英语版ppt课件
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英语-完整版PPT课件
5．dignity n．尊严；高贵的品质 [搭配] stand on one's dignity 维持尊严 6．politics n．政治(学) [派生] political adj. 政治的 [联想] ①biology n．生物→biological adj.生物学的② physics n．物理(学)→physical adj.物理的；身体 的 ③chemistry n．化学→chemical adj.化学的④ mathematics n．数学→mathematical adj.数学(上) 的 ⑤history n．历史→historical adj.历史(上)的
记牢固定短语
多积常用词块
1.never_mind 不必担心 2．make_it 成功；按时；赶到 3．all_the_best (祝你)一切顺利 4．in_particular 特别 5．meet_with 遇到；经历；会晤
6．with_dignity 有尊严地；体面地
1.disabled customers 残疾顾客
be easy for sb. to do sth.“对某人来说做某 事很容易”。
However, it
is_not_so_easy_for_people_to_realize their dreams every time. (2013·北京高考 书面表达) 然而，人们每次都能实现他 们的梦想却不是容易的事情。
3.This would allow hearingimpaired
customers to enjoy the company of
their hearing friends rather than having to sit in a special area. 这样可 以使那些听力有缺陷的观众和他们 听力正常的朋友坐在一起，而不是 让他们坐在一个特定的区域。
记牢固定短语
多积常用词块
1.never_mind 不必担心 2．make_it 成功；按时；赶到 3．all_the_best (祝你)一切顺利 4．in_particular 特别 5．meet_with 遇到；经历；会晤
6．with_dignity 有尊严地；体面地
1.disabled customers 残疾顾客
be easy for sb. to do sth.“对某人来说做某 事很容易”。
However, it
is_not_so_easy_for_people_to_realize their dreams every time. (2013·北京高考 书面表达) 然而，人们每次都能实现他 们的梦想却不是容易的事情。
3.This would allow hearingimpaired
customers to enjoy the company of
their hearing friends rather than having to sit in a special area. 这样可 以使那些听力有缺陷的观众和他们 听力正常的朋友坐在一起，而不是 让他们坐在一个特定的区域。
人教版PEP四年级英语上册全册精美ppt课件
课后作业
Homework
1. 把本课let’s talk 读给家长听。 2. 四会本课重点词汇。
39
Unit 1 My classroom
人教版 (三年级起点) 四年级上册
Part B
课前热身
师生一起复习上节课Let’s do 部分内容，同 学们模仿做动作。
Open the door. Turn on the light. Close the window. Put up the picture. Clean the blackboard.
巩固练习
二、给下列句子选择相应的答案。
( B )1. Let’s
the classroom.
A. help
B. clean
C. close
( C )2. Let
clean the blackboard.
A.I
B. my
C. me
( A )3. —
is the green chair?
— It’s near the window.
Unit 1 My classroom
人教版 (三年级起点) 四年级上册
Part A
课前热身
师生对话： T：Hello! Welcome to our school!
Nice to meet you! S: Nice to meet you, too. T: How are you? S: Fine,thank you.
课文原文
课堂互动
Group work
涂一涂，说一说。
课文原文
x √ x √
课文原文
desk chair window
课文朗读
小喇叭朗读开始 了，点一点音箱，一 起学Let's check吧。
PEP人教版五年级英语上册全册PPT课件
A. She likes apples. B. She’s strict and kind. C.She is our principal.
小
结
What’s Wu Yifan like ？ polite
clever He’s hard--working
Helpful shy
GOOD BYE
• 第六课
人教版PEP小学五年级上册全册 教学课件
1-6单元全套
后附教学目录
目录（全套800张）
Unit 1
6课时
Unit 2
6课时
Unit 3.
6课时
Recycle 1
2课时
Unit 4
6课时
Unit 5
6课时
Unit 6
6课时
Recycle 2
2课时
Unit 1 What’s he like? 第一课时
Yes,
Do you know her？ Yes, She is my mother ！
Who is your teacher? Mrs. Liu. Is she young? Yes! And she is smart.
Who’s your Chinese teacher? Mr. Li. Is he tall? Yes, and he is young.
