内容正文:
八上英语 Unit 4 Section A (1a-2d) 导学案
(课题:Talk about amazing plants and animals)
【学习目标】
1. 掌握描述动植物特征的形容词及最高级形式(biggest, fastest, most useful等)。
2. 能运用句型 What do you think is the...? 和 I think... is the... 进行比较和表达观点。
3. 通过2d对话,学会在自然环境中向他人介绍有趣的动植物。
【学习重难点】
• 重点:形容词最高级的构成(规则/不规则)及句型 A is the + 最高级 + 名词 + I know.
• 难点:多音节形容词最高级加 most;不规则变化(good-best, bad-worst)。
一、自主预习·课前热身(Self-study)
Task 1: 核心词汇(根据汉语或解释写单词)
1. 古代的;古老的 _________
2. 象征;标志 _________
3. 重的;繁重的 _________
4. 达到(某数量、程度);至多有 _________
5. bamboo (n.) → (adj. 木质的) _________
Task 2: 最高级变形(写出下列词的最高级)
1. tall → _________
2. large → _________
3. heavy → _________
4. beautiful → _________
5. good/well → _________
6. bad/badly → _________
Task 3: 观察与思考
看1a图片(蓝鲸、猎豹、红杉、竹子),用一句话说说你认为最惊人的植物或动物。
e.g. I think the cheetah is the fastest animal.
二、课堂探究·合作释疑(Classroom Interaction)
Step 1: 听力聚焦(Listening 1b, 2a-2b)
• 听前预测:观察1a图片,圈出你知道的形容词(big, fast, tall, useful)。
• 听中记录:
◦ 1b:勾出录音中提到的动植物(Blue Whale, Cheetah, Giant Redwood, Bamboo)。
◦ 2a:圈出 Greg 去过的 places (zoo, forest, botanical garden)。
◦ 2b:完成句子:Greg saw a ______ (panda) and a ______ (redwood tree).
Step 2: 对话研读(2d Role-play)
阅读 Helen 和 Greg 关于植物园之行的对话,完成下列信息抓取:
1. Where did Greg go yesterday? (_________)
2. What did he see there?
◦ Animal: _________ (It is the _________ animal in the world.)
◦ Plant: _________ (It can grow _________ fast.)
Step 3: 语言要点(Notes 一线教学重难点)
1. 最高级句型结构:
◦ 主语 + be + the + 最高级 + 名词 + 范围(I know/in the world...)。
◦ The blue whale is the heaviest animal I know.
2. as...as 同级比较(出现在2d中):
◦ Bamboo can grow as fast as 30 cm a day.
3. up to:达到(某数量)。
◦ These bamboos can grow up to 30 cm a day.
三、当堂检测·分层过关(Test)
Level A: 基础过关(全班必做)
1. 用括号内词的正确形式填空:
◦ The elephant is the _________ (heavy) animal on land.
◦ This is the _________ (beautiful) flower I have ever seen.
◦ He runs the _________ (fast) in our class.
2. 单选:
◦ — What do you think is the ______ animal in the ocean?
— I think the shark is.
A. dangerous B. more dangerous C. most dangerous
◦ Bamboo is one of ______ plants in the world.
A. useful B. more useful C. the most useful
Level B: 能力提升(小组活动)
情景操练:The Amazing World
学生A扮演导游,学生B/C扮演游客。用以下句型介绍一种你了解的神奇动植物(真实或想象)。
• A: Welcome to the Amazing World. What do you want to know?
• B: What do you think is the strangest plant?
• A: I think the Venus Flytrap is. It can eat insects.
• (提示词:Venus Flytrap 捕蝇草, Cactus 仙人掌, Hummingbird 蜂鸟)
Level C: 语篇运用(选做/作业)
用3-4句话描述你心中“最...”的动植物,必须用上最高级。
e.g. I think the panda is the cutest animal. It mainly eats bamboo...
【参考答案】
一、自主预习
Task 1: 1. ancient 2. symbol 3. heavy 4. up to 5. wooden
Task 2: 1. tallest 2. largest 3. heaviest 4. most beautiful 5. best 6. worst
Task 3: 开放回答。
二、课堂探究
Step 1: 1b: Blue Whale, Cheetah, Giant Redwood, Bamboo; 2a: zoo, forest, botanical garden; 2b: panda, redwood tree.
Step 2: 1. the botanical garden
2. • Animal: panda
• The blue whale is the heaviest animal in the world.
• Plant: bamboo (It can grow as fast as 30 cm a day.)
三、检测
Level A: 1. heaviest; most beautiful; fastest 2. C; C
Level B: 开放回答。
Level C: 开放回答。
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