Unit 4 第1课时 Section A 1a—1d-【七彩课堂】2025-2026学年八年级英语上册同步课件（人教版2024）

Conversation one. Hi, yan ming. What are you doing? Hi ema. I'm starting a test on animals and plants. Sounds fun. Let's take IT together. okay. First question, what's the largest animal in the world? It's the blue whale, right? right? It's also the heaviest animal on earth. Next question, which animal runs the fastest? Oh, wait, I just read about IT. The cheater runs the fastest. right again, I think it's the most beautiful animal in the world. I completely agree with you. Conversation two. Now let's answer the questions about plants. What is the oldest plant in the world? HMM? I'm not sure. Do you have any idea? Well, I think moss is one of the oldest plants. IT appeared on earth round four hundred and seventeen million years ago. Oh, look here. I'm correct. interesting. Let's go on. Which kind of tree is the tallest in the world? The red wood tree, right? Yes, I hope I can see some one day. Unit 4 Amazing Animals and Plants Section A 1a—1d To talk about some amazing plants and animals. To learn more about plants and animals by listening to the conversations. To learn the formation of the superlative degree. Objectives Lead-in What do you know about moss? What makes it amazing? It’s a type of green plant. I know a saying: A rolling stone gathers no moss.(滚石不生苔。) It’s one of the oldest plants. ... What do you know about a cheetah? What makes it amazing? It runs the fastest. I think it’s the most beautiful animal in the world. Cheetah, built for speed. (猎豹，为速度而生) ... Look at the plants and animals. Use the words in the box to talk about them. 1a beautiful big fast heavy large long old small tall short moss: __________ blue whale: ____________ cheetah: _______________ redwood tree:______________ old, small large, heavy tall, beautiful fast, beautiful What can plants and animals do? Listen to the conversations and number the plants and animals in the order you hear them. 1b moss blue whale cheetah redwood tree 4 3 2 1 What can plants and animals do? 1c Listen again. Match the words with the plants and animals in 1a. Some have two answers. Listening tips: 1.Learn about the listening tasks and look through the words in the box. 2.Understand the characteristics and the meaning of options. 3.Pay attention to the key words while listening. heaviest B. largest C. most beautiful D. oldest E. fastest F. tallest moss: ________ blue whale: ________ redwood tree: ________ cheetah: ________ B, A E, C D F 最高级 (superlatives) “heaviest” is the superlative of “heavy” “largest” is the superlative of “large” “most beautiful” is the superlative of “beautiful” “oldest” is the superlative of “old” “fastest” is the superlative of “fast” “tallest” is the superlative of “tall” 形容词 / 副词最高级变化规则 old— oldest fast — fastest tall —tallest 一般情况下，在词尾加-est large — largest fine — finest 以字母e结尾的词，在词尾加-st heavy — heaviest easy — easiest early — earliest 以“辅音字母 + y”结尾的双音节词，先把y改为 i ,再加-est 形容词 / 副词最高级变化规则 big — biggest fat — fattest thin — thinnest 重读闭音节词词尾只有一个辅音字母时，先双写该辅音字母，再加-est beautiful — most beautiful interesting — most interesting delicious — most delicious 多音节词和部分双音节词在词前加most 不规则变化 原级 最较级 good / well best bad / badly worst many / much most little least far farthest furthest GOOD, BETTER, BEST Good, better, best, Never let it rest, Till good be better, And better best. Bad, worse, worst, Never fight against, Get better and better, And you’ll be the best. big bigger biggest This apple is the biggest of the three. 10 yuan 20 yuan 50 yuan This pen is the most expensive of the three. expensive more expensive 1d Ask and answer questions about the plants and animals in 1a. What’s amazing about the blue whale? It’s the largest / biggest animal in the world. It runs the fastest. And I think it’s the most beautiful animal in the world. What’s amazing about the cheetah? … … Compare and see Who can answer correctly and quickly? 1. What’s the largest animal in the world? 2. What’s the heaviest animal on earth? 3. Which animal runs the fastest? 4. What’s the oldest plant in the world? 5. Which kind of tree is the tallest in the world? Language points 1. moss n. 苔藓 mossy adj. 长满苔藓的 moss moss ‌(苔藓) 是一类小型非维管植物，属于苔藓植物门（bryophyta），常生长于潮湿环境，如土壤、朽木或墙角。在植物学语境中，苔藓与地衣(lichen)有明确区分，苔藓为独立植物，而地衣是真菌与藻类的共生体。 A rolling stone gathers no moss. 滚石不生苔。 2. cheetah n.猎豹 It is the fastest land animal, running at 112 km/h! With golden fur and black spots, it looks like a beautiful painting. Sadly, they are endangered. We must protect their grasslands and stop hunting. Let’s save these amazing cats together! It can run as fast as a car. 写出下列单词的比较级和最高级。 1. good _______ _____ 2. comfortable ________________ ________________ 3. big _______ ________ 4. happy ________ _________ 5. cheap ________ _________ 6. many _______ ______ 7. difficult ______________ ______________ 8. little ______ ______ better best more comfortable most comfortable bigger biggest happier happiest cheaper cheapest more most more difficult most difficult less least Exercises Homework 1.Read the conversations. 2.Make a conversation with your partner about the plants or animals you know well and write it down. 伴你成长 null 115621.43 $