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八年级英语人教版·上册
Section B (1a-1f)
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
A bee flies to a flower. It takes nectar. Then it carries pollen to another flower. The flower grows into a fruit. We eat the fruit.
What’s their connection?
学海风暴®系列
一、新课引入
How are plants and animals connected with us?
Free talk
学海风暴®系列
二、新课讲解
Language points
1. How are plants and animals connected with us?动植物是如何与我们联系在一起的?
connect作动词,意为“关联;连接”。
connect ... with ... 把……和……联系起来
We should connect theory with practice. 我们应该把理论和实践联系起来。
学海风暴®系列
二、新课讲解
Language points
【拓展】(1) connect to ... 连接……
be connected with/to ... 与……相连/有关联
Click here to connect to the Internet. 点击这里连接网络。
They are directly connected with the wind speed and the time that wind lasts.它们与风速和风力持续的时间直接相关。
(2) connection n. 连接;联系
学海风暴®系列
二、新课讲解
Look at the title and the pictures below. Guess what the text is about.
1a
The importance of bees
学海风暴®系列
二、新课讲解
Read the text and underline the adjectives the writer uses to describe bees.
1b
We Can’t Live Without Bees
Imagine you go to the supermarket in your area, but there are almost no fruits, vegetables, honey, milk, eggs, or chocolate. How would you feel? Disappointed? Angry? Sad? At this moment you realize people, plants, and animals are all connected. We need each other to live, and bees are one of the best examples of this connection.
省略that的宾语从句
动词不定式作目的状语
祈使句,imagine+省略that的宾语从句
学海风暴®系列
二、新课讲解
Bees are very hard-working animals, and their greatest work is pollination. On one trip, they often visit 50 to 100 flowers. As they fly from one flower to another, they take pollen with them. This action helps plants grow. In fact, without their work, about 80 per cent of the plants in the world cannot grow. For this reason, many scientists believe that bees are the most important animals on this planet.
pollination
from ... to ... 从……到……
for this reason 出于这个原因
学海风暴®系列
二、新课讲解
Bees are also one of the most interesting animals in the world. For example, they work hard together to make their homes. In order to store honey, they create honeycombs. Another interesting thing about bees is how they communicate. When a bee finds new food, it uses a dance to tell the others where and how far away the food is.
honeycomb
动词不定式作目的状语
in order to 为了
how 引导表语从句
where和 how far 引导的并列宾语从句,作 tell 的直接宾语
学海风暴®系列
二、新课讲解
Bees play an important part in the ecosystem of our planet. However, the number of bees is dropping, and scientists are worried. Bees need our help, and there is a lot we can do. Think about what you can do to protect one of the most amazing animals on earth.
play a part (in sth) 参与某事
the number of ... “……的数量”,谓语动词用单数
what 引导宾语从句
a lot “许多;大量”,指代前文提到的帮助
学海风暴®系列
二、新课讲解
Language points
2. We can’t live without bees. 没有蜜蜂我们不能存活。
without作介词,意为“无;没有”,后常接名词、代词或动词-ing形式。
They left without saying goodbye. 他们没说再见就离开了。
【拓展】若without引出的介词结构表示条件,则可与“if ... not ...”结构进行同义句转换。
I won’t finish the work without your help. = If you don’t help me, I won’t finish the work. 你不帮我的话,我将完成不了这项工作。
学海风暴®系列
二、新课讲解
Language points
3. Imagine you go to the supermarket in your area, but there are almost no fruits, vegetables, honey, milk, eggs, or chocolate. 想象你去附近的超市,但那里几乎没有水果、蔬菜、蜂蜜、牛奶、鸡蛋和巧克力。
imagine作动词,意为“想象;设想”,其用法如下:
