今年七月的一天,有三批学生到老师家,每批人数不等,没有单独一个人去的,三批人数的乘积正好等于这一天的日期,问这三批学生共

One possible version：
Dear Peter,
I read in a newspaper today that a “Learn Chinese, Sing Chinese Songs” Foreigners’ Talent Show will be held in Chongqing Television Station on May 18th. I know you are studying in Chongqing No.1 Middle School, and your Chinese is good. I believe this is a good stage where you can show your singing talent, and how well you’ve learned Chinese. If you would like to try, you will have to go to the TV station to sign up before the end of April. If there is anything I can do for you, I would be more than glad to help.
Yours, Li Hua

略

9999毫米 幼稚

翻译的这段话很像是信件或是留言条之类,如果是信件,用XXX代替人称了哈:
Dear XXX
To tell you a good news,there's a Talent Show will be held in Beijing Television(BTV) Station on July 18.I think you should attend it as this is a good chance for you to show your talent.If you would like to try,you'd better go to the BTV station to sign up before the end of June.If there is anything I can do for you,I would be more than glad to help.I believe you can get a good mark.Come on!
yours,
XXX

Dear sir/Madam,
I learned from the newspaper that your company needs an English secretary. I'm reaaly interested in this position and hope I can work for you.
I'm 18 years old and will be gratuating from Xinxing Foreign Languages School this July. I'm an excellent student, among the top 5 in my class of 50 students. I'm good at English, especially spoken English. I often use the computer and I type very fast. In my spare time, I read a lot. Poems are my favorite. I enjoy music very much, too. Being an active young person, I like sports and outside activities. Besides, I'm easy to get along with and I like to make friends.
I'm looking forward to your reply.
Sincerely yours,
Li Hua

Dear sir/Madam,
I learned from the newspaper that your company needs an English secretary.I'm really interested in this
position and hope I can work for you.
I'm 18 years old and will be graduating from Xinxing Foreign Languages School this July.I'm an excellent
student,among the top 5 in my class of 50 students.I'm good at English,especially spoken English.I often
use the computer and I type very fast.In my spare time,I read a lot.Poems are my favorite.I enjoy music
very much,too.Being an active young person,I like sports and outside activities.Besides,I'm easy to get
along with and I like to make friends.
I'm looking forward to your reply.
Yours sincerely,
Li Hua
答案不唯一

因为甲比乙多交3.3元.所以,只能是0.45×2+0.8×3＝3.3元.
所以,甲用电50+3=53度.乙用电50-2=48度.

还凉……35度呢……天上的云是H2O……
我这早上下了,现在还是热

Dear sir,
I learn from newspaper that your company needs an English secretary. I think I'm competented to meet the requirements.
I'm 17 and I will graduate from the Xinghua Language School in July. I'm outgoing, so I can communicate with others freely. I like reading newspapers and magazines about trade. In my spare time, I used to do some representative of business.
If you would like to know more about my ability, I can be available for an interview at any time convenient to you.
Yours, Li Hua

