资源简介

(共29张PPT)
Section A (1a~Pronunciation)
Unit 4
Amazing Plants and Animals
In this unit, you will
talk about some amazing plants and animals.
use superlatives to compare more than two things.
discuss the connection between plants, animals, and our lives.
explore why plants and animals are important to us.
What do you see in the photo
What do you think of when you see the photo
I see flowers and bees.
Look and share
Section A
What can plants and animals do
学习目标
1
2
3
理解最高级用法，能用最高级（heaviest、largest 等）简单描述动植物特征。
听懂关于动植物特征的对话，根据对话内容排序，抓取对动植物的描述，了解不同动植物独特性。
准确识别并掌握 /e /、/a /、/ / 双元音，以及 /bl/、/kl/、/gl/ 等辅音连缀的发音规则；能识别句子中不同单词作为重音时的语音变化，掌握通过改变重音位置区分语义的规则。
It lives in the ocean.
It’s very big and heavy.
It’s the largest animal in the world.
blue whale 蓝鲸
Think and guess
What is it
Think and guess
What is it
It’s a beautiful animal.
It can run very fast to catch food.
It has a spotted coat and long legs.
cheetah
猎豹
What is it
It’s small and green.
It can grow in wet places.
It looks soft.
Think and guess
moss
苔藓
Think and guess
What is it
It’s very tall.
It has a thick trunk (树干) and green leaves.
It can live for a very long time.
redwood tree 红杉树
beautiful big fast heavy large
long old small tall short
We can use the following words to describe animals and plants.
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: ____________
heavy, large, long
small, old
beautiful big fast heavy large
long old small tall short
redwood tree: ____________
cheetah: ____________
beautiful, big, fast
beautiful, tall
Listen to the conversation and number the plants and animals in 1a in the order you hear them.
1b
moss
blue whale
redwood tree
cheetah
1
2
3
4
1c
Listen again. Match the words with the plants and animals in 1a. Some have two answers.
A. heaviest
D. oldest
B. largest
E. fastest
C. most beautiful
F. tallest
moss: _________
blue whale: _________
redwood tree: _________
cheetah: _________
B A
E C
D
F
构成方法 例词
单音节词和部分双音节词 一般情况下，词尾加 -est tall → tallest
fast → fastest
以字母 e 结尾的词，词尾加 -st large → largest
late → latest
重读闭音节词尾只有一个辅音字母时，双写尾字母，然后加 -est big → biggest
thin → thinnest
以 “辅音 + y” 结尾的双音节词，变 y 为 i , 然后加 -est heavy → heaviest
early → earliest
Let’s learn
形容词和副词的最高级的构成 （规则变化）
构成方法 例词
单音节词和部分双音节词 一般情况下，词尾加 -est tall → tallest
fast → fastest
以字母 e 结尾的词，词尾加 -st large → largest
late → latest
重读闭音节词尾只有一个辅音字母时，双写尾字母，然后加 -est big → biggest
thin → thinnest
以 “辅音 + y” 结尾的双音节词，变 y 为 i , 然后加 -est heavy → heaviest
early → earliest
多音节词和部分双音节词 词前加 most beautiful → most beautiful
carefully → most carefully
原级 比较级 最高级
good / well better
bad / badly worse
many / much more
little less
far farther / further
形容词和副词的最高级的构成 （不规则变化）
best
worst
most
least
farthest / furthest
Let’s learn
最高级，意为 “最……”。表示三者或三者以上（人或事物）的比较，其中一个在某一方面超过其他几个。
后面可用带有of、in、among的短语等来说明比较的范围。例如：
The blue whale is the largest and heaviest animal in the world.
The cheetah runs (the) fastest among all land animals.
2. 形容词最高级前一般要加定冠词the，副词最高级前的the可以省去。
Emma: Hi, Yaming. What are you doing
Yaming: Hi, Emma. I’m starting a test on animals and plants.
Emma: Sounds fun. Let’s take it together.
Yaming: OK. First question. What’s the largest animal in the world
Emma: It’s the blue whale, right
Yaming: Right. It’s also the heaviest animal on earth. Next question.
