牛津上海版(深圳)英语六年级上册Unit 10《Air》(第二课时)公开课课件
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六年级上册英语：Unit 10《Air》(第二课时)
jump 跳
page geography jacket join
g
j
/dʒ/
/dʒ/舌尖和舌端抬起贴住上齿龈后部，憋住气，舌尖稍稍下降，气流从 舌和齿龈间的狭缝冲出，发音时声带需震动
标出单词出现的顺序
orange
job
8 2
1
juice
3
7 jam age
6
5
4
usually 经常地
How do you usually go to school？ I usually go to school on foot.
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S2：We should plant trees.
还有哪些废气污染？
我们应该怎么做才能保 证空气的清洁？
Think and write
Help Ben and Kitty complete the letter.
people animals plants
cars buses factories plant more trees keep our city clean
1.job shop 3.choose juice 5.chair hair
2.cheap jeep 4.skirt shirt 6.giraffe usually
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选出最佳答案
1.You look tired，_________ A. what's matter？ B. what's the matter ？
牛津深圳版 Unit 10 Air Section B
Words review
工厂__f_a_c_to_r_y___ 脏的___d_i_rt_y____ 感到疼___h_u_r_t____ plant___种__植_____
page geography jacket join
g
j
/dʒ/
/dʒ/舌尖和舌端抬起贴住上齿龈后部，憋住气，舌尖稍稍下降，气流从 舌和齿龈间的狭缝冲出，发音时声带需震动
标出单词出现的顺序
orange
job
8 2
1
juice
3
7 jam age
6
5
4
usually 经常地
How do you usually go to school？ I usually go to school on foot.
21世纪教育网
S2：We should plant trees.
还有哪些废气污染？
我们应该怎么做才能保 证空气的清洁？
Think and write
Help Ben and Kitty complete the letter.
people animals plants
cars buses factories plant more trees keep our city clean
1.job shop 3.choose juice 5.chair hair
2.cheap jeep 4.skirt shirt 6.giraffe usually
21世纪教育网
选出最佳答案
1.You look tired，_________ A. what's matter？ B. what's the matter ？
牛津深圳版 Unit 10 Air Section B
Words review
工厂__f_a_c_to_r_y___ 脏的___d_i_rt_y____ 感到疼___h_u_r_t____ plant___种__植_____
牛津深圳英语六上《10 Air》[鲍老师]【市一等奖】优质课
![牛津深圳英语六上《10 Air》[鲍老师]【市一等奖】优质课](https://img.taocdn.com/s3/m/873cffe576a20029bd642df0.png)
1 六年级上册第十单元Air 教学设计课题：上海牛津版六年级上册第十单元Air 设计人/单位：深圳市莲南小学鲍兰一、学情分析六年级的学生已经具备了一定程度的自主学习能力和一定的英语语用能力。
在日常的交际情境中，能够就熟悉的话题，在日常交际情景中听懂对话、交流信息，能够阅读150字左右中等长度语篇，也具备主创编写作能力。
在知识储备方面，五年级上册Module 4 The natural world中wind、water、fire等相关话题为本单元的话题提供了较为扎实的知识储备；在日常的生活，空气的重要性&空气污染等话题上也积累了较为丰富的背景知识。
此年龄段的孩子思维活跃，具有一定的审辨思维能力，乐于根据自身观点进行创编。
以上的知识储备和技能积累都为本单元的学习打下了基础。
学生已知：1. 词汇：（1）名词：colour, shape, smell, taste等。
（2）动词：see, feel, fly, need, keep, take, tie, bring, throw up等。
（3）形容词&副词：important, high, slowly等。
2. 句型：（1）It has …. （2）It is important to... （3）Why is it important? （4）Where does it come from? （5）We should… 3. 相关话题：5A Unit10 Wind(学习了风的状态及事物的相应变化）5A Unit 11 Water(学习了水的来源及用途）5A Unit 11 Fire(学习了火的用途以及危害）二、教材分析本单元Air是在Module 4 The natural world模块中一个重要组成部分。
该话题聚集了air的特征及作用、空气污染的严重性、改善空气污染的措施是与孩子们的日常息息相关的内容。
从话题内容来看，本单元是对五年级所学大自然元素内容的拓展与延伸，培养了学生综合运用语言的能力。
Unit 10 Air 课件 2-优质课-公开课(上教三起六上精品)
Look at the kite and the balloon. Look at the plane and the bird. They all need it too. It keeps them high in the sky.
