坏处

Staying up late will be detrimental to human health, because the adrenal cortex hormone and growth hormone are all secreted during the night when people are sleeping. The former is secreted before dawn, which can promote the metabolism of carbohydrate in human body, and protect the development of muscle; while the latter is produced only after sleep, which can not only promote the growth and development of young people, but also can delay the aging process of the elderly. As a result, staying up late will cause a variety of harms to human body.

“哇，好多年没下雪了。今年居然下雪了，太棒了!”大家尽情地玩耍。因为多年不见雪，难免有些思念之情。这下就好了，我总可以对雪人了。我心里美滋滋地想着。

雪花飘呀飘，飘到了你的头上。就被误认为是头皮屑呢!雪还可以堆雪人，红红的鼻子，黑黑的眼睛真是可爱极了。大家可以来打雪仗，可以望着大雪纷飞、苍白的大地，显示它的美。

可是，有一首古诗是这样的：尽道丰年瑞，丰年事若何?长安有贫者，为瑞不宜多。是呀，在旧社会上还有这样的人啊。他们忍饥挨饿，连吃口饭都难。在这样的冰天雪地里，把庄稼都压着，岂不是不能维持生活了吗?那单薄的衣服，让他们就这一点一点的冻死，又能怎么办呢?

还有七老八十的老奶奶，看不见光明的盲人。又该怎么扫门前的雪呢?雪有它的好处，自然就有它的灾害。我希望全世界的人们在下一次雪的来临时都应该是高兴的。

没有了忍饥挨饿的人了，只有那高高兴兴在雪地里玩耍的孩子。雪，其实就是这样奇怪的。

Nowadays,the Internet has been playing an important role in our everyday life. There are many advantages in it. Firstly, … (第一). Secondly, ...(第二)Last but not least, …(最后也是最重要的是)

However, everything has two sides and the Internet is not an exception ,it has both advantage and disadvantage.There’re some disadvantages. …. (之一). What’s more, ….(之二). Moreover, …. (之三)

As far as I am concerned that it has more disadvantages than advantages.(依我看，它有更多好处多于坏处)… However，we also try to use it in a right way , not waste a lot of time in it .

撒谎只会给人带来坏处，不能给人带来好处的。这句话是我撒谎后的感想。

撒谎，在我的经历中出现很多次，印象最深的一次是我六岁的时候，爸爸妈妈去广州做生意，把我寄托在我大姑家，我就在附近的小学读一年级，每天只知道玩，在学校里每天都没有完成作业，只要老师问我：“震鋆，你的作业呢?”，我就会忐忑不安地说：“老师，我的作业忘记带来了。”

老师怀疑地看看我就摇摇头走了。一次次的撒谎成功，让我感到很幸 运，但有一次却让我十分难堪了，放学回家到大姑家门口，我看见表哥表姐好像在等什么人，就赶上前问：“你们在等什么呀?”他们很惊讶地望着我说：“震筠，你是不是作业没有做了?”我想了想笑着说：“有啊!”表姐说：“那为什么你的语 文 老师会到我们家来了呢?”我连忙进去一看，是语 文 老师坐在里面的沙发，见势不妙，赶紧说 ：“大姑，我上楼做作业了。”老师凝视着我：“你不是说你的作业放在家里吗?拿来给我看看。”我沮丧地说：“老师，我在学校的时候有带去的，只是放在抽屉的最底层，没有看见，后来想拿给你看，可是忘记了。”我说的声音越来越小，头也低着，不敢看到老师的眼睛，老师说：“那好吧，你明天一定要把作业给我看哦，我看你这张脸很老实不会骗人吧!”那是我非常惭愧，恨不得把头钻到地里面去了。

我一直有一个坏毛病，就是撒谎。为了让我改掉这个坏毛病，爸爸妈妈采取了许多方法，如：让我写检讨，罚我打扫卫生，罚我抄课文，可是都没有用。每次在爸爸妈妈的“逼供”时，谎话就会不由自主的说出来，在被爸爸妈妈戳穿后，我就又会挨一顿重罚。

我说谎就像说话一样面不改色，心不跳。现在我知道了诚实的重要性了，撒谎是没有一点好处的。我要好好控制自己的谎言，决不让它再从我的嘴里溜出来，我敢说我说话是认真的!

