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research platform to scholars worldwide.Department of Statistics, UCLA UC Los Angeles
Title:
Causal Diagrams for Empirical Research
Author:Pearl, Judea , University of California, Los Angeles
Publication Date:
01-01-1994
Series:Department of Statistics Papers
Publication Info:
Department of Statistics Papers, Department of Statistics, UCLA, UC Los Angeles
Permalink:https://www.doczj.com/doc/62967952.html,/uc/item/6gv9n38c
Keywords:
Causal inference, graph models, interventions treatment effect
Abstract:
The primary aim of this paper is to show how graphical models can be used as a mathematical language for integrating statistical and subject-matter information. In particular, the paper develops a principled, nonparametric framework for causal inference, in which diagrams are queried to determine if the assumptions available are sufficient for identifiying causal effects from non-experimental data. If so the diagrams can be queried to produce mathematical expressions for causal effects in terms of observed distributions; otherwise, the diagrams can be queried to suggest additional observations or auxillary experiments from which the desired inferences can be obtained.
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to与for的用法和区别 一般情况下, to后面常接对象; for后面表示原因与目的为多。 Thank you for helping me. Thanks to all of you. to sb.表示对某人有直接影响比如，食物对某人好或者不好就用to; for表示从意义、价值等间接角度来说，例如对某人而言是重要的，就用for. for和to这两个介词，意义丰富，用法复杂。这里仅就它们主要用法进行比较。 1. 表示各种“目的” 1. What do you study English for? 你为什么要学英语？ 2. She went to france for holiday. 她到法国度假去了。 3. These books are written for pupils. 这些书是为学生些的。 4. hope for the best, prepare for the worst. 作最好的打算，作最坏的准备。 2．对于 1．She has a liking for painting. 她爱好绘画。 2．She had a natural gift for teaching. 她对教学有天赋/ 3．表示赞成同情，用for不用to. 1. Are you for the idea or against it? 你是支持还是反对这个想法？ 2. He expresses sympathy for the common people.. 他表现了对普通老百姓的同情。 3. I felt deeply sorry for my friend who was very ill. 4 for表示因为，由于（常有较活译法） 1 Thank you for coming. 谢谢你来。 2. France is famous for its wines. 法国因酒而出名。 5．当事人对某事的主观看法，对于（某人），对…来说（多和形容词连用）用介词to，不用for.. He said that money was not important to him. 他说钱对他并不重要。 To her it was rather unusual. 对她来说这是相当不寻常的。 They are cruel to animals. 他们对动物很残忍。 6．for和fit, good, bad, useful, suitable 等形容词连用，表示适宜，适合。 Some training will make them fit for the job. 经过一段训练，他们会胜任这项工作的。 Exercises are good for health. 锻炼有益于健康。 Smoking and drinking are bad for health. 抽烟喝酒对健康有害。 You are not suited for the kind of work you are doing. 7. for表示不定式逻辑上的主语，可以用在主语、表语、状语、定语中。 1．It would be best for you to write to him. 2．The simple thing is for him to resign at once. 3．There was nowhere else for me to go. 4．He opened a door and stood aside for her to pass.
of与for的用法以及区别 for 表原因、目的 of 表从属关系 介词of的用法 （1）所有关系 this is a picture of a classroom （2）部分关系 a piece of paper a cup of tea a glass of water a bottle of milk what kind of football，American of soccer？ （3）描写关系 a man of thirty 三十岁的人 a man of shanghai 上海人 （4）承受动作 the exploitation of man by man．人对人的剥削。 （5）同位关系 It was a cold spring morning in the city of London in England． （6）关于，对于 What do you think of Chinese food？ 你觉得中国食品怎么样？ 介词 for 的用法小结 1. 表示“当作、作为”。如: I like some bread and milk for breakfast. 我喜欢把面包和牛奶作为早餐。What will we have for supper? 我们晚餐吃什么?
