介绍姑姑的英语作文(合集20篇)

I am Ma Yuanhao. Now let me tell you something about my family. My family has seven people in it, my father, my mother, my brother, my sister, my uncle, my grandfather and I. My grandfather is a driver. He drives a bus. He works in Beijing. He has two kids. They are my father and my uncle.

My father and my uncle are both office workers. They are in the same office. My brother is a policeman. He is tall and strong. He works in Shenyang.I am a student. My sister is a student,too. We are in the same school, but in different grades. My mother is a nurse. She works in a hospital. We live in Beijing now with my parents.

I often have bread and milk for breakfast. I like eating hamburgers, too. And for lunch, I usually have some chicken with vegetables and rice. Jiaozi is my favorite food. I usually have Jiaozi and an apple for dinner. I think I can eat healthily.

My mother cooks very well. She often cooks nice food for us.

I love my family!

Hello, My name is Gu Siyao. My English name is Hellen. I am 12 years old. I form Xiouzhou Experimental Shool. I love my school. Because my school is very beautiful and big .The trees are green and the sky is blue. The classes are interesting and exciting. The teachers are not strict. And the students are very lovely. They always help each other.

Fall is my favourite season!

Autumn comes, it just cant wait to fly to the orchard, open its cosmetic box, put the apple on the apple tree is painted red and fiery red, to orange trees as the golden orange dye, the grapes of the vine over dyed purple sky. Pomegranate pomegranates on the baby to see the autumn is coming, open the mouth to welcome it, they laughed very sweet very sweet, as if to say: "you see, my fruit like glittering and translucent picking through ruby?"

Autumn quietly came to our garden, open it beloved color box, color the chili red, like a fiery red firecrackers. Good people are waiting for the arrival of the autumn, the bright red pepper pickled chilli sauce. People say that after the beginning of autumn pickled chilli sauce can save for a long time didnt sour!

Autumn came to the maize fields, the painted golden corn, corn see autumn immediately smiled, it laughs teeth are going away. Waiting for it to hard-working farmers growing fullness, rich good do seeds in the coming year!

Autumn to fly to the rice fields, open its sewing box, the rice with golden silk embroidered golden. When we looked around, as if their goes into a desert... Farmer uncle is eagerly looking forward to its early maturity, fetch a good price!

Fall is the students nervous. School begins, everyone into my studies. For we just four grade, learning task is heavier, more homework. The teachers pay too much...

Autumn is the harvest season, let people much a cooler, more than a happy, also much a harvest; At the same time also let the students a more nervous. Let us happily spend this beautiful autumn!

秋天是我最喜欢的季节!

秋天一到，它就迫不及待地飞到果园里，打开它的化妆盒，把苹果树上的苹果涂得火红火红的，把橘子树上的橘子染得金黄金黄 的，把葡萄树上的葡萄泼染得紫莹莹的。石榴树上的石榴宝宝看到秋天来了，就裂开嘴儿来欢迎它，它们笑得很甜很甜，好像在说：“你看，我的果实像不像晶莹剔 透的红宝石?”

秋天悄悄地来到了我们的菜园，打开它心爱的颜料盒，把辣椒涂得红通通的，犹如火红的鞭炮。人们正等着秋天的到来，好把鲜红的辣椒腌制成辣酱。人们都说立秋之后腌制的辣酱能保存很久都不变味哦!

秋天来到玉米地里，把玉米画得金灿灿的，玉米看到秋天立刻笑了，它笑得牙齿都快掉了。勤劳的农民正等着它日渐丰满殷实，好做来年的种子呢!

秋天飞到稻田里，打开它的针线盒，用金色的丝线把稻子绣得金灿灿的。放眼望去，仿佛自己走进了一片沙漠里……农民伯伯正急切地盼望它早日成熟，卖个好价钱呢!

秋天又是同学们紧张的季节。学校开学了，大家都投入到学习当中去了。对于刚升四年级的我们来说，学习任务更重了，作业也更多了。老师的付出也多了……

秋天是丰收的季节，让人们多了一份凉爽，多了一份快乐，也多了一份收获;同时也让同学们多了一份紧张。让我们愉快地度过这美好的秋天吧!

导语：来到新班级遇到新朋友，我们都会进行一次自我介绍，下面是yuwenmi小编为大家整理的相关英语作文，欢迎阅读与借鉴，谢谢!

