牛津深圳版英语七年级上册 Unit 3　The earth 课时2 阅读课件(共29张PPT)

(共29张PPT)
Unit 3　The Earth
课时2
阅读
一
课时精讲
二
课时过关
三
能力提升
课文重点句子讲解。
1．Some places are very hot, and some are very cold. 一些地方很热，一些地方很冷。
some…some… 一些……另一些……
some…others… 一些……另一些 (不是全部) ……
some…the others… 一些……其他的 (剩下的全部) ……
区分：one…the other… 一个……另一个……
2．Some are large. Some are small. 一些很大。一些很小。
(1) large意为“大的，巨大的”，常指面积、范围，可表示数和量 (当它直接用于人时，可表示身体的大)，其反义词为small。a large number of 大量的。如：
They say China is a large and beautiful country.他们说中国是一个面积大而美丽的国家。
(2) big意为“大的”，常指容积、重量等 (还可表示“伟大，重要”之意)，常用于具体事物。如：
Jim's cake is the biggest of all. 吉姆的蛋糕是所有蛋糕中最大的。
There is a big tree beside the house. 房子旁边有一棵大树。
(3) great意为“极大的，伟大的，重大的”，常指数量，体积大 (或指抽象的事物或精神方面的东西，如知识，能力，人格等)，用来指人时，表示“伟大的，杰出的”。如：
We heard a great noise. 我们听到一个很大的响声。
Mao Zedong is a great leader of China. 毛泽东是中国的伟大领袖。
3．Some live on the land. Some fly in the sky. Some live under the water.
有些生活在陆地上，有些飞翔在天空中，还有些住在水底下。
注意介词搭配：
on the farm 在农场　　 on the playground 在操场
on the wall 在墙上面 in the wall 在墙里面
on the tree 在树上 (长在树上) in the tree 在树上 (跑到树上)
4．There are also many people like you and me on Earth.
地球上还有很多像你我一样的人。
(1) also, too, either的区别：
also常用于肯定句中，位于实义动词前，或用于be动词，情态动词之后；而too通常用于肯定句末； either用于否定句末。如：
I really like this song, and I like the first one too. 我很喜欢这首歌。我也喜欢第一首。
I don't like singing. She doesn't like singing, either. 我不喜欢唱歌，她也不喜欢唱歌。
(2) 本句中like是介词，意为“像……一样”。如：
That's not right. Do it like this. 那样不对，像这样做才对。
5．The Earth provides us with air, water and food.
地球为我们提供了空气、水和食物。
provide及物动词，意为“提供”，provide sb. with sth. ＝ provide sth. for sb。如：
The Sun provides us with light and heat. ＝ The Sun provides light and heat for us.
太阳给我们提供光和热。
【辨析】
provide 指“准备好必需品来供应”
offer 指“主动地提供帮助、支撑等”
They provide food for the hungry children. 他们为饥饿的孩子们提供食物。
The boys offered to help the old. 男孩们主动帮助老年人。
offer to do sth. 主动做某事
6．Today, there is a lot of pollution. 今天，有很多污染。
pollution不可数名词，意为“污染”。
pollute动词，意为“污染； 弄脏”。
air pollution 空气污染 noise pollution 噪声污染
There is a lot of pollution in the air here. 这里的空气有大量的污染。
7．We burn things to make energy. 我们燃烧东西来获取能量。
(1) burn及物动词，意为“燃烧； 点燃”。energy不可数名词，意为“能量； 能源”。如：
She burnt all her books. 她把书全烧了。
(2) make energy“制造能量； 获取能量”。如：
Now, people use water, the wind and the Sun to make energy.
如今，人们利用水、风和太阳来获取能量。
8．We put our rubbish into the sea and under the ground. 我们把垃圾倒入海洋、埋入地下。
put…into… 把……放入……； 把……倒入…… 如：
They put the waste water into the river. 他们把废水倒入河中。
Please put all your toys into the box. 请把你所有的玩具都放入这个箱子里。
拓展：和put有关的短语：
put up 举起； 张贴　　　 put off 推迟； 拖延
put away 把……收拾好 put down 放下； 写下； 记下
put on 穿上 put out 熄灭； 扑灭
9．We must stop doing these things. 我们必须停止做这些事。
stop doing sth. 意为“停止做某事”，即停下手头正在做的事情。如：
It's time for class. Stop talking. 到上课时间了，不要说话了。
区分：stop doing sth. 和stop to do sth.