2. 表示理由或原因,意为“因为、由于”。如: Thank you for helping me with my English. 谢谢你帮我学习英语。 Thank you for your last letter. 谢谢你上次的来信。 Thank you for teaching us so well. 感谢你如此尽心地教我们。 3. 表示动作的对象或接受者,意为“给……”、“对…… (而言)”。如: Let me pick it up for you. 让我为你捡起来。 Watching TV too much is bad for your health. 看电视太多有害于你的健康。 4. 表示时间、距离,意为“计、达”。如: I usually do the running for an hour in the morning. 我早晨通常跑步一小时。We will stay there for two days. 我们将在那里逗留两天。 5. 表示去向、目的,意为“向、往、取、买”等。如: let’s go for a walk. 我们出去散步吧。 I came here for my schoolbag.我来这儿取书包。 I paid twenty yuan for the dictionary. 我花了20元买这本词典。 6. 表示所属关系或用途,意为“为、适于……的”。如: It’s time for school. 到上学的时间了。 Here is a letter for you. 这儿有你的一封信。 7. 表示“支持、赞成”。如: Are you for this plan or against it? 你是支持还是反对这个计划? 8. 用于一些固定搭配中。如: Who are you waiting for? 你在等谁? For example, Mr Green is a kind teacher. 比如,格林先生是一位心地善良的老师。
学习MCS-51单片机，如果用软件延时实现时钟，会接触到如下形式的延时子程序：delay:mov R5,#data1 d1:mov R6,#data2 d2:mov R7,#data3 d3:djnz R7,d3 djnz R6,d2 djnz R5,d1 Ret 其精确延时时间公式：t=（2*R5*R6*R7+3*R5*R6+3*R5+3）*T （“*”表示乘法，T表示一个机器周期的时间）近似延时时间公式：t=2*R5*R6*R7 *T 假如data1,data2,data3分别为50，40，248，并假定单片机晶振为12M，一个机器周期为10-6S，则10分钟后，时钟超前量超过1.11秒，24小时后时钟超前159.876秒（约2分40秒）。这都是data1,data2,data3三个数字造成的，精度比较差，建议C描述。
上表中e=-1的行（共11行）满足（2*R5*R6*R7+3*R5*R6+3*R5+3）=999，999 e=1的行（共2行）满足（2*R5*R6*R7+3*R5*R6+3*R5+3）=1，000，001 假如单片机晶振为12M，一个机器周期为10-6S，若要得到精确的延时一秒的子程序，则可以在之程序的Ret返回指令之前加一个机器周期为1的指令（比如nop指令）， data1,data2,data3选择e=-1的行。比如选择第一个e=-1行，则精确的延时一秒的子程序可以写成： delay:mov R5,#167 d1:mov R6,#171 d2:mov R7,#16 d3:djnz R7,d3 djnz R6,d2
djnz R5,d1 nop ；注意不要遗漏这一句 Ret 附： #include"iostReam.h" #include"math.h" int x=1,y=1,z=1,a,b,c,d,e(999989),f(0),g(0),i,j,k; void main() { foR(i=1;i<255;i++) { foR(j=1;j<255;j++) { foR(k=1;k<255;k++) { d=x*y*z*2+3*x*y+3*x+3-1000000; if(d==-1) { e=d;a=x;b=y;c=z; f++; cout<<"e="< We were both young when I first saw you 当我第一次看见你的时候，我们都还年轻 I close my eyes and the flashback starts 我闭上眼睛，一幕幕往事又在脑海中重现 I'm standing there on a balcony in summer air 我站在阳台上，空气里，浓浓的，是夏天的味道 See the lights, see the party, the ball gowns 看见灯火，看见热闹的舞会，华丽的盛装 See you make your way through the crowd 看见你穿越人群向我走来 And say hello 对我说“hello” little did I know 我却一无所知 That you were Romeo 当时我并不知道你是我的罗密欧 You were throwing pebbles 在你抛砖引玉向我示爱之后 And my daddy said “stay away from Juliet .” 