最新五年级上册数学公式汇总

2022-03-24 20:39:21   文档大全网     [ 字体: ] [ 阅读: ]

#文档大全网# 导语】以下是®文档大全网的小编为您整理的《最新五年级上册数学公式汇总》,欢迎阅读!
上册,公式,汇总,年级,数学




注:请同学们认真背诵这些公式,只要把公式都掌握好,你就一定能学好“多边形的面积”这部分知识!

五年上册数学公式汇总

面积公式

正方形的周长=边长×4 1

边长=正方形的周长÷4

面积字母公式 C=4a a=C÷4 S=a2 C=2a+b a =C÷2-b b =C÷2- a S=ab a= S÷b b= S÷a S=ah a=S÷h h =S÷a S=ah÷2 a=S×2÷h h =S×2÷a S=a+bh÷2

正方形的面积=边长×边长 长方形的周长=(长+宽)×2 1 =长方形的周长÷2 - 2 =长方形的周长÷2 - 长方形的面积= 长×宽 1 =长方形的面积÷宽 2 =长方形的面积÷长 平行四边形的面积=底×高

1 ※底=平行四边形的面积÷ 2 ※高=平行四边形的面积÷底 三角形的面积=底×高÷2 1 2

※底=三角形的面积×2÷ ※高=三角形的面积×2÷

梯形的面积=(上底+下底)×高÷2

1 ※高=梯形的面积×2÷(上底+下底) h =S×2÷(a+b 2 ※上底=梯形的面积×2÷高-下底 3 ※下底=梯形的面积×2÷高-上底

a =S×2÷h-b b =S×2÷h- a






初二英语年级Unit 8 Section B 2b 参考译文

Dear Miss Li, 亲爱的李小姐:

I'd like to thank you for giving money to Animal Helpers. I'm sure you know that this group was set up to help disabled people like me. You helped to make it possible for me to have Lucky. Lucky makes a big difference to my life. Let me tell you my story.

我想感谢你给动物帮手”捐款。我确信你知道这个组织建立起来是为了帮助像我这样的残疾人的。有了你的帮助我才有可能拥有“幸运儿”。“幸运儿”对我的生活产生了很大的影响。让我来告诉你我的故事。

What would it be like to be blind or deaf? Or imagine you can't walk or use your hands easily. Most people would never think about this, but many people have these difficulties. I can't use my arms or legs well, so normal things like answering the telephone, opening and closing doors, or carrying things are difficult for me. Then one day last year, a friend of mine helped me out. She talked to Animal Helpers about getting me a special trained dog. She also thought a dog might cheer me up. I love animals and I was excited about the idea of having a dog.

又瞎又聋会是怎么样呢?或者想象一下你不能走或自如地用你的手。大多数人从来没有考虑过这一点,但是许多人有这样的困难。我不能自如地使用自己的胳膊和腿,因此,一些像接电话,开关门,搬东西这些平常的事对我来说都很困难。后来,去年的一天,我的一位朋友帮我摆脱了困境。她与“动物帮手”组织联系,试图给我找一只经过特殊训练的狗。她也认为一只狗可能会使我振作起来。我喜爱动物,并且我对拥有一只狗的主意感到很兴奋。

After six months of training with a dog at Animal Helpers, I was able to bring him home. My dog's name is Lucky---a good name for him because I feel very lucky to have him. You see, I'm only able to have a “dog helper” because of your kindness! Lucky is very clever and

understands many English words. He can understand me when I give him orders. For example, I say, “Lucky!” Get my book,” and he does it at once.

动物帮手”那里,我与一只狗在一起经过六个月的训练之后,我能够把他带回家了。我的狗的名字叫“幸运儿”——对他来说这是个很好的名字,因为我觉得拥有他真的很幸运。你看,正是因为你的仁慈我才能拥有一支“导盲犬”“幸运儿”很聪明,能听懂很多的英语单词。当我给他下命令时,他能听懂我说的话。例如,我说“幸运儿',把我的书拿来”,他会马上做到。

Lucky is a fantastic dog. I'll send you a photo of him if you like, and I could show you how he helps me. Thank you again for changing my life.

“幸运儿”是一只神奇的狗。如果你喜欢,我寄一张他的照片给你吧,以后我会让你看看他是如何帮助我的。再次感谢你改变了我的生活。

Best wishes, 最美好的祝福,






本文来源:https://www.wddqxz.cn/a3cc8265e209581b6bd97f19227916888586b94a.html

相关推荐