我提醒各位朋友，撒谎坏处多，千万不要撒谎。

在我们生活的现实世界以外，有一个神奇的网络世界，你知道吗?这个世界可是太有趣了。不信你就随着我的笔墨到网络世界去转一转。

应该承认，网络上也有许多不好的东西。有的人通过网络发布一些黄色、淫秽等不健康的东西，诱惑青少年;有的人在网上设置病毒程序，使许多人的电脑资料丢失、电脑死机。还有的人通过网络散布反动的东西，就象邪教“xx”一样，它们通过网络发布信息，鼓动它的信徒聚众闹事，同政府相对抗。这些都是我们这些小朋友需要引起警觉的，我们现在还缺少分辨是非的能力，对这些东西有时候还可能感到好奇，这就需要我们多向大人们请教、学习，知道那些东西是我们应该看的，那些是需要回避的。有的小朋友因为玩网上游戏，耽误了学习，这都是需要我们每一个小朋友引起警觉的。

总之，网络对我们的影响是巨大的。我们今天生活的时代就是一个网络的时代，网络影响着我们的生活，改变着人们对世界的看法。作为新时代的少年，必须学会使用网络，使网络能够为我们的学习服务，同时要避免迷恋于网络。

qq，一说到这两个字母，大概我们的脑海里面就会出现一只可爱的小企鹅在晃来晃去。在信息时代的今天，功能强大、用途广泛的qq，已逐渐普及到人们的生活和工作中，有些人甚至以离不开qq。

在当今的时代中，人们的沟通方式太多了，不在局限于面对面的聊天，qq就是一个很好的工具，它可以让你和朋友聊天，当然如果你想看到画面和听到声音，可以通过视频功能来实现，又或是你的朋友不在线，你也可以给他(她)留言，还可以发送离线文件。她还可以让我们认识五彩缤纷的世界。

qq带来的不仅有好处，而且也有坏处。也有很多人被qq所吸引了。例如，打牌，打麻将。妈妈给我讲过一个故事，故事是这样的：一天清晨，当人们从睡梦中醒来，面对新的一天和新的生活时，一个坐在电脑前玩了一整夜qq游戏的少年也想站起来活动一下筋骨，他刚从椅子上站起来，就突然栽倒了，在一旁的伙伴很快地去扶他，却怎么也扶不起来，一个年轻的生命就这样永远地消逝了。我问妈妈这个少年为什么会突然死亡呢?妈妈回答说：是长时间上网加之无充足的食物能量补给引起的极度疲劳造成的死亡。我感到很震惊，我想为了自己的身体健康，我以后一定要严格控制自己上网的时间和次数，不能长时间的玩游戏、看电视等。

有一次，我还问过邻居家的医生：长时间上网对身体有什么不好的影响?医生告诉我，长时间盯着电脑屏幕容易造成头痛、视力下降和免疫系统受损;长时间敲打键盘，会对手指、手腕、肩部、颈部造成损伤;长时间坐着，可能造成腰部的不适。另外，电脑辐射也是不能忽视的。

随着社会的不断发展，网络在我们的生活中已经变得不可或缺，qq功能强大、用途广泛，我们小学生们都在使用它，希望大家能用qq多做有益的事情，取之长，避之短，让qq和网络真正为我们的生活和学习服务。