1. Listen to and read Student’s Book pages 68 and 72. 2. Recite the riddle in “Listen and say” on Student’s Book page 68. 3. Make a toy parachute. 4. Finish Workbook pages 56 and 58.
When we breathe it,
It keeps us alive.
Does air have taste or smell?
No.
How does a balloon lift people up?
It uses hot air.
How do kites and planes stay in the sky?
0
Module 4 The natural world
Unit 10 Air
This is our home.
We live on Earth. Therபைடு நூலகம் are many natural elements around us. We cannot live without them. They are everywhere around us.
smell or _______. taste It has no _______
We cannot ____ see it, but we can ____ feel it.
1. Listen to and read Student’s Book pages 68 and 72. 2. Recite the riddle in “Listen and say” on Student’s Book page 68. 3. Make a toy parachute. 4. Finish Workbook pages 56 and 58.
When we breathe it,
It keeps us alive.
Does air have taste or smell?
No.
How does a balloon lift people up?
It uses hot air.
How do kites and planes stay in the sky?
0
Module 4 The natural world
Unit 10 Air
This is our home.
We live on Earth. Therபைடு நூலகம் are many natural elements around us. We cannot live without them. They are everywhere around us.
smell or _______. taste It has no _______
We cannot ____ see it, but we can ____ feel it.
沪教版三年级起点小学六年级英语上册Unit 10 Air-Period 2_课件1
cars
பைடு நூலகம்
>>Summary
本课所学重点单词有哪些？ factory, dirty, clean, smoke 本课所学重点句型有哪些？ It makes the air dirty. Trees keep the air clean.
>>Homework
1.观看课文动画，按照正确的语音、语调朗
读课文对话。 2.利用本课所学知识，谈一谈你身边的空气 污染状况。 3.预习。
>>Presentation Read and answer How is the air in the park? Why? The air is fresh because there are a lot of trees in the park. What should we do to keep the air clean? We should plant more trees to keep the air clean.
>>Presentation Read and answer
How is the air in the street?
It’s dirty.
How is the air in the park? It’s clean.
>>Presentation Look and learn
dirty
clean
>>Practice
Look and say
How is the air in the factory?
It’s dirty.
It’s clean.
>>Presentation Read and answer What makes the air dirty?
牛津沪教版六上英语课件Unit 10 Air课件-附教案
It is air! Air keeps the kite high in
the sky.
Look and say
Trees keep the air clean.
Flowers keep the air clean.
Grass keep the air clean.
The smoke from buses makes the air dirty.
chair China each
g
age orange danger
j
juice jam jump
sh
share shirt fish
s
usually pleasure
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小学英语·六年级上册·牛津版
教师：文小语 时间：October 28, 2020
01 l e a d - i n 02 P r e s e n t a t i o n 03 P r a c t i c e 04 E x e r c i s e
Think and guess
It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it. It keeps the kite high in the sky. It is everywhere. What is it?
The smoke from factories makes the air dirty.
最新六年级英语上册Unit10Air牛津上海版优选教学课件
用所给词的适当形式填空。 1. D__o_e_s__(do) it have any colour or taste ? 2. Bring the four p_i_e_c_e_s_(piece) of string together. 3. The toy moves _s_lo_w__ly_(slow) in the air.
