1—12的英文怎么写

2-----是无穷等比级数，公式为一减公比分之首项
7-----循环小数6.999999.....可以表示成6又9/9 ->也就是7
9-----4进位的21，2*4+1=9
10---其实这是C5取2的另一种表示法，C5取2的算法=5*4/1*2
11---0x0B是电脑的16进位表示法，A=10 B=11 C=12 ... F=15，所以0*16+11=11

没图,不过我想是一个四边形式的图
做法如下,结果我就不给求了,肯定会有人给你写出来的
先求出这12个数的和,用两头相加再乘个数的方法,很简单的,(1+12)+(2+11).
然后除以4就是每条直线上4个数字的和
把那4个数相加和是这个数的式子找出来,然后向上放就行了,

第一、四、六个词你好像打错字了,还有啊,就算不能输入声调,至少你也标明一下嘛.这样很难耶小朋友
俊逸、引吭、岑寂
其他的估计都是你打错字了.其实啊,你用sogou输入法啦.打进去就会显示词组出来的.

unit 1：where is your pen pal from?He's from Australia.
where is John's pen pal from?He's from Japan.
where does he live?He lives in Paris.
unit 2:Is there a supermarket?Yes,there is./No,there isn't.
Where's the park?It's on Center Street.
Where's the hotel?It's across from the bank.
Where's the pay phone?It's next to the post office.
Where's the library?lt's between the restaurant and the supermarket.
unit 3:Why do you like pandas?Because they're very cute.
Why does he like koalas?Because they're kind of interesting.
unit 4:What do you do?I'm a reporter.
What does he do?He's a student.
What does she do?She's a doctor.
What do you want to be?l want to be an actor.
What does he want to be?He wants to be a bank clerk.
What does she want to be?She wants to be a shop assistant.
unit 5：What are you doing?l'm watching TV.I'm=l am
What's he doing?He's doing his homework.What's= What is He's=He is
What's she doing?She's reading.She's=She is
unit 6:How's the weather?It's raining.
What are you doing?l'm watching TV.（放心抄,虽然这个句子和第五单元的句子重复了,不过书上确实是这样,可以放心,
What are they doing?They're studying.
What's he doing?He's playing basketball.
What's she doing?She's cooking.
How's it going?Great!
对不起,我没时间了,只能打1到6单元的,如果你还要,我给你发剩下的.

答案：上面从12中间剪,也就是左边是1右边是2.下面从7,6之间剪,这样线的左边是1,11,10,9,8,7和为46.右边是2,1,2,3,4,5,6和为23刚好符合要求.

第一种：1,-2,3,-4,5,-6,-7,8,-9,10,-11,12
第二种：-1,2,-3,4,-5,6,7,-8,9,-10,11,-12
第三种：1,2,3,4,5,-6,7,8,9,-10,-11,-12
……
还有很多,其实只要让负数的和等于-39就可以了阿

