关于控制手机的英语作文（汇集20篇）

导语：英语电子邮件并不难写，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!

假如你是李华，是英国某所学校的交换生，你几天前在英国的一个商店买的手机坏了。请你根据以下提示，给该商店客服发一封电子邮件。1.写作目的;2.具体问题：如手机黑屏， 不能重启等;3.解决办法：如维修，更换新手机等。注意：1. 词数在100字左右;2. 可适当增加细节，以使行文连贯.

Dear Sir or Madam,

My name is Li Hua, an exchange student from China. I’m writing to report the quality of the mobile phone which I bought from your store.

It unexpectedly went wrong a few days after I bought it. The screen turned out to be black while I was taking photos. I tried to restart it according to the instructions, but it still failed to work. Therefore, I’m sure there is something wrong with the phone. I am hoping that you direct me to a store where I may get it repaired or change it for a new one within the next 3 days. Since your store has gained a good reputation for customer satisfaction, I am confident you will process my problem at your earlier convenience.

Looking forward to your early reply.

Yours Sincerely,

Li Hua

【参考译文】

尊敬的先生或女士，

我的名字是李华，一个来自中国的交换生。我写信是想报告我从你们店里买来的手机的质量。

我买了几天后，它竟然出了差错。我拍照片时屏幕变成了黑色。我试图按照指示重新启动它，但它仍然无法工作。因此，我肯定电话有问题。我希望你能引导我到商店，我可能会得到修理或换新的一个在未来3天内。由于贵店为顾客满意赢得了良好的声誉，我相信你会在方便的时候处理我的问题。

希望早日得到你的答复。

谨上,

李华

Cell phone is very popular and used widely recent years. With cell phone, people can, any time, contact friends, talk to families and send blessing SMS to the beloved person. However, except enjoying so many convineiences, cell phone also has some negative effects on us. Radiation generated by cell phone is harmful to healthy; Specially, ring bells may disturb others. For example, if you are sleeping at noon break in the office, a sudden ring call may shock you from a dream; when all the students are listening to the teacher, a loud ring bell will interrupt the class and make others annoyed; or during a meeting, a call noices is really impolite to other attendants. So, people should know where and how to use cell phone properly, and just turn off your phone if it maybe disturbs others.

手机很受欢迎,近年来得到广泛应用。任何时候,有了手机,人们可以联系朋友,跟家人和心爱的人发送祝福短信。然而,除了享受很多convineiences,手机对我们也有一些负面影响。手机产生的辐射对健康有害;特别是,摇响铃铛可能打扰别人。举个例子,如果你是睡在办公室午休,突然环调用可能会冲击你的梦,所有的学生都听老师的时候,一声环铃会中断类和让别人生气;或在开会,电话响其他服务员是不礼貌的。所以,人们应该知道在哪里及如何正确使用手机,就关掉你的手机如果它可能扰乱他人。

Today, many people, especially young people, are phone freaks. They are addicted to their mobile phones. They always spend too much time chatting or watching movies on their mobile phones. They have less time to communicate with their friends and family members. They often feel anxious without mobile phones.

Depending on mobile phones too much is a kind of illness. Its bad for health. Looking at the mobile phones too often is bad for our eyes. Playing with mobile phones is a waste of time and gets in the way of study.

Phones can help us communicate more easily and know more about whats happening around the world. If we can use them at proper time and proper situations, they can help us have a better, happier life.

Mobile phone is really necessary and important in modern society as it

brings a lot of convenient to our lives and provides a new way for us to contact

with the world.

In the first place, mobile phone closes the relationship between people

because people can use mobile phone contact with each other at any time. In

particularly, for those people who are far away from each other, mobile phone is

definitely the best tool for them to keep and strengthen their

relationships.

Second, mobile phone makes our work or study more efficient. People can use

mobile phones to search data, to delivery files and so on. For students, they

can use mobile phone to do some readings at any time and any places without

carrying a book.

In addition, mobile phone makes our lives be more wonderful in that it has

been added more and more functions, such as watching movies, listening to music

and writing blog, etc.

Finally, we can use mobile phone to get acquaintance with the matters that

are happening all over the world. With the help of mobile phone, we can get the

latest news even that we stay indoors.

In a word, mobile phone provides great convenient for our lives, makes our

lives more wonderful and brings us an easier way to contact with the world.

