"我是红星中学9年级1班的一名学生"用英语怎么说？

（1）丙的为 360°*30%=108°
丁的为 360°*20%=72°
（2）总人数为 250÷（120°÷360°）=750
乙的人数为 750×（60°÷360°）=125
丙的人数为750×30%=225
丁的人数为750×20%=150
（3）人数都知道了,图就自己话吧.

My name is Li Hua is a female, 16 years old. Red Star high school in one (1) classes. I look is not high, but students say I am very cute. I am honest, brave, smart. I better language and math, but learning English difficult. But you study hard and you believe you can make progress. I love music, good length to play the piano, good at communicating with others. I also like to make friends, I want you to be my friend.

（1）无风时，电压表并联在导线上，故测量结果为0V；
此时电路的中电流I=[U
R1+R2=
3V/50Ω]=0.06A．
（2）当金属丝滑到最左端时，电路结构没变，电压表测R₂两端的电压，
由欧姆定律得：U=IR₂=0.06A×30Ω=1.8V
答：（1）电压表中读数为0V，电流为0.06A；（2）电压表的读数为1.8V．

Dear Jack,
I’m Li Ming, Chairman of the students’ Union of Hongxing Middle School. It’s great to hear that you are going to teach in our school next semester/term.
I was asked to write to you to recommend Liu Jia, a Senior 3 student of 18, to be your assistant. Liu Jia is a friendly, active and optimistic girl. She is also a smart girl who can use the computer skillfully and has a gift for communicating with others. What’s more, she is one of the top ten students in our school, and her spoken English is extremely excellent. I’m sure she can be helpful in your work and life in China.
If you have any questions about it, please contact me.
I’m looking forward to your coming.
Yours，
Li Ming

解题思路：根据“本金×（1+年利率）=本息和”作为相等关系列方程求解即可．注意去年存的本金为[2000（1+x%）-1000]元．注意根据实际意义进行值的取舍．

设一年定期存款的年利率为x%，依题意列方程，得
[2000（1+x%）-1000]（1+x%）=1155
（1000+2000x%）（1+x%）=1155
1000+20x+10x+0.2x²=1155
0.2x²+30x-155=0
x²+150x-775=0
（x-5）（x+155）=0
x₁=5，x₂=-155（舍去）
答：一年定期存款的年利率为5%．

点评：
本题考点： 一元二次方程的应用．

考点点评： 找到关键描述语，找到等量关系准确的列出方程是解决问题的关键．本题的等量关系是：本金×（1+年利率）=本息和．

Hello, Peter ! How are you going with everything ? I am writing to talk with you about our oral English class by a foreigner. Some of my classmates think it very necessary for us to have such an oral English class because it can improve our oral English . Besides we can learn more about foreign cultures. However, some of us hold the disagreement and they think our studying time so limited that we don not need an oral English class. What's more, we don't need oral grades when taking college entrance examinations. So having oral English class is a waste of time .What do you think of it ? Please write to me soon.
Yours.
Lihua.

我凑合了三种,1,依题意把学生分成9份,1080/9=120人,女生4份,120＊4＝480人,男生1080－480＝600人.2,把男生看成未知数X,则女生为0.8X.列式为:0.8X+X=1080解出等于600人女生等于480人.3,把男生女生分别设为Y.X.列式为：X+Y=1080 X=5/4Y.解出X=600Y=480

It's raining really heavily today, the whole road is flooded by rain water. the students are in the school bus on the way to school when the bus broke down. they got down and started to puch the bus until the bus can be started. Happily, the students got up the bus again to go to school

设旗杆高为X,则有tan30°=(x-1.5)/15
解得X=15tan30°+1.5=(15√3/3)+1.5

1(1) 若四个班的同学没有进行交流,且均以为花色仅受一对等位基因控制,则__一__班和__二__班对显隐性的判断刚好相反.（由于一班红色杂交出现分离,断定红色为显性,二班蓝色杂交出现分离,断定蓝色为显性,所以矛盾）
①A+A×A+A ②A+A×A+a （由于一班亲本都是红花,又知道A+和a都决定红色,而且后代出现蓝色AA或者Aa所以亲本可能是A+A或者A+a) 不能(因为A+A×A+A ②A+A×A+a 两种情况的后代蓝红之比都是1:3,)
（2）Aa1和Aa2 红：蓝=1:0（全为红花） 二 假说-演绎

