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(共25張PPT)
Unit 4 Amazing Plants and Animals
Section A（1a-Pronunciation）
· 學習目標
· 新課導入
· 內容講解
· 課堂總結
· 課后作業
Learning goals
1. New words: moss,redwood,cheetah
2. Expressions: one of...
3. Sentences: ① What’s the largest animal in the world
② Well, I think moss is one of the oldest plants.
New words
moss /m s/ n. 苔蘚
cheetah / t i t / n. 獵豹
redwood / redw d/ n. 紅杉；紅木
New words
moss /m s/ n. 苔蘚
redwood / redw d/ n. 紅杉；紅木
cheetah / t i t / n. 獵豹
Lead-in
What can plants and animals do
Textbook
1a
Look at the plants and animals.Use the words in the box to talk about them.
beautiful big fast heavy large
long old small tall short
moss: _______________
blue whale: ____________
old,small
large,heavy
Textbook
1a
Look at the plants and animals.Use the words in the box to talk about them.
beautiful big fast heavy large
long old small tall short
redwood tree: _______________
cheetah: ____________
tall,big
fast,beautiful
Textbook
1b
Listen to the conversations and number the plants and animals in 1a in the order you
hear them.
redwood tree: _______________
cheetah: ____________
tall
fast,beautiful
moss: _______________
short,old
blue whale: ____________
large,heavy
1
2
3
4
Tapescript
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
Tapescript
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 one day.
Conversation 2
Language points
1
最高級變化
（一）形容詞最高級
1. 單音節形容詞：詞尾加 -est
e.g. tall → tallest
e.g. He is the tallest in the basketball team.
他是籃球隊里最高的。
2. 以“輔音字母 + y”結尾的雙音節形容詞：變 y 為 i，加 -est
e.g. happy → happiest
e.g. Today is the happiest day of this week for her.
對她來說，今天是這周最開心的一天。
Language points
1
（二）副詞最高級
1. 單音節副詞：詞尾加 -est
e.g. fast → fastest
e.g. He runs the fastest in the school sports meeting.
他在學校運動會上跑得最快。
2. 多音節副詞：詞前加 most
e.g. carefully → most carefully
e.g. She does her homework the most carefully in the class.
她在班上做作業最認真。
Language points
1
常見不規則變化：good/well → best；bad/badly → worst；many/much → most；little → least；far（距離遠 ）→ farthest；far（程度深 ）→ furthest
e.g. This is the best movie I’ve ever seen.
這是我看過最好的電影。
e.g. He has the least money but the most friends among us.
在我們中，他錢最少但朋友最多。
Language points
練
1.A snail is usually one of the ______ (slow) animals in the world.
slow是單音節形容詞，按照規則，單音節形容詞變最高級直接在詞尾加-est ，所以slow的最高級是slowest,用于描述蝸牛在世界動物里速度方面是很慢的這一比較情況 。
3.This is the ______ (good) gift I’ve ever received.
good的比較級是better，最高級屬于不規則變化，為best,用于強調這個禮物在自己收到過的禮物里是最好的 。
slowest
best
Language points
2
one of + the + 形容詞最高級 + 名詞復數 是英語中最高級的常用固定搭配。
1. 表意：表示“……是……中最……之一” ，用于從復數名詞代表的群體里，突出某一事物在特定屬性（由形容詞最高級體現 ）上處于靠前水平，
2. 結構構成：
(1)“one of” 體現 “……之一” 含義；
(2)“the + 形容詞最高級” 用于強調屬性程度是 “最……” ，像 “tallest（最高的 ）”“most interesting（最有趣的 ）” ；
(3)“名詞復數” 明確比較的群體范圍，表明是在多個事物里選，例如 “cities（城市 ）”“books（書 ）” 。
Language points
2
3. 謂語動詞：“one of + the + 形容詞最高級 + 名詞復數” 整體作主語時，謂語動詞用單數形式 。因為雖然有復數名詞，但核心是 “one（一個 ）” 。
4. 比較范圍：常搭配 “in/of/among...” 短語說明比較范圍 。“in” 多接大的地點、領域范圍，如 “in the world（在世界上 ）”“in China（在中國 ）” ；“of” 后常跟同類事物構成的集合，像 “of all the students（在所有學生中 ）” ；“among” 也用于在多個事物間比較。
Language points
2
5. 限定詞使用：若最高級前有 “China's”“my” 等限定詞，“the” 要省略 ，因為 “the”“a” 與 “this/that”“my/your” 等限定詞不能同時用。
6. 特殊情況：像 “excellent（極好的 ）”“perfect（完美的 ）” 這類本身表 “極致程度” 的形容詞，無最高級形式，不能用于此結構 。
Language points
練
1.Shanghai is one of the most international ______ (city) in the world.
“one of + 最高級 + 名詞復數” 結構里，名詞需用復數形式體現 “……之一” 的群體范圍 。“city” 復數是 “cities”，表示上海是全球國際化城市這個群體里的一員 。
2.Hangzhou is one of the ____________ (beautiful) ______ (place) in China.
形容詞 “beautiful” 是多音節詞，變最高級要在前面加 “most”，即 “most beautiful” ，符合 “the + 最高級” 的結構要求 ；“place” 需用復數 “places”，因為 “one of...” 后接復數名詞，說明杭州是中國漂亮地方這個群體中的一個 。
cities
most beautiful
places
Textbook
1c
Listen again.Match the words with the plants and animals in1a.Some have two answers.
A. heaviest B. largest C. most beautiful
D. oldest E. fastest F. tallest
__________
__________
__________
__________
D
A,B
F
E,C
Textbook
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.
1
Listen and repeat.Add one more word to each group.
Pronunciation
/e / /a / / / /bl/ /kl/ /gl/ /br/ /kr/ /gr/
a,ai,ay i,y,igh oy,oi bl cl gl br cr gr
whale rain stay _____ mice fly high _____ toy join choice _____ black blow blue _____ clean climb dock _____ glad glass globe _____ bread bring brown _____ cross cream cry _____ grass
great
grow
_____
wait
night
enjoy
bless
close
glow
break
crack
grade
2
Listen and repeat.Notice the difference in stress and meaning of the same sentence.
Pronunciation
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)
Summary
New words
Expressions
Sentences
moss,redwood,cheetah
one of...
① What’s the largest animal in the world
② Well, I think moss is one of the oldest plants.
Homework
1
2
Memorize the new words, expressions and sentences in Section A (1a-Pronunciation).
Finish the exercises of the test paper on the book 5·3.

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