What is Miss Chen like？ What is Mr Grey like？
Story time
1) The new P.E. teacher is a lady.
TF
2) The new P.E. teacher can play football.
TF
3) The new P.E. teacher is tall and strong.
小
结
What’s Wu Yifan like ？ polite
clever He’s hard--working
Helpful shy
GOOD BYE
• 第六课
人教版PEP小学五年级上册全册 教学课件
1-6单元全套
后附教学目录
目录（全套800张）
Unit 1
6课时
Unit 2
6课时
Unit 3.
6课时
Recycle 1
2课时
Unit 4
6课时
Unit 5
6课时
Unit 6
6课时
Recycle 2
2课时
Unit 1 What’s he like? 第一课时
Yes,
Do you know her？ Yes, She is my mother ！
Who is your teacher? Mrs. Liu. Is she young? Yes! And she is smart.
Who’s your Chinese teacher? Mr. Li. Is he tall? Yes, and he is young.
What is Miss Chen like？ What is Mr Grey like？
Story time
1) The new P.E. teacher is a lady.
TF
2) The new P.E. teacher can play football.
TF
3) The new P.E. teacher is tall and strong.
专业英语ppt课件
性原则 词根：interoperable 彼此协作的；能共同操作的；
能共同使用的
isolator /'aisəleitə/
n. [电子] 隔离器；隔音装置；绝缘体
—— vibration isolator 隔振器
—— optical isolator 光完频整版隔ppt离课件器
18
Words and Expressions
n. [物] 衰减；变薄；稀释
—— attenuation coefficient 衰减系数
—— noise attenuation 噪完声整版衰pp减t课件
6
Words and Expressions
avalanche /'ævəlɑːnʃ/
n. 雪崩 vt. 雪崩 vi. 崩塌 —— avalanche photodiode 雪崩光电二极管 —— avalanche breakdown 雪崩击穿
modal
/'məʊd(ə)l/
adj. 模式的；情态的；形式的 n. 莫代尔（一种新型纤维素纤维） —— modal dispersion 模间色散 —— modal logic 模态逻辑
moderate
/'mɒd(ə)rət/
adj. 稳健的，温和的；适度的，中等的；有节制的
vi. 变缓和，变弱
—— develop simultaneously 并举
完整版ppt课件
25
Words and Expressions single-mode 单模 multi-mode 多模
step-index fiber
阶跃折射率光纤(SIF) —— step-index monomode fiber 阶跃折射率单模光纤 —— step-Index multimode fiber 阶跃折射率多模光纤
能共同使用的
isolator /'aisəleitə/
n. [电子] 隔离器；隔音装置；绝缘体
—— vibration isolator 隔振器
—— optical isolator 光完频整版隔ppt离课件器
18
Words and Expressions
n. [物] 衰减；变薄；稀释
—— attenuation coefficient 衰减系数
—— noise attenuation 噪完声整版衰pp减t课件
6
Words and Expressions
avalanche /'ævəlɑːnʃ/
n. 雪崩 vt. 雪崩 vi. 崩塌 —— avalanche photodiode 雪崩光电二极管 —— avalanche breakdown 雪崩击穿
modal
/'məʊd(ə)l/
adj. 模式的；情态的；形式的 n. 莫代尔（一种新型纤维素纤维） —— modal dispersion 模间色散 —— modal logic 模态逻辑
moderate
/'mɒd(ə)rət/
adj. 稳健的，温和的；适度的，中等的；有节制的
vi. 变缓和，变弱
—— develop simultaneously 并举
完整版ppt课件
25
Words and Expressions single-mode 单模 multi-mode 多模
step-index fiber
阶跃折射率光纤(SIF) —— step-index monomode fiber 阶跃折射率单模光纤 —— step-Index multimode fiber 阶跃折射率多模光纤
英语八大时态PPT课件(详细版)
14
The man ____ with his parents once a year.
(2014 )
A.goes travel
B. goes traveling
C. is going travel D.is going traveling
She is doing her homework while her mother ____ to her.(2014 ) A. speaks B. spoke C.to speak D. speaking
I will not let you go until you have finished your work.
31
※和time连用的情况 This/It is the first time that I have seen a panda.