Hello, my name is Lin Fan, the first day of school I know our class have a classmate, also called Lin Fan, how have the fate ah, the teacher in charge teacher sun because my age small call me "xiao Lin sails". I believe you to me you are not familiar with, let me introduce myself.

I am 13 years old and I am an honest, cheerful, lively and steady boy. My advantage is that every time on learning seriously complete the teacher the assignment, my grades are ok. The disadvantage is that, cant take the initiative to answer questions in class did not dare to speak out, some careless in the exam, sometimes simple question is wrong. Due to primary school didnt cram English, so English learning not enough system, the result has been not so good. I very like painting, also like Internet, love to play games.

While, as Ive become a middle school student, in the new semester, I want to get rid of the defects in learning, with a new attitude to meet new learning, also hope that teachers and students to guide me, help me, believe we can become good friends.

【参考译文】

大家好，我的名字叫林帆，开学的第一天我就知道我们班级还有一个同学，也叫林帆，多么有缘份呀，班主任孙老师因为我年龄小一点叫我"小林帆"。相信大家对我还不熟悉，下面我做一下自我介绍。

我今年13岁，我是一个诚实、开朗、活泼又稳重的男生。在学习上我的优点是每次都认真完成老师布置的作业，我的学习成绩还行。缺点是课堂上不能主动回答问题，不敢大声发言，考试时有些马虎，有时简单的问题也会答错。由于小学阶段没有补习英语，所以英语学习的不够系统，成绩一直不太好。我非常喜欢画画，也喜欢网络，爱玩游戏。 一转眼，我已经成为一名中学生了，在新的学期里，我要改掉学习上的缺点，用一种崭新在学习态度迎接新的知识，也希望老师和同学们多指导我、多帮助我，相信我们也能成为好朋友

When the summer comes, the weather is so hot, it is rarely to see the rain.

Today, when I wake up, I find the weather is chilly, it is going to rain. I am

so happy, I miss the rain so much. Suddenly, the rain drops from the sky, I ran

out of the house, looking at the sky, dancing with the rain. I feel so cool,

then all my weariness has gone.

导语：袁隆平院士是中国杂交水稻事业的开创者，是当代神农。下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

China the great father of Hybrid Rice - Mr. Yuan Longping, was born in Beijing, he is our great Chinese rice engineering, biology professor, the United Nations Food Industry consultant.From the beginning of 1964, Mr. Yuan Longping began studying hybrid rice technology, to 1975 study successful cultivation techniques of hybrid rice, hybrid rice he for large area promotion foundation.In 1964to 1965in two rice blossom season, he and the team every day is so hard, feet on the mud, long bow, not tired a day and night, holding long-term backache, finally in the paddy fields found a natural male sterile plants.Yuan Longping experienced many failures, he did not flinch, he let us Chinese pride, let the whole world people sit up and take notice!

中国伟大的杂交水稻之父-袁隆平先生,出生于北京,他是我们中国的伟大的水稻工程学家、生物教授、联合国粮食业首席顾问.从1964年开始,袁隆平先生就开始研究杂交水稻技术,至1975年研究成功杂交水稻种植技术,他为大面积推广杂交水稻奠定了基础.在1964年至1965年两年的水稻开花季节里,他与研究小组每天都是如此的辛苦,双脚踩在烂泥中,长久的低头弯腰,不知劳累了多少个日日夜夜,强忍着长期性腰酸背痛,终于在稻田里发现一种天然雄性不育的植株.袁隆平先生经历的很多失败,他并没有退缩,他让我们中国人骄傲,让全世界的人刮目相看!

My name is Yin Zhaoyi. Im nine years old. Im from Hengyang, Hunan. I love writing and reading.

I was a lively and cheerful girl, face, round eyes, long eyebrows, high nose, black hair, big mouth, short stature, long limbs.

Today is Sunday. I asked my mother if I could go to the library to read books. My mother said yes, I went straight to the library happily, and there were very few people in the library. I picked up a book and looked up. An hour passed, and two hours passed. Until 6 oclock in the evening, I found it was 6, and I ran home at full speed.

A no African black boy, this year 12, small eyes, collapse collapse on the nose. And there was a big ears Desmond tutu gene "siddhi moving ears!