Which animal runs the fastest
Emma: Oh wait! I just read about it. The cheetah runs the fastest.
Yaming: Right again! And I think it’s the most beautiful animal in the
world.
Emma: I completely agree with you.
Conversation 1
Listen and repeat. Then role-play the conversations.
Yaming: Now let’s answer the questions about plants. What is the oldest
plant in the world
Emma: Hmm, I’m not sure. Do you have any idea
Yaming: Well, I think moss is one of the oldest plants. It appeared on
earth around 470 million years ago... Oh, look here. I’m correct!
Emma: Interesting! Let’s go on!
Yaming: Which kind of tree is the tallest in the world
Emma: The redwood tree, right
Yaming: Yes! I hope I can see some someday.
Conversation 2
语音语调【10分】：发音准确，语调自然（语调自然上扬表疑问，句尾稍降调体现肯定陈述的语气），合理运用连读弱读，语速适配。
内容呈现【10分】：重读关键信息体现对内容的理解（如通过重读突出动植物 “神奇之处”）；按语义划分意群，停顿时长、位置合理。
合作表现【10分】：模仿真实交流语气，提问者好奇、回答者肯定 / 兴奋，有 “交流感”，而非机械读词。动作、表情贴合语境，营造真实交流氛围。
Role play
1d
Ask and answer questions about the plants and animals in 1a.
A: What’s amazing about the ...
B: It ... in the world.
2
Listen and repeat. Notice the difference in stress and meaning
of the same sentence.
I visited the redwood forests in California several times. (not other forests)
I visited the redwood forests in California several times. (not other places)
I visited the redwood forests in California several times. (not only once)
Pronunciation
句子重音（Sentence Stress ）
在英语句子中，实词承载重要信息，一般需要重读；而充当语法功能的词一般弱读。但这条读音规律并非一成不变，句子中的重音可以随着说话者要表达的意思的变化而变化。例如：
Please pass me the book. 强调把“书”递给我，而非其他东西。
Please pass me the book. 强调把书递给“我”，而非给其他人。
Let’s learn
I bought the English books in the bookstore last week.
Let’s practice
(not other books)
(not other places)
(not other times)
通过重音体现不同表意重点。
I bought the English books in the bookstore last week.
I bought the English books in the bookstore last week.
I bought the English books in the bookstore last week.
1
Listen and repeat.
/e / /a / / /
a, ai, ay i, y, igh oy, oi
whale rain stay mice fly high toy
join
choice
/bl/ /kl/ /ɡl/
bl cl gl
black blow blue clean climb clock glad
glass
globe
/br/ /kr/ /ɡr/
br cr gr
bread bring brown cross cream cry grass
great
grow
Pronunciation
Add one more word to each group.
cake
dailyway
bike
try
light
boy
coin
block
close
break
glue
crack
1
/e / /a / / /
a, ai, ay i, y, igh oy, oi
whale rain stay _____ mice fly high _____ toy
join
choice
_____
/bl/ /kl/ /ɡl/
bl cl gl
black blow blue _____ clean climb clock _____ glad
glass
globe
_____
/br/ /kr/ /ɡr/
br cr gr
bread bring brown _____ cross cream cry _____ grass
great
grow
_____
grade
课堂总结
通过本课的学习，我能够:
1. 正确拼读本课单词（ moss, redwood, cheetah）及1a单词的最高级。
2. 听懂关于动植物特征的对话，根据对话内容排序，抓取对动植物的描述，了解不同动植物独特性。
3. 理解最高级用法，能用最高级描述 1a 中动植物特征。
4. 准确识别并掌握 /e /、/a /、/ / 双元音，以及 /bl/、/kl/、/gl/ 等辅音连缀的发音规则，熟练认读每个音标组内的单词且能自主补充至少一个符合对应音标规则的新单词。
能识别句子中不同单词作为重音时的语音变化，掌握通过改变重音位置区分语义的规则 。
Homework
听录音，跟读模仿本课听力文本的两段对话。
查阅资料，选一种感兴趣的动植物（非课本），用英语写 5 句描述（含最高级），下节课分享 “它的神奇之处” 。

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