Unit 4 Amazing Plants and Animals SectionB (Vocabulary in Use 2a-2d)课件2025-2026学年人教版（2024）八年级英语上册

Unit 4 Amazing Plants and Animals SectionB (Vocabulary in Use 2a -2d） 人教版 八年级上册 04 03 01 02 提升词汇辨析、词性转换、语境运用能力，增强语言逻辑思维和综合表达力 。 学习能力 能结合文本内容续写关于蜜蜂的段落，分析蜜蜂保护措施以及数量下降的影响，并与同伴分享，提升对 “人与自然” 联系的理解。 思维品质 借生态主题内容，增强生态保护意识，激发英语学习兴趣，培养团队协作和自主探究精神 。  文化意识 知识目标：学生能准确完成2a词汇分类并说明理由，熟练运用2b中后缀进行词性转换，正确用目标词汇完成2c句子和2d语篇填空 。 语言能力 Learning Objectives 2 教学重难点 1. 教学重点：词汇分类逻辑理解，名词后缀（-ance,  -(t)ion, -ness, -ity ）的正确运用，语境中词汇形式的准确选择 。 2. 教学难点：精准判断词汇分类依据，灵活运用词性转换规则，结合语境深度理解词汇表意并准确运用 。 habit weight happiness Review angry disappointed smart Review appear seem enjoy Review juice watch honey Review size height sad Review 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 “Look at these groups of words. For each group, there’s one word that doesn’t belong with the others. We need to circle it and explain why. Let’s start together! Presentation What do ‘height, size, weight’ have in common?” “事物的物理特征、度量” 有关 weight 是重量 height 身高 / 高度 size 是 尺寸/大小 Group 1 habit , height, size, weight Which three words do you think have in common?” odd What do ‘joy happiness fun’ have in common?” They are all positive emotional experiences. Joy happiness fun joy happiness fun enjoy Group 2 Which three words do you think have in common?” odd What do ‘angry, sad, disappointed’ have in common?” They are all bad feeling experiences angry, sad, smart, disappointed Group 3 Which three words do you think have in common?” odd He appears disappointed. She looks angry . He seems sad. What do ‘appear, look, seem’ have in common?” 给人某种印象、传达一种主观判断或呈现出某种状态” 的含义 appear, look, seem, watch Group 4 Which three words do you think have in common?” odd What do ‘honey, juice, milk’ have in common?” They are all liquids for drinking honey, juice, milk, bread Group 5 Which three words do you think have in common?” odd 2a Circle the odd ones. Then give your reasons. habit height size weight joy happiness fun enjoy angry disappointed smart sad appear look seem watch honey milk juice bread different Tips: you should pay attention to the words’ part-of-speech、semantic category 、grammatical function、 substance category.（注意单词的词性、词义范畴、语法功能和物质类别） 15 2a Circle the odd ones. Then give your reasons. habit height size weight joy happiness fun enjoy angry disappointed smart sad appear look seem watch honey milk juice bread semantic category part-of-speech semantic category grammatical function substance category 16 happiness performance reality education movement decision Do you know these nouns? Are they the original forms or changed ones? We can change verbs/adjectives into nouns by adding suffix. We can add suffixes to their endings [ˈsʌfɪks] 后缀 happy (adj.) + -ness → happiness (n.) perform (v.) → performance (n.) educate (v.) → education (n.) real (adj.) → reality move(v.)-movement (n.) decide(v.)-decision (n.) 2b Add the endings -ance, -(t)ion, -ness, and -ity to form nouns. Use your dictionary. 词缀affix 前缀prefix 后缀suffix To change the meaning or the part- of - speech 19 后缀suffix -age -ee/-er/-or/-ist -ication/ -tion/-sion -dom -ance/-ence -al -ment -(i)ty -ness -ism -ery Can you classify them? Do you know some suffix? Purpose:通过词汇分类（语义差异）、构词法（后缀变形）、词形变化（动词变形容词等）等多角度夯实词汇基础。 20 后缀suffix -age -ee/-er/-or/-ist -ication/ -tion/-sion -dom -ance/-ence -al -ment -(i)ty -ness -ism -ery 加在v.后 加在adj.后 加在v./adj.后 21 Add the endings -ance, -(t) ion, -ness, and -ity to form nouns. Use your dictionary. 