单选。
1. It keeps them _____in the sky.
A. tall
B. high
C. short
2. What’s the _______?
A. matter B. wrong C. up
3. The air is _____ in the forest.
A. dirty B. bad
C. fresh
4. My mother is a worker. She works in a ___.
A. factory B. boot
C. company
5. Trees ______ the air clean.
A. cool
B. keep
C. feel
6. ----where is the _________from ?
Kitty: It’s from the cars and buses.
Ben: Look at the black smoke from the factory.
It makes the air dirty.
Kitty: Let’s go to the park, Ben. The air is clean there.
__a_n_im__a_ls__alive. The air in our city w__a_s_clean, but now it is dirty. _S_m__o_k_efrom cars, bus and factories makes it _d_ir_t_y___. We should plant more trees. Let’s keep the air clean.
上海沪教牛津版英语六年级上册Unit 10 Air 课件
1、Are those books for them?(they/them) 2、Mike is Mary's deskmate. He(He/Him) is sitting next to
her (she/her). 3、-Mary, please open the windows.
-Ok, Mum. I (I/Me) am opening them (they/them) now. 4、Dad, can you let us (we/us) watch TV for a while(一会
It keeps them high in the sky? 意为“它使它们在天空中保持高高的。”使某人/ 某物保持怎么样的句型公式为：
She keeps the room clean. 她使这间屋子保持干净。
It keeps the little dog quiet. 它使这只小狗保持安静。
……………………………………………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………………………………………………
feel与其他表示动作的单词一样，属于动词，但是它也有与众不同之处。它可以跟形 容词做朋友。一起来看看吧。
I feel hot in this sweater. 穿这件毛衣我感觉热。
6
……………………………………………………………………………………… ………………………………………………………………………………………
……………………………………………………………………………………………………………………………………………………………………
her (she/her). 3、-Mary, please open the windows.
-Ok, Mum. I (I/Me) am opening them (they/them) now. 4、Dad, can you let us (we/us) watch TV for a while(一会
It keeps them high in the sky? 意为“它使它们在天空中保持高高的。”使某人/ 某物保持怎么样的句型公式为：
She keeps the room clean. 她使这间屋子保持干净。
It keeps the little dog quiet. 它使这只小狗保持安静。
……………………………………………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………………………………………………
feel与其他表示动作的单词一样，属于动词，但是它也有与众不同之处。它可以跟形 容词做朋友。一起来看看吧。
I feel hot in this sweater. 穿这件毛衣我感觉热。
6
……………………………………………………………………………………… ………………………………………………………………………………………
……………………………………………………………………………………………………………………………………………………………………
沪教版六年级上学期英语Unit 10 Air 课件
gently / heavily.
4. There is air / water in the parachute.
Look at the pictures. Talk about them with your classmates.
S1: What makes the air dirty? S2: The smoke from … makes
the air dirty. S1: What should we do to keep
the air clean? S2: We should …
Dear friends,
Air is important. It keeps_p__e_o_p_l_e_,_a_n__im__a_l_sand _p_l_a_n_t_s_ alive.
Let’s keep the air clean!
Ben and Kitty
We have only one Earth! We must keep it clean!
Listen and enjoy.wmv
Listen and circle.wav
1. Listen and read. 2. Write a short article about air. 3. Finish the exercise book.
Module 4 The natural world
Unit 10 Air
Period three
1 能听、说、读、写本课时的核心词汇： smoke, factory, dirty, clean, fresh, plant
2 能熟练掌握核心句型： We should plant more trees and keep the air clean.
4. There is air / water in the parachute.
Look at the pictures. Talk about them with your classmates.
S1: What makes the air dirty? S2: The smoke from … makes
the air dirty. S1: What should we do to keep
the air clean? S2: We should …
Dear friends,
Air is important. It keeps_p__e_o_p_l_e_,_a_n__im__a_l_sand _p_l_a_n_t_s_ alive.
Let’s keep the air clean!
Ben and Kitty
We have only one Earth! We must keep it clean!
