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八年级英语人教版·上册
Section B (2a-4d)
授课人:XXXX
Unit 4
Amazing Plants and Animals
1
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依据最新教材划分课时,内容与教材同步
学海风暴®系列
一、新课引入
When the whale dies, it gives life to hundreds of creatures.
Have you heard of whale fall?
学海风暴®系列
二、新课讲解
Circle the odd ones. Then give your reasons.
2a
1. habit height size weight
2. joy happiness fun enjoy
3. angry disappointed smart sad
4. appear look seem watch
5. honey milk juice bread
学海风暴®系列
二、新课讲解
Language points
1. happiness 幸福;快乐
happiness作名词,意为“幸福;快乐”,其形容词为happy,副词为happily。
You should not identify wealth with happiness. 你不应该认为财富就等于幸福。
学海风暴®系列
二、新课讲解
Language points
【拓展】有些形容词加后缀-ness可构成抽象名词,表示性质、情况、状态等。
ill 生病的 → illness 疾病
kind 友好的;仁慈的 → kindness 仁慈
good 善良的 → goodness 善良
sad 伤心的;难过的 → sadness 悲伤;悲痛
shy 害羞的;腼腆的 → shyness 害羞;腼腆
学海风暴®系列
二、新课讲解
Add the endings -ance, -(t)ion, -ness, and -ity to form nouns. Use your dictionary.
2b
1. act ____________ 2. good ____________
3. kind ____________ 4. appear ____________
5. real ____________ 6. imagine ____________
7. connect ____________ 8. popular ____________
9. communicate _____________ 10. important ____________
action
goodness
kindness
appearance
reality
imagination
connection
popularity
communication
importance
名词后缀
学海风暴®系列
二、新课讲解
Complete the sentences with the correct forms of the words in the box.
2c
1. I felt ____________ when my favourite flowers died.
2. After the rain, some mushrooms ____________ in the garden.
3. In my hometown, people often use bamboo baskets to ____________ food.
4. What did you put in your luggage? It ____________ a ton.
5. I can’t ____________ my life without my pets. They mean a lot to me.
disappointed
appeared
store
weighs
appear disappoint imagine store weigh
imagine
mean a lot to sb 对某人来说意义重大
学海风暴®系列
二、新课讲解
Complete the passage with the correct forms of the words in the box.
2d
You may not realize it, but frogs play an important role in our
____________ ecosystem. The smallest frogs are about the size
of a pea, while larger ones can grow as big as a human hand.
Many people know that frogs help to ____________ farms by eating insects. ____________, not everyone understands their ____________ in nature.
Frogs can live on ____________ and in water. Because of this, they are
popular subjects in studies on climate change and the ecosystem.
planet
protect
However
importance
land
部分否定,“并不是每个人都”
prep. 关于
“然而”,表对比
however important land planet protect
学海风暴®系列
二、新课讲解
Read the text.
3a
The Blue Whale
The blue whale is the largest and heaviest animal on earth. It can weigh as much as 200 tons. Many people like watching blue whales swim, and they think it is one of the most beautiful things to see. Blue whales live in all oceans except the Arctic Ocean. They eat a lot, but they eat some of the tiniest animals in the ocean. A blue whale can eat around four tons of these a day.
“多达;达到……之多”,用以描述数量或程度
动词不定式作后置定语
adv. 大约
学海风暴®系列
二、新课讲解
Read the text.
3a
Blue whales can live up to 90 years. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. This food lasts for over a year and it helps to create a lively and healthy ecosystem. Blue whales play an important role in our world, so we must protect them.
现在分词短语作后置定语
last for 持续
学海风暴®系列
二、新课讲解
Language points
2. This food lasts for over a year and it helps to create a lively and healthy ecosystem. 这种食物可以保存一年以上,有助于创造一个充满活力的、健康的生态环境。
lively 作形容词,意为“精力充沛的;充满活力的”,既可以描述人的性格,也可以用来描述地方、事件以及思维等。
He showed a lively interest in politics. 他对政治表现出浓厚的兴趣。
学海风暴®系列
二、新课讲解
Language points
【辨析】lively, alive, live与living
词汇 含义 用法
lively 生气勃勃的;(色彩)鲜艳的 修饰人或物,常作定语或表语
alive 活着的 修饰人或动植物,常作表语、补语或后置定语
live 活的,读作/laɪv/ 修饰人或物,一般作前置定语
living 活着的 修饰人或物,常作表语或定语
学海风暴®系列
二、新课讲解
Language points
She is a lively girl and popular with everyone. 她是个充满活力的女孩子,很受大家欢迎。
The colour of the clay works is lively. 陶土作品的色彩很鲜艳。
This is a live/living fish. = This is a fish alive. 这是一条活鱼。
This fish is alive/living. 这条鱼是活的。
学海风暴®系列
二、新课讲解
Complete the table.