"The teacher is saying!" See, I and sister trueer, for example, 3/4 * 7/10. I said must take three quarters into the denominator is ten, elder sister said, also can directly take, I didnt pay attention in class, to lead to such result, I this is impatient.

"Clicking" I played the boys favorite through the wire. The mother shouted: "have a pear for me!" When I was have a good time, very reluctantly said: "go play again for a while." After a while mother urged again, I still say to play for a while. When I play enough, its been more than an hour, after the mother took a pear, mother long give a sigh said: "eat pears, you wash is really not easy!" This is I love playing computer.

"Get up!" Sister woke me, I rubbed his dim eyes, deep ground to say: "what time is it?" "11" "only 11 o clock will go to sleep!" "Today, cleaning,! Hurry up!" Three words heard the cleaning, I immediately pack to sleep, you know, I usually take a little clothes, socks, are ok, but... Cleaning or forget it! Sister cry to me a few words: "slacker!" This is not love doing housework, I love to sleep.

"Second, second pass" the person who is fierce Shouting it is me. I love playing basketball and table tennis, although Im not too good, but I can play, a free until to dont want to play! And table tennis, we are all activity to practice and play, although I played not champions, but "no challenge champion will never be the champion" is the movement of love me!!!!!!!

"Oh! I have forgot my meal card in our bedroom!" Poor Zhang Shanzheng pain shouted. "I borrow your" I said without hesitation! Zhang Shanzheng hurriedly said thank you to me, my arms around him. "All are brothers, dont mention it!" Another time before six and I (3) class Zhao Junkai and fit in with the cui, we are all iron elder brothers, once was playing it, Zhao Junkai injured, we two word, holding him and ran the clinic, to check he dont have my card. I didnt take, I will let him to register my name, since the return of money!

This is me, more I trouble, less advantage of me. Dont you want to make friends with me?

一个没有非洲人黑的小男孩，今年12，小眼睛，塌塌的鼻子。又有大耳朵图图的基因“动耳神功!”

“老师就是这样讲的啊!”看，我又和姐姐较真，就比如说3/4*7/10吧!我说必须把3/4化成分母是十，姐姐说，也可以直接乘，都是我在课上没注意听，才导致成这样的结果，这就是不耐烦的我。

“嗒嗒”我又玩起了男生的最爱《穿越火线》。妈妈喊到：“给我洗个梨!”我正玩得高兴的时候，就很不情愿地说：“再玩一会再去。”过了一会妈妈又催了，我还是说再玩一会。等到我玩够了，已经过了一个多小时了，之后才给妈妈洗了个梨，妈妈长叹一口气说：“吃你洗的梨，可真是不太容易啊!”这就是爱玩电脑的我。

“起床了!”姐姐叫醒了我，我揉了揉朦胧的眼睛，低沉地说：“几点了?”“11点了”“才11点再睡会!”“今天大扫除，!赶紧起来!”一听到大扫除三个字，我立即就装睡，要知道，平常我洗个小衣服、小袜子，还行，可是……大扫除还是算了吧!姐姐对我嚎了几句：“懒虫!”这就是不爱干家务，爱睡觉的我。

“秒传，秒传”那个正激烈喊着的人正是我。我非常爱打篮球和乒乓球，虽然打得不是太好，但是一有空我就玩，直到玩到不想玩为止!还有乒乓球，我们都是活动课练和玩，虽然我打得不是冠军，但是，“不与冠军较量就永远不会是冠军”这就是爱运动的我!

“哎呀!我的饭卡忘在寝室了!”可怜的张山正痛苦得呐喊道。“我借你”我毫不犹豫的说!张山郑连忙对我说了声谢谢，我搂住他。“都是兄弟，不用客气!”还有一次我和以前六(3)班的赵俊凯还有崔合群，我们都是铁哥们，有一次正在玩耍时，赵俊凯受伤了，我们俩二话不说，挽着他就往医务室跑，要结账了他没带卡。我也没带，我就让他登记我的名字，下回来还钱!

这就是我，毛病多的我，优点少的我。你们难道不愿意跟我交朋友吗?

Good morning everyone!

Im Nickole. Im 24. I graduated from Hunan Normal Universaty on Shuda Campus. My major is English Education. After graduation， I have worked for one year in Li Yang听Kids Engish. My students are between 5 and 12 years old.