前者是指停止手头正在做的事情，而后者是指停下手头的事情，去做另一件事情。如：
We stopped talking when the teacher walked into the classroom.
当老师走进教室时，我们停止说话。
We are all tired. Let's stop to have a rest. 我们都累了，停下来休息一会儿吧。
10．It is important for us to protect the Earth for our future.
对我们来说，为未来而保护地球是很重要的。
It is＋adj.＋for sb.＋to do sth. 对某人来说做某事是……　如：
It is important for us to learn English. 对我们来说学英语是很重要的。
It is good for me to eat more vegetables. 多吃蔬菜对我而言是有好处的。
以上句型中，有时也可将for sb. 省去，即“It is＋adj.＋to do sth.”，意为 “做某事是……的”。
一、课文语法填空。
　　The Earth is 1._____ beautiful place. There are forests and rivers, mountains and fields. Some places are very hot and some are very cold. There are different 2.________ (plant)．Some are large. Some are small. All plants need light and water. There are different animals on Earth too. Some live 3._______ the land. Some fly in the sky. Some live under the water. There are also many people 4._______ you and me. The Earth 5.___________ (provide) us with air, water and food. It is 6._______ (we) home.
a
plants
on
like
provides
our
　　Today, there is a lot of 7.____________ (pollute)．We burn things 8.__________ (make) energy. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants.
　　We must stop 9._________ (do) these things. It is important for us 10._____________ (protect) the Earth for our future.
pollution
to make
doing
to protect
二、完成句子，每空一词。
1．关于地球你知道些什么？
What do you _______ ________ the Earth
2．深圳有许多漂亮的地方。
There are many ____________ _________ in Shenzhen.
3．这场考试对我来说很重要。
This exam is very ____________ _____ me.
know about
beautiful places
important to
4．不要在房子里烧东西，因为很危险。
__________ ______ things in the house, because it is dangerous.
5．你必须按时睡觉。You ______ ____ to bed on time.
6．我父亲有许多书。有些有趣，有些无趣。
My father has many books. ________ are interesting and _______ are boring.
7．我们必须停止污染环境。
We must ______ ____________ the environment.
Don't burn
must go
Some
some
stop polluting
8．今天天气如何？
__________ the weather ______ today
9．露西有许多不同款式的衣服。
Lucy _____ ______ ___________ kinds of clothes.
10．爸爸告诉我不要杀青蛙。
Father tells me not ____ ______ frogs.
What's
like
has many different
to kill
阅读理解。
　　There are many little things that we can do together to help save our Earth. Everyone can do something to make the Earth better, so what can we do to help
　　★Drive less. Now many families have cars. But the smoke from cars always pollutes the air. Why not walk or ride bikes when you go to school or go to work It is not only good for your health but also makes less air pollution.
　　★Buy furniture in second-hand shops. Every year people cut down many trees to make new furniture. This is bad for the Earth. You can buy furniture in second-hand shops. In these shops, people usually make the old furniture become new again. And it can help you save much money. If you don't need some furniture, don't throw it away. Donate (捐赠) it to one of these shops. They will help reuse the resources (资源)．
　　★Don't throw rubbish everywhere! It's not hard to keep your rubbish at hand until the nearest dustbin, or put it in a bag and throw it away later.
　　★Use recycling bins (废物回收箱). That way, people can recycle things easily. Try to use them around the workplace or at school, as well as in your home.
(　　) 1.When you don't need your old furniture, .
A．burn it 　　　　 B．throw it away
C．give it to some special shops D．bury (埋葬) it
(　　) 2.What does the underlined word “reuse” mean
A．To look after sth. B．To find sth.
C．To protect sth. D．To use sth.again.
C
D
(　　) 3.Which of the following is NOT the writer's advice
A．Stopping buying cars.
B．Using special bins for recycling.
C．Buying second-hand furniture.
D．Putting your rubbish into the nearest dustbin.
A
(　　) 4.What does the underlined word “them” refer to
A．Waste things. B．The recycling bins.
C．The students at school. D．The workers in the office.
(　　) 5.Where can you read this passage
A．In a storybook. B．In a magazine.
C．In a history book. D．In a menu.
B
B
谢谢大家！