e ,你偷懒了点,而且学英语不是为了应付老师的,这事儿应该自己做,如果是题目不会,我还能帮一下

七年级下册英语语法点总结(1)
七年级下册英语语法点总结(1)
分类：英语学习
Unit 1 Where’s your pen pal from?
一．短语：
1 ．be from = come from 来自于----
2． live in 居住在---
3． on weekends 在周末
4 ．write to sb = write a letter to sb 给某人写信；写信给某人
5 ．in the world 在世界上 in China 在中国
6．pen pal 笔友 14 years old 14岁 favorite subject 最喜欢的科目
7．the United States 美国 the United Kingdom 英国 New York 纽约
8．speak English 讲英语 like and dislike 爱憎
9．go to the movies 去看电影 play sports 做运动
二．重点句式：
1 Where’s your pen pal from? = Where does your pen pal from/
2 Where does he live?
3 What language(s) does he speak?
4 I want a pen pal in China.
5 I can speak English and a little French.
6 Please write and tell me about yourself.
7 Can you write to me soon?
8 I like going to the movies with my friends and playing sports.
三．本单元的国家,人民、语言对应.
1 Canada---- Canadian---- English / French
2 France------ French------French
3 Japan------Japanese----Japanese
4 Australia----Australian----- English
5 the United States------ American---- English
6 the United Kingdom---British----- Enghish
Unit 2 Where’s the post office?
一． Asking ways: (问路)
1． Where is (the nearest) ……? （最近的）……在哪里?
2． Can you tell me the way to ……? 你能告诉我去……的路吗?
3． How can I get to ……? 我怎样到达……呢?
4． Is there …… near here / in the neighborhood? 附近有……吗?
5． Which is the way to ……? 哪条是去……的路?
二．Showing the ways: （指路）
1. Go straight down / along this street. 沿着这条街一直走.
2. Turn left at the second turning. 在第二个路口向左转.
3. You will find it on your right. 你会在你右手边发现它.
4. It is about one hundred metres from here. 离这里大约一百米远.
5. You’d better take a bus. 你最好坐公交车去.（You’d better+动词原形）
三．词组
1. across from …… 在……的对面 across from the bank 在银行的对面
2. next to…… 紧靠…… next to the supermarket 紧靠超市
3. between……and…… 在……和……之间
between the park and the zoo 在公园和动物园之间
among 表示位于三者或三者以上之间
4. in front of…… 在……前面 There is a tree in front of the classroom.
课室前面有棵树.
in the front of…… 在……（内）的前部 There is a desk in the front of the classroom.
课室内的前部有张桌子.
5. behind…… 在……后面 behind my house 在我家后面
6. turn left/ right 向左/右拐
on the left/right of…… 在某物的左/右边 on the left of our school 在我们学校的左边
on one’s left/right 在某人的左/右边 on my left 在我左边
7. go straight 一直走
8. down /along…… 沿着……（街道） down/along Center Street 沿着中央街
9. in the neighborhood=near here 在附近
10 welcome to…… 欢迎来到……
11. take /have a walk 散步
12. the beginning of…… ……的开始,前端
at the beginning of…… 在……的开始,前端
in the beginning 起初,一开始
13. have fun=have a good time=enjoy oneself 玩得开心,过得愉快
我昨天玩得很开心. I had fun yesterday.
I had a good time yesterday.
I enjoyed myself yesterday.
14. have a good trip 旅途愉快
15. take a taxi 坐出租车
16. 到达：get to +地方 get here/ there/ home 到这/那/家
arrive in +大地方 I arrive in Beijing.
arrive at +小地方 I arrive at the bank.
reach +地方
17．go across 从物体表面横过 go across the street 横过马路
go through 从空间穿过 go through the forest 穿过树林
18．on + 街道的名称. Eg: on Center Street
at + 具体门牌号+街道的名称 Eg: at 6 Center Street
三．重难点解析
1．enjoy doing sth 享受做某事的乐趣,喜爱做某事
I enjoy reading. 我喜爱读书.
到目前为止,我们学了两个特殊的动词finish和enjoy,都是要带 doing.
I finish cleaning the room. 我扫完了这间屋子.
2．hope to do sth 希望做某事 I hope to pass this exam. 我希望通过这次考试.
hope +从句 I hope tomorrow will be fine. 我希望明天将会晴朗.
（从句即是一个小句子,这个小句子又放在大句子中,从属于大句子,所以叫从句.如tomorrow will be fine是一个从句,它又放在I hope 的后面,形成句中有句.）
3. if 引导一个表示假设的句子.
If I have much money, I will go to the moon. 如果我有许多钱,我就会去月球.
If you are hungry, you can buy some food in the supermarket.
如果你饿了的话,你可以在超市买一些食物.
四．本单元的反义词、近义词配对
1new—old 2 quiet--- busy 3 dirty--- clean 4 big---- small
Unit 3 Why do you like koala bears?
一．重点词组
eat grass eat leaves be quiet very shy very smart very cute
play with her friends kind of South Africa other animals
at night in the day every day during the day
二. 交际用语
1. Why do you like pandas? Because they’re very clever.
2. Why does he like koalas? Because they’re kind of interesting.