I can’t imagine life without friendship now. 我现在无法想象没有友谊的生活。
I can’t imagine (myself) dancing in front of so many people. 我无法想象(自己)在那么多人面前跳舞。
I imagine (that) you are very tired. 我猜想你很累了。
学海风暴®系列
二、新课讲解
Language points
4. Disappointed? 失望?
disappointed作形容词,意为“失望的;沮丧的”,常用来修饰人。
I’m afraid that you’re very disappointed with me. 恐怕你对我是非常失望的。
学海风暴®系列
二、新课讲解
Language points
【拓展】(1) disappoint作动词,意为“使失望”,常作及物动词,相当于let ... down,后接名词或代词作宾语。
The result disappointed him. 结果使他失望。
(2) disappointing作形容词,意为“令人失望的”,常用来修饰物。
The wine was excellent, but the food was disappointing. 葡萄酒非常好,但饭菜却令人失望。
(3) disappointment作名词,意为“失望”。
学海风暴®系列
二、新课讲解
Language points
5. In fact, without their work, about 80 per cent of the plants in the world cannot grow. 事实上,没有它们的工作,世界上百分之八十的植物不会生长。
per cent作名词,意为“百分之……”,也可写作percent,与数词连用时,数词应置于per cent之前。
Twenty-five per cent of the circle is white. 这个圆的25%是白色的。
学海风暴®系列
二、新课讲解
Language points
【注意】per cent of后接名词作主语时,谓语动词的单复数形式要与of后名词的单复数形式保持一致。
About 55 per cent of the pupils here are girls. 这里大约55%的小学生是女生。
Twenty per cent of their income is used to buy food. 他们收入的20%被用于购买食物。
学海风暴®系列
二、新课讲解
Language points
6. For this reason, many scientists believe that bees are the most important animals on this planet. 出于这个原因,许多科学家认为蜜蜂是这个星球上最重要的动物。
for this reason意为“出于这个原因;因此”。起承上启下的作用,用于解释因果关系。
It’s raining outside. For this reason, you have to stay at home. 外面正在下雨。因此,你只能待在家里。
学海风暴®系列
二、新课讲解
Language points
【拓展】reason的相关短语:
have no reason for (doing) sth 做某事没有理由
the reason why ... …… 的原因
the reason is that ... 原因是……
I have no reason for doing it. 我没有这样做的理由。
We don’t know the reason why he was late. 我们不知道他迟到的原因。
The reason is that he is ill. 原因是他病了。
学海风暴®系列
二、新课讲解
Language points
7. In order to store honey, they create honeycombs. 为了贮存蜂蜜,它们建了蜂巢。
(1) in order to是固定搭配,意为“目的是;为了”,强调目的,后接动词原形构成不定式结构在句子中作目的状语,否定形式是在to前面加not,即in order not to。
We have to study hard in order to pass the exam. 为了通过这次考试,我们必须努力学习。
In order not to be late, you should go now. 为了不迟到,你应该现在就走。
学海风暴®系列
二、新课讲解
Language points
【拓展】含in order to的句子可以转变为由so that或in order that引导的状语从句。
She ran quickly in order to catch the bus. = She ran quickly in order that she could catch the bus. = She ran quickly so that she could catch the bus. 她快步跑为的是赶上公共汽车。
学海风暴®系列
二、新课讲解
Language points
(2) store作动词,意为“贮存;存储”。
This reservoir is used to store water for our town. 这个水库是用来为我们小镇储存水的。
【拓展】store还可作名词,意为“商店;百货商店”。
Jim will mind the store while I’m away. 我不在时吉姆会照看店铺的。
学海风暴®系列
二、新课讲解
Language points
8. Another interesting thing about bees is how they communicate.有关蜜蜂的另一件有趣的事是它们是如何交流的。
communicate作动词,意为“交流;沟通”,communicate with sb意为“与某人交流”。communicate的名词形式为communication,意为“交流;沟通”。
I like to communicate with my family. 我喜欢和我的家人沟通。
Speech and writing are men’s most important ways of communication. 说和写是人类最重要的沟通方式。
学海风暴®系列
二、新课讲解
Language points
9. Think about what you can do to protect one of the most amazing animals on earth. 想想你可以做些什么来保护地球上这种令人惊奇的动物之一。
protect作动词,意为“保护;防护”,常用短语protect ... from/against ... ,意为“保护……免受/遭……”。
We should protect rare animals. 我们应该保护珍稀动物。
She protected her eyes from the sun with her hand. 她用手遮住太阳以保护她的眼睛。
【拓展】protection作不可数名词,意为“保护;防卫”。
学海风暴®系列
二、新课讲解
Read again and complete the mind map with the information from the text.
