Chapter 7 Integration.ppt
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高中英语必修7(外研版)1-3Integrating Skills教学课件
10．_a_p_p_o_i_n_t _ v. 任命，委派→appointment n. 任命；约会 →appointed adj.ra_t_eadj. 体谅的，考虑周到的→consideration n. 考虑 →considerable adj. 相当大的；相当多的
parents. 既然你长大了，就不应该依赖父母了。 ②You shouldn't always rely just on the Internet for your research. 你不能总是仅仅依靠网络进行研究。
3．bring up 抚养，养大；提出；呕吐 (教材 P9)He has been brought up and trained in this way. 他是被这种方式教育和培养起来的。 (1)bring about 引起，导致，造成 (2)bring in 引进；赚钱；请来 (3)bring out 显示出来，使……表现出来 ①The witness brought up fresh evidence. 证人提出新的证据。
②Martin has been bringing up all morning. 马丁整个早上都在呕吐。 ③Difficulties can bring out a person's best qualities. 困难能使一个人最好的品质显示出来。
4．instant adj. 立刻的；即刻的；(食品等)速食的 n. 瞬间， 刹那
①This account gives you instant access to your money. 这个账户可以让你立即提款。 ②The instant I saw him, I knew he was the man the police were
parents. 既然你长大了，就不应该依赖父母了。 ②You shouldn't always rely just on the Internet for your research. 你不能总是仅仅依靠网络进行研究。
3．bring up 抚养，养大；提出；呕吐 (教材 P9)He has been brought up and trained in this way. 他是被这种方式教育和培养起来的。 (1)bring about 引起，导致，造成 (2)bring in 引进；赚钱；请来 (3)bring out 显示出来，使……表现出来 ①The witness brought up fresh evidence. 证人提出新的证据。
②Martin has been bringing up all morning. 马丁整个早上都在呕吐。 ③Difficulties can bring out a person's best qualities. 困难能使一个人最好的品质显示出来。
4．instant adj. 立刻的；即刻的；(食品等)速食的 n. 瞬间， 刹那
①This account gives you instant access to your money. 这个账户可以让你立即提款。 ②The instant I saw him, I knew he was the man the police were
Chapter 07 Techniques of Integration课件
x ln xdx, x sin xdx, ex sin xdx
7.2 Trigonometric integrals
Question 1: How to evaluate sin m xcosn xdx ？
(a) If the power of cosine is odd ( n=2k+1 ).
Example 3. Find sin 4 xdx
Question 2: How to evaluate tanm xsecn xdx ？
(a) If the power of secant is even ( n=2k). • Save a factor of sec2 x to sec2 xdx d tan x • Use sec2 x 1 tan2 x to express the remaining factors in terms of tanx:
f (x)g(x)dx f (x)g(x) f (x)g(x)dx
Example 1. Find x cos xdx
Example 2. Evaluate ln xdx
Example 3. Find
x 2e x dx
Example 4. Evaluate ex sin xdx
The formula for definite integration by parts
(3)
b
a
f
(x)g(x)dx
f
(x)g(x)
b
a
f
( x) g ( x)dx
Example 5. Calculate
1
0
tan 1
xdx
Example 6. Prove the reduction formula
7.2 Trigonometric integrals
Question 1: How to evaluate sin m xcosn xdx ？
(a) If the power of cosine is odd ( n=2k+1 ).
Example 3. Find sin 4 xdx
Question 2: How to evaluate tanm xsecn xdx ？
(a) If the power of secant is even ( n=2k). • Save a factor of sec2 x to sec2 xdx d tan x • Use sec2 x 1 tan2 x to express the remaining factors in terms of tanx:
f (x)g(x)dx f (x)g(x) f (x)g(x)dx
Example 1. Find x cos xdx
Example 2. Evaluate ln xdx
Example 3. Find
x 2e x dx
Example 4. Evaluate ex sin xdx
The formula for definite integration by parts
(3)
b
a
f
(x)g(x)dx
f
(x)g(x)
b
a
f
( x) g ( x)dx
Example 5. Calculate
1
0
tan 1
xdx
Example 6. Prove the reduction formula
Unit4 Integration课件2024-2025学年牛津译林版英语七年级上册
●area n. 区域，面积，领域 ●She knows this area very well. 她非常了解这地区的情况。
Part D
●Sunshine Middle School newsletter is inviting students to send in
（递交） articles about their hands-on（动手的，实际操作的）
●1. What can the Grade 7 students do on the autumn field trip?
