三个小时时间应该如何合理分配

The flight takes 3 hours from ChangChun to Jinan.
From ChangChun to Jinan,the flight takes 3 hours.
The flight from ChangChun to Jinan takes 3 hours.
在这里 "take to do" 没意思
假如可说,"How long do you take to do your homework?"

上山的速度是7.2/3
下山的速度是7.2/2
求快多少用减法：7.2/2－7.2/3＝7.2×(3－2)/6＝1.2(千米/小时)
所以下山时的速度比上山时快1.2千米/小时.

我跟楼上的不一样啊!一、1：go fishing 2:spend 3 hours 3:read and writ 4:A beautiful day 5:buy this book for you 6:come back 7:wear a yellow hat 8:practice English 9:Watch video 二、1：sixth 2：third 3：twelfth 4：pens 三、BCB

允许修辞吗?模9貌似有修辞了
Dear sir(不习惯就换成headmaster)
Thanks for your direction in recent years both in english teaching and learning.As is clearly shown in recent quiz,with the help of your guidance,our competence in tests has dramatically improved.
However,while there is an advantage,there is an short coming ^ ^.As far as we are concerned,some measures taken by our english teahcer seem to be unperfect(最好不要换词),though ,faced with too much trouble caused by us,naughty guys,our teacher can be so tired.we all can understand .but she(he?)left us so much homework to do that there is no time left for us to review our mathematics and so on.as you know,the chinese colleage examtion test ,so called Gaokao needs not only our skills in english multiple choice but also in Math problem(s) solving.
Striking a proper balance between work and rest tends to be more and more popular,may be, to be spacific,more pratical. that is ,proper quantity of daily work should match how we performed in tests.
You got understand what that ought to be if you wanna keep all sand in you hands with a fist clenched tightly.It`s the same with us.
That is what we,all students in class xx(自己填) wanna say about.
yours sincerely
blablabla ^ ^
30 .June.2013

三个小时时差
a three hours"equation of time
问题补充:意思一样的

i (spend ) three hours ( on) my homework every day
希望能够帮到楼主

我们班可谓是人才济济,强手如云.在这个班级里,我算是一个名副其实的“丑小鸭”了.
我羡慕范潇龙雄辩的口才,老师刚提问他就举手；我羡慕陈燕婷娟秀的字迹；我羡慕陈瑜的文才,写起作文来一挥而就,下笔如有神；我羡慕苏亦昕流利的英语,说起英语来滔滔不决,犹如一个小老外……我羡慕别人也怨自己无能.
或许是渐渐没了信心,在班里,我几乎到了“默默无闻”的地步.有一会,一个同学借我一本书,这本书中有一句话对我深有感悟“我愿用自己的努力,编织一片片羽毛,使自己变成一只美丽的天鹅.”是啊,作者能努力使自己成天鹅,那我不能拥有自己的“闪光点 ”吗?
之后,我开始发现自己的长处.每天我都练习写毛笔字,有时作业一多,时间也往后移,弄得我很晚才能睡,但我始终坚持练习.每回,老师一布置预习的作业,我就在语文书上左标右写,把一本好好的书写得满满的……经过许久的努力,我的字在班上数一数二,上课,老师一提问,我就举手……我发现了自己的“闪光点”,渐渐走出了低谷,下课和同学们嬉戏,打成一片.
但我要感谢那句话,正是那句话,使我学会了争取,努力.即便我这只“丑小鸭”无法在春天变成天鹅,但我愿用自己的努力,让自己飞上蓝天.
感谢那句话,感谢那句令我终生难忘的话.你是否觉得自己处处不如别人,那你需要发现,发现自己的优点.

1地为南京,2地为新加坡,3地为悉尼,4地为纽约.（判断思路如第四题）
第四题思路,纬度越高摆动范围越大（因地转偏向越明显）,南半球向左偏,北半向右偏.
第五题思路,就算没有题干的前提下,这类题可直接从选项中找答案,北极科考在北半球夏季,东北春小麦在夏末秋初收,田纳西处亚热带季风性湿润气候,夏季为雨季,即A/C/D三个选项反应季节相同,而3地应该是悉尼,它正午太阳高度最大应是冬至日时,B选项应改为3地太阳从东南升西南落.
第六题是否属同一天的问题关键就看180度经线,如题北京时间1月21日0时30分,则1月21日范围从112.5E（0时经线）至180度经线为1月21日范围.