Listen and enjoy.wmv
Listen and circle.wav
1. Listen and read. 2. Write a short article about air. 3. Finish the exercise book.
Module 4 The natural world
Unit 10 Air
Period three
1 能听、说、读、写本课时的核心词汇： smoke, factory, dirty, clean, fresh, plant
2 能熟练掌握核心句型： We should plant more trees and keep the air clean.
牛津上海(深圳)版2018-2019学年六年级英语上册 Unit 10《Air》(Period 1)公开课课件
They all need it too. high in the sky. It keeps them _____
It keeps them high in the sky.
It is air.
It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it.
natural elements
What do you know about air?
Air is … Air has … We need air to … We can … with air.
Air has no smell. Air has no
taste. Air has no colour. Air has no shape. When the wind blows, we can
feel it.
We need air to breathe.
Does air have taste or smell?
No.
How does a balloon lift people up?
Ites stay in the sky?
We all need it to keep us ali
everywhere It is __________.
people It is important to all ______. plants It is also important to animals ______ and _____. alive We all need it to keep us _____.
They ride on air.
It keeps them high in the sky.
It is air.
It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it.
natural elements
What do you know about air?
Air is … Air has … We need air to … We can … with air.
Air has no smell. Air has no
taste. Air has no colour. Air has no shape. When the wind blows, we can
feel it.
We need air to breathe.
Does air have taste or smell?
No.
How does a balloon lift people up?
Ites stay in the sky?
We all need it to keep us ali
everywhere It is __________.
people It is important to all ______. plants It is also important to animals ______ and _____. alive We all need it to keep us _____.
They ride on air.
六年级上册英语课件《10 Air》牛津上海版(三起) (共18张)
Look at the kite and the balloon. Look at the plane and the bird. They all need it too. It keeps them high in the sky. What is it?
It has no _c_o_l_o_u_ror __s_h__a_p_e. It has no _s_m__e_l_l_ or ___t_a_s_t_e. We cannot s_e_e__ it, but we canfe__e_l_ it.
T:What do you know about air?
.
S1:Air has no smell. S2:Air has no taste. S3:Air has no colour. S4:Air has no shape. S5:... T : When the wind blows, we can feel it.
What is air?
no colour shape smell taste cannot see can fell everywhere
LIIittstiiess nailmaspnoorditmaspnotaryttaontaltlopeople.
animals and plants. We all need it to keep us alive.
Listen and say
It keeps them high in the sky.
Listen and say
It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it. It is everywhere.
It has no _c_o_l_o_u_ror __s_h__a_p_e. It has no _s_m__e_l_l_ or ___t_a_s_t_e. We cannot s_e_e__ it, but we canfe__e_l_ it.
T:What do you know about air?
.
S1:Air has no smell. S2:Air has no taste. S3:Air has no colour. S4:Air has no shape. S5:... T : When the wind blows, we can feel it.
What is air?
no colour shape smell taste cannot see can fell everywhere
LIIittstiiess nailmaspnoorditmaspnotaryttaontaltlopeople.
animals and plants. We all need it to keep us alive.
Listen and say
It keeps them high in the sky.
Listen and say
It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it. It is everywhere.
牛津上海版(三起)六年级上册英语 Module 4 Unit 10 Air精品课件
air pollution
We should…
plant more trees save the energy resources
go to school on foot/ by bike/ by bus…
We shouldn’t…
cut the trees
set off fireworks
burn the rubbish
Homework
Water is... Water has... We can/cannot...water.
We should... We shouldn't...
five senses
suggestions
water
We use water to... Water can...
usage
importance
have the BBQ party
waste paper
Work in groups
Air
Air has___________________. We live in the air, it is _______.
Air is important to ______ ，______ and
_______. It keeps them_______. We need fresh and clean air , so we should _________________________________ _________________________________ and we shouldn’t ___________________ _______________________________
It is important to all people. It is also important to animals and plants. We all need it to keep us alive.