我爸爸气急败坏地叫你离我远一点 And I was crying on the staircase 我却蜷坐在楼梯间里偷偷地抹眼泪 Begging you “please don't go ” 祈求你不要离开 And I said 我说 Romeo, take me somewhere we can be alone 罗密欧，带我走吧，一起去到一个我们可以相依相偎的地方I'll be waiting, all there's left to do is run 我一直在等待（这一天），只有逃离才能让我们摆脱束缚You'll be the prince and I'll be the princess （到那时）我们就可以像王子和公主一样（快乐地在一起）It's a love story, baby, just say yes 这是多么美好的爱情故事呀，亲爱的，对吧 So I sneak out to the garden to see you 于是，我偷偷摸摸地溜到小花园去见你 We keep quiet 'cause we're dead if they knew 我们压抑着声息，被他们发现我们就死定了 So close your eyes 那么，闭上你的双眼 Escape this town for a little while 逃避这个喧嚣的尘世，即使只有如此短暂的一刻 Oh, oh, oh Cause you were Romeo, 正因为你的出现 I was a scarlet letter 我的生命才有了如此鲜艳的光彩 And my daddy said “stay away from Juliet ” 我爸爸气急败坏地叫你离我远一点 But you were everything to me For的用法 1. 表示“当作、作为”。如: I like some bread and milk for breakfast. 我喜欢把面包和牛奶作为早餐。 What will we have for supper? 我们晚餐吃什么? 2. 表示理由或原因,意为“因为、由于”。如: Thank you for helping me with my English. 谢谢你帮我学习英语。 3. 表示动作的对象或接受者,意为“给……”、“对…… (而言)”。如: Let me pick it up for you. 让我为你捡起来。 Watching TV too much is bad for your health. 看电视太多有害于你的健康。 4. 表示时间、距离,意为“计、达”。如: I usually do the running for an hour in the morning. 我早晨通常跑步一小时。 We will stay there for two days. 我们将在那里逗留两天。 5. 表示去向、目的,意为“向、往、取、买”等。如: Let’s go for a walk. 我们出去散步吧。 I came here for my schoolbag.我来这儿取书包。 I paid twenty yuan for the dictionary. 我花了20元买这本词典。 6. 表示所属关系或用途,意为“为、适于……的”。如: It’s time for school. 到上学的时间了。 Here is a letter for you. 这儿有你的一封信。 7. 表示“支持、赞成”。如: Are you for this plan or against it? 你是支持还是反对这个计划? 8. 用于一些固定搭配中。如: Who are you waiting for? 你在等谁? For example, Mr Green is a kind teacher. 比如,格林先生是一位心地善良的老师。 尽管for 的用法较多，但记住常用的几个就可以了。 to的用法: 一：表示相对，针对 be strange (common, new, familiar, peculiar) to This injection will make you immune to infection. 二：表示对比，比较 1：以-ior结尾的形容词，后接介词to表示比较，如：superior ,inferior,prior,senior,junior 2: 一些本身就含有比较或比拟意思的形容词，如equal，similar，equivalent，analogous A is similar to B in many ways. Seasons in the Sun_中文歌词翻译_中英对照 goodbye to you my trusted friend.再见了,我忠实的朋友. we're known each other we're 9 or 10.我们从孩提时就已相识相知. together we've climb hills trees.我们一起爬山上树. learned of love abc.一起学习. skinned our hearts skinned our knees.我们心意相通,情如手足. goodbye my friend it's hard to die.再见了，朋友们,我本不愿离去. when all the birds are singing in the sky.当所有的鸟儿在天空歌唱. now the spring is in the air.空气中弥漫着春天的气息. pretty girls are everywhere.到处是漂亮女孩. think of me and i'll be there.想我,我便与你同在. we had joy,we had fun.我们曾如此快乐. we had seasons in the sun.也曾充满阳光. but the hills that we climbed were just seasons out of time.那些日子已然逝去. goodbye papa please pray for me.再见了爸爸,请为我祈祷. i was the black sheep of the family.我是家里的害群之马. u tried 2 teach me right from wrong.你费尽心思教我明辨是非. too much wine too much song.我却沉醉于歌酒狂欢. wonder how i got along.真不知那些日子是如何度过. goodbye papa is hard 2 die.再见了爸爸,我本不愿离去. when all the birds are singing in the sky.当所有的鸟儿在天空歌唱. now the spring in the air.空气中弥漫着春天的气息. little children everywhere.孩子们到处嬉戏. when u see them i'll be there.当你看见他们,我便会与你同在. we had joy,we had fun.我们曾如此快乐. we had seasons in the sun.