Im outgoing and open-minded. In my spare time， I have broad interests. Such as reading， surfing the internet， listening to music and even chatting with foreign friends online if possible. I like children very much. I think children are active， innocent and pure. With them， I feel very relaxed， plesant and younger. Therefore， I learned a lot from my one year working experence.

Teaching children English is very interested but it is also challeging. Because children are always active， even sometimes very naughty. So teachers need a lot of patience to deal with children. The most important that I have learned from my one year teacing experence is that a teacher should have the kind of听the mind that always wants to go on learning. Teaching is a job at which one will never be perfet. If I have the chance， I will try my best to be a good primary English teacher.

good morning， my name is xx， it is really a great honor to have this opportunity for a interview， i would like to answer whatever you may raise， and i hope i can make a good performance today， eventually enroll in this primary school.

I am a third year master major in automation at Shanghai Jiao Tong University， P. R. China. With tremendous interest in Industrial Engineering， I am writing to apply for acceptance into your Ph.D. graduate program. In 1995， I entered the Nanjing University of Science & Technology (NUST) -- widely considered one of the China’s best engineering schools. During the following undergraduate study， my academic records kept distinguished among the whole department. I was granted First Class Prize every semester， and my overall GPA(89.5/100) ranked No.1 among 113 students. In 1999， I got the privilege to enter the graduate program waived of the admission test. I selected the Shanghai Jiao Tong University to continue my study for its best reputation on Combinatorial Optimization and Network Scheduing where my research interest lies.

Good afternoon, professors !I am great honored to meet you here.Now allow me to give a brief self-introduction.

My name is xx, xx years old, born in xx city, xx province. I have been working for nearly xx years. I am open-minded, quick in thought and very fond of history. In my spare time, I have broad interest like many other youngers.

In year xx, I entered xx, major in xx. After my graduation, I entered xx University to study my postgraduate course, major in xx. In those 7 years study, I worked hard, and I gained scholarship for many times.

During 3 years study in xx University, under the strict guidance of my tutor, I have learned systematically the theory of xx. I benefit from working together with excellent colleague. xx University shares many same characteristics with xxx University. Both of them have a refreshing, scholarly atmosphere.

After my graduation in xx, I worked in xx. I got a position in xx. However, with time going on, the more I experienced, the clearer I realized that I am really interested in xx. I am eager to learn more about xx and I hope I can study further. I wish to find a way to solve the complicated problem in my daily work.

So I started the way to pursuing my studies in xx, and work hard for about half year. Now all my hard word has got a result since I have a chance to be interview by you. If luckily I got the chance to learn xx, I will work harder than before. Thank you!

My name  . I am from . There are people in my family. My father works in a computer company. He  a computer engineer. My mother works in a international trade company. She  also a busy woman. I have a older ster and a younger brother. My ster  a junior in National Taiwan University. She majors in Englh. My brother  an elementary school student. He  8 years old.

Because of my father, I love surfing the Internet very much. I play the on-line game for about 2 hours every day. I wh I could be a computer program designer in the future. And that  why I am applying for the electronics program in your school.

My hometown is in ZhenZhou city china,There are a lot of people live here,Its a famous city.The people are very friendly.The climate here is very pleasant.

My hometown has different seasons,spring.summer.autumn and winter.I like the spring ,because flowers are very beautiful,the weather is very sunny,what a lovely spring days!i hate cold weather,

so i dont like winter.we have a lot of rain in autumn,this is my favoures seasons,in this seasons,we can see many different colors,i love the colors of the trees-red,gold,yellow and brown .fairly cool for this time of years!summer is always hot,Its quit muggy in summer.

My hometown has different food,the food is excellent and quit cheap ,Its doesnt pollute.In the restaurant,you can enjoy good service and delicious food .

welcome you to my hometown travel!

i am xxx. i was born in xx. i graduate from senior high school and major inenglish. i started learning english since i was XX years old. my parents have alot of american friends. that’s why i have no problem communicating withamericans or others by speaking english.

in my spare time, i like to do anything relating to english such aslistening to english songs, watching english movies or tv programs, or evenattending the activities held by some english clubs or institutes. i used to goapoad for a short- term english study. during that time, i learned a lot ofdaily life english and saw a lot of different things.

i think language is very interesting. i could express one substance byusing different sounds. so i wish i could study and read more englishliteratures and enlarge my knowledge.