解题思路：（1）调查学生总数=0.5小时的人数÷0.5小时的学生数所占百分比，扇形圆心角=360°×百分比，求出读书1.5小数的人数，再补图即可；
（2）用50个学生的总读书时间÷50=本次调查中学生参加读书的平均时间，再与1小时比较大小即可；
（3）该学生每天读书1小时的概率=[读书1小时的学生数/调查的学生总数]，每天读书1小时的人数=1000×每天读书1小时的概率．

（1）10÷20%=50（人），
360°×40%=144°，
50×24%=12（人），如图所示：

（2）0.5×10+1×20+12×1.5+2×8）÷50=1.18（小时），
∵1.18＞1，
∴本次调查中学生参加读书的平均时间符合要求；

（3）概率=[20/50]=[2/5]，
1000×[2/5]=400（人）．

点评：
本题考点： 频数（率）分布直方图；用样本估计总体；扇形统计图．

考点点评： 此题主要考查了频数分布直方图，扇形图，用样本估计总体，关键是同学们要能从统计图中读出正确信息．

One possible version:
My parents and I made a tour to Xian during the holiday. Instead of having a travel agency arrange our accommodation, we booked the train tickets and hotel room on the Internet by ourselves. During our tour in Xian, we went to many places of interest, took lots of pictures, and learned about the history of Xian. No tourist will miss the local food in Xian, nor will we. We enjoyed typical local foods, which tasted nice. After I returned, I couldn’t wait to share the photos and experiences with my classmates. The trip to Xian has become a happy memory to me.:

Last week , I received an exchange student Mike from the US. The first day, I went to pick him up at the Capital Airport and we chatted happily along the way. In order to get him to know Chinese culture, I prepared a series of activities. For example, on the second day, we paid a visit to the famous Maoer Hutong, where we had an interesting rickshaw tour. Mike felt very excited about the driver’s vivid introduction to the history of Hutongs. The following day, I took him to MeiLanfang Grand Theatre to watch Beijing Opera. Although he could understand few words, he was still amazed to see the colorful costumes and the unique way of performing. When it was time for him to return to the US, I sent him some gifts with Chinese elements, such as a Beijing Opera mask and a Chinese knot. He was very grateful for what I had done and said he was really impressed by the diversified Chinese culture.
From this experience, I felt proud of being a Chinese and felt it my duty to introduce Chinese culture to the world.  

Monday，October 28 Fine
This morning, I went to school by bicycle as usual. As I was listening to my favourite music with a headphone on my head, I didn’t notice a car parked on the roadside. I scratched the car and left a scar on it. Thinking that I would have classes, I left a note with my name and address to let the driver know what happened.
Later in the afternoon, while we were having a class meeting, our headmaster brought a stranger to our class. He was the car owner. He explained to the class the whole story and praised me. Both my teacher and classmates were impressed and proud of my honesty. I think honesty should be valued most.


试题分析：这是一篇看图作文，骑自行车上学路上发生的一件事情。要求用日记的形式记录下来，写作时要看清图画表达的内容，也要适当添加些内容，使文章看起来更充实，要组成一篇通顺连贯的短文。需要注意紧扣文章主题，给出的要点都需要包括，缺一不可。写作时注意准确运用时态，上下文意思连贯，符合逻辑关系，一定要契合给出的开头，不能出现文章脱节问题。尽量使用自己熟悉的单词句式，同时也要注意使用高级词汇和高级句型使文章显得更有档次。
【亮点说明】. As I was listening to my favourite music with a headphone on my head, I didn’t notice a car parked on the roadside.这句话用了时间状语从句， Thinking that I would have classes, I left a note with my name and address to let the driver know what happened.这句话用了现在分词做状语和宾语从句， while we were having a class meeting, our headmaster brought a stranger to our class. 这句话也是用了状语从句。

解题思路：根据“本金×（1+年利率）=本息和”作为相等关系列方程求解即可．注意去年存的本金为[2000（1+x%）-1000]元．注意根据实际意义进行值的取舍．

设一年定期存款的年利率为x%，依题意列方程，得
[2000（1+x%）-1000]（1+x%）=1155
（1000+2000x%）（1+x%）=1155
1000+20x+10x+0.2x²=1155
0.2x²+30x-155=0
x²+150x-775=0
（x-5）（x+155）=0
x₁=5，x₂=-155（舍去）
答：一年定期存款的年利率为5%．

