Unit 4 Amazing Plants and Animals Vocabulary in Use（Section B 2a-2d）课件2025-2026学年人教版（2024）英语八年级上册

Unit 4 Amazing Plants and Animals Lesson 5 Vocabulary in Use(Section B 2a–2c) habit height size weight 2.joy happiness fun enjoy Vocabulary in Use Circle the odd ones. Then give your reasons. 2a n. 幸福；快乐 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。 habit描述行为方式，height，size和weight都是描述人或事物的特征。 enjoy是动词，享受；joy快乐，happiness幸福，fun乐趣都是表示积极情感的名词。 3.angry disappointed smart sad 4.appear look seem watch 5.honey milk juice bread Vocabulary in Use Circle the odd ones. Then give your reasons. 2a angry生气的、disappointed失望的、sad 悲伤的都是描述情绪或感受的词；smart (聪明的) 描述的是智力或能力。 appear，look，seem都是系动词，后面常接形容词，表示“看起来怎么样，而 watch 是行为动词，强调“看”的动作，后接宾语（看什么） honey (蜂蜜)、milk (牛奶)、juice (果汁) 都是流质或液体的食物/饮品。而 bread (面包) 是固态食物。 Look and say disagreement 前缀prefix 后缀suffix 词根root 词缀affix 4 Suffix← suffice 补充 Add the endings -ance, -(t)ion, -ness, and -ity to form nouns. Use your dictionary. 1. act _____________ 2. good ___________ 3. kind _____________ 4. appear ___________ 5. real _____________ 6. imagine ___________ 7. connect _____________ 8. popular ___________ 9. communicate ______________ 10. important __________ connection communication action kindness reality现实 goodness appearance imagination popularity普及 importance 2b 我们经常在形容词或动词后添加一个后缀 (suffix) 来构成名词。这个名词通常表示一种状态、品质、行为或概念。 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 ） The rules for forming nouns with the suffixes -ance, -(t)ion, -ness, -ity: 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 ） 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. appeared disappointed store weighs imagine 2c v. 出现 v. 失望 v. 想象 v. 储存 n.商店 v称重 adj 动词原形 动词原形 动词原形 动词单三 Complete the passage with the correct forms of the words in the box. however important land planet protect 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. protect However importance land planet’s 2d play a role (in) 在……中发挥作用；扮演角色 但是 重要的 陆地 行星 保护 形容词 动词原形 副词 名词 名词 Why are frogs important to us? 1.Frogs play an important role in our cosystem. 2.They are popular subjects in studies on climate change and the ecosystem. 3.They also help keep the balance of nature. We should protect them! Read 2d again and complete the tasks. 1. How small can the smallest frogs be? ( ) A. About the size of a pea B. As big as a human hand C. As big as a mouse 2. How do frogs help to protect farms? ( ) A. By pollinating plants B. By eating insects C. By loosening the soil A B 3. Why are frogs popular subjects for studies on climate change and the ecosystem? ( ) A. Because they are brightly colored and easy to observe. B. Because they have a very long lifespan. C. Because they can live on both land and in water. C 4. What is the main purpose of this passage? ( ) A. To tell a fun story about frogs. B. To describe the different sizes and appearances of frogs. C. To introduce the important role of frogs in the ecosystem and their key features. C 11 1. She felt (disappoint) with the results of the exam. 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. 5.Everyone went to the party (except/besides) John. He had to look after his little sister at home kindness important connected Practice disappointed　 except　 12 Make a mind map about suffixs. Imitate 2d and write some sentences to describe bees. Homework $