Nowadays, with the development of computer, the function of computer has developed, too. We can use computer to check the instant news, make friend and so on. The reason why so many people addict to computer is that they like to play the computer games, there are all kinds of computer games, everyone can find a game which is suitable to him. Too much involve in the computer games is wasting time, we should control our habit. First, we must set the limit time on it, wed better not to play the game over an hour. We have to tell ourselves that we must stop playing when the time is up, we have another thing to do. Second, we should go out with friends often, so we can communicate with others, it makes our mind not focus on the computer games. I am not saying we should not play computer games, but we should not addict to it.

Recently, my father changed a new mobile phone, which is Samsung svmvng.

Silver gray shell, is flip, very beautiful. As soon as I turn over the lid, I

emit seven colors of light.

It has a lot of functions. Open the game, there is a my "pet", open a look,

wow! A kitten. I cant play, just press, the kitten disappeared, I see, broken!

Hurry to ask Dad, dad looked and said: "Oh, Lin Lin, how did you buy the kitten!

I managed to raise the kitten so much that its time to take part in the

competition. Why did you buy the kitten? " I said, "Dad, Im sorry, I cant play,

you teach me." My father bought a kitten with 8 yuan and taught me how to feed

it.

Dads cell phone also has the function of taking pictures. At noon, the

whole family gathered around the dining table to have a meal. I took a picture

of everyone, so that my grandfather, grandmother, father and mother looked at

their appearance. They all laughed, and I also laughed.

When I grow up, I want to buy a better cell phone than dads.

Iphone is always the best seller in the world market. Especially in China, so many young people are proud to have one at hand, which means they are in the fashion trend. The news even reported a guy sold his kidney just for collecting enough money to buy an iphone. It is true that iphone has the advanced technology and the system always works better than other smart phones’. But recently, the media made a report about the best seller on cellphone, to everyone’s surprise, the winner of all the time has come to second place and the new winner is Oppo. We are happy that foreign product is not the customers’ first choice, and they start to choose domestic products, which shows the improvement of our technology. We are so proud of the improvement, someday, there will be more homemade products.

We now phone really is also very useful, very convenient, no matter the

ends of the earth, can be reached, the letters can be more convenient than

before. It may be said "near", the world we live in on the mobile phone signal

under siege. It has the function of strong, is not a tool and a...

But mobile phones bring us, all is not good, sometimes is bad. Mobile phone

has changed many peoples ideas, it is also restricted the people,

Imagine what the poet tao yuanming described vividly in his "tori picking",

will have a cell phone rings? Li bai in exclamation "bowed their heads and

remembering home", someone will make a phone call for he will be home to have a

look? Must not! And they have lots of classical poems, we are now living in an

age of han han and guo jingming, no one to appreciate those celebrities yake

excellent poems.

Mobile phones has both advantages and disadvantages, we should properly use

cell phone to, can not afford to indulge in a world of mobile phone.

The future technology unimaginable, go, mobile phone is very convenient.

I developed a kind of the latest model of mobile phones, and rubber difference would like, the test, you can take it in hand, tried to cheat, and when the supervisor came over, you can immediately said: "this is the difference in rubber." In the paper, and then moved on, the supervisor, and continue to cheat, very convenient.

Kind of function with this phone is can be changed into human form, when you are happy, he will share it with you, when you are sad, he will share with you, when you are sad, he will give you, when you worry, he will give you happiness, has a very strong voice systems, languages, and identify system.

This phone is better than a computer, with convenient. On the Internet, the network is a computer 100 times, and with carry, where go to, to play games also better than the computer manipulation, and acoustic control, the appearance of mobile phones also can change, but also is the size of rubber is poor, if you want to make it big, you can unlock the function of size, as well as great.

This is developed by my mobile phone, convenient, and easy to understand.

未来的科技不可想象，千变万化，手机也是很方便的。

我研制了一种最新型的手机，和橡皮差很想，考试的时候，可以把它拿在手里，使劲的作弊，，当监考老师走过来的时候，你可以马上说：“这是橡皮差。”然后装作在差卷子，监考老师走后，又继续的作弊，很方便的。

这款手机还有种功能，就是可以变成人形，当你快乐时，他会和你一起分享，当你伤心时，他会和你分担，当你忧愁时，他会给你解闷，当你烦恼时，他会给你快乐，拥有很强大的语音系统、语言系统与分辨系统。

这块手机比电脑更好，跟方便。上网时，网速是电脑的100倍，而且随声携带，走到哪里带到哪里，玩起游戏来也比电脑好操纵，而且还是声控的，手机的外形也可以变化，但也只有橡皮差大小，如果想让它变大，就可以开启大小功能，和金箍棒一样。

这就是我研制的手机，方便、易懂。

I have a small mobile phone, is my dad gave me in the Internet, why call it a small mobile phone? Listen to me explain to you slowly.