1． 大声朗读出来.识记单词的方法主要是掌握发音,因为绝大多数的单词是可以听音写出来,不规则的单词很少.可以这么说,如果你记住了单词的发音,再看过3遍,就可以拚出80%的单词,这一点也不夸张.一些同学没有体会到这一点,他们背单词的方法就是一本书、一叠纸和一根笔,狂练拼写.显然,这样做既枯燥又低效.记住,要背单词,第一的要决就是把它读出来,不管你的发音怎样,只要你知道那样的发音对应的是怎样的拼写就够了.
2． 结合语境（Context）.要真正的掌握单词,只有在具体的语境中才可能达到.李扬.克立兹疯狂英语学习法就一直强调：孤立背诵单词几乎是徒劳无功的!人和人交往的最基本单位是句子,而不是单词.一些同学跟我说,他们背了很多单词,但是做单词题目还是没信心.我想,他们存在的一个非常关键的问题就是,光背单词的中文释义,而忽视了单词使用的具体语境.
那有些人可能又会说,背中文释义已经够累了,再加上背例句,那岂不是更麻烦?事实上,并不是这样的.背例句远远要比单纯地记忆单词要容易的多.就好比说,第一次见到一个人,你要马上记住他的面容不大容易（至少对我来说很困难：））,那我们往往采取这样的办法：就是用心记住他的发型、服饰和一些相关的特征（比方说,他经常带一条花斑狗：））.这跟通过语境来掌握单词是一个道理：通过语句或者短语来记忆单词,是最有效也是最轻松的手段.
3．结合听磁带.听磁带的记忆方法,简单来说有这样的几个优点：首先,不管你在干什么,耳朵总是经常闲着,这时候就可以听听磁带,可以说对其他事件有相当好的兼容性；其次,可以大大提高学习效率；最后,不易疲劳.
具体的方法是这样的：先背书,背个三四分熟,这时候就可以通过反复的听磁带来强化记忆.现在,有的单词书配有磁带,有的没有；其实自己就可以录这样的磁带.我背俞敏洪的GRE词汇精选（97版）的时候,没有磁带,就自个儿录了六盘磁带：挑自己不熟的单词,念一遍、然后念中文释义,对于拼写不合规则的单词,再把拚写念一遍,中间再留一些空白以加强记忆,这样,一个单词差不多*秒钟就过去了.一面磁带可以念将近200个单词,也就是说,听半个小时的磁带,你就把200个单词又复习了一遍.这几盘磁带是我随身必备的物品,我几乎是走路听、坐车听、吃饭听、睡觉的时候还听.我同学很奇怪我每天没头没脑听的是些啥,就问我,我告诉他们是李扬·克立兹,他们拿过去听了听,居然还信了,一个说,没想到李扬·克立兹还出GRE词汇的磁带；另一个说,好像李扬·克立兹的发音不是很准?（我faint）
关于听磁带背单词,还要强调两点：一是一定要先背书,把书背个三四分熟再听磁带,这样才会有效果；二是这样的记忆方法可能使你对单词的发音非常熟悉,但对于单词的拼写不大敏感,所以一般过一个礼拜,就要坐下来,一边听磁带,一边看书,再一边把不熟悉的单词在纸上拼写出来.
4． 每天大剂量地记忆.有的同学觉得一天背个50个单词已经很不错了,但我要说,这还不够,一天至少要背100个.怎样的背法呢?每天抽出两个固定的时间段,每个大约一个半小时,专门进行词汇的记忆.这对于词汇基础较差的同学来说,是绝对有效的方法.因为背单词非常讲究一个周期,一天背50个,3000词的一本书就要背两个月,这就难免看了后面忘了前面；而如果你一天能背150个,20天就可以搞定它了.这两个时间段可以这样安排：第一个时间段专门背新词,第二个时间段则用来温习刚刚背的新词和定期需要复习的已经背过的单词.
5． 掌握常见词根词缀等构词元素.英语单词是很有章法的,跟我们汉字的造字法是一样.这里,套用我的一位朋友的话,英文单词是非常有美感的东西,用心体会,你会发现其中的乐趣的.这里随便举几个例子：
第一个单词,magniloquent,可能大家不太熟悉,但是如果知道magn(i) = big, great（大）、loqu = language（语言、话）、-ent是一个形容词后缀,那应该可以猜到这个词的意思：夸张的.
第二个单词,malodorous,其中的词根和词缀：mal = bad, evil（不好的）,odor 就是气味,还有-ous是形容词后缀,那它的意思就是"有臭味的",引申为"不合法的（illegal）".怎么样,是不是很有趣?就象我们见到这样一个汉字：孬,就知道是"不好"的意思一样.
就考研来说,需要掌握的常见词根词缀并不多,所以值得花时间做一下这个工作.具体的掌握方法其实也不难：不一定专门找一份词根词缀表来背,那是相当乏味的,只要在背单词的过程中,留意一些常见的词根词缀再用心记一下,保证下次在另一个单词中见到它时认识就可以了.
6． 把已学过的单词和生词联系起来.这是一个非常重要的扩充词汇的手段,也是巩固词汇记忆的重要手段.具体来说,有很多的单词可能形近、或者音近、或者义近,这样就容易产生混淆,而我们恰恰又可以通过把这些词汇放在一起,从而把他们真正记住并区分开.还是通过举例来说吧：
第一个单词,maim（v.使残废）,可以看出来,它和我们熟悉的main（主要的）形近.那我们就可以通过main 来联想maim,记住"主要的,使残废",就记住这个单词了.
第二个单词,reverie（幻想）,和revere（尊重）形近,也可以放在一起记忆：尊重幻想.
第三个单词,grate（v.磨碎,使人烦躁）,和单词great（伟大）音同, 就可以通过great 来联想grate,记住"伟大磨碎"就行了.
第四个单词,rein（n.缰绳,v.控制）,和rain（雨）音同,可以通过"雨中缰绳"来记忆.
7． 采用分割单词或者利用谐音来记忆,这就是我所谓的"邪门方法"了,也是背单词的乐趣之一.可能有些人对这种歪门邪道非常不屑,但是为了能记住单词,也就"无所不用其极"了,这也可以算"黑猫白猫"理论的一个推论吧.