筷子是中国人的主要餐具，是中国饮食文化的重要体现，但近年来，当古老的传统遇到现代社会“快速、便捷、卫生”的价值观时，国人对这项餐具的耗费让人触目惊心。随着人们的生活节奏大大加快，忙着上班，忙着上学，忙着赚钱，忙着休闲……在忙碌中，“一次性”用品越来越受到青睐。在中国大多数的餐馆，无论档次高低，一次性筷子早已成了必不可少的餐具。一次性筷子又称“卫生筷”、“方便筷”，是人类社会生活节奏加快和社会服务发到一定阶段的产物，曾被视为一种文明标志。然而，现实表明，其所谓“卫生”和“方便”不过是人们一种虚幻的心理期望，它的使用与“折枝为筷”本质相同，与每餐清洗消毒、不需要众多生产基地和繁琐运送过程的多次筷子比，即不卫生也不方便。它的生产，是一种野蛮的掠夺行为，它的储运中伴随着难于避免的污染，而其作用，显然是不清洁和浪费。一次性筷子给我们带来的无穷后患:1, 一次性筷子给人们的生活的确带来方便，然而，从环保的角度看，在这方便、快捷的背后是大量资源的浪费与垃圾的堆积。据统计，中国每年消耗一次性木筷子800亿双，首尾相接，可以从地球往返月球21次， 可以铺满363个天安门广场。每回收3双一次性筷子，就可以生产一张A4纸。按50人的公司的用纸量计算，做出的纸大概可以使用55万年。每年为生产一次性筷子要耗费木材166万立方米，需要砍伐大约2500万棵大树，减少森林面积200万立方米。而一棵生长了20年的大树，仅能制成3000-4000双筷子。山西首府太原市有近万家大大小小的饭店，以半数使用一次木筷且平均每天每个饭店接待100位客人的保守估算，全市一天也要用掉50万双一次性木筷!

就是说，仅太原一个城市，人们每天就餐的同时也吞噬下相等于125至170棵大树!

以中国宽广的森林定义和世界首位的人工林面积，其森林覆盖率也仅为18。21%，居世界第130位。当中还存在森林质量不高，如林种单一、树龄低等问题。中国长期以来的农业、经济发展，人口持续增加已对中国的森林造成了无法弥补的破坏。因为十三亿人每日就餐的需要也要吃进去那么多的树木，这种不必要的浪费既让人痛心又无比荒唐。在中国，一次性筷子在使用后是不进行回收的。这与一次性筷子在日本被回收造纸的情况差别很大。中国政府也已经认识到相关的木材浪费问题。2004年取消一次性木筷出口退税(13%)并征收17%的增值税;2006年4月1日对一次性筷子增收5%消费税;2006年11月1日又征收10%出口关税。一次性筷子大概已成为我国流转税负最重的农林产品之一。一次性筷子还有可能产生“温室效应”。因为恶性循环的关系，树少了，二氧化碳会增多，大气层会加厚，热量难以散开，就产生了“温室效应”。2，从健康角度来看，选择一次性筷子就等于放弃健康。正规的一次性筷子所用的原料都是质地比较好的木材，不需要特殊加工。但是现在很多小作坊为了降低成本，使用的都是劣质木材，看上去“肤色”较黑，这不太美的颜色当然无法受到食用者的青睐。因此，小作坊生产者经加工处理后的一次性筷子，马上就会“改头换面”，堂而皇之地登上了人们的餐桌。一次性筷子有两种制作方法，固态的制作方式是通过硫磺的熏蒸漂白。经过硫磺气体漂白的筷子，其二氧化硫会严重超标，而二氧化硫的特性之一就是遇冷会凝固。因此，人们用这种筷子进餐时，二氧化硫随着空气的流动很容易凝固至呼吸道，咳嗽、哮喘等呼吸道疾病便随之而来。除此以外，硫磺中含有重金属，例如:铅、汞等……重金属在人体内部是可以堆积的，长时间的累积会造成铅中毒或汞中毒。 液态加工的筷子的方法是通过氯气或者双氧水漂白，特别是氯气，它不仅容易造成人体内的胆结石，而且含有曾经让人们谈之色变的二恶英。至于竹筷子，为了去除筷子的毛刺，令其看起来光滑。白皙，制作者将其放入滑石粉中，通过摩擦对筷子进行加工。但滑石粉容易增加人体患胆结石的机率。尽管不正规厂家生产的一次性筷子危害性很大，但到目前为止，我国对一次性筷子仍没有出台具体的卫生检验的标准。因此，一次性筷子隐藏三大危害: 损害呼吸功能：一次性筷子制作过程中须经过硫磺熏蒸，所以在使用过程中遇热会释放SO2，侵蚀呼吸黏膜;损害消化功能：一次性筷子在制作过程中用双氧水漂白，双氧水具有强烈的腐蚀性，对口腔、食道，甚至肠胃造成腐蚀，打磨过程中使用滑石粉，消除不干净，在人体内慢慢累积，会使人患上胆结石; 病菌感染：经过消毒的一次性筷子保质期最长为4个月，一旦过了保质期则很可能带上黄色葡萄菌。大肠杆菌及肝炎等。 3，从人类心理的角度来看，长期使用一次性的用品不利于青少年好心态的养成。现在不仅有一次性碗筷，还有一次性饮料杯、一次性内衣、一次性相机等等，一次性的用品队列越来越长，使用这些一次性用品的另一个危害就是让我们养成了用了就扔的坏习惯，这绝对是不利用青少年心态健康成长的，这也是与倡导永续地球相违背的。这几年自备环保筷的观念也渐渐在国内传播开来。国内许多城市就有由许多志愿者发动的“筷行动“，除了宣导民众自行携带环保筷，也开始倡议餐饮业者提供环保消毒筷，以达到环保、健康的目的。让我们也加入他们的行列吧!

