① 英语四级作文
Long Holidays
Generally speaking, long holidays are good for us college students. On the one hand, we have a lot of time to study by ourselves and thus improve weaknesses and further develop strengths. On the other hand, we can take part-time jobs, which can make us realize responsibility and make ourselves better prepared for social life.
But every coin has two sides. Some students fail to make good use of their time and they are addicted to various computer games. I am afraid that they are likely to ruin themselves in this way.
As far as I am concerned, I will try to make the best use of my precious time. I will spend most of my holidays studying English for that I am very poor at it. In addition, I will take a part-time job as private teacher. By this means, I can earn some money and put my knowledge into practice as well. Long Holidays
Generally speaking, long holidays are good for us college students. On the one hand, we have a lot of time to study by ourselves and thus improve weaknesses and further develop strengths. On the other hand, we can take part-time jobs, which can make us realize responsibility and make ourselves better prepared for social life.
But every coin has two sides. Some students fail to make good use of their time and they are addicted to various computer games. I am afraid that they are likely to ruin themselves in this way.
As far as I am concerned, I will try to make the best use of my precious time. I will spend most of my holidays studying English for that I am very poor at it. In addition, I will take a part-time job as private teacher. By this means, I can earn some money and put my knowledge into practice as well.
② 关于网络科技的英语四级优秀作文
the era of information and technology, the Internet plays an important role in our
society. However, people’s opinions are still divided on this point. Those who are in favor of the Internet claim that it has a lot of advantages. Firstly, information searching is no longer a tough job with the help of all kinds of search engines. Secondly, we can contact friends or business partners via e-mails or software such as Internet Meeting and Yahoo Messenger.
Those who are opposed to the Internet hold that its disadvantages are numerous. In the first place, using the Internet costs considerable time, money and energy, especially for those with poor self-control. In the second place, increasing young people are inlged in online games and unhealthy information, which are extremely harmful to their development.
③ 英语四级作文范文（两篇）
Credit Cards
Personal credit cards are becoming more common in China. Banks and other financial institutions are encouraging their customers to change the way they buy things. Credit cards， otherwise known as “ money”， are being offered on very good terms to encourage the change. Consumers will be able to “buy now， pay later”， and many see this as an advantage.
But people need to be careful. There are dangers associated with credit cards. Some people find it very easy to exceed their budget. They are tempted to purchase goods that they do not really need， and can become quickly overburdened by debt. The credit cards often charge a high rate of interest， which exacerbates the problems for these people.
However， used wisely credit cards can improve the quality of people’s lives. They can give people access to money to meet sudden unplanned expenses. Properly handled， they can let people control their expenditure and the monthly statements provide a record of where their money has gone.
④ 一篇英语四级作文。
It pays to be honest
Look around us and you'll see dishonest cases fill our world.
Students tend to cheat in their exams;Many parents even get their kids to deceive the bus-assistants by pretending shorter hoping to escape the fee .The great majority of us are required to live a life of constant plicity nowadays. But all of this brings us nothing but misfortune.
Living with integrity means being an open, honest person. It means saying what you think because you shouldn’ hide what you believe. If you are not true to yourself – if you are dishonest, if you hide part of yourself, either as a defense mechanism or to get a promotion or make money, you will create what I have heard called an ‘inner darkness,’ and this will haunt you for life.
It pays to be honest.You might be able to succeed in some senses by being dishonest and plicitous, but in the end you will be unable to face yourself, and if you cannot look in the mirror with a clear conscience, how can you be yourself?
In a word,staying honest whatever it takes and in return you are to get all you deserve in the end,for integrity of your mind promises an intact soul.