This phone is The Times of childrens mobile phone, is my favorite cat form of appearance, but also pink! I can like it, though it is not a smartphone, function is very simple, can not play games on QQ, but its dad specially selected for me, I asked dad why people use smart phones, bought so original mobile phone back to me. Dad told me that the phone has a unique model of parents, can through the global satellite positioning, so dad can find me at any time! So that is what it boils down to. I see my dads a piece of my heart, to embrace this original mobile phone.

My cell phone is my little assistant, it when I need help, always help me, such as one time, I was in cram school, the teacher in advance the class was over, but dad still dont know, how to do? My cell phone is like my best friend reminded me that call dad, tell him ahead of the class was over, hurry up to pick me up. At another time, I have a cold, what what to eat to vomit, but I decided to go to cram school insists on that day, the class to the half of the time, I was really sick, sick, for the sake of my health teacher approval I returned home early, so I picked up my little assistant called to tell my dad, my dad arrived immediately, took me to see the doctor, go home for a rest, the second day I am all good!

Small mobile phone with me, can play a lot in my study and life indelible role, so I love my small mobile phone!

我有一部小手机，是爸爸给我在网上淘的，为什么叫它小手机呢?听我慢慢解释给你们听吧!

这款手机是贝倍安的儿童专用手机，外形是我最爱的猫咪形的，而且还是粉色的呢!我可喜欢它了，虽然它不是智能手机，功能十分简单，不能玩游戏不能上QQ，但是它是爸爸特意给我挑选的，我曾问爸爸为什么在别人都用智能手机了，还给我买了这么原始的手机。爸爸告诉我，这款手机它有个独特的家长模式，可以通过全球卫星定位，这样爸爸就可以随时找到我啊!原来是这样啊!我明白了爸爸的一片良苦用心，就欣然接受了这原始的手机。

我的手机是我的小助手，它在我需要求助的时候，总是帮助我，比如有一次，我上补习班，老师提前下课了，但是爸爸还不知道啊，怎么办?我的手机就好像我最好的朋友提醒我，打个电话给爸爸，告诉他提前下课了，快点来接我。还有一次，我感冒了，吃什么吐什么，但是那天我还是决定坚持去上补习班，结果课上到一半的时候，我实在不舒服了，吐了一地，为了我身体着想，老师批准我提前回家，于是我拿起我的小助手打电话把情况告诉爸爸，爸爸马上赶到，接了我去看了医生，回家吃了药好好休息，第二天我就全好了!

小手机伴随着我，在我学习和生活中发挥了许多不可磨灭的作用，所以我爱我的小手机!

导语：科学的进步和生活条件的改善导致了世界人口的迅速增长。以下是yuwenmi小编为大家整理的关于人口控制的英语作文，欢迎阅读与借鉴，谢谢!

Progress in science and the improvement of living conditions have led to the rapid growth of the world population. Modern medicine, for example, has made it possible for babies to grow up healthily and for people to live longer. With improved living conditions, particularly in the countryside, people tend to have larger families. As a result, the world population has increased so rapidly that it has now exceeded 6 billion.

But the overgrowth of population presents a threat to the existence of human society. A large population demands a GREat deal of food supply and shelter space. However, limited productivity and scarce world resources can hardly meet the needs of the ever-increasing population. Thus, in the long run, the overgrowth of the world population will only harm mankind.

To guarantee the steady development of human society, mankind must realize the consequences resulting from fast population growth and carry out a family planning programme. Only by adopting effective measures, can human society develop steadily and have a bright future.