3. Where are lions from? They are from South Africa.
4. What other animals do you like?
I like dogs, too.
Why?
Because they’re friendly and clever.
5. Molly likes to play with her friends and eat grass.
6. She’s very shy.
7. He is from Australia.
8．He sleeps during the day, but at night he gets up and eats leaves.
9．He usually sleeps and relaxes 20 hours every day.
10．Let’s see the pandas first.
11．They’re kind of interesting.
12．What other animals do you like?
13．Why do you want to see the lions?
三. 重点难点释义
1、kind of 有点,稍微
Koala bears are kind of shy. 考拉有点害羞.
kind 还有“种类”的意思
如：各种各样的 all kinds of
We have all kinds of beautiful flowers in our school.
2、China n. 中国 Africa n. 非洲
China 和Africa都是专有名词,首字母都应该大写,而且和介词in连用.
There are many kinds of tigers in China.
There are many kinds of scary animals in Africa.
3、friendly adj. 友好的,和蔼可亲的
它是名词friend的形容词形式,常常和be动词连用, be friendly.
The people in Chengdu are very friendly.
4、with prep. 跟,同,和…在一起
I usually play chess with my father.
注意区别与and的用法,and通常用于连接主语或宾语,连接主语时,
如果有I, I通常放在 and 之后,如：
My father and I usually play chess together.
Play with “和…一起玩耍”“玩…”
I often play with my pet dog.
Don’t play with water!
5、day和night 是一对反义词,day 表示白天或一天,night表示夜或夜晚.
通常说in the day, during the day, at night.
Koala bears often sleep during the day and eat leaves at night.
6、leaf n. 叶子
复数形式为：leaves, 类似的变化还有：wife—wives, wolf—wolves,
knife—knives等.
7、hour n. 小时；点钟
hour前边通常加上冠词an 表示“一个小时”, 即：an hour.
There are 24 hours in a day and 60minutes in an hour.
8、be from 来自…
be from = come from
Pandas are from China. = Pandas come form China.
9、meat n. （食用的）肉,为不可数名词,表示“许多”时,使用much来修
饰,即：much meat
He eats much meat every day.
10、grass n. 草,为不可数名词,表示“许多”时,使用much来修饰,即：much grass.
There is much grass on the playground.
四. 语法知识
特殊疑问句通常以“what”、“who”、“which”、“when”、“where”、“how”、“how old”、“how many”等开头,对某一具体问题进行提问.
特殊疑问句的基本构成有两种情况：
1. 疑问句+一般疑问句结构.这是最常见的情况.例如：
What’s your grandfather’s telephone number? 你爷爷的电话号码是多少?
Who is that boy with big eyes? 那个大眼睛的男孩是谁?
Which season do you like best? 你最喜欢哪个季节?
When is he going to play the piano? 他什么时候弹钢琴?
Where does he live? 他住在哪儿?
How are you? 你好吗?
How old are you? 你多大了?
How many brothers and sisters do you have? 你有几个兄弟姐妹?
2. 疑问句+陈述句结构.这时疑问词作主语或修饰主语.例如：
Who is on duty today?
今天谁值日?
Which man is your teacher?
哪位男士是你的老师?
我们学过的What/How about+名词/代词+其他?也是特殊疑问句,它是一种省略结构.
例如：
I like English. What/How about you? 我喜欢英语.你呢?
What about playing basketball? 打篮球怎么样?
Unit 4 I want to be an actor.
一．短语：
1 want to do sth 想要作某事
2 give sb sth = give sth to sb 给某人某物 / 把某物给某人
3 help sb do sth 帮助某人作某事 Eg: I want to help my mother do some housework at home.
4 help sb with sth 帮助某人谋事 Eg: I want to help my mother with some housework at home
5 in the day 在白天
6 at night 在晚上
7 talk with/ to sb 和----谈话
8 be busy doing sth 忙于做某事 Eg: He is busy listening to the teacher.
9 in a hospital 在医院l
10 work/ study hard 努力工作
11 Evening Newspaper 晚报
二．重点句式及注意事项：
1 询问职业的特殊疑问词是what；有三种主要句式
① What + is / are + sb?
② What + does/ do + sb + do?
③ What + is/ are + 名词所有格/ 形容词性物主代词 + job?
2 People give me their money or get their money from me.
3 Sometimes I work in the day and sometimes at night.
4 I like talking to people.
5 I work late. I’m very busy when people go out to dinners.
6 Where does your sister work?
7 then we have a job for you as a waiter.
8 Do you want to work for a magazine? Then come and work for us as a reporter.
9 Do you like to work evenings and weekends?
10 We are an international school for children of 5-12.
三． 本单元中的名词复数.
1 policeman--- policemen 2 woman doctor----- women doctors 3 thief-----thieves
转自http://www.***.com/s?tn=sitehao123&bs=%B9%D8%D3%DA%D1%A7%CF%B0%B5%C4%D3%A2%CE%C4%B9%CA%CA%C2&f=8&wd=%C6%DF%C4%EA%BC%B6%CF%C2%D3%A2%D3%EF%D3%EF%B7%A8%B9%E9%C4%C9