⑤ 英语四级作文
批驳观点式
A．一个错误观点。
B． 我不同意。
Many people argue that 错误观点。By saying that,
they mean 对这个观点的进一步解释。An example
they have presented is that 一个例子。（According to
a survey performed by X on a group of Y, almost 80%
of them 赞成这个错误观点或者受到这个错误观点的影
响）。
There might be some element of truth in these
people’s belief. But if we consider it in depth, we will
feel no reservation to conclude that 与错误观点相反的
观点。There are a number of reasons behind my
belief. (以下参照辩论文的议论文写法)。
写作模板——图表式作文
It is obvious in the graphic/table that the
rate/number/amount of Y has undergone dramatic
changes. It has gone up/grown/fallen/dropped
considerably in recent years (as X varies). At the
point of X1, Y reaches its peak value of …(多少).
What is the reason for this change? Mainly there
are … (多少) reasons behind the situation reflected in
the graphic/table. First of all, …(第一个原因). More
importantly, …(第二个原因). Most important of
all, …(第三个原因).
From the above discussions, we have enough reason
to predict what will happen in the near future. The
trend described in the graphic/table will continue for
quite a long time (if necessary measures are not
taken括号里的使用于那些不太好的变化趋势).
模版3
There is no consensus of opinions among people
about X（争论的焦点）。Some people are of the
view that 观点1，while others take an opposite side,
firmly believing that 观点2。As far as I am concerned,
the former/latter notion is preferable in many senses.
The reasons are obvious.
First of all, 论据1。
Furthermore, 论据2。
Among all of the supporting evidences, one is the
strongest. That is, 论据3。
A natural conclusion from the above discussion is that
总结观点。
As a college student, I am supposed to 表决心.
或 From above, we can predict that 预测
⑥ 英语四级作文
我加强英语的方法就是看英文资料片，辅以英语学习软件 然后找一家英语学习中心帮我练口语 我上的这家ABC先下在线口语课程都.好.公开，可以先Free轻松试听的，课程是帮我量身制定的，我觉得介格还是不错的 这样的学习也应该能够提供给你很大的进步 我就进步很多了..June, 00Dear Dawei, I understand that you are in a dilemma. Although so many graates are eager to set feet on their work-life road, there are still some who prefer to start their new life after gaining another degree to make better preparation for entering society. In my opinion, the latter are more admirable. You are good at all your courses these years, so if you do like to spend another two or three years on campus, you should stick to it. In today's society, the acevement and status you can get and the devotion you can make are no doubt in proportion to your ecational background and degrees, coupled with the efforts you put in them. If you want to stride to your destinations more smoothly and easily, why not head for the further study courageously?Wchever you choose, I firmly believe your instry will ensure your success. After all, it is you who have the final on the final choice.Best wishes.Yours sincerely Peter
⑦ 英语四级作文
母亲节
Mother"s Day was first suggested in the United States in 1872 by Julia Ward Howe as a day dedicated to peace. A campaign to establish a National Mother"s Day was begun in 1907. It was successful, by 1911 Mother"s Day was celebrated in almost every state in recognition of[1] the influence mothers have in the making of better citizens.
In 1914, President Woodrow Wilson proclaimed that the birthday of Mrs. Anna Reeves Jarvis, the "mother of Mother"s Day[2] ", would become the National Mother"s Day of the United States. And that from then on, the second Sunday in May would be Mother"s Day in memory of the work Mrs. Jarvis had done to bring families together after the Civil war, her work to bring the whole North and South together, her work to honor all the mothers of America throughout history and on into the future, but most of all to honor Mrs. Anna Reeves Jarvis as America"s National Mother. President Wilson asked that the American people fly the United States flag from public buildings and homes on that day as he said, as a public expression of our love and reverence[3] for the mothers of our country.
Well, what value is Mother"s Day now? As the Congress said in 1914, it reminds people of[4] the influence mothers have had in the making of better citizens. Jarvis was one such mother. On Mother"s Day much attention is given to the important part that each mother plays in giving her children a sense of what is right and what is wrong, what is good behavior and what is bad.
If the observances[5] of Mother"s Day can even in a small way remind mothers of this, then this day will help both the families and the whole country.