※由since引导的从句中，主句用 现在完成时，从句用一般过去时。 We have been friends since we met at school.
23
※be to do:表示已经计划或安排 好的动作。 The president is to visit China next week.
The meeting is to start early tomorrow.
24
※be about to do:表示马上要发 生的事，不强调主观。
The train is about to leave.
我今年20岁，住在北京。 I am twenty years old this year , and I live in Beijing.
火车将在一个小时后（in an hour）出发（set off）。 The train sets off in an hour.
The man ____ with his parents once a year.
(2014 )
A.goes travel
B. goes traveling
C. is going travel D.is going traveling
She is doing her homework while her mother ____ to her.(2014 ) A. speaks B. spoke C.to speak D. speaking
I will not let you go until you have finished your work.
31
※和time连用的情况 This/It is the first time that I have seen a panda.
※由since引导的从句中，主句用 现在完成时，从句用一般过去时。 We have been friends since we met at school.
23
※be to do:表示已经计划或安排 好的动作。 The president is to visit China next week.
The meeting is to start early tomorrow.
24
※be about to do:表示马上要发 生的事，不强调主观。
The train is about to leave.
我今年20岁，住在北京。 I am twenty years old this year , and I live in Beijing.
火车将在一个小时后（in an hour）出发（set off）。 The train sets off in an hour.
(完整版)初中英语PPT课件
Put the bananas and yogurt in the blender. Then Pour the milk in the blender.
Next, Turn on the blender.
Finally Pour the smoothie
in a glass and drink.
13
19
20
7
A: Let’s make fruit salad. B: OK, good idea. How much
cinnamon do we need? A: One teaspoon. B: And how many apples do
we need? A: Let me think… We need two apples.
a glass of orange
two glasses of orange
a cup of yogurt
two cups of yogurt
11
12
A: How do you make a banana/ apple/… smoothie?
First, peel the bananas.
Then cut up the bananas.
three apples
two strawberries a cup of yogurt
one teaspoon of honey
6
How many bananas do we need?
We need three bananas.
How much yogurt do we need?
We need one teaspoon of yogurt.
17
How to make a chicken sandwich?
Next, Turn on the blender.
Finally Pour the smoothie
in a glass and drink.
13
19
20
7
A: Let’s make fruit salad. B: OK, good idea. How much
cinnamon do we need? A: One teaspoon. B: And how many apples do
we need? A: Let me think… We need two apples.
a glass of orange
two glasses of orange
a cup of yogurt
two cups of yogurt
11
12
A: How do you make a banana/ apple/… smoothie?
First, peel the bananas.
Then cut up the bananas.
three apples
two strawberries a cup of yogurt
one teaspoon of honey
6
How many bananas do we need?
We need three bananas.
How much yogurt do we need?
We need one teaspoon of yogurt.
17
How to make a chicken sandwich?
英语人教版九年级全册课件ppt
CD
He was the only little kid at the picnic.
She always listens to pop music. He loves rabbits.
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
could 和 might
can’t
表示不太有把握 The pen could /
的推测，意为 might be Joe’s. I saw
“可能”。
it on his desk just
now.
表示很有把握的 The girl here can’t be
否定推测，意为 Helen. Helen has “不可能”。 gone to Beijing.
Things in the schoolbag
1. T-shirt 2. hair band 3. tennis balls
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
从使用情况来看，闭胸式的使用比较 广泛。 敞开式 盾构之 中有挤 压式盾 构、全 部敞开 式盾构 ，但在 近些年 的城市 地下工 程施工 中已很 少使用 ，在此 不再说 明。
2a
Bob and Anna found a schoolbag at the park. Listen and write down the things in the schoolbag.
Linda. 5. It _m_u__st_ be Linda’s schoolbag.
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Na2CO3
H2O/H2SO4
High purity sand ==> Silicon oxide ======>Silicate glass (SiO2/Na2O) ==========> SiO2
(SiO2/Na2O)aq + 2 H2SO4
Polymerization
Nucleation Growth Aggregation Consolidation
SiO2 + Na2SO4 + H2O
Layout of Main Manufacturing process
Sand
Sodium Carbonate
Dilution
Mixing Chamber
Oven 1400℃
Liquid Silicate
Vitrous Silicate
H2O
dissolution
2) Dis-advantage : Poor dispersity and processing problems.