点评：
本题考点： 一元二次方程的应用．

考点点评： 找到关键描述语，找到等量关系准确的列出方程是解决问题的关键．本题的等量关系是：本金×（1+年利率）=本息和．

One possible version:
My Special Gift for Grandma
During winter vacation, I spent my lucky money on a special gift for Grandma. One Friday
afternoon, I went to a cell phone store and chose a large button phone specially designed for seniors. I
gave it to Grandma when I came to visit her at the weekend. Upon receiving the phone, Grandma was
very happy and eager to learn how to use it. I patiently explained all the important functions she needed.
Grandma learned carefully and wanted to have a try. With my help, she successfully called her friend.
That afternoon Grandma proudly told the neighbors that she could make calls with the new phone I
bought her. They all praised how thoughtful I was.

Last weekend ,my grandparents made a plan to have a visit to Beidahe,and they asked me for help.On hearing that,I was so excited that I agreed immediately.First,I booked the tickets on the Internet an...

本次 今年9月6日，红星中学七年级语文科举办了古诗文朗诵比赛，公平公正，符合学校相关比赛要求，真实，有效，公证员：某某，年月日

示例：
　　奥运是平台,我们是堆砌者；奥运是窗口,我们是守望者；奥运是圣地,我们是志愿者；奥运是契机,我们是参与者.（开放题,不设统一的答案）

红星中学在植树节共发放若干棵树苗到每个班级,已知七（二）班所植树苗是七（一）班的3倍,七（三）班所植树苗是七（二）班的2倍,三个班共植树300棵,则七（一）班植树（ 30 ）棵,七（二）班植树（ 90 ）棵,七（三）班植树（ 180 ）棵.
300÷（1+3+3×2）
=300÷10
=30棵
30×3=90棵
90×2=180棵

1） 1080÷ （5/4 + 1）= 480人
480 X 1= 480人（男生）
480 X 5/4 = 600人（女生）
2） 设男生有X人,女生则有 5/4X人.
X + 5/4X =1080
9/4X = 1080
X = 480
480 X 5/4 = 600人（女生）
3） 女生：男生 = 5/4：1
=5：4
1080÷（5+4）=120人（每份）
120X5=600人（女生）
120X4=480人（男生）

I am a sutudent from Hongxing school

解题思路：根据“本金×（1+年利率）=本息和”作为相等关系列方程求解即可．注意去年存的本金为[2000（1+x%）-1000]元．注意根据实际意义进行值的取舍．

设一年定期存款的年利率为x%，依题意列方程，得
[2000（1+x%）-1000]（1+x%）=1155
（1000+2000x%）（1+x%）=1155
1000+20x+10x+0.2x²=1155
0.2x²+30x-155=0
x²+150x-775=0
（x-5）（x+155）=0
x₁=5，x₂=-155（舍去）
答：一年定期存款的年利率为5%．

点评：
本题考点： 一元二次方程的应用．

考点点评： 找到关键描述语，找到等量关系准确的列出方程是解决问题的关键．本题的等量关系是：本金×（1+年利率）=本息和．

I am in Class 2, Grade 7 in Hongxing Middle School.
I study in Class 2, Grade 7 of Hongxing Secondary School.
I am studying in Class 2, Grade 7 of Hongxing Secondary School.
红星,可能意译哦(⊙o⊙),Red Star...请以当地习惯为准
供参

My name is li Ming from red star middle school class 1 grade 9, I once had an experience to be cheated, when I know I was very sad after I cheated, I dare not to believe others easily. Slowly I walked out of the shadows and if the students met such things, must be careful, don't trust to a stranger
满意就采纳吧,最后一个采纳就升级了.

Last Saturday, my friends and I went to climb the West Mountain. While climbing, we enjoyed the sunny weather and a beautiful view. We were very delighted to reach the top without much time or effor...

（1）50
（2）35
（3）如图．

One possible version:
Last weekend, I helped my grandparents prepare their trip to Beidaihe. On Saturday morning, together
with my grandparents, I searched the Internet for the train schedule, the weather in Beidaihe, and some hotel
information. In the afternoon, I went to the train station and managed to buy two tickets for my grandparents
although there was a long queue. After dinner, I packed into the suitcase the things my grandparents need,
such as clothes, glasses, an umbrella, and a map. The next morning, I went to the station to see them off.
Waving goodbye to them on the platform, I felt happy for them and wished them a safe journey.