⑧ 英语四级作文150字最佳6篇
距离2015年12月的大学英语四级考试越来越近，新东方在线为大家整理了英语四级作文预测：希望可以为大家带来帮助。
1、晕屏症—Cybersickness
随着智能时代的到来，越来越多的人不自觉的成为了新科技的奴隶，智能手机的使用尤能说明这一点。无论是上下班的路上，还是赋闲在家，无论是休闲娱乐，还是聊天购物，智能手机总是与我们形影不离，对于智能手机带给人们的便利之处我们不可否认，但是其弊端也日益显现，看看“低头族”“僵尸族”这些网络热词吧，从中我们不难发现无时无刻使用智能手机给我们造成的危害，但这些危害常常为沉迷于智能手机的人们所忽略。分析利弊，是英语四级作文的关键，只知其利，不知其弊，也不是一篇完美的作文。下面我们就来分享一篇文章——刷屏刷到吐你得“晕屏症”了(Do you suffer from cybersickness It causes nausea while scrolling on phones)，认识到智能手机可能会带给我们的危害，希望它能警醒我们，让我们能够更加合理的使用智能手机。
Do you suffer from cybersickness It causes nausea while scrolling on phones
The rise of mobile phones has been blamed for a number of social ills, but your smart phone may also be making you physically sick as well. Scientists have identified a condition called “cybersickness”, which they say is the digital version of motion sickness. The phenomenon, which affects up to 80 percent of the population who own smartphones or tablets, leads to feelings of nausea and unsteadiness. It is caused by seeing fast motion on a screen and covers anything from a car chase in a film to scrolling through web pages on your phone. The more realistic the visual content is, the higher your chances of getting cybersickness. The condition was identified in a piece in the New York Times in which British and US experts said that it needed addressing. Cyriel Diels, a cognitive psychologist and human factors researcher at Coventry University’s centre for Mobility and Transport, said: “It’s a fundamental problem that’s kind of been swept under the carpet in the tech instry.” “It’s a natural response to an unnatural environment.” Motion sickness leaves sufferers feeling ill because they feel movement in your muscles and your inner ear but do not see it. The mismatch in digital sickness is the opposite—you see movement on the screen but do not feel it. The effect is the same and the symptoms include a headache, wanting to throw up, confusion and the need to sit down. Often cybersickness manifests itself in a subtle way and sufferers put it down to stress or eyestrain.Steven Rauch, a professor of otolaryngology at Harvard Medical School, said: “Your sense of balance is different than other senses in that it has lots of inputs.” When those inputs don’t agree, that’s when you feel dizziness and nausea “Some studies that have been carried out into cybersickness found that women are more susceptible than men, the New York Times reported. Those who have Type A’ personalities—meaning they are confident and assertive—are more likely to suffer from cybersickness as well. Among those who have reported experiencing the condition have been video gamers who spend hours playing fast paced games. Cinema-goers have struggled with some scenes in action movies which have quick cuts and fast editing—and virtual reality has made the problem even worse. Jonathan Weinstein, a professor at the Kanbar Institute for Film and Television at New York University’s Tisch School of the Arts, said: “The idea is to get audiences to feel like participants in the action rather than outside observers of the action. Engineers at Oculus VR, the virtual headset manufacturer, have admitted that digital motion sickness is one of their biggest problems.
