他花了半个小时修理这辆自行车half an hour the bike

We spend half an hour on the way.

设乐乐到姑妈家有x千米.
1/3*x+12+12*1/2=x
12+6=(1-1/3)x
18=2/3*x
x=18*3/2
x=27
答：乐乐到姑妈家有27千米.

路程÷速度＝时间
设小明速度x﹙km／h﹚小芳速度就是1.2x,列方程15／x－15／1.2x＝0.5
解x＝5﹙km／h﹚
小明速度5﹙km／h﹚小芳速度6﹙km／h﹚

半小时：两头同时烧.
一个小时十五分钟：
一根正常烧,一根两头烧.
在两头烧完的一刹那,把正常烧的那根的另一头也点燃.这根烧完后是45分钟.
在烧完后的一刹那,在把一根两头烧.合计一个小时十五分钟.

用一根香从两头同时点燃,烧完后就是半小时
用2根香,将一根从两头点燃,另一根从一头点燃,当一根烧完后,再把剩下那根从另一头点燃,烧完后就是45分钟

这个图很好画的,你自己画就可以了!
首先Rt△AED中,两直角边AD,DE的比为2：1,
那么在Rt△MNC中：（两种情况）
1.设MC=2x,NC=x,则MN=√[(2x)²+x²]
令√[(2x)²+x²]=1,解得x=√5/5,此时CM=2√5/5
2.设MC=x,NC=2x,则MN=√[x²+(2x)²]
令√[x²+(2x)²]=1,解得x=√5/5,此时CM=√5/5
答：CM的长度为2√5/5或√5/5.

不知道需要什么样解题格式,解题思路如下：
设乙1天完成量为1,则甲1天完成量为2.
甲、乙两工程队合作6天完成6X（1+2）=18,然后甲工程队单做3天完成3X2=6,所以工程总量为18+6=24.
(1)由以上知该县要求完成这项工程规定的时间是24/2=12天
(2)甲、乙两个工程队合作完成需要24/（1+2）=8天,共需要工程款8X（5+3）=64万元
所以该县准备的65万元工程工资款够用

surprise
lost
like

这样翻译要好些：
Half an hour passed,there came sound of footsteps,which told eveybody clearly,the boss arrived late.

设两人的速度分别为x,y千米/小时
(x+y)*20/60=3
(3-0.5x)=2(3-0.5y)
解得
y=5
x=4
甲的速度为4千米/小时,乙的速度为5千米/小时

会在玻璃底下凝结上好多小水珠.因为水温升高,水份蒸发变成水蒸汽,遇到较冷的玻璃便会液化,变成小水珠附在玻璃上.

It takes about half an hour to the railway station by subway?

It will put off for half an hour and I will be here to wait for you .

This morning I spent half an hour doing the cleaning

第一次相遇,甲乙共行了1个全程,甲行了1个4千米
第二次相遇,甲乙共行了3个全程,甲行了3个4千米,
同时甲行的还是1个全程多3千米,全程是
4×3－3＝9千米
两次相遇地点之间的距离是
9－4－3＝2千米

She spends half an hour reading newspaper everyday.

推导：规则是 两个图形有交点则相减 没有交点则相加
既然小学还没有负数,那么第一图形 正方形或圆形 是 1,2 或0,3相加
由第二个图形确定是 ,1,2相加 那么三角形就代表 5或4
由第四个图形确定 三角形是5 正方形是1 那 圆形就是2
5+2=7

(70-30)÷1/2=80千米/时

设距离为a
a/70-1=a/100+0.5
10a-700=7a+350
3a=1050
a=350
所以距离为350千米

1、65.4-（34又2/5+5.25）-14又3/4
=65.4-（34.4+5.25）-14.75
=65.4-34.4-5.25-14.75
=31-（5.25+14.75）
=31-20
=11
4、（11又1/9+9又1/11）÷（5/9+5/11）
=（100/9+100/11）÷(5/9+5/11)
=100*(1/9+1/11)÷5÷(1/9+1/11)
=100÷5
=20

158+262+138
375+219+381+225
5001－247－1021－232
（181+2564）+2719
378+44+114+242+222
276+228+353+219
(375+1034)+(966+125)
(2130+783+270)+1017
99+999+9999+99999
7755－(2187+755)
2214+638+286
3065－738－1065
899+344
2357－183－317－357
2365－1086－214
497－299
2370+1995
3999+498
1883－398
12×25
75×24
138×25×4
(13×125)×(3×8)
(12+24+80)×50
704×25
25×32×125
32×(25+125)
88×125
102×76
58×98
178×101－178
84×36+64×84
75×99+2×75
83×102－83×2
98×199
123×18－123×3+85×123
50×(34×4)×3
25×（24+16）
178×99+178
79×42+79+79×57
7300÷25÷4
8100÷4÷75
16800÷120
30100÷2100
32000÷400
49700÷700
1248÷24
3150÷15
4800÷25
21500÷125
附加题：
2356－（1356－721）
1235－（1780－1665）
75×27+19×2 5
31×870+13×310
4×(25×65+25×28)