3a
Blue whale facts
Weight
Where they live
Food
How long they live
Importance in nature
as much as 200 tons
in all oceans except the Arctic Ocean
some of the tiniest animals in the ocean
up to 90 years
help to create a lively and healthy ecosystem
学海风暴®系列
二、新课讲解
Imagine you are a blue whale. Use the first person to rewrite the first paragraph.
3b
Hello everyone! My name is Billy the Blue Whale. I am __________
________________________. I’m heavy, but I _____________.
I live in______________________________. I can eat ___________
____________________________.
the largest
and heaviest animal on earth
like swimming
all oceans except the Arctic Ocean
around four
tons of the tiniest animals a day
学海风暴®系列
二、新课讲解
Complete your passage about the blue whale based on the text in 3a.
3c
Also, I can live up to 90 years. When I die at sea, I will become food for many kinds of animals living in and around the sea. This food lasts for over a year and helps to create a lively and healthy ecosystem. We play an important role in your world, so please protect us.
学海风暴®系列
二、新课讲解
Work in groups. Choose or create the title of your poster.
4a
The Strangest Animal
The Cutest
Animal
The Most
Amazing Plant
The Most
Beautiful
Animal
The Oldest
Tree
The Most
Popular
House Plant
学海风暴®系列
二、新课讲解
Collect pictures and find out information about the plant or animal that you chose.
4b
1. What is its name?
2. Where does it live / grow?
3. Why did you choose it?
4. What are some interesting facts about it?
The axolotl.
It lives in lakes in Mexico. It stays in water all its life.
Because it looks strange and funny.
It never grows up. It keeps a baby look forever. It can regrow its legs, tail, and even parts of its heart.
蝾螈
学海风暴®系列
二、新课讲解
Make your poster.
4c
The axolotl is a special water animal. It looks so strange and funny. It lives in lakes in Mexico, and stays in water all its life.
It has many interesting facts. It never grows up and keeps a baby look forever. If it loses a leg or tail, it can regrow a new one — even parts of its heart!
In the ecosystem, axolotls eat small water bugs and worms.Also,
there are some other animals eat axolotls. However, the number of
the axolotl is getting smaller. We should protect them and their home.
蝾螈
学海风暴®系列
二、新课讲解
Present your poster in class. Then vote for the best one.
4d
学海风暴®系列
二、新课讲解
Reflecting
1. What amazing plants and animals did you learn about in the unit?
2. When do you use the superlative forms of adjectives and adverbs?
3. Can you describe some amazing plants or animals in the world?
4. How are we connected with plants and animals?
Take care of animals and plants because we cannot live without them.
学海风暴®系列
三、归纳小结
1. new words and phrases:
happiness, disappoint, mushroom, ton, role, play a role (in), pea, climate, ocean, except, tiny, lively
2. Reading:
The Blue Whale in 3a.
学海风暴®系列
四、强化训练
一、用所给词的适当形式填空
1. Sitting down to eat with friends and family builds a strong __________ (connect).
2. Everyone should know the __________ (important) of taking exercise.
3. Love is the key to __________ (happy).
4. Millie is a __________ (live) girl. She always takes part in all kinds of activities.
5. Everyone plays an important role in __________ (protect) the environment.
connection
importance
happiness
lively
protecting
学海风暴®系列
四、强化训练
二、书面表达
随着社会的发展进步,人们越来越重视环境保护。我们认识到了树木在保护环境中的重要作用,知道树木可以美化环境、净化空气。请根据以下提示,以“Why are trees important?”为题写一篇英语短文,词数不少于70。
提示: be home to, keep the air ...
Why are trees important?
____________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________
学海风暴®系列
四、强化训练
Why are trees important?
____________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Trees are important to us. They help us in many ways.
First, they keep the air cool and clean. They are the main fighters against air pollution. Second, trees are home to many kinds of animals, like insects, birds and plants. Third, trees give many things to us, such as paper, fruit, oil and tea. Fourth, trees can make the environment more beautiful. In many cities, people plant trees on both sides of the roads or streets to make the city pleasant. Last, trees can stop soil from running away with rain.
Trees are important and useful in our daily lives. We must protect them well.
学海风暴®系列
五、布置作业
1. Talk with your partner about how to protect animals
and plants.
2. Preview the new words and expressions in Unit 5.
学海风暴®系列
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