百分数与小数的互换教学课件

1、百分数与小数的互换热身运动:你能把下面的小数化成分数吗？ 0.731 1.990.1 0.23你能把下面的分数化成小数吗？0.70.510.3741.33.把下面的分数化为百分数.7%35%1.8%287%27%124%0.4%23 谁能帮我们按从大到小的顺序排列?小数百分数你可以把它们变成同一类型的数吗？情景导入小数百分数 小数点向右移动两位,加上%0.250.1231.425%12.3%140%你发现了什么？解决问题:你能把下面的小数化成百分数吗？0.38 1.0538%300%5.5%105%0.055 3小数百分数 27%124%0.4%0.271.240.004你

2、发现了什么？去掉% ,小数点向左移动两位解决问题:1.把下面各个百分数化成小数.15% 80%3.5% 135%0.150.0350.81.3527%124%0.4%23从大到小排列：小数百分数小数点向右移动两位,加上%去掉% ,小数点向左移动两位比较大小:0.52 52% 1.2 12.3%254% 0.254 0.25% 0.025把相等的数用线连起来：0.2572%0.415106%1.317.6%130%0.17625%0.721.0641.5%判断，对的打“”，错的打“”。1、1.041= 1041% （ ）2、2%= 0.02 （ ）3、100%= 1 （ ）4

3、、300%= 0.3 （ ）5、0.8%= 0.08 （ ）欢迎指教Chapter1 Body language speakingringingwritingtypingSpoken languageWritten languageBody languageWays of communicating gesturing Body language: gestures & expression gesture 手势，姿势n.body language:gesture & expression thumbs upgood job / the number one gesture 手势，姿势n.OK

4、bad gesture 手势，姿势n.Come here.Be quiet! expression 表情，神态shockedthoughtful expression 表情，神态 excited tiredsurprisedBody language shows different feelings. angry sadIts unfair!Wheres myMum?I won a tour around world? disappointed adj. be disappointed at sth.Jay was disappointed at the bad news.disappoint

5、edWhy cant I find a good job?Look at the photo and skim the story to find out: 1. What is the main topic of the story? 2. Where are Debbie and Simon? Body language.They are at work, in the office of a travel agency.3. Who gives Simon advice? 4. In the photo, which person looks more friendly, the boy

6、 or the girl?A senior employee, Mr Young.The girl (Debbie). Read the story and complete the chart:nameBody language outcomeDebbieSimonsit up and hold head up, make eye contact with the customers, always smile, greet cheerfully look friendly, make others feel welcome rest head on hand, look downwards

7、, never smile, look unfriendly, make others go away well-dressed 穿着讲究的adj.People are well-dressed at the wedding. enter 进入,登台 v.Dont enter the office without knocking.exit 退出,退场 v.出口 n. entrance 入口 n.exit visa出境签证 fire exit安全出口 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

8、候，欢迎n.People in France greet friends with kissing instead of shaking hands. sigh 叹气 v. / n.How can I lose my weight?,he sighed.Miss Cat left with a sigh.Poor guy! Whats up, Simon?Whats up?= Whats the matter? a senior employee一位级别较高的职员 senior: holding a higher position employee: a person who is paid

9、to work for other people prefer A (to B)选择(而不选择)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She prefers walking to cycling.The customers always prefer Debbie to me.Its the way you communicate. communicate with sb. 与某人沟通Parents should always communica

10、te with their children. communication沟通，交流 n.Speech is not the only method of communication. 语言并不是唯一的沟通方式I dont 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.Speech is not the only way we communicate.语言并不是我们唯一的沟通方

11、式.Its the way you stand and sit.定语从句它是你站立和坐姿的方式。那是一种怎样的语言?What kind/sort of?什么类型？What kind/sort of shoes would you like?What kind of language is that?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.Dont judge by appearances.切勿以貌取人 appear出现 v.He didnt appear until 9pm.直到点他才出现H

12、e rests his head on his hand.rest 被支撑，托v.He doesnt look up.He never smiles.Simon He does not make a good impression on people. make a good imopression on sb. 给某人留下好印象 make eye contact with 与某人眼神交流She is holding her head up.She smiles.She makes eye contact with the customers.Debbie It is important to

13、 make eye contact with your teamplayers when playing basketball. make eye contact with 与某人眼神交流Without hesitation, she went to Simon and gave him a big smile. hesitation 犹豫 n.She agreed without hesitation.她毫不犹豫地同意了 hesitate犹豫 v.Dont hesitate to tell us if you have a problem.你有问题就直截了当地告诉我们。She wanted

14、to remind me that tomorrow is her birthday. 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.C Find the meaning1. d2. f3. a4. c5. e6. bC1C21. sighed2. appearance3. without hesitation4. part-time5. gestures6.

15、 speechD Read and thinka Mr Young said that body language is important.b The lady walked over to Debbie instead of Simon.c Simon began to sit up and smile.d A well-dressed lady entyered the travel agency.e Simons sister came to remind hm of her birthday.f SImon sighed.g Mr Young said that Simon look

16、ed dwon and never smiled.4261735D2 Read the story again and answer the following questions.1 Why was Simon unhappy?2 What are the two ways of communication inthe story?The customers always prefer Debbie to him.Speech and body language.3 What is body language, according to Mr Young?4 Why did the cust

17、omers not go to Simon? Its the way someone stands and sits. Its gestures and the expression on someonesface and in his or her eyes.He didnt make a good impression on the customers.5. Did Mr Young think Debbie had good bodylanguage? Why?6. Did Simon take Mr Youngs advice? What did he decide to do?No.

18、 Because he often rest his head on hishand. He doesnt look up. He never smiles. Yes, he did. He decided to improve his body language.1. Sarah glanced at the news and said nothing.Sarah quickly read the news and said nothing.2. The picture reminded me of my childhood.The picture helped me remember my childhood.Paraphrase these sentences3. She agreed to go with us without hesitation.She agreed to go with us at once.4. An air-hostess should make eye contact with passengers when they ask for help.An air-hostess should look directly at passengers when they ask for help.5. He