单词的分割,就是不管它是不是词缀,如果把它拆开容易记,那当然拆它没商量了.还是举几个例子比较容易理
第一个单词,sloop（小帆船）,可以拆成s + loop ,可以这样记 small（小）+ loop（圈） = sloop（小帆船）.
第二个单词：kinetic（运动的）,可以拆分成 kin（亲戚） + net（网） + ic ,可以这样记"亲网运动的".呵呵,是不是有些无厘头?不过关键问题是,你记住了这个单词.
第三个单词：leaven（发酵剂,影响力）,可以拆分成 leave + n ,记住"离开n 就影响发酵",就记住这个单词了.
第四个单词：incandescent（白热的,热烈的）,可以拆分成 in（不）+ can（能）+ descent （降下）.那就可以这样记：不能降温下来--可见白热化的程度喽.
谐音记忆单词,也是比较极端的技巧.这里也通过举例来说明吧：
第一个单词,gollop（v. & n.大口吞咽）,它的发音很容易让人联想到"高乐高",哈哈,跟"大口吞咽"还算搭得上边.是不是很有趣?
第二个单词,pariah（贱民,被社会遗弃者）,发音象"泼赖",意思也差不多.记起来是不是很容易?
第三个单词,pectoral（a.胸部的,胸的）,谐音是"拍可疼呢",好记吧.
这里介绍的邪门方法,完全是因人而异的.每个人见到一个单词的联想可能千差万别,你要做的就是怎样用自己的方法来达到记住单词的目的.
还有一点非常重要,需要提醒大家：以上提到的前5种方法是背单词的基本方法,而6、7则是辅助记忆的方法.所以千万不要本末倒置,一心想着走旁门左道,这样可能导致严重的后果,具体我就不说了,你要是试过的话,别忘了告诉我：）.
好了,关于背单词的心得,我已经和盘托出了.最后要说的是：这样记住的单词仍然很容易遗忘,所以要和它们保持亲密,很重要的一点就是：经常去接触它们,就是要经常翻词汇书、做词汇练习和阅读练习.套用一句广告词,我们的目标是：没有生词!

One possible version:
you will have a visit in Wuhan, a major industrial , financial, and educational complex in central China, located at the joint of the Han and Yangtze rivers with its railway and inland and airport which makes it accessible in all directions.
Standing on the top of the Yellow Crane Tower, dating back to hundreds of years which is regarded as one of the landmarks of Wuhan, you can never refuse a strong itch to enjoy a real feast for its natural beauty. The waters of Yangtze River flowing lazily, accompanied by the wonderful music given out by a set of fantastic unearthed instruments, ,Chime Bells with a history of more than 1000 years which is also one of the seventh wonders in the world will come to your eyes,.
Wandering in the Hanzheng pavement in downtown in the July sunshine, you are to stop ,not to wipe your sweat on your forehead, but to have a taste of Hot and dry noodles (our local specialty)or just to do some shopping. It is really a place where amazing happens. Can you feel the urge to have a visit as soon as possible?

略

Beijing TV is going to hold a competition on "learn Chinese,sing Chinese songs" between foreigners this July. you are learning Chinese now, so you could have a try. The date of competition is on July,18th, and the deadline for signing up is June,30th. If you want to sign up, go to Beijing TV. You can know and learn more about Chinese through this activity.

July of this yea

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