Oh! What you said is right. It has lots of advantages. But do you know the internet rumors. I think if everyone can publish news on the internet .there will be more rumors. Let me introduce the harm about it to you.The spread of the Internet rumors should be based on three conditions： Firstly, the Internet has the widespread availability and convenience. Compared with other channels of transmission, the Internet has fast speed and wide extent. And spreader can lower the cost of distributing rumors. Secondly, there are many ill-intentioned people existing on the Internet, as snakes in the grass. These people are always hopping to draw others attention or even disturb public orders via rumors. They are selfish. Thirdly, the anonymity of the Internet enables some spreaders to avoid being punished for their evildoings.

So we need to limit some speaking rights of people to avoid troubles for society.

[提高网络安全作文

生理上坏处是辐射，心理上的分为网上不健康内容和游戏，不健康内容你自己想得出来吧，就是些暴力，淫秽的，但是辩论上说这个会给对方反驳说那是网络上的而不是电脑的坏处，电脑只是一个媒介。

游戏分为单机游戏和网络游戏。而电脑最大的坏处就是其所带的游戏对人的影响。

首先，玩电脑游戏，是需要时间的，如果玩电脑游戏的时间过多的话，那么，我们用来学习的时间就必然会大大地减少，除非是不用学习一看就会的天才，就我们这些普通人而言，学习成绩不下降才怪呢！

其次，玩电脑游戏，尤其是长时间地玩，对我们的视力和健康十分有害，当你沉迷在电脑游戏带给你的快乐中时，你的视力也在不知不觉中一天天地衰退，等你最后醒悟时，已经来不及了！可能还要搭上你曾经拥有过的健康身体。

再次，玩电脑游戏，特别浪费金钱，作为初学生的我们，零花钱主要依赖于我们的父母大人所赐，试想一下，谁家的父母愿意很爽快地给钱让我们去上网玩游戏呢？所以，为了能够进网吧上网玩电脑游戏，我们必然会巧立名目向我们的父母索取，要不然就东拼西凑、挖空心思地弄钱，哪里还有心思学习，有的同学甚至因此而走上了犯罪的不归路，这又是何苦呢？

电脑游戏还有很多的危害，我就不再一一列举了。

也许有的人可能会不服气，你说了那么多电脑游戏的害处，难道电脑游戏就没有一点益处了吗？起码玩电脑游戏可以锻炼、提高我们的反应能力和手脑的快速配合能力，可以帮助我们了解电脑、认识电脑、学习电脑，可以使我们在紧张的学习中得到放松，好处还是很多的嘛！何况，很多的大人不是照样沉迷在电脑游戏中吗？

电脑有利又有弊，同学们要正确对待网络！

[网络的利与弊的作文三篇

As we all know, the 21st century of the Internet. With the development of the Internet, more and more people begin to use it to enjoy themselves or do something special. However, every coin has two sides , the Internet also has its own advantages and disadvantages.