【翻译】

科学的进步和生活条件的改善导致了世界人口的迅速增长。例如，现代医学使婴儿健康成长和人们长寿的可能性成为可能。随着生活条件的改善，特别是在农村，人们往往有更大的家庭。结果，世界人口增长如此迅速，现在已超过60亿。

但是人口的过度增长对人类社会的生存构成了威胁。大量的人口需要大量的食物供应和住房空间。然而，有限的生产力和稀缺的世界资源很难满足日益增长的人口需求。因此，从长远来看，世界人口的过度增长只会损害人类。

为了保障人类社会的稳定发展，人类必须认识到人口快速增长所带来的后果，实行计划生育。只有采取有效措施，人类社会才能稳步发展，前途光明。

Cell phone seems to be one of the most important inventions of 20 century.

Using cell phones to surf the Internet has become quite common in our daily

lives. Cell phone has exceeded its original function such as making phones calls

or sending message. Its multi-functions have make people’s tedious lives more

colorful. Many people, especially the young generation, have found that they can

not live without their cell phones. Many people feel uncomfortable in absence of

their cell phones. This may become a symptom called cell phone dependency.

First, many people have addicted to cell phones, they spend considerable

time and money on the phone, for it provide with numerous games and

applications. Some of them even use cell phones as computers that they keep the

phone open for all day long. As to some students, some of them even use the

phones to play games in the class, when they should focus on their study

instead. In this case, parents and teachers should limit the time that children

spending on the cell phones, for its have more disadvantages than

advantages.

Second, the dependency on cell phones has shown people’s anxiety towards to

their social interrelationship. A day without cell phone just feels like getting

lost in this big world. Every day, people tend to check their cell phones to see

if they have got any messages or surf the Internet, but the cell phone truly

affects their normal life.

There is no denying that cell phones have brought us considerable

convenient. However, we should be aware of the negative effects that cell phones

have brought to us. Just put down your cell phone for a while, and you will find

that without your phone life can still be wonderful, too.

英语四级明天就要开考了，小编整理了英语作文的预测作文，快来看看吧。

预测题目：

Directions: For this part, you are allowed 30 minutes to write a short essay based on the picture below. You should comment on the role of mobile phone in peoples communication. You are required to write at least 120 words but no more than 180 words.

参考范文:

The Role of Mobile Phone in Peoples Communication

The popularity of smartphones has exerted great influence on the way people communicate, so much so that an increasing number of individuals contend that face-to-face communication is being replaced by texts and images on the mobile phone.

There are more than one angle to consider this phenomenon. On one hand, it is pleasantly acknowledged that smartphones shorten the distance between families and friends. Even people from different sides of the globe can share pictures, feelings and thoughts through various types of apps on the phone, thus building a long-distance connection. On the other hand, as the picture warns us, too much smartphone addiction interferes with peoples real-life communication. Statistics show that over 70 percent of face-to-face communication consists of facial expressions and body language, which is why people should stay away from mobile phones when they have the chance to actually talk and communicate with others.

In a word, mobile phones act as an appropriate platform where people can always stay in tough however long the distance is, but a wise man should know when to put down his phone.

拓展阅读：英语作文模板

(1) 模版1

Different people have different views on_____.Some people think that_____,whereas others aegue that __________.

As far as I am concerned, I agree with the opinion that ___________.For one thing,I firmly believe that ___________.For another,_____________.Just think of________,who/which_______.

Taking all these factors into consideration,we may safely come to the conclusion that______.Only if_______can we _______,just as the saying goes,________________.

(2)模版2

In recent years there have been many reports of ________.It turns a new chapter of _________in China,and will have far-reaching effects in the forthcoming years.

The biggest benefit,in my eyes,is that_______.In addition,_______.Finally,______________.

Apart from the benefits mentioned above,we should also face several unavoidable challenges.In the first place,_____________.In the second place,________.What’s more,_______________.In summary,we should_______________.

(3)模版3

Nowadays more and more ______are commonly and widely used in everyday life,ranging from __________to_____________.

The popularity of _______will have a great influence on ______.On the one hand,_________.On the other hand,__________.

To conclude,____________are just like a double-edged sword.With them we may________.However,one point should be kept in mind that we should make sensible use,always being a master instead of slaving of them.

Nowadays, mobile phones become an important tool in modern life indispensable, some people use it to office, some people use it to chat, some people are beginning to send text messages with it...

We now phone really is also very useful, very convenient, no matter the ends of the earth, can be reached, the letters can be more convenient than before. It may be said "near", the world we live in on the mobile phone signal under siege. It has the function of strong, is not a tool and a...