Hello,everyone!

I was fortunate to 200 * years in September admitted to the University of ad specialty XX. From 200 * to 200 *, from East Campus to Dushu Lake Campus. In the Soviet four years, brought me a lot of heritage and memory. Four years passed away, when they graduate, should be for the life of four years in the Ivory Tower to learn to do an interview self-introduction.

In four years, I quite seriously in learning, performance is also better, every year the school received a scholarship in the class have been able to maintain in the top five. Particularly in the specialized courses concerned, as far as possible to learn good use. Actively participate in various advertising competitions, and won the National College Advertising Art Competition Third Prize of Jiangsu Division. Both peacetime operations, or papers, or exams, can seriously hope the best. If you would like to say that four years in learning what the greatest regret is that English, formerly in high school Ive had a nice English, but into the university, I slack on the English language, and not spend too much time to learn , resulting in the test to graduate have not been 6.

In social practice, I think my experience was very abundant. 200 * in the second half, I have to do internship in an advertising agency planning work, although the beginning of what will not, very hard, very tired, but when I as a Fan Meeting planners and executors of the stage and flowers after child communication band, when I write advertising effectiveness measurement companies Ina ceramic gain customer acceptance of the report, when I see their planned ceremony, opening ceremony of the successful implementation of the time, when I designed the LOGO when used by businesses When I work independently in the scene when the road show, I was happy. With my own efforts to complete a task. Internship in advertising, I learned a lot of things can not go to school books, contact with clients across industries, while also working in the printing industry, media, service organizations and other rituals have a certain understanding for the future able to adapt quickly to lay the foundation for work.

Prior to this, McDonalds, I also worked part-time, bitter, tired, but that time has given me a lot of fun. Learn a lot. I begun to taste the hardships of life and make money easily. McDonalds as a world-class enterprises, it has a strict standard of staff training system and working mechanism. Work at McDonalds, on the one hand I learned such a big company product promotion, teamwork, customer service, quality assurance and so should learn the rules and regulations and successful experiences, on the other hand, deal with all kinds of customers, but also enhance the my ability to communicate with others, in addition, work has worked hard my hard-working spirit.

In addition, in terms of ideology, I also actively move closer to the party, on the one hand, to strengthen its own ideological and moral construction, to arm themselves ideologically; on the other hand, in the spirit of serving the people, adhere to help others, serve the community members of the strict demands on themselves. Finally the beginning of the glorious junior joined the Chinese Communist Party, and successfully turned positive after one year.

Four years in college, I know a lot of friends, they gave me a lot of help, let me learn a lot, this is college, in addition to expertise outside of an additional valuable asset.

In short, four years of school life, whether professional or social knowledge about, or people skills, have learned a lot I can say that four years of my life the most significant period of time, my ideal life and the pursuit of life during this period to determine their own career planning for a new life also have a new goal. I will continue to work closer to success!

Thank you!

I‘m twelve years old.I am a student of Class 1,Grade 7.I like playing

basketball and reading.My favourite fruit are banans and apples.Also,I like

eating hamburgers.I am a good student in my class.I like English and math

because they are interesting.Im friendly.I like sports.Do you want me to be your

friend?

I like this hotel management professional,because I like to live in a

strict order of the management environment.I have my professional

self-confidence and hope,as long as the efforts will be fruitful,this is my

motto.Since I chose this profession,I will follow this path,effort,perseverance

path.

Thank you teachers.I finished presentation.

这是今年十二岁的梅。我是1班的一名学生，7年级。我喜欢打篮球和读书。我最喜欢的水果是香蕉和苹果。另外，我喜欢吃汉堡。我在班里是一个好学生。我喜欢英语和数学，因为它们很有趣。我很友好。我喜欢运动。你想让我成为你的朋友吗?我喜欢酒店管理这个专业，是因为我喜欢生活在一个严格管理秩序的环境。我对我的专业充满自信和希望，只要努力，就会有收获，这是我的座右铭。既然我选择了这个专业，我会走这条路，努力的，坚持不懈的走下去。我的介绍完了。

how are you, i call xx.this year is 22 years old.graduate from xxxx college.the profession is a calculator multimedia.i am one is bright, optimism, there is the person of responsibility.a fondness for plays basketball, computer, listen to music, etc..thankful your company gives me this the opportunity of the personal interview!