Our life has a great change since we use the Internet. We benefit a lot from the Internet. As for me, I am accustomed to going shopping on the Internet, which is a good way to save my time and money. Many people do the same as me. What’s more, the Internet makes it convenient for us to make friends and get people closed . We can also go through the news all over the world. The Internet not only broaden our view but also assist us to know more about the world . On the other hand , more and more teenagers are addicted to virtual world and they all play computer games everyday they want, leading to a terrible result.

In conclusion, we should have selective using the Internet and keep away from the virtual world. Don’t always use the Internet to chew the fat and do something meaningful.

[网络的坏处英语作文

a.体育运动的好处

b. 体育运动可能带来的副作用

c. 我参加体育活动的体会

Sports do us good in many respects (TS). It goes without saying that taking exercises can build up our physical strength. In collective sports like basketball, volleyball, or football, we will learn the importance of cooperation. While taking part in sports game, we will try our best to win and arouse ourselves the competitive spirit. Sports can also help us relax after a period of exhausting work. However, as the saying goes, "there are two sides to everything", and sports is without exception. We may hurt other players or ourselves if we are not careful enough when participating in sports activities. Whats more, excessive or severe training can do harm to our health.

My participation in sports tells me that sports can make us healthy both physically and psychologically. It is also a good way for people to know each other and can promote friendship between people. So long as we are carefully enough, sports can do us nothing but good.

[中考英语的作文——体育运动的好处和坏处

Do you always work or study until midnight?

Do you often hang out or spend much time in pubs at late night?

If you answered yes to either of these questions, you are unfortunately one of the large groups of people who always stay up late. Because of the fierce competition in the society, it seems that everyone has endless work to do and twenty-four hours per day is not enough. Therefore, an increasing number of people stay up late in order to finish the mountainous work. Besides, lots of young people enjoy entertaining at late night. However, many of them are still not aware of the bad effects of staying up late. In fact, it does severe harm to us in three aspects, namely physical health, work efficiency and mental stress.

In the first place, staying up late badly impacts on our physical health condition. The human adrenal cortex hormone and growth hormone, which are vital substances for human body, only secrete at night. The former secretes before the dawn facilitating the carbohydrate metabolism and protecting the development of muscle function. The latter only secretes after sleeping. It can improve the growth of the young and slow down the aging of the elderly. However, if people often stay up late, the secretion of these two substances will be gravely impacted. Finally, our health condition will be degraded. It can cause a variety of harms to human body. Normally, frequent staying up late will lead to fatigue and degraded immunity. People may easily get sick when the weather gets a little bit colder or hotter. In addition, it can also cause headache. People may feel heavy in the brain and dizzy for a whole day. Besides, the fertility of both male and female will be impacted. For women, it will affect the secretion of female hormones and the quality of ova. It also tends to affect the menstrual cycle. For men, both the quality and quantity of sperm will be impacted. What is more, staying up late can also damage people’s eyesight, skin and memory capacity, and cause black eyes as well.

Furthermore, it negatively impacts on the work efficiency. On the one hand, owing to the discomfort of your health as mentioned above, you may feel distracted from the work. On the other hand, because of the decrease of the memory capacity, your work efficiency will be lower, which means that you may not complete the things as you want. Assume that you are a university student and you plan to review for your psychology examination next week after tomorrow’s class. Nevertheless, you stayed up late yesterday for some reason. Therefore, you probably be late for tomorrow’s class or even skip it. Thus, you must find other time to compensate for it. Afterwards, when preparing your examination, you may feel headache and cannot concentrate on it, thus having difficulty memorizing and understanding the psychological terms and principles. Therefore, your schedule for reviewing chapter 2 and chapter3 will be changed. You can only review chapter 2 and may not finish chapter 3. However, in order to finish reviewing on time, you are more than likely to stay up late again. Then, you will be in the vicious cycle and your work efficiency will be lower and lower.

