资源简介

(共24张PPT)
Unit4
Amazing Plants and Animals
SectionA (1a-pronunciation)
In this unit, you will
1.talk about some amazing plants and animals.
2.use superlatives to compare more than two things.
3.discuss the connection between plants, animals, and our lives.
4.explore why plants and animals are important to us.
1. talk about some amazing plants and animals.
2.learn more about plants and animals by listening to the conversations.
3.learn the formation of the superlative degree.
4. grasp the pronunciation of /e /, /a /, / /, /bl/, /kl/, /gl/, /br/, /kr/ and /gr/ correctly and read words containing the related letters.
Look and share
1. What do you see in the photo
2. What do you think of when you see the photo
What are they doing
They are collecting nectar to make honey
花蜜
In the photo, I can see some yellow flowers.
There are two bees on the flowers.
rabbit
dog
panda
cat
rose
tiger
blue whale
cheetah
sunflower
moss
giraffe
redwood
tree
bee
butterfly
snail
Free talk
What amazing plants or animals do you know
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
redwood tree
cheetah
/ m s /
/we l/
/ redw d/
/ t i t /
small, …
big, …
tall, …
fast, …
1a
Pre-listening
Yaming
Recently, I’m reading a book for a test on animals and plants
It shows nature’s amazing facts! Find the tallest tree, fastest animal, oldest living thing in the world! Let’s see what I learned!
Listen to the conversations and number the plants and animals in the order you hear them.
moss
blue whale
cheetah
redwood tree
1b
4
3
2
1
What can plants and animals do
Watch and learn
Listen again. Match the words with the plants and animals in 1a. Some have two answers.
________
moss
________
blue whale
________
redwood tree
________
cheetah
D
heaviest B. largest C. most beautiful
D. oldest E. fastest F. tallest
A, B
F
C, E
1c
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 _________ animal in the world
Emma: It’s the _________ _________, right
Yaming: Right. It’s also the _________ animal on earth. Next question. Which animal runs the _________
Emma: Oh wait! I just read about it. The _________ runs the _________.
Yaming: Right again! And I think it’s the _________ _________ animal in
the world.
Emma: I completely agree with you.
Conversation 1
largest
blue
whale
heaviest
fastest
cheetah
fastest
most
beautiful
Listen and fill
What’s amazing about Blue whale and Cheetah
Blue whale is the largest and heaviest animal on earth.
Cheetah runs the fastest and is the most beautiful animal in the world.
Yaming: Now let’s answer the questions about plants. What is the _________ plant in the world
Emma: Hmm, I’m not sure. Do you have any idea
Yaming: Well, I think _________ is one of the _________ 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 _________ in the world
Emma: The _________ _________, right
Yaming: Yes! I hope I can see some someday
Conversation 2
oldest
moss
oldest
tallest
redwood
tree
Listen and fill
Redwood tree is the tallest tree in the world.
Moss is one of the oldest plants on earth.
What’s amazing about moss and redwood tree
“heaviest” is the superlative of “heavy”
“largest” is the superlative of “large”
“fastest” is the superlative of “fast”
“most beautiful” is the superlative of “beautiful”
“oldest” is the superlative of “old”
“tallest” is the superlative of “tall”
List and read
最高级
(superlatives)
Don’t forget “the” in a sentence.
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
…
…
1d
(You can tell the facts or your own opinion.)
Each group chooses one plant or animal, and then discusses more amazing things about it and share their findings with the whole class.
Group work
WORD BANK
tall; beautiful; big; large; busy; small; hard-working;
friendly; cute; cool; fast; popular; heavy; lazy; old; strong; colorful; slow; …
Try to use superlatives!
Listen and repeat. Add one more word to each group.