But mobile phones bring us, all is not good, sometimes is bad. Mobile phone has changed many peoples ideas, it is also restricted the people,

Imagine what the poet tao yuanming described vividly in his "tori picking", will have a cell phone rings? Li bai in exclamation "bowed their heads and remembering home", someone will make a phone call for he will be home to have a look? Must not! And they have lots of classical poems, we are now living in an age of han han and guo jingming, no one to appreciate those celebrities yake excellent poems.

Mobile phones has both advantages and disadvantages, we should properly use cell phone to, can not afford to indulge in a world of mobile phone.

现如今，手机成为现代生活必不可少的一个重要工具，有的人用它办公，有的人用它聊天，有的人则用它劈劈啪啪地发短信……

我们现在的手机确实也很有用，很方便，不论天涯海角，都可以联系上，比以前的书信可方便多了。可谓“咫尺天涯”，我们生活的世界就在手机信号的包围之下。它的功能之强大，根本就不是一个工具所能及的了……

不过手机给我们带来的，不一定都是好处，有时也有坏处。手机改变了很多人的观念，它也可以说是制约了人们，

想像一下，诗人陶渊明在“采菊东篱下”的时候，会有手机铃声响起吗?李白在感叹“低头思故乡”的时候，会有人打电话让他会家看看吗?一定没有吧!而他们却有许许多多的经典诗作，我们现在却生活在韩寒和郭敬明的时代，再也没有人去欣赏那些名人雅客的优秀诗作了。

手机有利也有弊，我们要恰当地利用手机才对呢，可不能沉迷在手机的世界里了。

Population control

Progress in science and the improvement of living conditions have led to the rapid growth of the world population. Modern medicine, for example, has made it possible for babies to grow up healthily and for people to live longer. With improved living conditions, particularly in the countryside, people tend to have larger families. As a result, the world population has increased so rapidly that it has now exceeded 6 billion.

But the overgrowth of population presents a threat to the existence of human society. A large population demands a GREat deal of food supply and shelter space. However, limited productivity and scarce world resources can hardly meet the needs of the ever-increasing population. Thus, in the long run, the overgrowth of the world population will only harm mankind.

To guarantee the steady development of human society, mankind must realize the consequences resulting from fast population growth and carry out a family planning programme. Only by adopting effective measures, can human society develop steadily and have a bright future.

科学的进步和生活条件的改善有LED到世界人口的快速增长。例如，现代医学，可以使幼儿健康成长，使人们活得更长命。随着生活条件的改善，特别是在农村地区，人们往往会有更大的家庭。作为一个结果，世界人口增长如此迅速，它现在已经超过6000000000。

但人口过度增长对人类社会的存在构成了威胁。大量的人口需要大量的食物供应和住房的空间。然而，有限的生产力几乎不能满足日益增长的人口需求。因此，从长远来看，过多的世界人口将会危害人类。

为了保证人类社会的稳定发展，人类必须意识到人口迅速增长所造成的后果，并开展计划生育。只有采取有效措施，人类社会才能稳步发展，有一个光明的未来。

[控制人口的英语作文

关于中学生使用手机

赞成意见：

1.现在是信息社会，手机是最快的信息交流的工具之一。

2.应充分利用好手机。如偶遇突发事故，可立即拨打手机求助。

3.可在每天学习之余利用手机游戏放松一下自己。

4.只要正确使用好手机，紧跟时间并无过错，追求时尚可以理解，但学习是首要任务。

反对意见：

1.学校已提供了公共电话，因此手机并不能带来更多的方便，而且花费较多。

2.若课堂接听手机会影响上课。

3.学生玩手机游戏或接发短信，将无法集中精力学习。

参考作文：

Nowadays mobile phones are becoming more and more popular among the middle school students. Some students think that it is easy to use them to keep in touch with parents and classmates.Also，they can be used to listen to music or take photos. But others think that we dont need to talk with parents and classmates with mobile phones，because we meet them every day. And mobile phones may influence our study。

In my opinion，its not wrong to follow the fashion，but the most important thing is how to use the mobile phone in a right way。

Today, more and more middle school students have their own mobile phones. As a student, I think it’s good to have a mobile phone, because mobile phones can offer a lot of convenience. And students can send short messages to their parents when they are in trouble or not at home.