【上海教育版】六年级英语上册：Unit 10《Air》(Period 2)ppt课件
API and Health Implications (Daily Targets) API Air Pollution Level：
0 - 50Excellent 51 -100 Good 101-150 Slightly Polluted 151-200 Lightly Polluted 201-250 Moderately Polluted 251-300 Heavily Polluted 300+ Severely Polluted
The air is dirty in some places. We call this air pollution.
Air pollution is harmful!
1 It’s harmful to the health of people 2 It’s harmful to the nature. 3 Air pollution spreads easily. 4 Air pollution is a global problem. 5 People should stop using coal.
Air pollution
Air keeps us alive. We get sick if the air is too dirty.
What’s the matter with Kitty? Her eyes yes?
It’s the smoke. Where is the smoke from? It’s from cars, buses and the factory.
1. Listen to and read Student’s Book page 70. 2. Read, copy and spell the words: factory, factories, smoke, dirty, clean 3. Think about how to keep the air clean. 4. Finish Workbook pages 57 and 59.
2018年牛津上海(深圳)版英语六年级上册 Unit 10《Air》(Period 2)公开课课件
The air is so fresh here. Yes. There are a lot of trees in the park. Trees keep the air clean. We should plant more trees and keep the air clean. Yes! We should keep our city clean.
everywhere Air is __________.
people It is important to all ______. plants It is also important to animals ______ and _____. alive We all need it to keep us ____.
How is the air?
How is the air in the picture?
It’s dirty.
How is the air in the picture?
How is the air in the factory?
It’s dirty.
How is the air in the factory? It’s clean.
kite and the balloon Look at the _____ ______. plane and the _____. bird Look at the _____
They all need it too.
high in the sky. It keeps th or shape. It has no smell or taste. We cannot see it, but we can feel it. It is everywhere. It is important to all people. It is also important to animals and plants. We all need it to keep us alive. Look at the kite and the balloon. Look at the plane and the bird. They all need it too. It keeps them high in the sky.
沪教牛津版小学六年级英语上册Unit 10 Air第二课时课件
What makes the air dirty?
We should plant more trees.
What should we do to keep the air clean?
Exercises
一、单项选择。
( B )1.Where is the smoke _________?
A. in
沪教牛津版英语六年级上册
Module 4 The natural world
Unit 10 Air
Warm up Look and say
第二课时 How is the air?
It’s dirty.
Where does air pollution come from?
The factories.
Ben: Look at the black smoke from the factory. It makes the air dirty. Kitty: Let’s go to the park, Ben. The air is clean there. Ben: OK.
2
Kitty: The air is so fresh here. Ben: Yes. There are a lot of trees in the park. Trees keep the air clean. Kitty: We should plant more trees and keep the air clean. Ben: Yes! We should keep our city clean.
I’m so tired.
I’m tall and strong, so I can run fast.
Complete the notes.
沪教牛津版小学英语三起点六年级上册M-4 Unit10 Air Period 2ppt课件
The air is dirty in some places. We call this air pollution.
Air pollution is harmful!
1 It’s harmful to the health of people 2 It’s harmful to the nature. 3 Air pollution spreads easily. 4 Air pollution is a global problem. 5 People should stop using coal.
Air is _e_v_e_ry_w_h_e_r_e_. It is important to all _p_e_o_p_le_. It is also important to a_n_i_m_a_l_s and _p_la_n_ts_. We all need it to keep us _a_li_ve_.
The air is so fresh here. Yes. There are a lot of trees in the park. Trees keep the air clean. We should plant more trees and keep the air clean. Yes! We should keep our city clean.
Look at the _k_i_te__ and the b_a_l_lo_o_n_. Look at the _p_la_n_e_ and the _b_i_rd__. They all need it too. It keeps them _h_i_g_h_ in the sky.
It has no colour or shape. It has no smell or taste. We cannot see it, but we can feel it.