/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 clock _____ glad glass globe _____ bread bring brown ______ cross cream cry _____ grass
great
grow
_________
day
why
crazy
blind
boy
brush
club
glove
grammar
发/e /的字母或字母组合
除了a, ai, ay之外，eigh也发此音。如：eight, neighborhood等。
发/a /的字母或字母组合
除了i, y, igh 之外，ie 也发此音。如：lie, pie, die等。
1
辅音连缀
在英语词汇中，如果有两个或两个以上的辅音音素结合在一起，这种语法现象称为辅音连缀。辅音连缀发生在词首，词中和词尾。如：
词首 blue 词中 basketball 词尾 desk
读辅音连缀时，两个辅音不能有停顿，几乎同时发音，前面的辅音必须读得轻一些，短促些。
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)
句子重音
句子重音可分为三类：表意重音，逻辑重音和情感重音。
表意重音 表意重音是一种非常普遍的现象。一般来说，在句子中需重读的词都是实词，不重读的词多为虚词或结构词。
逻辑重音 逻辑重音的作用是表达说话者的意愿，说话者可以把重音放在想要强调的任何单词上。
情感重音 情感重音是一种特殊的重音。在口语中，当说话者想要表达强烈的情感时，他会把强重音放在他想要强调的词上。
2
1. I’m starting a test on animals and plants. 我要开始一场关于动植物的测试。
在此句中，on 是介词 ，意为 “关于；有关” ，用来表明 test（测试）的内容主题是 animals and plants 。
例如：She wrote a book on history. 她写了一本关于历史的书。
【辨析】about与on
on 强调专业性、学术性或严肃性，内容通常是系统的、深入的，涉及理论、研究或专门领域。
about 侧重日常性、通俗性或泛泛而谈，内容更偏向非正式的内容。
例如：She told me a story about her pet dog.
她给我讲了一个关于她宠物狗的故事。
Language points
2. What’s the largest animal in the world 世界上最大的动物是什么？
largest是large的最高级形式。最高级前面一般会有定冠词the进行修饰。
形容词和副词的最高级一般分为规则变化和不规则变化。
规则变化如下：
构成方法 比较级
单音节词和部分双音节词 一般情况下，最高级词尾加-est tallest；shortest；fastest
以字母e结尾的词，最高级词尾加-st largest；latest
重读闭音节词尾只有一个辅音字母时，先双写该辅音字母，然后最高级词尾加-est biggest；fattest；thinnest
以“辅音字母+ y”结尾的双音节词，先把y改为i，然后最高级词尾加-est easiest；heaviest；earliest
多音节词和部分双音节词 词前加most构成最高级 most beautiful；most popular
Language points
不规则变化如下：
It’s also the heaviest animal on earth.
The cheetah runs the fastest.
And I think it’s the most beautiful animal in the world.
I think moss is one of the oldest plants.
原级 最高级
good / well best
bad / badly worst
many / much most
little least
far farthest
furthest
例如：
What’s the largest animal in the world
Which animal runs the fastest
What is the oldest plant in the world
Which kind of tree is the tallest in the world
Language points
3. Well, I think moss is one of the oldest plants. 嗯，我认为苔藓是最古老的植物之一。
one of + 限定词 + 复数名词 / 代词
限定词包括冠词（the）、形容词性物主代词（my, their）、指示代词（these, those）等。表示 “…… 中的一个”，强调在整体中选取一个个体。
例如：
She is one of my friends. 她是我的一个朋友。
This is one of the best movies I’ve ever seen.
这是我看过的最好的电影之一。
Language points
【主谓一致】
one of 结构作主语时，谓语动词用单数（因为核心词是 “one”，表示 “一个”）。
例如：
One of the students is from Canada. 这些学生中有一个来自加拿大。
One of these books has a missing page. 这些书中有一本缺页了。
【最高级搭配】
“one of” 常与 形容词最高级 连用，构成 one of the + 最高级 + 复数名词，
表示 “最…… 的…… 之一”。
The Great Wall is one of the greatest wonders in the world.
长城是世界上最伟大的奇迹之一。
Language points
1. My cat is _________ (lazy) than my dog. It sleeps16 hours a day!
2. The Yangtze River is one of the v (long) rivers in the world.
3. This is the ________ (big) apple I have ever eaten.
4. I think autumn is the _________ (cool) season. The weather is just right.
5. Tina’s English is _________ (good) than mine. She always gets higher scores in tests.
6. The elephant is the _________(heavy) land animal. A big one can weigh over 5 tons!
7. In our class, Lily is the _________(busy) student. She joins three clubs and studies hard.
lazier
biggest
coolest
better
heaviest
busiest
Exercise-填空题
Exercise-翻译题
1. 这个湖泊是我们城市里最深的湖泊。
This lake is the deepest lake in our city.
2. 蓝鲸是世界上最大的动物。
The blue whale is the largest animal in the world.
3. 蜂鸟是世界上最小的鸟类。(hummingbird )
The hummingbird is the smallest bird in the world.
4. 这个花园里的玫瑰是我见过最美丽的。(I have ever seen)
The roses in this garden are the most beautiful I have ever seen.
Must-do 必做
1.Read the conversations.
2.Create information cards for the animals and plants in 1a, label the corresponding adjectives (e.g., blue whale—largest, heaviest), and attempt to describe other common animals and plants using superlatives (e.g., panda—most lovely).
Choose to do 选做
1. Search for more amazing plants and animals in the world.
Homework

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