书我的最爱
每个人都有自己的爱好.例如体育啦,健身啦、音乐啦、电脑、书法、绘画……真是多得数也数不过来啊.不过,我的爱好可能跟大家在太一样.我,喜欢收藏书,也喜欢读书,真有点爱不释手.
说到这里,很多人就会笑.你还是个小学生,怎么可能天天拿着书呢?其实,我也说不上为什么,书好像对我有一种强大的吸引力.书是磁铁,我是铁,天生就互相吸引.如果有一本书摆在我面前,我自己也控制不了,非要去翻一翻,看一看,要不然我脑袋整天都会想着寻那本书.如果拿上一本好书,我可以连续几个小时,一动也不动地在那里.书跟我之间,好像有一种缘份.我的阅读速度特别快,夸张一点说,简直是一目十行.往往刚刚买回来的书,一会儿就看完了.
爸爸、妈妈,当然也包括我自己,得不断地买新书.每天晚上临睡前,早起后,按照习惯,都要看一会儿书.
不过,我并不是什么书都看.比如像那种全是画儿,几乎没什么字的书我就不爱读.我觉得那类书无聊,浪费时间,弱智.我喜欢看长篇小说,还要带点儿神话色彩的,隔几页就有点儿插图最好；我更喜欢看童话和那些憧憬未来的科幻作品,它们能让我充满想象；偶尔我也看些作文指导之类的书.
瞧,爸爸又买新书回来了!

用了动作描写,写出了（或表达了）男人的坚强,也写出了他的痛苦.仅供参考,就这几点得分点,自己组织语句.

首先你要全身心的投入到做题的情境中,不要浮躁.我本人的习惯是先看问题再阅读,加以系统训练,相信会有成效的.另一个就是可能文章中有很多面生的单词,老师也教过我们,可以略过,结合上下文.英语阅读,就是要多看,可不是做题的时候才看哦,要多阅读相关英语短文,量变引起质变.
希望我的建议对你能有所帮助,愿你能学好英语.

o ,我们不用这种资料,帮不了.

一般步骤：
1. 除法转化乘法并化简
2. 去分母,
3.去括号
4.移项
5.合并同类项
6.系数化成一
7.检验.

Teacher we read half an hour every morning

Yesterday,when we were classing,a plane flie and circling about half hour.Then,students had widespread comment about it.Same one thought,where the plane came from and why staied here?which the plane belongde to,air service military ,a passenger plane or an enemy plane.But it was difficult to tell the exact answer.

耐心一点，没关系的

His schedule other than my half an hour late.

-2 对不?

层次划分一位有丰富教学经验的化学老师|----------偏正----------| |---------偏正-------| |----动宾---| |-偏正-| |---偏正---| |--偏正-|简答他讲的很透彻（主谓短语,主语部分是他讲的,谓语是透...

解题思路：设小王从A地到B地的骑车速度为x千米/小时．根据A到B地的距离与B到A地的距离相等列出方程．

设小王从A地到B地的骑车速度为x千米/小时．则
2x+（x+6）×（4-2-[1/2]-[1/6]）=4x，
解得 x=12．
答：小王从A地到B地的骑车速度为12千米/小时．

点评：
本题考点： 一元一次方程的应用．

考点点评： 本题考查了一元一次方程的应用．解题关键是要读懂题目的意思，根据题目给出的条件，找出合适的等量关系列出方程，再求解．

took him

不要担心,我有时候也这样.你有时候理解不了的话,静下心来深呼吸,对自己说我一定行,我的这种情况很多了,会很怀疑自己哦,加油吧,偶们一起努力吧.↖(^ω^)↗o(≥v≤)o~~好棒O(∩_∩)O哈!

夸张

看着那些小朋友玩得那么开心,他们无忧无虑地玩.几年前我也是这样,人长大了,烦恼也多了.想起那些烦恼我头就疼了.我真的不想长大.
我的学习成绩只是中上的,小考的时候我差点考不上.上了初中我发现自己越来越不喜欢学习了.妈妈常常说:"你怎么不努力学习,你怎样考高中啊,你初中就差点靠不上,你如果考不上,你以后的工作怎么办啊?你这初中文凭那有人要你,你又没有什么特长,你去干什么呢啊?现在读书才出息啊,孩子读书是为了你自己啊,不是为父母啊."是啊,现在不读书那有出人头地的一天啊,现在连有些大学生都没有工作啊.想起这个问题我心就烦啊.
刚上初中,一切都是那么地陌生啊,老师,学校,同学.一个学期就这样过去了,有很多同学我都不认识,我不知道怎么样去和他们沟通.上体育课的时候,有很多同学都在一起玩,我很想跟他们一起玩,可是我不知道怎么样和他们说.
前天,妈妈看了我的日记,让我很恼火,我去跟妈妈讲道理,可妈妈却说做父母的应该知道孩子的一切.可日记里都写了我的小秘密,让人知道了就象被人赤裸裸地看透了.我跟妈妈吵架了,这几我们都在冷战中.
我多么地想我一生中没有烦恼那该多好啊!可人不可能没有烦恼,就象在阳光普照下,也难免回出现短暂的阴云.其实烦恼并不可怕,关键是你怎么样对待它.从今以后,让我们一起处理烦恼,消除烦恼,让我们带着多彩的梦走向成熟!