●2. What do you like about your field trips? Why?
What can the Grade 7 students do on the autumn field trip?
Learning through chores（日常事务）
What is it? Students work in groups and take turns to do different chores .
turn n. 机会 It’s one’s turn to do sth. 轮到××做... It’s my turn to clean the classroom. take turns to do sth. 轮流做...
●我们会尽全力帮助别人的。
●We will try our best to help other people.
●good-better-best 好的-更好的-最好的 原级-比较级-最高级
make things better 让事情更好
He is my best friend. 最好的朋友
●tiring adj. 累人的,使人疲劳的 ●tired adj. 疲劳的,累的
Part D
●Sunshine Middle School newsletter is inviting students to send in
（递交） articles about their hands-on（动手的，实际操作的）
●1. What can the Grade 7 students do on the autumn field trip?
●2. What do you like about your field trips? Why?
What can the Grade 7 students do on the autumn field trip?
Learning through chores（日常事务）
What is it? Students work in groups and take turns to do different chores .
turn n. 机会 It’s one’s turn to do sth. 轮到××做... It’s my turn to clean the classroom. take turns to do sth. 轮流做...
●我们会尽全力帮助别人的。
●We will try our best to help other people.
●good-better-best 好的-更好的-最好的 原级-比较级-最高级
make things better 让事情更好
He is my best friend. 最好的朋友
●tiring adj. 累人的,使人疲劳的 ●tired adj. 疲劳的,累的
2024年新译林版英语七年级上册全册教学课件 Unit 7 (4.Integration)
He gave a short survey of the situation. 他对情况作了简要的概述。
send /send/ v.发送（过去式为sent） ［及物动词］其后可以接双宾语。 send sb. sth.=send sth. to sb. 把某物发送给某人
Don’t forget to send me an email (=send an email to me). 别忘了给我发一封电子邮件。
This is a gathering of friends and relatives. 这是一场亲朋好友的聚会。
7 My uncle lives far away in Shenzhen，so he sometimes sends me online red packets. 我叔叔远在深圳， 所以他 有时会给我发网上红包。（教材P89）
6 Some of my other relatives do too.我的一些其他亲戚也 给我。（教材P89）
relative /ˈrelətɪv/ n.亲戚 ［可数名词］a close/distant relative近/远亲 friends and relatives 亲友
Good neighbours are better than distant relatives. 远亲不如近邻。
He likes collecting coins (可数名词).他喜欢收集硬币。 You can pay me in coin (不可数名词).你可以付我硬币。
the other side of the coin事情的另一面 two sides of the same coin同一事物密切相关的两个方面
lucky /ˈlʌki/ adj.带来好运的；幸运的 由“luck （n.运气）+ -y”构成。 be/feel lucky to do sth.有幸做某事 What a lucky girl!多么幸运的女孩啊！（作定语） We are lucky to live in a peaceful country. 我们很幸运生活 在一个和平的国家。（作表语）
send /send/ v.发送（过去式为sent） ［及物动词］其后可以接双宾语。 send sb. sth.=send sth. to sb. 把某物发送给某人
Don’t forget to send me an email (=send an email to me). 别忘了给我发一封电子邮件。
This is a gathering of friends and relatives. 这是一场亲朋好友的聚会。
7 My uncle lives far away in Shenzhen，so he sometimes sends me online red packets. 我叔叔远在深圳， 所以他 有时会给我发网上红包。（教材P89）
6 Some of my other relatives do too.我的一些其他亲戚也 给我。（教材P89）
relative /ˈrelətɪv/ n.亲戚 ［可数名词］a close/distant relative近/远亲 friends and relatives 亲友
Good neighbours are better than distant relatives. 远亲不如近邻。
He likes collecting coins (可数名词).他喜欢收集硬币。 You can pay me in coin (不可数名词).你可以付我硬币。
the other side of the coin事情的另一面 two sides of the same coin同一事物密切相关的两个方面
lucky /ˈlʌki/ adj.带来好运的；幸运的 由“luck （n.运气）+ -y”构成。 be/feel lucky to do sth.有幸做某事 What a lucky girl!多么幸运的女孩啊！（作定语） We are lucky to live in a peaceful country. 我们很幸运生活 在一个和平的国家。（作表语）
chapter 7信号与系统 奥本海默 华科 电信系 英文 课件
1/3 1/2
1 3/2
Re
z
1 2
Example 7.4 n 1 Consider the signal x[n] 3 sin 4 n u[n].