也曾有阳光季节. but the wild the song.但昔日的歌酒狂欢. like the season has all gone.犹如季节更迭已消逝. we had joy,we had fun.我们曾如此快乐. we had seasons in the sun.也曾有阳光季节. but the wild the song.但昔日的歌酒狂欢. like the season has all gone.犹如季节更迭已消逝. goodbye michelle my little one.再见了蜜雪儿,我的贝比. u gave me love help me find the sun.你给我爱,给我希望. and every time that i was down.当我意志消沉时. of 1....的,属于 One of the legs of the table is broken. 桌子的一条腿坏了。 Mr.Brown is a friend of mine. 布朗先生是我的朋友。 2.用...做成的;由...制成 The house is of stone. 这房子是石建的。 3.含有...的;装有...的 4....之中的;...的成员 Of all the students in this class,Tom is the best. 在这个班级中,汤姆是最优秀的。 5.(表示同位) He came to New York at the age of ten. 他在十岁时来到纽约。 6.(表示宾格关系) He gave a lecture on the use of solar energy. 他就太阳能的利用作了一场讲演。 7.(表示主格关系) We waited for the arrival of the next bus. 我们等待下一班汽车的到来。 I have the complete works of Shakespeare. 我有莎士比亚全集。 8.来自...的;出自 He was a graduate of the University of Hawaii. 他是夏威夷大学的毕业生。 9.因为 Her son died of hepatitis. 她儿子因患肝炎而死。 10.在...方面 My aunt is hard of hearing. 我姑妈耳朵有点聋。 11.【美】(时间)在...之前 12.(表示具有某种性质) It is a matter of importance. 这是一件重要的事。 For 1.为,为了 They fought for national independence. 他们为民族独立而战。 This letter is for you. 这是你的信。 C程序中可使用不同类型的变量来进行延时设计。经实验测试，使用unsigned char类型具有比unsigned int更优化的代码，在使用时 应该使用unsigned char作为延时变量。以某晶振为12MHz的单片 机为例，晶振为12M H z即一个机器周期为1u s。一. 500ms延时子程序 程序: void delay500ms(void) { unsigned char i,j,k; for(i=15;i>0;i--) for(j=202;j>0;j--) for(k=81;k>0;k--); } 计算分析: 程序共有三层循环 一层循环n:R5*2 = 81*2 = 162us DJNZ 2us 二层循环m:R6*(n+3) = 202*165 = 33330us DJNZ 2us + R5赋值 1us = 3us 三层循环: R7*(m+3) = 15*33333 = 499995us DJNZ 2us + R6赋值 1us = 3us 循环外: 5us 子程序调用 2us + 子程序返回2us + R7赋值 1us = 5us 延时总时间 = 三层循环 + 循环外 = 499995+5 = 500000us =500ms 计算公式:延时时间=[(2*R5+3)*R6+3]*R7+5 二. 200ms延时子程序 程序: void delay200ms(void) { unsigned char i,j,k; for(i=5;i>0;i--) for(j=132;j>0;j--) for(k=150;k>0;k--); } 三. 10ms延时子程序 程序: void delay10ms(void) { unsigned char i,j,k; for(i=5;i>0;i--) for(j=4;j>0;j--) for(k=248;k>0;k--); Seasons?in?the?Sun_中文歌词翻译_中英对照 goodbye to you my trusted friend.再见了,我忠实的朋友. we're known each other we're 9 or 10.我们从孩提时就已相识相知. together we've climb hills trees.我们一起爬山上树. learned of love abc.一起学习. skinned our hearts skinned our knees.我们心意相通,情如手足. goodbye my friend it's hard to die.再见了，朋友们,我本不愿离去. when all the birds are singing in the sky.当所有的鸟儿在天空歌唱. now the spring is in the air.空气中弥漫着春天的气息. pretty girls are everywhere.到处是漂亮女孩. think of me and i'll be there.想我,我便与你同在. we had joy,we had fun.我们曾如此快乐. we had seasons in the sun.也曾充满阳光. but the hills that we climbed were just seasons out of time.那些日子已然逝去. goodbye papa please pray for me.再见了爸爸,请为我祈祷. i was the black sheep of the family.