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Unit 4 Amazing Plants and Animals
第1课时 Section A
(1a-1d & Pronunciation 1-2)
R·八年级上册
ln 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 makes plants and animals amazing
BIG
Question
Learning Objectives
最高级
v. 比较
n. 联系
Look and share
What do you see in the photo
What do you think of when you see the photo
Flowers and bees.
When I see the photo, I think of
the beauty of nature and the
importance of bees in pollination.
Watch and answer: What is the video about
The amazing plants in the world.
Free talk
What’s your favorite animal or plant Why
useful
cute
hard-working
beautiful
Pre-listening
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: _______
/m s/ n. 苔藓
small
large
beautiful big fast heavy large
long old small tall short
redwood tree: ____
cheetah: _________
/ t i t /
n. 猎豹
/ redw d/ n. 红杉；红木
tall
fast
While-listening
Listen to the conversations and number the plants and animals in 1a in the order you hear them.
1b
moss: _________
blue whale: _______
redwood tree: ____
cheetah: _________
small
large
tall
fast
3
1
4
2
听力策略：
捕捉关键词
Listen again. Match the words with the plants and animals in 1a. Some have two answers.
1c
moss: _________
blue whale: _______
redwood tree: ____
cheetah: _________
A. heaviest B. largest C. most beautiful
D. oldest E. fastest F. tallest
A. heaviest
B. largest
C. most beautiful
F. tallest
D. oldest
E. fastest
Emma:
Yaming:
Emma:
Yaming:
Emma:
Yaming:
Emma:
Yaming:
Emma:
Hi, Yaming. What are you doing
Hi, Emma. I’m starting a test on ________________.
Sounds fun. Let’s take it together.
OK. First question. What’s __________ animal in the world
It’s the _________, right
Right. It’s also __________ animal on earth. Next question. Which animal runs _________
Oh wait! I just read about it. The _______ runs the fastest.
Right again! And I think it’s ________________ animal in the world.
I completely agree with you.
animals and plants
the largest
the heaviest
the fastest
the most beautiful
Listen and fill
Conversation 1
blue whale
cheetah
测试
一起做
同意某人
彻底地
Yaming:
Emma:
Yaming:
Emma:
Yaming:
Emma:
Yaming:
Conversation 2
Now let’s answer the questions ______________. What is _____________ plant in the world
Hmm, I’m not sure. Do you have any idea
Well, I think moss is _________________ plants. It appeared on earth around __________ years ago ... Oh, look here. I’m correct!
Interesting! Let’s go on!
Which kind of tree is _______________ in the world
The redwood tree, right
Yes! I hope I can see some someday.
about plants
the oldest
one of the oldest
470 million
the tallest
出现
在地球上
正确的
未来某一天
Moss is one of the oldest plants on earth.
The blue whale is the largest and heaviest animal on earth.
The redwood tree is the tallest tree in the world.
The cheetah runs the fastest and is the most beautiful animal in the world.
Look and say
最高级(superlatives)
最高级用于 _______者或以上 的人/物比较，表示“最……”的概念。
结构公式：_______ + 形容词/副词最高级 (+ ___________)
Moss is one of the oldest plants on earth.
The redwood tree is the tallest tree in the world.
The blue whale is the largest and heaviest animal on earth.
The cheetah runs the fastest and is the most beautiful animal in the world.
观察下列句子并试着归纳最高级的结构公式。
三
the
比较范围
old— oldest
fast — fastest
tall —tallest
一般情况下，在词尾加-est
large — largest
fine — finest
以字母e结尾的词，在词尾加-st
heavy — heaviest
easy — easiest
early — earliest
以“辅音字母 + y”结尾的双音节词，先把y改为 i ,再加-est
形容词/副词最高级变化规则
big — biggest
fat — fattest
thin — thinnest
重读闭音节词，词尾只有一个辅音字母时，先双写该辅音字母，再加-est
beautiful — most beautiful
interesting — most interesting
delicious — most delicious
多音节词和部分双音节词在词前加most
形容词/副词最高级变化规则
原级 最较级
good / well best
bad / badly worst
many / much most
little least
far farthest
furthest
不规则变化：
Post-listening
Ask and answer questions about the plants and animals in 1a.