3 hours in advance

不对,用in,in用于将来时,表示将来的一段时间,after大多用于过去时.要熟记

two hours and a half.
half an hour.
three fifths of an hour.

机械能守恒
系统减少的重力势能=系统增加的动能
设所求A端球的速度大小为V
因两个球角速度W=V/R 相等,故B端球的速度大小为(OB/OA)V=2V
减少的重力势能Ep=mg(2/3)L-mg(1/3)L=mgL/3
增加的动能Ek=(1/2)mV^2+(1/2)m(2V)^2=(5/2)mV^2
mgL/3=(5/2)mV^2
V=根号(2gL/15)

1/(1/3-1/5)=15/2
需要7个半小时
但如果要是智力问答的话可能是永远装不满因为妈妈不让浪费水!

The big fire lasted for less than three hours.

祝你开心.

一半

西十区,就是西经157.5°至西经142.5°的地区.具体地,美国的阿拉斯加、夏威夷岛.

你好

我通常花三个小时左右做作业
I usually spend three hours doing my homework
或者
It usually takes me three hours to do my homework.

若有疑问及时追问,满意敬请采纳,O(∩_∩)O谢谢~~

1,That boy made a face to the back of the teacher.
2,It took her three hours to put her house in order.
3,He always makes up for his mistake.
4,She didn't tell me when the traffic accident occured.
5,Mother told me to be back as early as possible.

The students have two English classes per week,and it totally cost three hours.

一般而言,用英语不是这样来形容资金来源的,但是它可以用不同字眼表达出同样意思.而且这里可能是要说明一个企业的资金来源有那些渠道.
1.“For SME’s,the funding sources could be classified as ‘internal’ or ‘external’.”
2.“The financing channels of an SME could either be from internal or from external sources.”
SME 就是中小企业的意思； 而融资或者资金来源、渠道在金融业都可以称为：funding,financing,funding/financing sources/channels,等等.具体看应用而定.

It takes ,to
句型：It takes sb 时间+ to do sth.
花某人多少时间做某事

第一篇：My Family
I have a big family.There are four people in my family.They are my parents my sister and me.My parents hobby are watching TV after supper.My sister likes reading very much.And my hobby is playing computer.I love my family very much.
第二篇：My Family's Busy Day
Today is Sunday.My father is washing his car in the garden.My mother is cooking in the kitchen.I'm cleaning the room.It is my family's busy day.
第三篇：
Dear ***(Tonny)
I get up at 6:30 on weekdays.At 7:30,I have breakfast.The classes are begin from 7:50 to 11:50.I have lunch at home at about 12:00.
In the afternoon,I go to school on foot.I have four classes in the afternoon.And get home at about 7:00.I have supper at 7:30 and go to bed at 10:00.
The best wishes!
Yours *****(Peter)
第四篇：Near My Home
My home is in the city center.There is a supermaket behind my home.My home is across from the bank.The post office and the restaurant near the bank.

是的
2010年的英语专业高年级阶段统测（TEM8）定于2010年3月6日（星期六）上午
八点半开始 考三个小时

(1)去掉“左右”.
(2)“夸耀”改为“夸奖”.
(3)去掉“十分”.
(4)“大雨倾盆”改为“晴朗”.

3×（1/15 + 1/10）=9/20
运走这堆沙子的20分之9

应为菩萨的手势是ok,也就是菩萨原谅小明了!