我是家里的害群之马. u tried 2 teach me right from wrong.你费尽心思教我明辨是非. too much wine too much song.我却沉醉于歌酒狂欢. wonder how i got along.真不知那些日子是如何度过. goodbye papa is hard 2 die.再见了爸爸,我本不愿离去. when all the birds are singing in the sky.当所有的鸟儿在天空歌唱. now the spring in the air.空气中弥漫着春天的气息. little children everywhere.孩子们到处嬉戏. when u see them i'll be there.当你看见他们,我便会与你同在. we had joy,we had fun.我们曾如此快乐. we had seasons in the sun.也曾有阳光季节. but the wild the song.但昔日的歌酒狂欢. like the season has all gone.犹如季节更迭已消逝. we had joy,we had fun.我们曾如此快乐. we had seasons in the sun.也曾有阳光季节. but the wild the song.但昔日的歌酒狂欢. like the season has all gone.犹如季节更迭已消逝. goodbye michelle my little one.再见了蜜雪儿,我的贝比. u gave me love help me find the sun.你给我爱,给我希望. and every time that i was down.当我意志消沉时. 1.表示各种“目的”，用for （1）What do you study English for 你为什么要学英语？ （2）went to france for holiday. 她到法国度假去了。 （3）These books are written for pupils. 这些书是为学生些的。 （4）hope for the best, prepare for the worst. 作最好的打算，作最坏的准备。 2．“对于”用for （1）She has a liking for painting. 她爱好绘画。 （2）She had a natural gift for teaching. 她对教学有天赋/ 3．表示“赞成、同情”，用for （1）Are you for the idea or against it 你是支持还是反对这个想法？ （2）He expresses sympathy for the common people.. 他表现了对普通老百姓的同情。 （3）I felt deeply sorry for my friend who was very ill. 4. 表示“因为，由于”（常有较活译法），用for （1）Thank you for coming. 谢谢你来。 （2）France is famous for its wines. 法国因酒而出名。 5．当事人对某事的主观看法，“对于（某人），对…来说”，（多和形容词连用），用介词to，不用for. （1）He said that money was not important to him. 他说钱对他并不重要。 （2）To her it was rather unusual. 对她来说这是相当不寻常的。 （3）They are cruel to animals. 他们对动物很残忍。 6．和fit, good, bad, useful, suitable 等形容词连用，表示“适宜，适合”，用for。（1）Some training will make them fit for the job. 经过一段训练，他们会胜任这项工作的。 （2）Exercises are good for health. 锻炼有益于健康。 （3）Smoking and drinking are bad for health. 抽烟喝酒对健康有害。 （4）You are not suited for the kind of work you are doing. 7. 表示不定式逻辑上的主语，可以用在主语、表语、状语、定语中。 （1）It would be best for you to write to him. （2） The simple thing is for him to resign at once. 一、关于单片机周期的几个概念 ●时钟周期 时钟周期也称为振荡周期，定义为时钟脉冲的倒数（可以这样来理解，时钟周期就是单片机外接晶振的倒数，例如12MHz的晶振，它的时间周期就是1/12 us），是计算机中最基本的、最小的时间单位。 在一个时钟周期内，CPU仅完成一个最基本的动作。 ●机器周期 完成一个基本操作所需要的时间称为机器周期。 以51为例,晶振12M，时钟周期(晶振周期)就是(1/12)μs，一个机器周期包 执行一条指令所需要的时间，一般由若干个机器周期组成。指令不同，所需的机器周期也不同。 对于一些简单的的单字节指令，在取指令周期中，指令取出到指令寄存器后，立即译码执行，不再需要其它的机器周期。对于一些比较复杂的指令，例如转移指令、乘法指令，则需要两个或者两个以上的机器周期。 1.指令含义 DJNZ：减1条件转移指令 这是一组把减1与条件转移两种功能结合在一起的指令，共2条。 DJNZ Rn，rel ；Rn←（Rn）-1 ；若（Rn）=0，则PC←（PC）+2 ；顺序执行 ；若（Rn）≠0，则PC←（PC）+2+rel，转移到rel所在位置DJNZ direct，rel ；direct←（direct）-1 ；若（direct）= 0，则PC←（PC）+3；顺序执行 ；若（direct）≠0，则PC←（PC）+3+rel，转移到rel 所在位置 2.DJNZ Rn,rel指令详解 例： MOV R7，#5 DEL:DJNZ R7,DEL; rel在本例中指标号DEL 1.