课件25张PPT。7B Unit 4 Save the trees
(Period 1 New words)Learning aimsStudents can read and write the key words and phrases.
会认读、会书写
Students can know meanings and usages of the key words and phrases.
知意思、懂用法
Students can use the key words and phrases properly.
会运用Words and phrases learning
单词、短语认读Unit
4Module 2 Man’s best friendsOxford Englishsavediscussfightharmfultake inlook aroundfor examplebe made ofmillions ofbe good forLet's read!furniture1. save
2. discuss
3. fight
4. harmful
5. furniture
6. take in The usages of the vocabularies
词汇用法7. look around
8. for example
9. be made of
10. millions of
11. be good forI saved the animals from the flood.用法:
save one's life 挽救某人的生命
save money 存钱 save time/water/oil 节约时间/水/石油1. save v. 拯救=keep safe/rescue Thanks for saving my life in the accident. 我把动物从洪水中救了出来。We should save oil, or there won't be any left in the world. 我们应该节约用油，否则世界上的石油将会匮乏。感谢你在车祸当中救了我。 v. 节省，节约；储蓄，储存[se?v] 2.discuss [d??sk?s] v. 讨论 =talk over in a group discussion n. 讨论用法：
discuss sth. with sb. 与某人讨论某事物
have a discussion 讨论I will discuss the situation with colleagues tomorrow.
The teacher asked us to have a short discussion.明天我会和同事们讨论一下这个情况。 老师让我们短暂地进行一下讨论。 The chimpansee had a fight with its enemy yesterday.
It was fighting for freedom.
We should fight against air pollution. 3.fight [fa?t] v. 斗争；打架（过去式：fought）我们应该与空气污染作斗争。fighter n. 战士它正为了自由而斗争。这只黑猩猩昨天和它的敌人打架了。用法：
have a fight with sb. =fight with sb. 和某人打架
fight for sth.为（事业，自由，真理，权利等）而斗争（争取某事的努力）
fight against sth. 和......斗争/战斗（对抗某事的努力）Smoking is harmful to our health.
One should never intend to do harm to others ,
but should always guard against the harm others
might do to him.
4.harmful adj. 有害的harm n. 损害吸烟有害健康。害人之心不可有，防人之心不可无。用法：
be harmful to =do harm to= be bad for 对……有害
5.furniture [u]n. 家具Beds, chairs, tables and desks are furniture.
The poor family doesn't have much furniture.
We can buy a piece of furniture for them.
这个贫穷的家家具不多。床、椅子、桌子和书桌都是家具。我们可以买一件家具送给他们。用法：
furniture为不可数名词，可用a piece of, an article of（一件）以及some, much（很多）来修饰。 6.take in 吸收Trees can take in harmful gases and produce oxygen.
Take out your smartphone.
The plane will take off soon.
树能吸收有害气体并产生氧气。拿出你的智能手机。飞机马上就要起飞了。带take的短语：
take out 拿出来；取出
take off 起飞；取消
take away 收走
take sb./sth. with (sb.) 随身带着(某人/某物)
For example,air is invisible.
He,for example,is a good student.
This report is incomplete; it does not include sales in France,for example.
The farm grows various kinds of crops,such as wheat,corn,cotton and rice. 7.for example 例如例如，空气是看不见的。例如,他就是个好学生。 这份报告是不完整的，例如在法国的销售情况就没包括进去。 这个农场种植各种各样的庄稼,例如麦子,玉米,棉花和稻米。 for example 和such as 的区别：
for example “例如”：+句子、段落, 一般只举同类人或物中的“一个”为例, 可位于句首、句中或句末。
such as “例如”：+单词、词组或动词ing，一般列举同类人或事物中的“几个”例子。插在被列举的事物与前面的名词之间,as后面不可有逗号。 8. look around 环顾四周；回头看I shouted and she looked around.
Look out! There is danger ahead.
They are looking for the lost boy. 我喊了一声，她回头看了一眼。当心!前面危险。他们在寻找那个丢了的男孩。 带look的短语：
look out 当心
look for 寻找
look after=take care of 照顾
look at 看
look up 查阅 The small bridge was made of stones.
Paper is made from wood.
Wine was made in France.
The smartphones were made by Chinese. 9. (be) made of 由......制成这座小桥是石头砌成的。纸是木头制成的。葡萄酒是在法国酿造的。这些智能手机是中国人做的。注意区别：
(be) made of 从成品中能看出原材料
(be) made from 从成品中看不出原材料
(be) made in sp. 在某地制造
(be) made by sb. 由某人制造根据中文意思完成句子。
1. 很多家具是木制的。
A lot of furniture _______ ________ _______ wood.
2. 葡萄酒是由葡萄制成的。
Wine ______ _______ _______ grapes.
3. 飞机模型是他做的。
The model car _______ ________ _______ him.
4. 口罩是在中国生产的。
The masks _______ ________ _______ China.is made fromis made ofQuizwas made bywere made in Every year, millions of tourists come
to visit Beijing.
The house costs two million yuan. 10. millions of 大量的；数以百万计的每年，数以百万计的游客来游览北京。这栋房子价值两百万元。 用法：
million 意为“百万”。
表示具体的数目时,用单数形式；表示不具体的数目时,用复数形式，且与of 连用，构成短语millions of，意为“大量的；数以百万计的”。
类似million用法的数词还有：hundred，thousand和billion。选用million或millions of填空。
1. There are ___________ books in the library.
2. There are over six ________ people in this city.millionmillions ofQuiz 11. (be）good for 对……有好处Eating more vegetables is good for
my health.
I'm good at playing sports.
I'm very good with my friends.
My friends were good to me when I was ill.多吃蔬菜对我的健康有好处。我擅长下做运动。我与朋友处得很好。我生病时我的朋友对我关怀备至。注意区别（后均可接名词、代词或ving形式）：
(be) good for sth. 意为 “对……有好处”；
(be) good at sth. / doing sth. 意为“擅长……”；
(be) good with sb. 意为“与……相处得好”；
(be) good to sb. 意为“对……友好；对......关心”。Practice makes perfect.
熟能生巧根据要求写出相应的单词或短语
1. discussion 讨论 _____________(v.)
2. branch _____________(名词复数)
3. product 产品_____________ (v.)
4. harm _____________ (adj.)
5. convenience 便利_________________(adj.)
6. imagination想象力 _____________(v.)
7. contain 容纳_________________(n.)
8. for 支持_____________(反义词)discussbranchesproduceharmfulconvenientimaginecontaineragainstb. in your mindb. makeb. bad for1. Harmful gases are ____ people's health.
a. good for
2. Trees produce oxygen. They ________ oxygen.
a. take
3. Air pollution is a major problem in the city. This problem is ____.
a. big and important
4. Washing machines make our lives more convenient. With the
help of them, our lives become ____.
a. easier
5. When you imagine a picture, you have it ____.
a. on paper
C1 The words in italics are from the article on page 45. Circle the correct answers to complete these sentences.bbaabb. not very importantb. richerC2 Complete the poster below with the words from the box. All about trees
Did you know trees(1)___________ oxygen?
Did you know trees help us fight (2)__________ pollution?
Did you know the (3)____________ in our classroom is made of wood?
produce againstfurnitureagainst convenient furniture major produce Did you know trees make our lives very(4)_______________?
If you want to know more about trees, join our “All about trees”
talk at 4 p.m. on 26 October (Tuesday). We will interview Dr Jones about the lives of trees and their(5)___________ uses.convenientmajor复习课堂笔记并完成练习与评价上的练习。
抄写，并背诵默写Unit 4的单词和短语。HomeworkTHANK YOU
