资源简介

(共25张PPT)
Unit 4 Amazing Plants and Animals
Section A（1a-Pronunciation）
· 学习目标
· 新课导入
· 内容讲解
· 课堂总结
· 课后作业
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. 苔藓
cheetah / t i t / n. 猎豹
redwood / redw d/ n. 红杉；红木
New words
moss /m s/ n. 苔藓
redwood / redw d/ n. 红杉；红木
cheetah / t i t / n. 猎豹
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
最高级变化
（一）形容词最高级
1. 单音节形容词：词尾加 -est
e.g. tall → tallest
e.g. He is the tallest in the basketball team.
他是篮球队里最高的。
2. 以“辅音字母 + y”结尾的双音节形容词：变 y 为 i，加 -est
e.g. happy → happiest
e.g. Today is the happiest day of this week for her.
对她来说，今天是这周最开心的一天。
Language points
1
（二）副词最高级
1. 单音节副词：词尾加 -est
e.g. fast → fastest
e.g. He runs the fastest in the school sports meeting.
他在学校运动会上跑得最快。
2. 多音节副词：词前加 most
e.g. carefully → most carefully
e.g. She does her homework the most carefully in the class.
她在班上做作业最认真。
Language points
1
常见不规则变化：good/well → best；bad/badly → worst；many/much → most；little → least；far（距离远 ）→ farthest；far（程度深 ）→ furthest
e.g. This is the best movie I’ve ever seen.
这是我看过最好的电影。
e.g. He has the least money but the most friends among us.
在我们中，他钱最少但朋友最多。
Language points
练
1.A snail is usually one of the ______ (slow) animals in the world.
slow是单音节形容词，按照规则，单音节形容词变最高级直接在词尾加-est ，所以slow的最高级是slowest,用于描述蜗牛在世界动物里速度方面是很慢的这一比较情况 。
3.This is the ______ (good) gift I’ve ever received.
good的比较级是better，最高级属于不规则变化，为best,用于强调这个礼物在自己收到过的礼物里是最好的 。
slowest
best
Language points
2
one of + the + 形容词最高级 + 名词复数 是英语中最高级的常用固定搭配。
1. 表意：表示“……是……中最……之一” ，用于从复数名词代表的群体里，突出某一事物在特定属性（由形容词最高级体现 ）上处于靠前水平，
2. 结构构成：
(1)“one of” 体现 “……之一” 含义；
(2)“the + 形容词最高级” 用于强调属性程度是 “最……” ，像 “tallest（最高的 ）”“most interesting（最有趣的 ）” ；
(3)“名词复数” 明确比较的群体范围，表明是在多个事物里选，例如 “cities（城市 ）”“books（书 ）” 。
Language points
2
3. 谓语动词：“one of + the + 形容词最高级 + 名词复数” 整体作主语时，谓语动词用单数形式 。因为虽然有复数名词，但核心是 “one（一个 ）” 。
4. 比较范围：常搭配 “in/of/among...” 短语说明比较范围 。“in” 多接大的地点、领域范围，如 “in the world（在世界上 ）”“in China（在中国 ）” ；“of” 后常跟同类事物构成的集合，像 “of all the students（在所有学生中 ）” ；“among” 也用于在多个事物间比较。
Language points
2
5. 限定词使用：若最高级前有 “China's”“my” 等限定词，“the” 要省略 ，因为 “the”“a” 与 “this/that”“my/your” 等限定词不能同时用。
6. 特殊情况：像 “excellent（极好的 ）”“perfect（完美的 ）” 这类本身表 “极致程度” 的形容词，无最高级形式，不能用于此结构 。
Language points
练
1.Shanghai is one of the most international ______ (city) in the world.
“one of + 最高级 + 名词复数” 结构里，名词需用复数形式体现 “……之一” 的群体范围 。“city” 复数是 “cities”，表示上海是全球国际化城市这个群体里的一员 。
2.Hangzhou is one of the ____________ (beautiful) ______ (place) in China.
形容词 “beautiful” 是多音节词，变最高级要在前面加 “most”，即 “most beautiful” ，符合 “the + 最高级” 的结构要求 ；“place” 需用复数 “places”，因为 “one of...” 后接复数名词，说明杭州是中国漂亮地方这个群体中的一个 。
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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