百分数与小数的互换PPT教学课件

3. Who gives Simon advice?
A senior employee, Mr Young. 4. In the photo, which person looks more friendly, the boy or the girl?
The girl (Debbie).
Read the story and complete the chart:
35 ＝ 35% 100
1.8 ＝1.8% 287 ＝287%
100
100
情景导入
小谁数能帮我们按从大百到分小数的顺序排列?
0.123
124%
你可以把它们变成同一类型的数吗？
小数 百分数 小数点向右移动两位,加上%
0.25 ＝ 25% 1.4 ＝ 140% 0.123 ＝ 12.3%
你发现了什么？
It’s the way you communicate.
• communicate with sb. 与某人沟通 • Parents should always
communicate with their children. • communication沟通，交流 n. • Speech is not the only method of
C Find the meaning
C1 1. d 2. f 3. a 4. c 5. e 6. b
C2 1. sighed 2. appearance 3. without hesitation 4. part-time 5. gestures 6. speech
D Read and think
Mum?
around world?
angry surprised
sad
disappointed
Why can’t I find a good job?
• disappointed adj. • be disappointed at sth. • Jay was disappointed at the bad news.
one
gesture 手势，姿势 n.
Fra Baidu bibliotekOK
bad
gesture 手势，姿势 n.
Be quiet!
Come here.
expression 表情，神态 shocked thoughtful
expression 表情，神态 tired excite
Where’s my I won a tour It’s unfair!
Speech is not the only way we
communicate. • 语言并不是我们唯一的沟通方式.
It’s the way you stand and sit. •它是你站立和坐姿的方式。 定语从句
What kind of language is that?
• 那是一种怎样的语言? • What kind/sort of…?什么类型…？
• People in France greet friends with kissing instead of shaking
sigh 叹气 v. / n.
‘How can I lose my weight?’,he sighed.
Miss Cat left with a sigh.
Poor guy!
communication. • 语言并不是唯一的沟通方式．
I don’t even get a chance to speak to them.
• 我甚至没有和他们说话的机会．
• get a chance有机会 • take a chance
• 冒一冒险, 碰碰运气,
• by chance偶然, 意外地 • I met an old friend by chance.
Look at the photo and skim the story to find out:
1. What is the main topic of the story?
Body language.
2. Where are Debbie and Simon?
They are at work, in the office of a travel agency.
2 What are the two ways of communication in the story?
Speech and body language.
3 What is body language, according to Mr Young?
It’s the way someone stands and sits. It’s gestures and the expression on someone’s face and in his or her eyes.
rest head on hand,
Simon look downwards,
never smile,
look unfriendly, make others go away
well-dressed 穿着讲究的adj. • People are well-dressed at
the wedding.
a senior employee 一位级别较高的职员
• senior: holding a higher position
• employee: a person who is paid to work for other people What’s up, Simon? • What’s up?
• She agreed without hesitation.
• 她毫不犹豫地同意了．
• hesitate犹豫 v.
• Don’t hesitate to tell us if you have a problem.
She wanted to remind me that tomorrow is her birthday.
name Body language
outcome
sit up and hold head up, look friendly, Debbie make eye contact with make others
the customers, always feel welcome smile, greet cheerfully
把相等的数用线连起来：
0.25
130%
72%
0.176
0.415
25%
106%
0.72
1.3
1.06
17.6%
41.5%
判断，对的打“√”，错的打“×”。
1、1.041= 1041% （×）
2、2%= 0.02 3、100%= 1 4、300%= 0.3 5、0.8%= 0.08
（√ ） （√ ） （×） （×）
He does not make a good impression on people.
make a good imopression on sb. 给某人留下好印象
• He rests his head on his hand.
• rest 被支撑，托v.
• He doesn’t look up.
Simon
make eye contact with 与某人眼神交流
Debbie
• She is holding her head up.
• She smiles.
• She makes eye contact with the customers.
make eye contact with 与某人眼神交流
It is important to make eye contact with your teamplayers when playing basketball.
Without hesitation, she went to Simon and gave him a big smile.
• hesitation 犹豫 n.
enter 进入,登台 v.
• Don’t enter the office without knocking.
exit 退出,退场 v. 出口 n.
• exit visa出境签证 fire exit安全出
口
entrance 入口 n.
glance at 匆匆一看
• 浏览报纸
• glance at the newspapers greet 和某人打招呼，迎接v. greeting 问候，欢迎n.
• = What’s the matter?
The customers always • prefperreAfer(tDoeBb)bie选to择mＡe(.而不选择
Ｂ) • 你想喝什么，茶还是咖啡？ • Which would you prefer, tea or
coffee? • 我想喝茶，不想喝咖啡． • I prefer tea to coffee. • 她愿意步行，不愿意骑车．
• What kind/sort of shoes would
you like?
You whole appearance communicates things.
• 你的整体外貌都能传达信息． • appearance外观，外貌．出现n. • Don’t judge by appearances. • 切勿以貌取人． • appear 出现 v. • He didn’t appear until 9pm. • 直到９点他才出现．
解决问题: 你能把下面的小数化成百分数吗？
0.38 ＝ 38% 1.05 ＝ 105%
0.055＝ 5.5% 3 ＝ 300%
百分数 去掉% ,小数点向左移动两位 小数
27% ＝ 0.27 124% ＝ 1.24 0.4% ＝ 0.004
你发现了什么？
解决问题: 1.把下面各个百分数化成小数.
热身运动: 你能把下面的小数化成分数吗？
0.1＝ 1
10
0.731
＝ 731
1000
0.23 ＝ 23
100
1.99
＝
1 99 100
你能把下面的分数化成小数吗？
7 10
＝
0.7
51 100
＝0.51
374 1000
＝0.374
1 3 ＝ 1.3
10
3.把下面的分数化为百分数.
7 100
＝
7%
Ways of communicating
Spoken
speaking
language
ringing
Written language
writing typing
Body
gesturing
language
gesture 手势，姿势 n.
thumbs up
good job / the number
• remind 提醒 v.
• Do I have to remind you again? • 需要我再次提醒你吗？
• remind sb of sth.提醒某人某事
• This song reminds me of my hometown. • 这首让我想起了我的家乡．
• reminder提示信，通知信 n.
15%＝0.15 80% ＝ 0.8
3.5% ＝0.035 135%＝ 1.35
从大到小排列：
0.123
0.25
124%
27%
0.4%
小数点向右移动两位,加上%
小数
百分数
去掉% ,小数点向左移动两位
比较大小:
0.52 ＝ 52% 254% ＞ 0.254
1.2 ＞ 12.3% 0.25% ＜ 0.025
g Mr Young said that Simon looked dwon and never
smiled. 5
D2 Read the story again and answer the following questions. 1 Why was Simon unhappy?
The customers always prefer Debbie to him.
a Mr Young said that body language is important. 4 b The lady walked over to Debbie instead of Simon2. c Simon began to sit up and smile. 6 d A well-dressed lady entyered the travel agency. 1 e Simon’s sister came to remind hm of her birthday.7 f SImon sighed. 3