1d
What’s amazing about the blue whale
It’s the largest / biggest animal in the world.
What’s the … animal/plant in the world
It’s the ...
☆☆☆ ☆☆ ☆
1. I can find more information about plants and animals well.
2. I can remember their information accurately.
3. I have good pronunciation(语音) and intonation(语调).
Assessment
Can you find more amazing animals or plants
change its body color
avoid predators
intelligence
change the texture and color of its skin
the smallest bird in the world
flap its wings extremely fast
generate electric shocks
stun prey and defend against predators
Chameleon
（变色龙）
Hummingbird（蜂鸟）
Octopus
（章鱼）
Electric eel
（电鳗）
When an insect lands on its leaf, the leaf can snap shut quickly to trap and digest it.
store a large amount of water in its thick trunk
huge trunk
grow extremely fast
sometimes up to 91cm in a single day
the largest unbranched inflorescence
give off a smell like rotting flesh
Venus Flytrap（捕蝇草）
Bamboo
（竹子）
Baobab
（猴面包树）
Corpse flower（尸花 / 泰坦魔芋）
Can you find more amazing animals or plants
Listen and repeat. Add one more word to each group.
1
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
clock
_____
glad
glass
globe
_____
bread
bring
brown
_____
cross
cream
cry
_____
grass
great
grow
_____
发音 发音方式 常见字母 （组合） 例词
/e /
/a /
/ /
发音时，由/e/音滑向/ /音，前重后轻，口形随之变化
发音时，由/ɑ /音滑向/ /音，前重后轻，口形随之变化
a, ai, ay
quite 相当
cry 哭
high 高
i, y, igh
danger 危险
afraid 害怕的
maybe 也许
发音时，由/ /音滑向/ /音，前重后轻，口形随之变化
oy, oi
enjoy 喜欢
joy 乐趣
noise 噪声
发音 发音方式 常见字母 （组合） 例词
/bl/
/kl/
/gl/
发音时，先发/b/的音，再快速滑到/l/的音，前重后轻，口形随之变化
发音时，先发/k/的音，再快速滑到/l/的音，前重后轻，口形随之变化
bl
cl
发音时，先发/g/的音，再快速滑到/l/的音，前重后轻，口形随之变化
gl
blind 瞎的
blow 吹
black 黑色（的）
cloud 云彩class 班级clothes 衣服
glue 胶水
glove 手套
glasses 眼镜
发音 发音方式 常见字母 （组合） 例词
/br/
/kr/
/gr/
发音时，先发/b/的音，再快速滑到/r/的音，前重后轻，口形随之变化
发音时，先发/k/的音，再快速滑到/r/的音，前重后轻，口形随之变化
br
cr
发音时，先发/g/的音，再快速滑到/r/的音，前重后轻，口形随之变化
gr
umbrella 伞
break 间断
breath 一口气
create 创造
screen 屏幕
across 横过
agree 赞成
group 群；组grade 年级
Listen and repeat. Notice the difference in stress and meaning of the same sentence.
2
重音
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)
在英语句子中，实词（如名词、动词、形容词、副词等）承载重要信息，一般需要重读；而充当语法功能的词（如冠词、连词、介词、助动词等）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不同而变化。
句子重音（Ⅰ）
I have an amazing friend.
（强调“我”有一个很棒的朋友，而不是其他人）
I have an amazing friend.
（强调我有“一个”很棒的朋友，而不是几个）
I have an amazing friend.
（强调我有一个“很棒的”朋友，而不是其他类型的朋友）
一般情况下，I, an 等功能词在句中弱读，但在上述情境中这两个词需要重读。
Read the conversations.
Make a conversation with your partner about the plants or animals you know well and write it down.
Homework

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