单层循环 由上例可知，当Rn赋值为几，循环就执行几次，上例执行5次，因此本例执行的机器周期个数=1（MOV R7，#5）+2（DJNZ R7,DEL）×5=11，以12MHz的晶振为例，执行时间（延时时间）=机器周期个数×1μs=11μs，当设定立即数为0时，循环程序最多执行256次，即延时时间最多256μs。 2.双层循环 1）格式： DELL:MOV R7，#bb DELL1:MOV R6，#aa DELL2:DJNZ R6,DELL2; rel在本句中指标号DELL2 DJNZ R7,DELL1; rel在本句中指标号DELL1 注意：循环的格式，写错很容易变成死循环，格式中的Rn和标号可随意指定。 2）执行过程 Turn your face away 把你的脸转向这里 from the garish light of day Night-time sharpe ns 夜色渐浓 heighte ns each sen sati on 知觉萌动 Darkn ess stirs and wakes imag in ati on 冥冥黑暗引领想象出笼 Sile ntly the sen ses aba ndon their defe nces ... 寂静之中感觉幵始放纵 Slowly, gen tly ni ght un furls its sple ndour 夜晚显现魅力缓慢轻柔 Grasp it, sense it - tremulous and tender 抓住它感觉它 颤抖中带着温柔 tur n your thoughts away 把你的心转向这里 from cold, un feeli ng light 脱离那冰冷无情的光 and listen to the music of the night ... 尽情聆听这夜的乐章 Close your eyes and surre nder to your 闭上双眼尽情放纵 darkest dreams! 心灵深处的梦想 不要再看俗气的日光 you knew before! 全部主张! Close your eyes, 闭上双眼 let your spirit start to soar! 让你的灵魂去飞翔! And you'll live 你将拥有新的生活 as you've n ever lived before ... 在你从未生活过的地方 Softly, deftly 不知不觉中 music shall surro und you ... 音乐将你包容 Feel it, hear it, 去感受去聆听 clos ing in aro und you ... 让它进入你的心 Ope n up your mi nd 让你的思想翱翔 let your fan tasies unwind 为你的幻想松绑 in this dark ness which 在这黑暗之中 you know you cannot fight 你知道自己无力抵抗 1. 两者都可以引出间接宾语，但要根据不同的动词分别选用介词to 或for： (1) 在give, pass, hand, lend, send, tell, bring, show, pay, read, return, write, offer, teach, throw 等之后接介词to。 如： 请把那本字典递给我。 正：Please hand me that dictionary. 正：Please hand that dictionary to me. 她去年教我们的音乐。 正：She taught us music last year. 正：She taught music to us last year. (2) 在buy, make, get, order, cook, sing, fetch, play, find, paint, choose,prepare, spare 等之后用介词for 。如： 他为我们唱了首英语歌。 正：He sang us an English song. 正：He sang an English song for us. 请帮我把钥匙找到。 正：Please find me the keys. 正：Please find the keys for me. 能耽搁你几分钟吗(即你能为我抽出几分钟吗)? 正：Can you spare me a few minutes? 正：Can you spare a few minutes for me? 注：有的动词由于搭配和含义的不同，用介词to 或for 都是可能的。如： do sb a favou r do a favour for sb 帮某人的忙 do sb harnn= do harm to sb 对某人有害 for的用法： 1. 表示“当作、作为”。如: I like some bread and milk for breakfast. 我喜欢把面包和牛奶作为早餐。 What will we have for supper? 我们晚餐吃什么? 2. 表示理由或原因,意为“因为、由于”。如: Thank you for helping me with my English. 谢谢你帮我学习英语。 Thank you for your last letter. 谢谢你上次的来信。 Thank you for teaching us so well. 感谢你如此尽心地教我们。 3. 表示动作的对象或接受者,意为“给……”、“对…… (而言)”。如: Let me pick it up for you. 让我为你捡起来。 Watching TV too much is bad for your health. 看电视太多有害于你的健康。 4. 表示时间、距离,意为“计、达”。如: I usually do the running for an hour in the morning. 我早晨通常跑步一小时。 We will stay there for two days. 我们将在那里逗留两天。 5. 表示去向、目的,意为“向、往、取、买”等。如: Let’s go for a walk. 我们出去散步吧。 I came here for my schoolbag.我来这儿取书包。 