课件22张PPT。Unit 8 Connected to NatureLesson 47 Save Our World课文呈现知识讲解…………Lesson 47
Connected? to Nature词汇
听写课堂导入课文1课堂小结课后作业…课堂练习 同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！From the pictures above, we learn that all the living things depend on one another.
Should we do something for nature?THINK ABOUT IT
·Do all the living things on the planet depend on one
another?
·What can we do for nature?The natural world is filled with living things. Living things start out weak and small and slowly grow strong and big. You are a living thing. Each of your classmates is a living thing. Flowers, grass and trees are living things, too. Bees, ants, doves, dogs and cats—these are all living things.All living things need food and water to grow. Think about yourself. When you are hungry, you need to eat. You eat fruit, vegetables, meat and fish. They can help you grow big and strong. You drink water when you are thirsty. Now think about a tree. When a tree is hungry, it gets food from the soil. Trees drink water, too.
We are different in some ways, but all living things are connected. We all live on the same planet, and we depend on each other. If we pollute the rivers and oceans, fish may get sick or even die?. Some birds live off? fish. If the birds eat the sick or dead fish, they may die off. Nature is a balancebetween all the living things on the planet. If one species dies off, then another species may die off, followed by another, and another...
We should respect the earth and all the living things on it. connect/k?'nekt/ v.连接考向be connected with与……有关系
eg: She is connected with the Smiths by marriage.
她与史密斯家联姻。知识点1eg：The two cities are connected by a railway.
这两个城市由一条铁路连接。典例这座桥连接着这个岛屿与大陆。
The bridge ________ the island with the mainland.【点拨】把一物与另一物连接起来，用connect。connects die/da?/ v.死考向辨析 die, death, dying与dead知识点2eg：Her husband died suddenly last week.
她的丈夫上周猝死。典例Lei Feng ________ for many years, but his spirit is still encouraging us.(广东)
A．died B．has died
C．was dead D．has been dead【点拨】采用题眼法。句意：雷锋死了很多年了，但是他的精神仍然鼓舞着我们。for many years表示的是一段时间，是本题题眼，应该用现在完成时。D一语辨异：My cat died two years ago.
It has been dead for two years. Its death makes me sad. 我的猫两年前去世了。
它死了两年了。它的死让我很悲伤。 魔法
记忆 live off 以……为食，以……为生考向与live有关的短语：live on以……为食
eg: Sheep live on grass. 羊以食草为生。知识点3eg：She will not be able to live off her writing.
靠写作她将难以谋生。典例熊猫主要以竹子为食。(天津)
Pandas mainly________ ________bamboo.【点拨】这里是说熊猫的习性，故用一般现在时。 live on/offLet's Do It !Read the lesson and put these sentences in the
correct order.□All living things are connected.
□We should protect the environment.
□Living things live in the world.
□All living things need water and food to grow. 34121．His mother has been ________ for ten years.
2．People should ________ and understand each other.
3．Don't always ________ others. You should have your own
ideas.
4．We are ________ by the Internet.
5．The trees ________ out, and this place became a desert.Let's Do It !respect connect die dead followdeadrespectfollow connected died2) Fill in the blanks with the correct forms of the
words in the box.3) Read the passage and fill in the blanks with the
sentences below.Many years ago, there were more animal species than there are now. There were many forests. The rivers were clean. The sky was blue. Birds sang from morning until night?.________
But later, people cut down the trees in the forests, killed the animals and built factories and buildings. ________ People's houses were buried by soil in floods. Some animals lost their homes, and they attacked people. Some factoriesLet's Do It !BDpolluted the air, water and people's food. The earth is getting warmer. Some scientists say the sea level will rise by at least 1 metre in the next 100 years.________
People are now living in a worse and worse environment. ________ We need to reduce pollution and protect our environment.
A. Some houses beside the sea will disappear.
B. People lived together with many kinds of animals.
C. We should do something to save our world.
D. They changed the earth.CAfrom morning until night从早到晚考向from...until...从……到……，常用于表示时间，其中的until，相当于till，既可以作介词，也可以作连词。类似的短语还有：from...to...介词短语，既可以表示时间，也可以表示距离。常用短语：from time to time时不时地；from door知识点4eg： My mother is busy from morning until night.
我妈妈从早忙到晚。典例我们已经好多年没见面了，但是我们时不时地通邮件。(宿迁)
We haven't seen each other for many years, but we send emails ___________________.to door挨家挨户地； from one to another从这一个到另一个。
eg: How far is it from Beijing to Xi'an?
从北京到西安有多远？
We go to school from Monday to Friday.
我们从周一到周五去上学。from time to time本节课我们主要学习了以下重点内容：
重点单词：connect, die
重点短语：live off, from…until…1.熟记所学知识点，并各举一例
2.完成本课时的课后作业
