our ____________ ecosystem. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand. Many people know that frogs help to ____________ farms by eating insects. ____________, not everyone understands their ____________ in nature. Frogs can live on ____________ and in water. Because of this, they are popular subjects in studies on climate change and the ecosystem. however important land planet protect planet's protect However importance land /rəʊl/ n. 作用；职能；角色 play a role (in) 在……中发挥作用； 扮演角色 pea /piː/ n. 豌豆 /ˈklaɪmət/ n. 气候 2d 2d Complete the passage with the correct forms of the words in the box. practice Why should we do more exercises? Because doing more exercises helps us better understand and master knowledge. Why are plants and animals important to us? Because they provide food, oxygen and materials for our daily life, and also help keep the balance of nature. We should protect them! 1. happiness 幸福 (教材第 38 页，2a) happiness /′hæpinəs/ [名词] 幸福；快乐 Money can′t buy you happiness. 金钱不能为你买到幸福。 happiness 是形容词 happy (快乐的，幸福的) 的名词形式。 Language Points [拓展] unhappy 是 happy 的反义词，意为“不快乐的；不幸福的”。 He was a shy，sometimes unhappy man. 他是一个害羞的、有时不快乐的人。 Language Points 2. disappoint 使失望 (教材第 38 页，2c) disappoint /͵dɪsə′pɔɪnt/ [动词] 使失望；使破灭 disappoint 相当于 let... down，后接表示人的名词或代词。 We will do our best not to disappoint them. 我们会尽我们所能，不让他们失望。 Language Points [拓展] disappointment [名词] 令人失望的事；令人扫兴的人 to one′s disappointment 使某人失望的是 To our disappointment，he failed to keep his promise.令我们失望的是，他没有恪守诺言。 Language Points 3. They mean a lot to me. 它们对我来说意义重大。(教材第 38 页，2c) mean [动词] 意味着 mean (doing) sth. 意味着 (做) 某事 Missing this train means waiting for another hour. 错过这趟火车意味着再等一个小时。 Language Points [拓展] ① mean 作动词还可意为“打算”。 mean to do sth. 打算做某事 I mean to stay here for a long time. 我打算在这里待很久。 ② meaning [名词] 意思 What′s the meaning of this word? 这个单词是什么意思？ Language Points 4. You may not realize it，but frogs play an important role in our planet′s ecosystem.你可能没有意识到，青蛙在我们地球的生态系统中扮演着重要的角色。(教材第 38 页，2d) play a role (in) 在······中发挥作用；扮演角色 其中 role 用作名词，意为“作用；职能；角色”in 后接名词、代词或动词 -ing 形式。 Language Points [拓展] play the role of... 扮演······的角色 In this game you will play the role of a rabbit. 在这个游戏中你将扮演一只兔子。 Language Points 1. ________ have a healthy body，he keeps exercising for half an hour every day. A. Have to B. Look forward to C. In order to D. Next to 一 单项选择。 C Exercise 2. —What is your uncle doing? —He is watching the children there ______ a plane with some newspapers. A. making B. to make C. made D. make A Exercise 3. I love game shows. I hope one day I can __________ one of them，answer all the questions and win a big prize! A. play a part in B. play role in C. joins in D. take a part in A Exercise Thanks for listening！ Lavf58.20.100 $