Manufacturing methods of silica
1.Natural Silica
2.Synthetic Silica --Amorphous type
（1）Fumed silica (pyrogenic process)--Anhydrous silica
。
Economic Development Zone of BanQiao
Fengyang Anhui (New)
DongHuTang Wuxi
Agenda
公司的历程 Company History
白炭黑的一般特性与产品 General properties and our products of silica 白炭黑的应用 Application of Silica & Carbon Black
• Poor interaction of silica with elastomer leads to the careful selection of microstructure of solution SBR to get optimum reinforcement.
2019
The 3rd line Construction in Wuxi( 160 acres)
Establish R＆D Center at Q&C
201 2
Total cap of silica 370,000MT／YR sodium silicate 560,000MT/YR
2016
Achievement of Big 3 Silica maker
Company history
2019 Foundation
Development History
2019
2019
2009
1st plant commercial Production of
silica production
advanced
silica
Plant construction in Fengyang Anhui (800 acres)
CONTENTS
SILICA
CARBON BLACK
Structure
Polarity Affinity with Polymer Filler-Filler Interaction Polymer-Filler Bonding
Cost
Polar
Low
High Chemical Bonding
(with Silane Coupling Agent)
SiO2 + -(-Six(OH)y-)n-
Types
1) Raw silica 2) Silane coupled silica 3) New silica(High dispersible)
Properties
1) Advantage : Improvement of R/R & Wet traction Low H.B.U and good CUT&CHIP Excellent Snow & Ice traction
pollution and harmful health 4.To induce next generation filler 5.To prepare green round and
regulation
General properties of Silica
Chemical structure
（2）Electric arc silica (Pyrogenic process) （3）Fused silica （4）Silica gel (Wet process) （5）Precipitated silica (Wet process)---Hydrated silica
Precipitated silica
Silica+Si69 ASTM C/B
Wet grip
“Green Tire Concept” introduced into European Market.
• This can be achieved mainly with silica/silane system and a special solution SBR polymer to overcome the trade-off problem in performances among wet grip, rolling resistance and abrasion.
Filler-Filler Interaction Interaction with elastomer
Silanols : isolated Geminal,Vicinal
Hydrophilic
Strong (poor dispersion)
Weak
Phenol,carboxyl ketone, quinone
Classification R.R.
WET SNOW Abrasion Cost Processing Efficiency
Better
Worse
Silica properties & Tires Performance
Newsil-115
Dispersibility
Improve Processability
High High E-SBR
100 100
Wet Traction Region
R.R. Region
Tan Delta
CB Comp’d Silica Comp’d
-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Comparison of Silica vs. Carbon Black Compound
OC 2H 5
OC 2H5
Silanol Group of Silica
Bis-(3-Ethoxy Silylpropyl)- S i
Tetrasulfane
Si
(Si-69)
Si
Si
Si
O Si OC2H5
O
(C H2)3 S S
O Si (C H2)3 S S
O
O C2H5
OH
Intermediate
2) Filling agent is used for reducing cost, improving processibility and increasing rubber volume without deteriorating physical properties.
.
Types
1) Reinforcing agent : Silica, Hard clay 2) Filling agent : Soft clay, CaCO3, Ca(OH)2,TALC.
H2SO4 precipitation
slurry
filtration washing cake SiO2 + H2O liquefaction
Drying
grinding micronization
compacting
storage
Inorganic filler
Definition
1) Reinforcing agent is used for improving hardness, tensile strength, tear strength and abrasion resistance
Application of Silica & Carbon Black
April.26th.2019
Wuxi Quechen silicon chemical Co.,Ltd
The Front View and location of Company
Q&C Wuxi Quechen Silicon Chemical Co.,Ltd.Position:
Volume specific surface Area of fillers
0 20 40 60 80
100
200
300
400
Volume specific surface area,㎡/cm3
Figure49
A perspective of the Surface Area of Differrent for Rubber
Prospect and Development of silica
Trend and Requirment of silica
1.To reduce contamination(CO2↑etc) 2.To reduce fuel energy consumption 3.To prevent environmental