There was a problem with the parking place for bikes in our school. I noticed the entrance was small and almost blocked. So my classmates and I had a discussion and wrote a report. Then we went to meet the schoolmaster in his office and gave the report to him. He accepted our suggestions. Soon afterwards, a second entrance was opened to the parking place. Now it is easy to park our bikes there.


这篇情景作文主要涉及四个要点：1. 点明问题;2. 讨论问题;3. 提交建议;4. 看到变化。在写作时要以时间为主线，事件为辅助，写清事件的过程。宜用一般过去时、第一人称来写。
【亮点说明】使用了从句：1.I noticed the entrance was small and almost blocked.2.不定式短语及形式主语：Now it is easy to park our bikes there.

提示一下哈,
、（1）参加枫江旅行社的总费用为：3×500+250a=250a+1500；
参加东方旅行社的总费用为：（3+a）×500×0.8=400a+1200；
答：参加枫江旅行社的总费用为（250a+1500）元,参加东方旅行社的总费用为（400a+1200）元；
（2）当a=55时,参加枫江旅行社的总费用为250×55+1500=15250（元）；
参加东方旅行社的总费用为：400×55+1200=23200（元）．
∴参加枫江旅行社合算．
答：参加枫江旅行社合算．

示例：奥运是体育的盛会，奥运是和平的盛会，奥运是人类文明的盛会。北京奥运会即将拉开帷幕，那么，此时此刻我们有何感想呢？（答案不唯一）

Last weekend, I helped my grandparents prepare their trip to Beidaihe..on Saturday morning ,together with my grandparents , I searched the Internet for the train schedule ,the weather in Beidaihe

42/280 *100 %= 15%
今年的招生人数比去年增加了百分之15

分析：此题关键在于对两次购买文具是在（1）,还是（2）,还是（3）中不确定,因此把（1）
（2）（3）三种情况的底线求出来再进一步计算,必要的时候要分类讨论.
在（1）中,最多付款5000元,最少付款0元；
在（2）中,最多付款15000×90%=13500（元）,最少付款要大于5000×90%=4500（元）；
在（3）中,最少付款要大于15000×90%=13500（元）.
因此在（1）中付款范围为0～5000元,在（2）中付款范围为4500～13500元,在（3）中付款范围大于13500元.
∵第一次付款3600元
且3600元＜4500元
∴第一次付款在（1）中,不予优惠,则原金额为3600元
∵第二次付款11700元
且11700元＜13500元
∴第二次付款在（2）中,给九折优惠,则原金额为11700÷90%=13000（元）
∴两次物品总金额为3600+13000=16600（元）
∵13500元＜16600元
∴此次付款在（3）中,15000元九折优惠,超过15000元的部分八折优惠,
则需付款：15000×90%+（16600-15000）×80%=13500+1280=14780（元）
前两次付款总额为：3600+11700=15300（元）
那么可以少付15300-14780=520（元）
答：那么可以少付520元.
反思：此题十分典型（分段收费问题）.此类问题一定要分好段,有时要设方程分类讨论,例如
在上题中如果出现付款在4500元～5000元时,就要分是在（1）中还是在（2）中进行讨
论.特别要注意每段的临界值,是“超过……”还是“不超过……”.
希望对您有帮助,祝您成绩进步.

（1）

A B
C AC BC
D AD BD
E AE BE 所有等可能结果：（A，C）（A，D）（A，E）（B，C）（B，D）（B，E）

（2）P _{（C型号打印机被选购）} =
1
3 ．

One possible version:
Last Friday, my class took part in a meaningful and challenging course-Outward Bound.
Early in the morning, we got to an Outward Bound centre on our school bus. Upon arrival, we were
divided into several groups and our coach introduced the course to us. Shortly afterwards, we got
involved in various activities. One of them was jumping across a broken bridge. I was afraid at first,
but with the encouragement of the coach, I finally made it. What impressed me most was climbing over
a wall to “escape.” We helped one another and all of us managed to “survive.” Before we left the centre,
we had a photo taken to record the unforgettable experience, which gave us a good chance to build up
courage and improve our sense of teamwork.

On October 8th we celebrated our school’s 50th anniversary. A great number of former students and retired teachers came to the celebration. In the morning, teachers as well as students gave a warm...