2b 1. act _________________ 2. good _________________ 3. kind _________________ 4. appear _________________ 5. real _________________ 6. imagine _________________ 7. connect _________________ 8. popular _________________ 9. communicate _________________ 10. important _________________ action goodness kindness appearance reality imagination connection popularity communication importance Let’s summarize act：Bees’ ______ of pollinating flowers helps plants grow. good：The ______ of protecting bees makes nature better. kind：______ to small animals like bees is important. appear：The ___________ of many birds in the forest is lovely. real：The ___________ is that bees are key to our ecosystem. imagine：Children’s ___________ about bee worlds is fun. connect：The ___________ between bees and flowers is vital. popular：The ____________ of bee - friendly flowers is growing. communicate：Bees’ _____________ through dances is amazing. important：The _____________ of bees to nature can’t be ignored. action goodness kindness appearance reality imagination connection popularity communication importance Let’s practice Complete the sentences with the correct forms of the words in the box. 2c 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. appear disappoint imagine store weigh disappointed appear store weighs imagine /ˈmʌʃrʊm / n. 蘑菇；伞菌 ton /tʌn/ n. 吨 feel感官动词后＋形容词 句中缺乏谓语动词 use... to do...固定用法，用...来做... 句中缺少谓语动词 can情态动词＋动词原形 the size of a pea the size of a hand Frogs play an important role in our ecosystem. [ˈiːkəʊsɪstəm] 生态系统 the smallest the biggest Complete the passage with the correct forms of the words in the box. 2d 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 在...中扮演一个重要的角色 ...的尺寸 然而...表“对比” by...借助...方式 ，方式状语 名词前面需要形容词修饰 help to do...帮助做... 联系上下文，确定转折关系 形容词性物主代词＋ 名词 固定短语 ，居住在... Every species has its unique value in the ecosystem. We should protect nature and maintain biodiversity. 每一个物种在生态系统中都有独特价值，我们要保护自然、维护生物多样性。 1. I felt disappointed when my favourite flowers died. 这是一个复合句，when 引导时间状语从句，表示 “当…… 时候”。主句是 I felt disappointed，其中 felt 是系动词，disappointed 作表语。常见短语：be disappointed with/ in/ at sb./sth. 对某人 / 某事感到失望 常见例句： When I got home, my mother was cooking. 当我到家时，我妈妈正在做饭。 Language points 29 2. I can’t imagine my life without my pets. They mean a lot to me. imagine意为“想象”，后可接名词、代词或动词-ing形式作宾语。mean a lot to sb. 表示“对某人意义重大”。 常见例句： I can't imagine living without electricity. 我无法想象没有电的生活。 Language points 30 3. Many people know that frogs help to protect farms by eating insects. 这是一个复合句，that 引导宾语从句，作 know 的宾语。在宾语从句中，frogs 是主语，help 是谓语动词，to protect farms 是动词不定式作宾语补足语，by eating insects 是方式状语，表示 “通过吃昆虫”。by 表示方式，后接动词 -ing 形式。 常见例句： He learns English by listening to the radio. 他通过听收音机学英语。 Language points 31 一、单项选择 ( )1. I was very ______ when I heard the bad news. A. angry B. anger C. angrily D. angrier ( )2. The little boy can’t ______ how big the world is. A. imagine B. imagine about C. imagine with D. imagine to ( )3. The old man likes to ______ his old photos in the box. A. store B. save C. enjoy D. hold ( )4. The ______ of the elephant is about 5 tons. A. high B. height C. weigh D. weight A A A D 32 二、用所给单词的适当形式填空 1. The _____________ (appear) of the sun from behind the clouds made us happy. 2. We should show ____________ (kind) to the poor. 3. It's ___________ (importance) for us to learn a foreign language well. 4. The two cities are __________ (connect) by a railway. appearance kindness important connected 33 Homework 基础作业： Read and remember the new words and sentences in this part. 提升作业： Make an English handwritten newspaper with the theme of "Animals and Our Ecosystem". 拓展作业： Record an English to introduce an animal you like. Reflecting How well can you do these things? Very well OK Needs work 1.熟练运用2b中后缀进行词性转换。 □ □ □ 2.我能够对词汇辨析、词性转换、语境运用能力。 □ □ □ 3.能结合文本内容续写关于蜜蜂的段落，分析蜜蜂保护措施以及数量下降的影响，并与同伴分享，提升对 “人与自然” 联系的理解。 4. 参与小组活动的积极性与合作能力 □ □ □ $