Dim xx1%,yy1% '宣告变量xx1,yy1为整型(给圆心用的)
Private Sub Form_Load()
Me.AutoRedraw = True '重画为真 '窗体置中
Timer1.Interval = 500
Call Form_Resize
End Sub
Private Sub Form_Resize()
Me.Cls
'Me.Move (Screen.Width - Me.Width) 2,(Screen.Height - meiheight) 2 '计算圆心的x轴 xx1
xx1 = Me.Width 2 '计算圆心的y轴 yy1
yy1 = (Me.Height - 405) 2 '将下面3根针的起点x1,y1全定位在圆心上
Line1.X1 = xx1:Line1.Y1 = yy1
Line2.X1 = xx1:Line2.Y1 = yy1
Line3.X1 = xx1:Line3.Y1 = yy1 '画钟的外匡让线条粗一点
Me.DrawWidth = 4 '画一个圆
Me.Circle (xx1,yy1),950
Me.DrawWidth = 2
For i = 0 To 11
Me.Line (950 * Cos(i * (3.14 * 2 / 12)) + xx1,950 * Sin(i * (3.14 * 2 / 12)) + yy1)-(850 * Cos(i * (3.14 * 2 / 12)) + xx1,850 * Sin(i * (3.14 * 2 / 12)) + yy1)
Me.CurrentX = 1100 * Cos(i * (3.14 * 2 / 12)) + xx1 - Me.TextWidth(CStr(i))
Me.CurrentY = 1100 * Sin(i * (3.14 * 2 / 12)) + yy1 - Me.TextHeight(CStr(i)) / 2
Me.Print IIf(i < 10,i + 3,i - 9)
Next
Line2.BorderWidth = 1 '秒针的粗度
Line2.BorderColor = QBColor(12) '秒针的颜色
Line1.BorderWidth = 2 '分针的粗度
Line1.BorderColor = QBColor(14) '分针的颜色
Line3.BorderWidth = 3 '时针的粗度
Line3.BorderColor = QBColor(10) '时针的颜色
End Sub
Private Sub Timer1_Timer()
Me.Caption = Time '标题栏显示现在时间 '
Second Hand '画秒针
'计算秒针的角度,每一秒是 360度除以60秒=6度,所以要乘上6
sdeg = Second(Time) * 6 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180,秒针跑了N度就乘上N
srad = (3.14 / 180) * sdeg '900是秒针的长度,以圆心(line2的x1,y1)为准,计算出在这个弧度时line2.x2在什么位置
Line2.X2 = Line2.X1 + (900 * Sin(srad)) '900是秒针的长度,以圆心(line2的x1,y1)为准,计算出在这个弧度时line2.y2在什么位置
Line2.Y2 = Line2.Y1 - (900 * Cos(srad)) '
Minute Hand '画分针
'计算分针的角度,每一分是360度除以60分=6度,所以要乘上6,秒针动分针也会动,所以还要加上秒针移动所产生的分针移动.
'秒针转了1圈360度,分针才会前进1分钟=6度,所以比例是 6/360等于 1/60
Mdeg = Minute(Time) * 6 + (sdeg * 1 / 60) 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180,分针跑了N度就乘上N
mrad = (3.14 / 180) * Mdeg 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180,分针跑了N度就乘上N
'750是分针的长度,以圆心(line1的x1,y1)为准,计算出在这个弧度时line1.x2在什么位置
Line1.X2 = (750 * Sin(mrad)) + Line1.X1 '750是分针的长度,以圆心(line1的x1,y1)为准,计算出在这个弧度时line1.y2在什么位置
Line1.Y2 = Line1.Y1 - (750 * Cos(mrad)) '
Hour Hand '画时针
'计算时针的角度,每一小时时针跑30度,分针动时针也会动,所以还要加上分针移动所产生的时针移动.
'分针转了1圈360度,时针才会前进1刻划=30度,所以比例是 30/360等于 1/12
hdeg = Hour(Time) * 30 + (Mdeg / 12) 'vb是以弧度为单位来计算,所以角度换算弧度是 3.14/180,时针跑了N度就乘上N
hrad = (3.14 / 180) * hdeg '500是时针的长度,以圆心(line3的x1,y1)为准,计算出在这个弧度时line3.x2在什么位置
Line3.X2 = (500 * Sin(hrad)) + Line3.X1 '500是时针的长度,以圆心(line3的x1,y1)为准,计算出在这个弧度时line3.y2在什么位置
Line3.Y2 = Line3.Y1 - (500 * Cos(hrad))
End Su