1：X=50+70+(50+70)(5-3)*3
2:Y=(50+70)(5-3)

假设甲乙的速度分别是X/Y
根据题意得到：
①3X/3Y=2/3所以3X=2Y
②3Y-3X=36*2所以Y=72,X=48

甲比乙少走了36×2=72千米,然后路程比试2比3,那么速度比也是2比3,三个小时,那么甲每小时比乙少走了24千米,用简单计算就可以算出甲是48千米每小时,乙是72

与东经120度北纬30度相对的是西经60度,南纬30度.假如三个小时到达那里的话到达时间为当地13时,那么在家时是晚上10点.两地相差180度的 经度位置,时差为12小时,晚上10点出发,经历3小时在加上12小时的时差,正好当地时间13时.

18×2÷（3-2）=36千米
36×2=72千米
36×3=108千米

甲速度：1/10÷2=1/20
乙速度：（1/2-1/10)÷3=2/15
(1-1/2)÷(1/20+2/15)=30/11小时

路程=15*4=60km 返回的速度=60/3=20km/h

一般表盘中三个小表盘分别是：秒针、30分钟指针和1/10秒针.有的还有指示年份的和气温的.不过一般都是前三种.大针改为计时针,30分钟指针是大针走一圈他走一小格,最多记30分钟；1/10秒针为的是精确计时用得.估计你的那个是秒针吧,要不是写下你表的牌子和型号 我在帮你看看

还要2.25个小时.
假设甲每小时完成量为X,乙每小时完成量为Y.总工作量是一定的,因此有：
5X+3Y=总工作量=9Y+3X
得出：X=3Y 总工作量为 5X+3Y=18Y
甲单独做了3小时共完成 3X,剩余量为：18Y-3X=18Y-9Y=9Y；
甲乙一起工作每小时完成量为：X+Y=4Y
还需时间为 9Y/4Y=9/4=2.25小时.

It must be at least 3 hours later,my parents finally knocked the door of this dark cabin.
翻译的应该还算准确吧,但是好像我觉得我翻的意境上还不算好.
或者说finally knocked the door of this cabin filled with darkness?
楼主看着办吧哈哈

3×（X+Y）

有人统计过十三经（《易经》、《尚书、《论语》、《孟子》等13部典籍）,全部字数为589283个字,其中不相同的单字数为6544个字.一般文化人在三个小时内能写二千字的可能性不大!

I spent three hours doing my homework.

1、75：1 150：2 225：3 300：4 375：5
2、比值都是75,这个比值表示这辆汽车每小时行驶的路程,也就是这辆汽车的速度.
3、表中的路程和行驶时间成正比例.
因为,路程/行驶时间=速度（一定）,所以,表中的路程和行驶时间成正比例.

甲乙两车分别从A,B两地同时相对开出,经4小时相遇,相遇后各自继续前进,又经过三个小时,甲车到达B地,乙车离A地还有70千米,求A、B两地相距多少千米?
70÷（1-3/4）
=70÷1/4
=280千米

您的问题很简单.百度知道很高兴帮助您解决您提出的问题.
原句：许多同学每晚要做三个小时的家庭作业.他们没有时间看电视.
翻译：Many students will do three hours of homework every evening,they have no time to watch TV
每个人都该对老年人有好：
Everyone should be friendly to the elderly
百度知道永远给您最专业的英语翻译.

设A、B、C三辆车的速度分别为Va、Vb、Vc,花费时间为t.有题意可得,Va*（3+3）=Vc*3,
Vb*（1.5+6）=Vc*6（即所走时间乘以速度,得出的路程相等,时间都换算成小时）,由上面两个等式可得Va/Vb=5/8；
Va（t+1.5）=Vb*t,将Va、Vb的比例公式代入得t=2.5,即B追上A花费了2.5小时.

A和B 补语今天

Dream-like three hours

第一天早晨老鹰是从东边飞到西边的,第二天早晨太阳是由东边升起,太阳光刺到了老鹰的眼睛,老鹰要腾出一只翅膀来遮住眼睛 所以会比第一天多飞了一个半小时

1,The children have been watching TV for 3 hours
2,Yesterday I watched TV for 1 hour
3,How long did you sleep last night

for another three

温差60度,水量3吨,总热量：18万大卡.
每小时热量：6万大卡.
锅炉效率50%计算,锅炉出力：12万大卡/小时,140KW.