资源简介

(共24张PPT)
Unit 4 Amazing Plants and Animals
Section A What can plants and animals do
(1a-1d)&Pronunciation
Learning Objectives
In this lesson, you will:
1.learn more words and expressions about plants and animals.
2.get key information about the plants and animals mentioned in the conversations.
3.talk about these plants and animals using the target languages.
4.grasp the pronunciation of the following sounds: /e /, /a /, / /, /bl/, /kl/, /gl/, /br/, /kr/, /gr/ and correctly read words containing the related letters or letter combinations.
5.notice the difference in stress and meaning of the same sentence.
Look and Share
What do you see in the photo
What do you think of when you see the photo
Two bees are working hard to collect nectar(花蜜).
/ nekt r/
Bees are important.They help with the pollination(授粉) so the plants can grow and flowers can make seeds(种子).
/ p l 'ne ( )n/
/si d/
Free Talk
Read the title of the unit and discuss the following questions.
Do you think bees are amazing or not Share your reasons.
What else animals or plants do you think are amazing
What makes them amazing
Do you know the following plants or animals
moss
blue whale
redwood tree
cheetah
What facts
do you know about these plants and animals
ancient: appeared before dinosaurs
no roots or flowers
loves moisture: grows in wet areas
tiny but tough
Moss is a small, green and ancient plant that grows in wet areas. It has no flowers or roots and feels like a soft carpet (地毯).
very tall: over 100 meters
strong and thick bark(树皮)
grow in USA: mostly in California
very old: can live 2000 years
Redwoods are giant, ancient trees that grow in California’s foggy coasts/mountains!
the largest and heaviest animal
eat tiny food: eat krill(磷虾)—4 tons a day
heart size: as big as a small car
Blue whales are gentle giants, with a heart the size of a car, but they only eat tiny krill.
the fastest land animal: runs in 100km/h
light body: slim, long legs and flexible spine（灵活的脊柱）, long tail for balance
special marks：black “tear lines” on the face and black spots
Cheetahs are the fastest land animals, reaching 100km/h in short bursts.
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
e.g. Moss is small but very old.
e.g. Blue whales are big and heavy. I think they are
beautiful and elegant.
...
1b
Listen to the conversations and number the plants and animals
in la in the order you hear them.
1
2
3
4
1c
Listen again. Match the words with the plants and animals in 1a. Some have two answers.
blue whale:______________
1
blue whale:______________
3
A. heaviest B. largest C. most beautiful
D. oldest E. fastest F. tallest
A B
D
cheetah:______________
2
redwood tree:____________
4
A. heaviest B. largest C. most beautiful
D.oldest E. fastest F. tallest
F
C E
Listening Material
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
Conversation 2
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.
We use "the + -est" or "the most + adjective" (e.g., the most beautiful) to talk about the extreme animals and plants.
1d
Ask and answer questions about the plants and animals in la.
What's amazing about the blue whale
It's the largest / biggest animal in the world.
Why are Emma and Yaming talking about these animals and plants
Because they are taking a test on extreme animals and plants.
Think and Share
Can you think of more questions for the test on animals and plants
（动植物之最）
Which animal is the biggest on land
giraffe
What is the tallest animal on land
Which animal has the longest lifespan
Greenland shark
(average life span: 400 years)
Which plant grows the fastest
bamboo
elephant
Pronunciation
Read the following words. Pay attention to pronunciation of the letters in bold in each column and find out the rules.
Read and Think
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
/e /
/a /
/ /
/bl/
/kl/
/gl/
/br/
/kr/
/gr/
Listen and repeat. Add one more word to each group.
1
/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
game
wait
like
cry
light
boy
noise
block
blood
clear
class
glove
glue
brush
break
crazy
create
grade
green
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)
Listen and repeat. Notice the difference in stress and meaning of the same sentence.
2
句子重音（Sentence Stress）
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变化而变化。
例如：
Please pass me the 'book.
(强调把“书”递给我，而不是把别的东西给我)
Please pass the book to 'me.(强调把书递给“我”，而不是给其他人)
A: I think she will win.
B:She 'won't.(预测她“不会”赢)
A:She 'will.(坚信她一定“会”赢)
一般情况下，me、will等功能词在句中弱读，但在上述情境中这两个词需要重读。

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