Unit 10 Air 第二课时 课件ppt(27张PPT）导学案
Lead -in
1. Where is Kitty and Ben in the two pictures? 2. What’s the air like in the two pictures?
Let’s learn
Watch and enjoy.
Click here
Let’s learn
Answer these questions after your watching.
Let’s learn
Language points
It makes the air dirty. 它使空气变脏。 make sb./sth. + adj. 意思是使（让）某人/某物 …… 此时用法与keep sb./sth. + adj. 相似
如：The good news makes me happy. 这个好消息让我很高兴。 We should keep our city clean. 我们应该保持城市干净。
Let’s review
What is air?
I’m air. I’m _e_v_e_r_yw_h_e_r_e_. I’m important to all _p_e_o_p_le_. I’m also important to _a_n_im_a_l_s and _pl_a_n_ts_. They all need me to keep them _a_li_v_e_.
It makes the air dirty. Kitty: Let’s go to the park, Ben. The air is clean there. Ben: OK.
Let’s learn
Listen and read.
Kitty: The air is so fresh here. 清新的 Ben: Yes! We should keep our city clean.
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21世纪教育网
还有哪些废气污染？
我们应该怎么做才能保 证空气的清洁？
Think and write
Help Ben and Kitty complete the letter.
people animals cars buses factories plant more trees keep our city clean plants
Complete the notes. cars
buse s
factory dirty clean
fresh trees clean
Ask and answer
Look at the pictures.Talk about them with your classmates.
21世纪教育网
S1：What makes the air dirty？ S2：The smoke from the car makes the air dirty. S1：What should we do to keep the air clean？ S2：We should ride a bike.
牛津深圳版 Unit 10 Air Section B
Words review
factory 工厂__________ smoke__________ 烟
dirty 脏的__________
hurt 感到疼__________ plant__________ 种植
clean__________ 干净的
例如： （1）—你怎么啦？—我丢了书包。 —What's the matter with you? —I lost my schoolbag. （2）你看起来不高兴，怎么啦？ What's the matter？You seem unhappy.
make
make 制作，使
make sth+形容词
使某物.......
fresh__________ 新鲜的 plant trees 植树__________
Learning aims
1.了解课文Say and act. 2.掌握重点知识点：What's the matter，make. 3.重点句型： What makes the air dirty？ The smoke from ...makes the air dirty. What should we do to keep the air clean？ We should........ 3.字母ch，g，j，sh，s在单词中的发音。
chance change much
ch
/tʃ/
/tʃ/平舌尖和舌端抬起贴住上齿龈后部，憋住气，然后舌尖稍稍下降， 气流从舌和齿龈间的狭缝中冲出，摩擦成音。发音时声带不震动。 /tʃ/这个音和汉语拼音中的声母ch很相近，很多北方同学会用"吃"代替 /tʃ/是不正确的。
share 分享
We should know how to share.
S1：What makes the air dirty？ S2：The smoke from the bus makes the air dirty. S1：What should we do to keep the air clean？ S2：We should walk.
S1：What makes the air dirty？ S2：The smoke from the factory makes the air dirty. S1：What should we do to keep the air clean？ S2：We should plant trees.
Pronounce
What´s this？
It is a chair. chair 椅子
Where are you from？
I am from China.
21世纪教育网
China
中国
They are poor.
She is rich. rich 富裕的
each 每个
We should help each other.
例如： （1）我昨晚做了一个蛋糕。 I made a cake last night. （2）来自汽车的烟使空气脏。 The smoke from the car makes the air dirty.
课堂练习
英汉互译。 （1）你看起来很累，怎么啦？ You look very tired，what's the matter？ （2）You look sad，what's the matter？ 你看起来很伤心，怎么啦？ （3）She made the card by hand. 她手工制作了这张卡片。 （4）来自工厂的废气使空气变脏。 The waste gas from the factory makes the air dirty. （5）他制作了一个漂亮的卡片。 He made a beautiful card.