What is also noticeable is that staying up late can bring about mental stress. Since your work efficiency is lower, you probably doubt yourself whether you are a capable person or not. You may think you are not so smart as others and even fear yourself that you can hardly get a good grade in your psychology examination, which makes you feel more anxious and upset. Besides, if you frequently stay up late, you definitely look tired and in low spirits. Therefore, when working on a group project, maybe nobody wants to be in the same group with you, a low-efficient and anxious person. Thus, you will feel separated from others, which possibly makes you more stressed and upset.

In conclusion, although we have a lot of work to do and various activities to participate in, staying up late is by no means a good choice for us. It badly impacts on our physical health, lowers our work efficiency and makes us stressed and anxious. Faced with too much work, we should make good arrangements in advance and maintain a healthy lifestyle.

1)It has more disadvantages than advantages.

2)It does us much harm.

3)It is harmful to us.

例如：

However，everything divides into two.Television can also be harmful to us.It can do harm to our health and make us lazy if we spend too much time watching television.

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作文导读：体育运动的好处和坏处(Positive and Negative Aspects of Sports) a. 体育运动的好处 b. 体育运动可能带来的副作用 c. 我参加体育活动的体会

中考英语作文范文——体育运动的好处和坏处

体育运动的好处和坏处(Positive and Negative Aspects of Sports) 作文

a. 体育运动的好处

b. 体育运动可能带来的副作用

c. 我参加体育活动的体会

Sports do us good in many respects (TS). It goes without saying that taking exercises can build up our physical strength. In collective sports like basketball, volleyball, or football, we will learn the importance of cooperation. While taking part in sports game, we will try our best to win and arouse ourselves the competitive spirit. Sports can also help us relax after a period of exhausting work. However, as the saying goes, "there are two sides to everything", and sports is without exception. We may hurt other players or ourselves if we are not careful enough when participating in sports activities. Whats more, excessive or severe training can do harm to our health.

My participation in sports tells me that sports can make us healthy both physically and psychologically. It is also a good way for people to know each other and can promote friendship between people. So long as we are carefully enough, sports can do us nothing but good.

体育在许多方面都很好（不好）。不用说，锻炼能增强体力。在集体运动中如篮球、排球、足球等，我们将学习合作的重要性。在参加体育比赛时，我们会尽我们最大的努力去赢得和激发自己的竞争精神。运动也可以帮助我们放松后一段时间的疲惫工作。然而，俗话说，“凡事都有两面性”，体育也不例外。如果参加体育活动，我们可能会伤害其他球员或自己，如果我们不够小心的话。更严重的培训会对我们的健康造成危害。

我的体育运动告诉我，体育可以使我们健康的身体和心理。这也是一个很好的方式，人们可以彼此了解，可以促进人民之间的友谊。只要我们够细心，运动能做我们什么都不做。

A, such as physical and photos of the gap is too wide. Online shopping is only seeing the picture, to the arrival of goods in your hand, you will feel different from real. This is better to buy the rest assured in the Mall, because 100% is real.

Second, you need to add postage. In fact, this is not a disadvantage, because you need to go shopping is spending fare. Postage of online shopping it is quite cheap, but some shopkeepers are happy, willing to mail it for you, then you can even earn, 呵呵 ~

Third, not to try on. I never agreed with net purchase clothes and shoes. Because the clothes and shoes to try on yourself to know is that all right ~ if bought on the Internet are not appropriate, returns and more trouble to dropping said.

Fourth, network payment is not secure. Have heard people say Taobao, Alipay is vulnerable, so Ive always been shopping, saving into the Alipay, PayPal money is always empty in peacetime, huh. Not worry about rice is vulnerable, but everything be careful ~

With the development of the Internet and the popularization of computers,shopping on the Internet has become a commonplace in our life.Here consumers can buy almost everything they need.