中文版：你好，我叫xx。今年22岁。毕业于xxxx学院。专业是计算机多媒体。我是一个开朗，乐观，有责任心的人。爱好打篮球，电脑，听音乐，等。感谢贵公司给我这次面试的机会!

Good morning/afternoon teachers and classmates.Im XXX.I am a girl of 13.My family including my father,mother and me.I like basketball best.In addition,I also like table tennis.My favorite food is carrots.Im also very interested in snacks.What,Im good at computer.Using the computer E-mail,shopping and even solve my problems in the study and the life is so convenient.So I put my computer as my good helper.As for reading,Ive read about magic novel.Are these.Nice to meet you!I sincerely hope to make friends with you.

老师同学早上/下午好.我是XXX.我现年13岁.我的家庭包括我爸爸,妈妈和我.我最喜欢篮球.除此以外,我也喜欢乒乓球.我最喜欢的食物是胡萝卜.我也对小吃很感兴趣.还有什么,我很擅长电脑.用电脑发邮件、购物甚至是解决我学习和生活中的问题是如此的方便.所以我把我的电脑视为我的好帮手.至于阅读,我以前读过一些关于魔法的小说.就这些.很高兴认识你们!我真诚地希望与你们做朋友.

My name is Jane.I like to go to school.I am in Class One,Grade Sven.

Our classroom is very beautiful and clean.There is a biackboard on the walland some beautifui flowers on the sill.There are two big trees behind our classroom .We often play games under the trees.

There are forty students in our class.Twenty students are grils and others are boys .We always help one another.We have five teachers.They teach us math,science,English,music and P.E.They all work hard.We like them very much.There are four classes in the morning and two classes in the afternoon every day.We study very hard.I like our class.

If Anshun is a ship, then Im on board the diligent crew. If Anshun is a vast sea, then I am a small fish in the sea. If Anshun is a kingdom, then I am the loyal people of this kingdom. If... Yes, Anshun is my home. I cant have it without it.

Of course, some people hate Anshun, she felt dirty and messy, almost can be used to describe the The atmosphere was foul. A few years ago was clear moat, now become the paradise of flies and mosquitoes. People are so narrow - minded that they start to fight like the machine gun that cant stop. Its a habit to spit and throw rubbish everywhere...

But if you are a citizen of Anshun, then, will you hate it? Destroy it? Or is it going to build it? Protect it? Not to say, you will choose the latter, but it is easy to say, it is difficult to do it, after all, people have formed a habit. Yes, Anshun is not Dalian clean, less than Japans grave, but it has the worlds second largest waterfall - Huangguoshu Waterfalls falls, it is beautiful and magical underwater, quiet and huge waterfalls in Zhijin cave, the scenery is more beautiful...... It also has the colorful spring, the luxuriant summer, the beautiful autumn and the white and silent winter. Here also has laughter and laughter, and also has the sadness and loneliness... Anshun, it has the beauty of nature, the magic of nature, the endless charm of nature! I know that people love is the beauty of simplicity, in this city far away from the denitration place, we can relax my heart, more simple. However, people do not know how to cherish the natural beauty, the simple beauty, let us start from now, learn to cherish it!

Spring girl came to us. Although the greening of Anshun is still not very GOOD, there are always some strong grass that quietly sneak out of the little head and show the green of life to us.

Hello, everybody. I am ning cai chen from beijing, i am working for an agent for a electric company in beijing. it is about five months since i came to the united states, and i miss my family very much. itll be several months before they come here, and i hope to continue to have an enjoyable single life till then. thanks.

Nowadays,with the rapid increase of population,the problems of overloading in cities is becoming more and more serious around the world.

For instance,the resources such as education,jobs,health care that a city can supply is limited.So more populations mean that everyone living in the city have less welfare.In addition,the phenomenon of pollution can also be aggravating.And the traffic jams will disturb drives frequently.

In order to deal with the problems caused by overloading,in my opinion,Lowering the birth rate is the essential methods.On the other hand,another way which is executable to reduce the pressure of population in cities is to move people from cities to suburban areas.Of course,this need the help of governments.

In a nutshell,it is time for us to make efforts to control the population timely.