In fact, if students use mobile phones in right ways, mobile phones will help us, such as we can use mobile phones to look up new words. But it can also bring some trouble. For example, many students use their mobiles to listen to music in class. They don’t listen to the teachers carefully. And many students send messages in class.

In my opinion, it’s not right to use mobile phones in school. We should try our best to use mobile phones in right ways.

导语：现如今，几乎男女老少人手一支手机，下面是yuwenmi小编为大家整理的优秀作文，欢迎阅读与借鉴，谢谢!

As is known to all, the cellphone is very widely used, especially by teenagers who live the life “on the go”. They think it a useful tool for daily life, so they want to have one.

Many students think if they have a cellphone, they can keep in touch with their families and friends. They think owing a cellphone is good for their life. Some parents also share the same idea.

However, some people don’t agree that students should bring cellphones to school. First, they think it is bad for the students’ health to use cellphones. Second, it will add burden to parents because students usually depend on their parents. Third, if students use cellphones in school, they may not keep their minds on their studies. They may spend most of their time sending text messages or playing games.

In my opinion, I think owing a cellphone is not a bad thing. However, we should use the cellphones at the right moment. In class, we should make full use of our time to study. Do not use cellphones in class to interrupt others. If in emergency, it is not a bad choice to use cellphones.

【参考译文】

众所周知，手机被广泛使用，尤其是那些过着“忙碌生活”的青少年。他们认为它是日常生活的有用工具，所以他们想要一个。

许多学生认为，如果他们有手机，他们可以与家人和朋友保持联系。他们认为拥有手机对他们的生活有好处。有些家长也有同样的想法。

然而，有些人不同意学生带手机去学校。首先，他们认为使用手机对学生的健康有害。第二，它会给父母增加负担，因为学生通常依赖父母。第三，如果学生在学校里使用手机，他们就不会把心思放在学习上。他们可能大部分时间都在发短信或玩游戏。

在我看来，我认为手机并不是一件坏事。然而，我们应该在适当的时候使用手机。在课堂上，我们应该充分利用我们的时间学习。不要在课堂上使用手机打断别人。如果在紧急情况下，使用手机不是一个糟糕的选择。

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Today, we talk about mobile phones, and as mobile phones are growing, more and more people are using mobile phones, which brings us a lot of convenience. There are also countless people who are addicted to mobile phones, especially small-school students, and i dont really object to mobile phones, and mobile phones are a good relaxation tool. I dont think its bad to play a mobile phone, but the middle school students are self-control, and they cant control the length of time they spend on their phones. So im addicted to cell phones, so i suggest relaxing a mobile phone, but it requires parental supervision, proper play, and not obsolete. You can relax your emotions, so i suggest that every day you can come back to play for an hour a day and relax and dont be too old to play. Relaxing, relaxing, relaxing relaxation

Today, cellphone has been part of people’s live, they use cellphone to keep

in touch with friends and family, cellphone is also very helpful in people’s

work. As cellphone is so important, so people count on it so much, I think we

need to take the right attitude towards cellphone.

Teenagers especially like to use cellphone, they can’t live without

cellphone. Take my brother for example. He carries cellphone all the time, no

matter what he does. When we are talking to him, he just lows down his head and

says yes, I don’t think he is listening to us. When he is walking on the street,

he still keeps his eyes on the screen. My brother is a typical cellphone user, I

feel pity for him because he misses so many beautiful moment.

It is very a common situation for the young people to low down their heads

to check on the cellphone. They don’t have the real communicate with others, it

is not a good behavior. It is better to drop down the cellphone and see the

scenery around us.

Cell phones have become increasingly popular in china these days. wherever

you go you can see people using cell phones. many college students, even high

school students, have cell phones.

Cell phones have brought people a lot of benefits, but the most important

is that they are convenient. with cell phones in their hands, they can keep in

touch with anybody they want. if they want to get some information from the

internet, they can easily have their dream realized via cell phones too.

furthermore, if someone has a heart attack or a traffic accident, a call to

emergency hospital or to the police can quickly bring him the help he wants.

However, cell phones can also bring people problems. the most serious is

the electric wave radiation which is thought to be harmful to users brains.

another problem is that when people are having a meeting or having a class or at

a concert etc, the ring of the cell phone may interrupt others. so i think

people should use cellphones as little as possible and turn them off when they

are attending important meetings or attending classes.