1c
importance
interesting facts
problem
● their number is _________
● their greatest work: _____________
● visit __________________
● help __________________
Bees
● ______________________
______________________
______________________
______________________
______________________
______________________
● ______________________
______________________
______________________
______________________
______________________
______________________
pollination
50 to 100 flowers
plants grow
dropping
They work hard together to make their homes. In order to store honey, they create honeycombs.
When a bee finds new food, it uses a dance to tell the others where and how far away the food is.
学海风暴®系列
二、新课讲解
Discuss the questions.
1d
1. Can you give another title for the text?
2. What other interesting facts do you know about bees?
3. What do you know about the connection between humans and other insects,
such as ants and butterflies?
Some Interesting Facts About Bees
A bee has six legs and two pairs of wings.
Ants dig tunnels, letting soil get air for plants and crops. Butterflies move pollen when drinking nectar, helping plants and fruits we eat grow.
学海风暴®系列
二、新课讲解
Imagine you are the writer. Write one more paragraph about bees and add it to the text.
1e
One simple way to help bees is to plant more flowers in our gardens or even on balconies. Flowers like sunflowers provide bees with lots of nectar and pollen. Every little thing we do can make a big difference in keeping bees safe and ensuring they keep doing their important work for us all.
学海风暴®系列
二、新课讲解
How do you understand the connection between plants, animals, and people? Think of some examples and then share them with a partner.
1f
A: We all know people and nature are connected. But can you give me an
example of how they are connected?
B: Sure. I visited a small town in Guangdong once. There are many large trees
in the town. They are home to many birds. A lot of tourists come to see the
trees and the birds ...
be home to 是……的栖息地/家园
学海风暴®系列
三、归纳小结
1. new words and phrases:
connect, connected, be connected with / to, without, imagine, honey, disappointed, connection, pollination, pollen, action, in fact, per cent
(=percent), for this reason, planet, in order to, store, honeycomb, communicate, play a part (in sth), ecosystem, protect, importance, title, human, ant, be home to sb/sth
2. reading:
Review he passage describing bees in 1b.
学海风暴®系列
四、强化训练
一、用所给词的适当形式填空
1. What are the __________ (reason) for your being late today?
2. Twenty per cent of the students __________ (exercise) every day.
3. We felt ____________ (disappoint) that our team lost the football game.
4.We should do everything we can _________(protect) the environment.
5. I can’t __________ (imagine) what our life will be like if there aren’t any trees on earth.
reasons
exercise
disappointed
to protect
imagine
学海风暴®系列
四、强化训练
二、完成句子
1. 网络把我们和外面的世界连接起来。(补全句子)
The Internet ________ us________ the outside world.
2. 在未来,或许我们能和外星人交流。(补全句子)
Maybe we can ____________ ________ aliens in the future.
3. None of us can live without air. (改为同义句)
________ ________ ________ ________ air, none of us can live.
4. Alice saved money in order to buy a new bike . (改为同义句)
Alice saved money ________ ________ she could buy a new bike.
If there is no
so that
connects with
communicate with
学海风暴®系列
五、布置作业
Read the passage describing bees in 1b.
Share your ideas about how we’re connected with plants and animals with a partner.
学海风暴®系列
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