Shopping on the Internet has a lot of advantages,of which the most important is perhaps its convenience.People dont have to waste a lot of their energy and precious time to go from one shop to another to choose the commodities they like.This is especially desirable to the old,the sick and the busy people who cannot go to the shops in person.The goods come in all shapes,sizes and colors on the Internet.All they need to do is to sit in front of their computers and click the mouses.The commodities they order will be delivered to them promptly.

一、问题的提出

我们家的很多东西都是塑料制品，如：凳子（有些是有些不是）、买菜用的口袋、笔筒、饭盒、香皂盒等物品。于是我想了解一下塑料制品有什么好处与坏处。

二、研究方法

1.上网查找有关塑料是由什么合成的。

2.自己总结塑料的好处与坏处。

三、研究情况和资料整理

信息渠道涉及的方面具体内容

上网塑料是由什么合成的塑料为合成的高分子化合物，可以自由改变形体样式。是利用单体原料以合成或缩合反应聚合而成的材料，由合成树脂及填料、增塑剂、稳定剂、润滑剂、色料等添加剂组成的，它的主要成分是合成树脂。树脂约占塑料总重量的40％～100％。塑料的基本性能主要决定于树脂的本性，但添加剂也起着重要作用。有些塑料基本上是由合成树脂所组成，不含或少含添加剂，如有机玻璃、聚苯乙烯等。因此，塑料和树脂这两个名词也常混用。

自己总结塑料的好处1、大部分塑料的抗腐蚀能力强，不与酸、碱反应。

2、塑料制造成本低。

3、容易被塑制成不同形状。

4、是良好的绝缘体。

5、塑料可以用于制备燃料油和燃料气，这样可以降低原油消耗。

自己总结塑料的坏处1、回收利用废弃塑料时，分类十分困难，而且经济上不合算。

2、塑料容易燃烧，燃烧时产生有毒气体。

3、塑料是由石油炼制的产品制成的，石油资源是有限的。

四、结论

1.建议大家最好不要用塑料制品，因为塑料制品由许多化合物质组成，会对身体不好。

2.建议大家买菜时最好用菜篮，不要用塑料口袋，因为这样更环保。

Mobile phones are the main invention of modern technology.They are completely part of our daily lives If we look at our society,we can see that all kinds of people are using mobile phones.Maybe they have many advantages,but they also experience drawbacks.

The main advantage of mobile phones is that people can use them anytime and anywhere,so they can use one for an emergency.in addition,people can access the internet whenever they use the mobile phones,so business people can use tem at work to get information from internet more convenietly Moreover,it is very easy to send messages to your friends.Mobile phones can make people keep intimacy in spite of long distance.Mobile phones are turning the world into a small vilage where we can commmunicate with each other easily and simply.Finally,another point in favour of mobile phonesis that you can avoid disturbing anyone when he is sleeping orworking because in that case people often turn off their mobile phones.

On the other hand,there are some drawbacks,too.Firstly,the most important disadvantage is the unknown effects on health in case of over-use.Scientists found that mobile phones can cause brain cancer.if you talk for so many hours,you are going to have headacheand ear problems.Secondly,the mobile phone stimulate home for the high cost of communication.If you are in 3 membered family,you would spend a lot of money on mobile phone.Because tow to three of family have it, it cost about 150-200D in a month.Furthermore,the inappropriate use of mobile phones could be bothersome.for example,it is very imppropriate to here a mobile phone ringing during a formal conversation,during a lesson,in a libraryor in a cinema.Finally,mobile phones waste people too much time.An Amerian survey show that the teen-ager will spend average 2 hours to send messagesevery day.

In conclusion, there are some benefits and drawbacks to mobile phones.personally,i dont like mobile phonesvery much,but i need use them.In my opion, mobile phones are good only if you use them correctly and politely,as in this case,all technology is beneficial!