I paid twenty yuan for the dictionary. 我花了20元买这本词典。 6. 表示所属关系或用途,意为“为、适于……的”。如: It’s time for school. 到上学的时间了。 Here is a letter for you. 这儿有你的一封信。 7. 表示“支持、赞成”。如: Are you for this plan or against it? 你是支持还是反对这个计划? 8. 用于一些固定搭配中。如: see you again It's been a long day without you my friend 没有老友你的陪伴日子真是漫长 And I'll tell you all about it when I see you again 与你重逢之时我会敞开心扉倾诉所有 We've come a long way from where we began 回头凝望我们携手走过漫长的旅程 Oh I'll tell you all about it when I see you again 与你重逢之时我会敞开心扉倾诉所有 When I see you again 与你重逢之时 Damn who knew all the planes we flew 谁会了解我们经历过怎样的旅程 Good things we've been through 谁会了解我们见证过怎样的美好 That I'll be standing right here 我都会在这里 Talking to you about another path 与你聊聊另一种选择的可能 I know we loved to hit the road and laugh 我懂我们都喜欢速度与激情 But something told me that it wouldn't last 但有个声音告诉我这美好并不会永恒 Had to switch up look at things different see the bigger picture 如何才能改变观点用更宏观的视野看这世界 Those were the days hard work forever pays 有付出的日子终有收获的时节 Now I see you in a better place 此刻我看到你走进更加美好的未来 Now I see you in a better place 此刻我看到你走进更加美好的未来 How could we not talk about family when family's all that we got?当家人已是我们唯一的牵绊时我们怎么能忘却最可贵的亲情Everything I went through you were standing there by my side 无论历经怎样的艰难坎坷总有你相伴陪我度过 And now you gonna be with me for the last ride 而今你将陪我走完这最后一段旅程 It's been a long day without you my friend 没有老友你的陪伴日子真是漫长 And I'll tell you all about it when I see you again 与你重逢之时我会敞开心扉倾诉所有 We've come a long way from where we began 加入收藏夹 主题： 介词试题It’s + 形容词 + of sb. to do sth.和It’s + 形容词 + for sb. to do sth.的用法区别。 内容： It's very nice___pictures for me. A.of you to draw B.for you to draw C.for you drawing C.of you drawing 提交人：杨天若时间：1/23/2008 20:5:54 主题：for 与of 的辨别 内容：It's very nice___pictures for me. A.of you to draw B.for you to draw C.for you drawing C.of you drawing 答：选A 解析：该题考查的句型It’s + 形容词+ of sb. to do sth.和It’s +形容词+ for sb. to do sth.的用法区别。 “It’s + 形容词+ to do sth.”中常用of或for引出不定式的行为者，究竟用of sb.还是用for sb.，取决于前面的形容词。 1) 若形容词是描述不定式行为者的性格、品质的，如kind，good，nice，right，wrong，clever，careless，polite，foolish等，用of sb. 例： It’s very kind of you to help me. 你能帮我，真好。 It’s clever of you to work out the maths problem. 你真聪明，解出了这道数学题。 2) 若形容词仅仅是描述事物，不是对不定式行为者的品格进行评价，用for sb.，这类形容词有difficult，easy，hard，important，dangerous，（im）possible等。例： It’s very dangerous for children to cross the busy street. 对孩子们来说，穿过繁忙的街道很危险。 It’s difficult for u s to finish the work. 对我们来说，完成这项工作很困难。 for 与of 的辨别方法： 用介词后面的代词作主语，用介词前边的形容词作表语，造个句子。如果道理上通顺用of，不通则用for. 如： You are nice.(通顺，所以应用of)。 He is hard.(人是困难的，不通，因此应用for.) 由此可知，该题的正确答案应该为A项。 提交人：f7_liyf 时间：1/24/2008 11:18:42lovestory歌词中英文对照
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