One Possible Version
Last month, our monitor suggested at a class meeting that we do something to decorate our classroom. Some classmates wanted to hang several pretty pictures on the wall, while others thought it would be great to put some plants in the classroom. Most of us preferred the second idea. In the following week, a variety of beautiful plants were brought to the school, which immediately created a relaxing atmosphere. Every day after class, we devoted our spare time into caring these plants, watering them regularly. With fragrant flowers around us, we felt at peace with ourselves and it surely helped us reduce some stress.


此书面表达有图画兼文字提示，因此在动笔前先要审阅提示在整篇文章中，努力避免只是用一、两个句式。要灵活运用各种句式，如主从复合句、定语从句、分词短语、介词短语等。要把每一副图片的内容描述清楚，不用适当的关联词，连接起来，是文章意思上下连贯，符合语言环境。尽量避免重复使用同一单词或词组。
【亮点说明】文中使用了非常好的短语和句子为文章增色不少，比如 we devoted our spare time into caring these plants, watering them regularly With fragrant flowers around us。 还运用了 which immediately created a relaxing atmosphere定语 从句等等。并注意了句子的衔接如： Some classmates， while others thought，In the following week, Every day after class, 等等。
考点：

1年前

两次捐款中,第一次用教师捐款购买文具付款3600元,不优惠,第二次用学生捐款购买文具付款11700元给九折优惠,也就是一共少付了1170元
如果改成一次付款,若还是花3600+11700=15300,此时,前15000九折优惠可少付1500元,超过的15300-15000=300八折,可以少付300*20%=60元,一共可以少会1500+60=1560元
这样算下来就少付了1560-1170=390元

示例：
　　奥运是平台，我们是堆砌者；奥运是窗口，我们是守望者；奥运是圣地，我们是志愿者；奥运是契机，我们是参与者。（开放题，不设统一的答案）

Dear Sir or Madam, I would like to host a student from Saint George High School. My house is big enough to give him a room to live in. Also, I am good at English listening and speaking. I have studi...

595/600=99%

心情的好坏决定季节的美丽与否； 陈述（示例）：我方认为心情的好坏决定季节的美丽与否。一个心情舒畅的人看到什么都觉得是美丽的，而心情坏的人，就算是在百花盛开的春光里，他照样会心烦意乱。古诗有云：春有百花秋有月，夏有凉风冬有雪，若无闲事挂心头，一年终是好风景。

略

Hello, our task today morning to meet our alumni together with the teacher, then the principal will be addressed mainly, then will we take our alumni to visit the campus.Afternoon watching cabaret, wi...

I'm Lihua,the monitor of Grade 9 Class 1 in HongXing Middle School

哈哈 这个也可以?是作文作业吧? 我就帮你写一篇吧
Dear whom it may concern,
My name is Zhang Li and I'm a student from Hongxing middle school. I've recently encountered an advertisement on my school's newspaper regarding the matter of hiring a middle school intern reporter for your corporation. I would like to ask for an interview from your corporation for this intern position. I am a confident and practical student who has tremendous passion for journalism, I have written many articles for my school's news paper in both Mandarin and English. I strongly believe that my dual language compatibility is a vital asset in today's society and I would love to gain more experience in the field of journalism before my university years so I can obtain some first hand experience as a reporter. Hopefully I can have a chance to speak with your company's recruiters for more information concerning this position.
Yours truly
Zhang Li
.这么点应该可以糊弄过去了 哈哈

(Our Spring Outing)
Last weak, our class want to spring outing. After class we discuss where to go . Some said to amusement park, or go boating and others want to climb mountain. Finally, we destinated to climb the mountain.
Next morning, the weather is fine. We got the foot of the mountain after two hours. We started climb the mountain. We helped each other. Afternoon, we climb the top of the mountain. We had a panic in the mountain. At 5 p.m, we clean the mountain and put rubbish into the bin. We went to go home. We sing the song and very happy.

假设七一班为1份,七二班是一班的3倍,为3份.七三班是二班的2倍,所以是6份.
1+3+6=10份.300/10=30棵/份.
七一班：30×1=30棵
七二班：30×3=90棵
七三班：30×6=180棵

(Our Spring Outing)
Last weak, our class want to spring outing. After class we discuss where to go . Some said to amusement park, or go boating and others want to climb mountain. Finally, we destinated to climb the mountain.
Next morning, the weather is fine. We got the foot of the mountain after two hours. We started climb the mountain. We helped each other. Afternoon, we climb the top of the mountain. We had a panic in the mountain. At 5 p.m, we clean the mountain and put rubbish into the bin. We went to go home. We sing the song and very happy.