手机是现代技术的主要发明。如果我们看看我们的社会，他们完全是我们日常生活的一部分，我们可以看到各种各样的人使用手机。也许他们有许多优点，但是它们也有不好之处。

移动电话的主要优点是，人们可以随时随地使用他们，所以在紧急情况下可以使用。此外，当人们使用手机访问互联网时，那么业务使用系统在工作中更实惠，而且能从互联网中获取信息，它也很容易将消息发送给你的朋友。手机可以使人们保持亲密关系，即时长期。手机是把世界变成一个小村庄里我们可以互相沟通更容易和简单。最后，另一个点有利于移动电话，当他睡觉或者工作时，你可以避免任何人打扰，因为在这种情况下，人们常常关掉手机。

另一方面，也有一些缺点。首先，最重要的缺点是过度使用手机，会对健康有一定的影响。科学家发现，手机会引发脑癌。如果你讲这么多小时，你将会有耳疾。其次，手机费用成本高。如果你是3个人的家庭，你会在手机上花很多钱。因为两到三个人的家庭拥有它，在一个月的费用约150 - 200兆。此外，手机的使用不当可能会麻烦一些。例如，在正式谈话，在上课中，在图书馆或者在一家电影院，手机铃声响不适当的。最后，移动电话的人浪费太多时间。经美国调查表明，青少年将花费平均一天2小时在使用手机上。

总之，移动电话有一些好处和缺点。就我个人而言，我不喜欢移动电话品种不多，但我需要使用它们。在我看来，如果你正确地、有礼貌地使用他们的手机是好的，在这种情况下，所有的技术都是有益的！

[手机的好处与坏处高考英语满分作文

我们出生一个互联网的世界，所有人的生活逐渐碎片化了。生活像是在排队，而着排队的目的就是——死亡，有人无聊唱了一首歌成了歌唱家，有人无聊画了一副画成了画家。而这互联网像是插队，许多人太依赖互联网，其实离死亡更进一步了。

当然互联网也有很大的优点，比如购物，以前没有互联网的时候，商家和消费者之间的交易信息不对称，有了互联网以后，商家通过互联网的大数据了解客户的需求，消费者通过互联网了解的更多的商品和价格信息。也比如逛街，以前没有互联网的时候，出门逛街要不带着厚厚的一叠钱，要不带着五彩缤纷的银行卡，有了互联网，我们只要带个手机，用上面的支付宝，微信支付就可以了。

在古代时，人们用飞鸽传书、驿站、烽火塔来传递信息，后来19世纪，人们开始用电话来传递信息，现在只有“滴滴”三秒搞定。

但是，本是天使的互联网用多了就会成为黑暗的魔鬼吞噬你的生命，太依赖互联网的人，一天要用至少6小时以上，占一天的四分之一时间，占醒着的七分之三！所以不要过度的使用互联网。

互联网有好有坏，我们应该合理的用好互联网，不要沉迷其中！沉迷虚拟世界！为了你的生命，请少用互联网吧！

我喜欢手机，手机能给我带来快乐。

我喜欢妈妈的手机，它可以给我解决不会的难题。

我喜欢爸爸的手机，它能在我不开心的时候给我播放优美旋律的歌曲。

我喜欢老师的手机。不仅仅是因为老师的手机外壳是一个光头强的图片。更主要的是老师的手机每次给妈妈打电话后，妈妈都会夸我一次。听到妈妈手机里老师鼓励我的声音，看到妈妈眼睛眯成一条线的样子。我心里美滋滋的，比吃了一个大鸡腿还开心。

我讨厌手机。

我讨厌邻居王叔叔的手机，他的儿子天天用它打“王者荣耀”。他才七岁就已经近视成300多度了。

我讨厌我姐姐的手机。她每次都在我学习的时候用手机拍抖音，手机里的她那么的不真实。更可笑的是还有几百个粉丝给她点赞。

我最最讨厌的是我大伯的手机，每次他来爷爷家都不好好地陪爷爷奶奶吃饭、聊天。而是头不抬、眼不睁地玩他的手机。大伯来的时候和走的时候都是一个样子，眼睛一直盯在手机上面。

现在的我都已经糊涂啦！我不知道手机是好还是坏？你能告诉我吗？