Unit 4 Section B 2a-2c 【精品课】 2026-2027学年八年级英语上册同步精品课件（新教材人教版）

SectionB 2a-2c Unit4 Amazing Plants and Animals 掌握词汇分类、词缀（-ance/- (t)ion/-ness/-ity ）构词法，练习语境运用，构建词汇网络，提升自主探究与解决语言问题的能力; Learning objectives 提取蓝鲸体重、生存区域等关键信息，提升读文提取信息能力； 借青蛙生态作用以及对蓝鲸的了解，树立保护野生动物增强生态保护意识。 通过“第一人称写作语言转换”活动，培养语言转换、创意表达及英语写作逻辑与篇章构建能力，完成 “蓝鲸” 主题段落与短文写作； Warm up Guessing game Guess the animal or plant based on the idiom. 胸有成竹 梅开二度 犬马之劳 庄周梦蝶 bamboo plum blossom dog horse butterfly 1. What is it? 2. What do you know about frogs? It’s a frog. cute size small look weight fun light eat insects live in water and on land habit We use different words to tell different ideas. 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! Why is “habit” the odd one? Words in groups We use “height”, “size” and “weight” to tell the size. But habit is something we/animals often do. Words in groups Why is “enjoy” the odd one? “Joy”, “happiness” and “fun” are nouns. But “enjoy” is a verb. We enjoy ourselves, and then we have happiness, joy and fun. Words in groups Why is “smart” the odd one? “Angry”, “disappointed” and “sad” are something we feel. But “smart” is something we are. Words in groups Why is “watch” the odd one? “Appear”, “look” and “seem” are linking verbs. But “watch” is an action verb. Words in groups Why is “bread” the odd one? “Honey”, “milk” and “juice” are something we drink. But “bread” is something we eat. 1. habit height size weight Please check the _______ of the shoes before buying. The _________ of this box is too heavy for me to carry. It's important to develop a good study _______. His _______ makes him stand out in the basketball team. size weight habit height Exercise Practice makes perfect. 2. joy happiness fun enjoy We had a lot of ________ at the amusement park. I _________ reading books in my free time. The children screamed with ______ when they saw the presents. True __________ comes from within. joy happiness fun enjoy Exercise Practice makes perfect. 3. angry disappointed smart sad He was ________ because his sister broke his toy. She felt ______________ when she failed the exam. The _______ student solved the problem quickly. It's ________ to see the old building being pulled down. angry disappointed smart sad Exercise Practice makes perfect. 4. appear look seem watch It _________ that it's going to rain soon. My grandpa likes to __________ the news every evening. She ___________ very confident in front of the audience. You ________ tired. Did you sleep well last night? appears look seems watch Exercise Practice makes perfect. 5. honey milk juice bread I like to put ________ in my tea. We bought some __________ for breakfast. Drinking _______ every morning is good for health. Would you like some orange ________? honey milk juice bread Exercise Practice makes perfect. Words in groups look fun habit size weight meanning part of speech meaning part of speech meaning We can put words in different groups in different ways. Words in groups look fun habit size weight meanning part of speech meaning part of speech meaning We can change the part of speech of a word by adding a suffix. What is the difference between “happy” and “happiness”? 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.) Add the endings -ance, -(t) ion, -ness, and -ity to form nouns. Use your dictionary. 给以下词汇添加后缀，使之变成名词。 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 -ance 结尾（多表 “行为、状态” ） -(t) ion 结尾（多表 “动作、结果” ，动词变名词常用 ） -ness 结尾（形容词 + ness 变 “状态、性质” ，超规律 ） -ity 结尾（形容词 + ity 变 “性质、状态” ，稍正式但基础 ） 2b +(t)ion -ness -ity 点击青蛙 Classify the words +ance collect creative pollute able ill accept protect dark fit active 1. Please ______ right now. We need to take quick _______ to solve the problem. 2. She is a _________ girl, and her __________ makes everyone like her. 3. Be _________ to others, and you will receive _________ in return. 4. A new star will __________ in the sky, and its ____________ is really amazing. 5. The story seems not _________ , but it is based on a true _______. 6. You can ________ a beautiful world, and your ____________ can make it come true. 7. We should ___________ with our friends often, and this __________ will last long. 8. This singer is very __________, and his ___________ is growing every day. 9. We need to ______________ more with our parents, and good _______________ can solve many problems. 10. It is __________ to learn English well, and we should know the __________ of it. Complete the sentences with the correct forms of the words. Exercise Practice makes perfect. act action good goodness kind kindness appear appearance real reality imagine imagination connect connection popular popularity communicate communication important importance 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 The smallest ones are as tiny as a pea, and some big ones can be as large as your hand! They can jump in the field. They live in water or on land. Guess what animal is it? pea /piː/ n. 豌豆 It’s a frog. What do you know about the connection between humans and frogs? 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 play an important role in 扮演一个重要的角色 the size of ...的尺寸 然而...表“对比” by...借助...方式 方式状语 Size （体型） Habitat (生存环境) Significance in Research (科研意义) Role (生态作用)） Awareness (认知现状) The ________ frogs are about the size of a pea, while ________ ones can grow ________ a human hand. They are ________ ________in studies on climate change and the ecosystem. Many people know that frogs help to ________ farms by eating insects. Not everyone understands their ____________ in nature. Frogs can live __________ and __________. Read and complete the mind map Frogs are of great __________ in our planet’s ecosystem. importance smallest larger as big as protect importance popular subjects on land in water What can frogs do for nature? Frogs help to protect farms by eating insects. Frogs can help in studies on climate change and the ecosystem. Frogs play an important role in the planet's ecosystem. Production Complete the passage with the correct forms of the words in the box. Jump 08:00 Thank you very much! I find my parents. They are very important for climate change and the ecosystem. I will work with them to protect the environment. Why are frogs so important? How can we protect them? Our planet’s ecosystem is a delicate web. __________ (act) matters—turn good wishes into ___________(good). Small ___________ (kind), like planting trees, helps. ________________ (appear) might look fine, but ____________ (real) has hidden problems. Use _____________ (imagine) for a better future. All life is in ______________ (connect). Humans must communicate to protect nature. Environmental protection gains ______________ (popular), and we know its _______________ (important). Let protecting nature weigh more than short - term convenience. It means a lot to us. Every action and kindness can build a _____________(healthy) planet. Protecting Our Ecosystem Action goodness kindness Appearance reality imagination connection popularity importance healthier Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 $