Warm-up
Free talk
1.空气污染的危害有哪些？
2.你还知道哪些行为会污染空气?
21世纪教育网
Presentation
What makes the air dirty？
Useful expression what's the matter
what's the matter 怎么啦？怎么回事？
Ask and answer
（1）What's the matter with Kitty？ Her eyes hurt. （2）Where is the smoke from？ It is from the cars and buses. （3）What makes the air dirty？ The black smoke from the factory makes the air dirty. （4）How is the air in the park? The air in the park is clean. （5）What should we do to make the air clean？ We should plant more trees.
还有哪些废气污染？
我们应该怎么做才能保 证空气的清洁？
Think and write
Help Ben and Kitty complete the letter.
people animals cars buses factories plant more trees keep our city clean plants
Complete the notes. cars
buse s
factory dirty clean
fresh trees clean
Ask and answer
Look at the pictures.Talk about them with your classmates.
21世纪教育网
S1：What makes the air dirty？ S2：The smoke from the car makes the air dirty. S1：What should we do to keep the air clean？ S2：We should ride a bike.
牛津深圳版 Unit 10 Air Section B
Words review
factory 工厂__________ smoke__________ 烟
dirty 脏的__________
hurt 感到疼__________ plant__________ 种植
clean__________ 干净的
例如： （1）—你怎么啦？—我丢了书包。 —What's the matter with you? —I lost my schoolbag. （2）你看起来不高兴，怎么啦？ What's the matter？You seem unhappy.
make
make 制作，使
make sth+形容词
使某物.......
fresh__________ 新鲜的 plant trees 植树__________
Learning aims
1.了解课文Say and act. 2.掌握重点知识点：What's the matter，make. 3.重点句型： What makes the air dirty？ The smoke from ...makes the air dirty. What should we do to keep the air clean？ We should........ 3.字母ch，g，j，sh，s在单词中的发音。
chance change much
ch
/tʃ/
/tʃ/平舌尖和舌端抬起贴住上齿龈后部，憋住气，然后舌尖稍稍下降， 气流从舌和齿龈间的狭缝中冲出，摩擦成音。发音时声带不震动。 /tʃ/这个音和汉语拼音中的声母ch很相近，很多北方同学会用"吃"代替 /tʃ/是不正确的。
share 分享
We should know how to share.
S1：What makes the air dirty？ S2：The smoke from the bus makes the air dirty. S1：What should we do to keep the air clean？ S2：We should walk.
S1：What makes the air dirty？ S2：The smoke from the factory makes the air dirty. S1：What should we do to keep the air clean？ S2：We should plant trees.
Pronounce
What´s this？
It is a chair. chair 椅子
Where are you from？
I am from China.
21世纪教育网
China
中国
They are poor.
She is rich. rich 富裕的
each 每个
We should help each other.
例如： （1）我昨晚做了一个蛋糕。 I made a cake last night. （2）来自汽车的烟使空气脏。 The smoke from the car makes the air dirty.
课堂练习
英汉互译。 （1）你看起来很累，怎么啦？ You look very tired，what's the matter？ （2）You look sad，what's the matter？ 你看起来很伤心，怎么啦？ （3）She made the card by hand. 她手工制作了这张卡片。 （4）来自工厂的废气使空气变脏。 The waste gas from the factory makes the air dirty. （5）他制作了一个漂亮的卡片。 He made a beautiful card.
Warm-up
Free talk
1.空气污染的危害有哪些？
2.你还知道哪些行为会污染空气?
21世纪教育网
Presentation
What makes the air dirty？
Useful expression what's the matter
what's the matter 怎么啦？怎么回事？
Ask and answer
（1）What's the matter with Kitty？ Her eyes hurt. （2）Where is the smoke from？ It is from the cars and buses. （3）What makes the air dirty？ The black smoke from the factory makes the air dirty. （4）How is the air in the park? The air in the park is clean. （5）What should we do to make the air clean？ We should plant more trees.