Human and Nature
Nature,the environment which human beings live by,is magnificent and unique.There si only one earth with super living conditions in the universe.We should have cherished nature and preserved it.Conversely,however,we have been continually spoiling it,even to a shocking degree.Now let's see what we have dong.
Thousands of trees have been cut down per year,which has caused soil erosion.Hundreds of thousands of tons of CFCS have been left in the higher sky in the last decade which has led to the ozone layer leak above the South Pole that covers an area of that of the United States.Million tons of fuel containing nitrogen and sulphur have been consumed per year,which has eventually resulted in acid rain throughout the world.
Similarly,ecology has been affected as well.And considerable number of species have been extinct as the years go by many creatures which were common in the past are becoming less and less,even rare.The Tibet antelope,for instance,is a good example.Since the antelopes of Tibet have a part of fur on their body which can be made into a precious cape,driven by some lawless dealers many villagers killed antelopes excessively and shocking for the large suns of fortune.Because of this,the number of the antelopes of Tibet has sharply fallen from over one million to less than one hundred thousand.And what's more,the number has now decreased by 20 thousand per year.Qing Zang Platean,which was their homeland,is their tombs now.
This is how nature has suffered what we have done to it.However,nature and suffer any more.She lost her temper and could no longer possibly put up with humans.She gave humans harsh punishment,which she thought they deserved.The acid rain has caused the less of more than 100 billion dollars throughout the world per year.And because of desertisation,soil is becoming more and more barren.The soil of many planes is now until for growing plants.The air is less fresh,and a lot of people even get many stranger diseases.Those are all the punishment of nature to human's pollution.On the other hand,human being suffer a lot as well.
So it leads to a serious of questions--
Why can't we live harmoniously with nature?
Why can't we set a balance between human and nature?
Why can't we pay more attention to nature and try to reserve it?
Therefore,before we take immediate measures to do something,we should be aware of the fact that "Conquering the nature" will never be our goal,instead,we should take the nature as our intimate friend.Preserving nature is not only preserving our home,but the civilization of human community as well.

题目：1、扫叶庄与踏雪斋 或2、 尺有所短与寸有所长
体面的意思：颜面.薛雪失去体面是因为在这里指的是薛雪感觉叶桂治好了更夫的病,是自己的名医的威望扫地.（意思,我薛雪说了治不好,你叶桂却能治好.）
文中“扫叶庄”中的“扫叶”的大概意思是意思是说,他要扫掉叶桂的威风.
文中“踏雪斋”中的“踏雪”的大概意思是踏平薛雪的名望.
写出“尺有所短,寸有所长” 的含义.比喻各有长处,也各有短处,彼此都有可取之处.尺有所短也说明再厉害的人也会有不足之处. 寸有所长则是提醒人们要善于发现自己的有点,再笨也会有过人之处. 凡事没有绝对的“长”与“短”.

不难的,等量关系很简单,固定时间内,检票的人数与等候检票的+新增加的人数相等,无非是多设几个未知数而已.
设原来等候检票的旅客为a,旅客增加的速度为X,检票的速度为Y,至少开放Z个检票口.
30X+a=30Y
10X+a=2*10Y
5X+a≤Z*5Y
Z≥3·5
车站至少要同时开放4个检票口

It's important for us to keep on spend half an hour reading English every moring

小芳比小明早到半个小时
15/x-15/1.2x=1/2

One morning,Mr Li got up late,so he missed the first bus.He thought he was late for work.Half an hour later,the bus finally came,at last he got on.

匀速行驶说明牵引力等于阻力 故发动机的牵引力为1000N
功率 P=F*v=70/3.6*1000=19444W
注意速度换算成m/s

1. Why do you like to go to school by bike? 2. Because I can exercise
3. Do your dad spent half an hour reading? 4. I am considering invited Tom to my birthday party
5. My friend is to help me clean the Windows. 6. I want to help her learn English
7. I have nothing particular to do. 8. Why don't you go home? (two)
9. I'm afraid I can't go with you 10. Are you willing to join the English club?
11. Let's go fishing! 12. Are you free on Friday?
13. I'm tired of watching TV at home. 14. I don't know what to do.
15. The students feel very happy. 16. You at seven every morning is stem what ah?
17. We are ready for the party. 18. He is a park happy.
19. They eight o 'clock the first class. 20. Tell her to open the door.
And he gave me an opportunity to learn English. 22. We often go fishing on weekends.
23. In his English study very hard. 24. LiPing is looking for his pet dog?
25. Every day he school at seven o 'clock. 26. Four very.
27. My brother is at the school gate wait for me. 28. I want to improve my English.
29. We should engage in physical activity. 30. On Friday there will be a thunder storm.
31. Every night he will use two hours to finish my homework?
32. Teacher zhang is helping me with my English. 33. We have four lessons in the morning.

dance for half an hour
加油!不明白再问!

after school,i have half an hour to play basketball.