x[n]
The z-transform of this signal is n n 1 1 1 j / 4 1 1 j / 4 1 X ( z) 3 e z 2 j 3 e z 2 j n 0 n 0
7.1 THE Z-TRANSFORM
The z-transform of a general discrete-time signal x[n] is defined as
X ( z)
n
x[n]z n
where z is a complex variable.
z re j , Expressing the complex variable z in polar form as
Example 7.2 Determine the z-transform of
X ( z ) a nu[n 1]z n
n
x[n] a nu[n 1].
a z
n
1
n n
a z
n n 1
n
1 (a z )
1 1 j / 4 1 1 e u[n] e j / 4 u[n] 2j3 2j3
n
n
1 1 1 1 Im j / 4 1 2 j 1 1 e z 2 j 1 1 e j / 4 z 1 3 3
ChapterSevenPPT课件
16
Writing Principles of Letters of Payment Terms • state clearly the current situation and the problems • raise the specific requirement • make a definite reply. If declining the
of Exchange, Promissory Notes, Check) 票据是具有一定格式、有付款人到期对持票人或者其指 定人无条件支付确定金额的信用凭证。
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2. Modes of international settlement Remittance汇款 Collection 托收 Letter of Credit信用证 Letter of Guarantee银行保函 Stand-by Letter of Credit 备用信用证
Chapter Seven Terms of Payment
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Reference Books:
1. 国际贸易结算 李晓杰 徐曙娜 上海财经出版社 2003年2月 2.国际结算 应诚敏 刁德霖 高等教育出版社 上海社会科学出版社 2000年7月
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International Settlement 国际结算
ICC:
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当代国际贸易结算的特点
1.凭单付款 2.非现金结算 3.以银行为中心的国际结算体系 4.结算单据多样化和EDI( Electronic Data Interchange)
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全球性帐务清算和资金转移网络有3个：
2024新译林七上 7A Unit1 Integration 课件
( D)5. My father helps my mother ______the cooking ______the weekend. A. with; at B. do; on C. to do; at D. all above(以上都对)
Write your own self-introduction.
1. 不少于80词 2. 组内初评1-2名佳作 3. 佳作展示 4. 上交作文本
Goodbye
6. 7.
My Do
ygoraunkdnpoawrehnotswa_re__h_a_p_p_y________t(oi_n_str_eo_ed_u_c(es)e_e_) _m_e_.___(you)
,
Simon?
to introduce
yourself
三、单项选择
( B)1.We will have a ping-pong match _____ Class2 ______5:30 tomorrow.
1. problem n. 数学题、难题、困难 maths problems work out / solve problems have problems with/ doing sth
2. weekend n. 周末 at/on the weekend at/on weekends 对应词组 on weekdays
Useful expressions
My name is… / I am… I am … (years old) I am in.. I like/love Maths/ Computer Science… I like to… I am good at… I am interested in… My favourite … is… I often play … at the weekend.
Unit7Integration(A-B)课件牛津译林版英语七年级上册
coin n. 硬币
Each coin ቤተ መጻሕፍቲ ባይዱas two sides. 事情都有两面性。
Word bank
for 表目的
Here's... Here you are.倒装句
➢ —Here’s 30 yuan for the book. 这是买这本书的30元钱。 — Thanks. Here you are. 谢谢，给你。
11.20
Unit7
Lead-in
Do you know any ways to pay?
The history of money
Shell
Paper money
Coin
e-RMB
Reading
1. How many ways to pay are there in the pictures? Four.
Pre-listening
关于金钱的演出
来自不同时代的金钱 看视频 使用纸币 不同种类的金钱 世界各地
While-listening
On Sunday all kinds paper money fun facts first
talk
Post-listening
Post-listening
Post-listening
2. What other kinds of money do you know about? E-CNY.数字人民币。
New words
Shell n. 壳，贝壳
in the shell 尚未成熟，在酝酿之中
Deal n. 交易（口语用词，指买卖 双方经过交涉达成协议成交。）
Word bank
I give you...shells.You give me....OK? Ok. That’s a deal. How much is/are...? ...coins.