【词汇积累】
cybersickness 晕屏症
scrolling on phone 刷屏
smartphones 智能手机
tablets 平板
nausea 眩晕，恶心
sweep sth. Under the carpet 掩盖错误
susceptible 易受影响的
【译文】
移动电话的广泛使用被指引发了诸多社会弊端，不仅如此，手中的智能机也会让你觉得身体不适。科学家们把这种状态称为“晕屏”，是晕车的电子版。80%的手机和平板用户会晕屏，他们会有恶心、眩晕的感觉。造成晕屏的原因是浏览了含移动内容的屏幕，可能是看了有追车镜头的电影，也可能是浏览了手机上滚动的内容页。视觉内容越真实，晕屏的发生率就越高。《纽约时报》的一篇文章报道了这种症状。英美专家在文章中称，这个问题需要着手解决。认知心理学家、考文垂大学移动运输中心的人为因素研究员西里尔·蒂尔斯表示：“对弊端置之不理算得上是科技产业一个最根本的问题了。”“这是对非自然环境作出的自然反应。”晕动症会令患者感到肌肉和内耳在移动，但实际上并没有看到它们在移动。而晕屏症恰恰相反——你看到屏幕在移动，实际上却感受不到。二者的影响却是相同的，其症状为头疼、想吐、思绪混乱，需要静坐下来。晕屏症状通常不易察觉，患者会以为是因为压力大或者视觉疲劳引起的。哈佛医学院耳鼻喉科教授史蒂芬·劳奇表示：“与其他感官不同，当有大量信息输入时，人的平衡感会发生改变。”“当这些信息输入没有被感官接受，你就会觉得头晕、恶心。”《纽约时报》称，一些有关晕屏的研究发现，女性比男性更容易晕屏。A型人格，即果断自信的人，也更容易晕屏。“有晕屏症状的通常是连续几小时玩快节奏视频游戏的玩家。看动作片的观众在看到快速剪辑和切换的镜头时会不舒服，这是因为虚拟实境会加重晕屏。纽约大学提斯克艺术学院康贝尔影视研究所的教授乔纳森·温斯坦说：“动作片就是想让观众身临其境，而不是当一个局外人。”虚拟实境游戏头盔制造商“欧酷拉”公司的工程师们坦言，晕屏也是他们面临的最大问题之一。
⑨ 英语四级作文
如何写好四六级英语作文（1）
Chapter One 文章开头句型
1-1 对立法 : 先引出其他人的不同看法,然后提出自己的看法或者偏向于某一看法,
适用于有争议性的主题.
例如(e.g)
[1]. When asked about....., the vast/overwhelming majority of people
say that ....... But I think/view a bit differently.
[2]. When it comes to .... , some people believe that ....... Others
argue/claim that the opposite/reverse is true . There is probably some truth
in both arguments/statements , but (I tend to the profer/latter ...)
[3]. Now, it is commonly/generally/widely believed/held/acknowledged
that .... They claim/believe/argue that ... But I wonder/doubt whether.....
1-2 现象法 引出要剖析的现象或者问题, 然后评论 .
e.g
[1]. Recently the rise in problem of/(phenomenon of) ... has cause/
aroused public/popular/wide/worldwide concern.
[2]. Recently the issue of the problem of/the phenomenon of ...
has been brought into focus. ( has been braught to public attention)
[3].Inflation/Corruption/Social inequality ... is yet another of the
new and bitter truth we have to learn to face now/constantly.
1-3 观点法 ----开门见山,直接了当地提出自己对要讨论的问题的看法.
e.g:
[1]. Never history has the change of .. been as evident as ...
Nowhere in the world/China has the issue/idea of .. been more visible/
popular than...
[2]. Now people in growing/significant numbers are beginning/
coming to realize/accept/(be aware) that...
[3]. Now there is a growing awareness/recognition of the necessity
to......
Now people become increasingly aware/conscious of the importance of ......
[4]. Perhaps it is time to have a fresh look at the attitude/idea
that.......
1-4 引用法 ----- 先引出名人名言或者有代表性的看法, 来引出文章要展开论述的观点!
e.g:
[1]. "Knowledge is power." such is the remark made by Bacon. This remark
has been shared by more and more people .
"Ecation is not complete with graation." Such is the opinion of a
great American philosopher. Now more and more people share his opinion.
[2]."........." How often we hear such statements/words like theses
/this .
In our own days we are used to hearing such traditional complains as
this "......".
1-5 比较法 ------ 通过对过去,现在 两种不同的倾向,观点的比较 , 引出文章要讨论的观点.
e.g:
[1]. For years, ...had been viewed as ... But people are taking a fresh
look now. With the growing ... , people ....... .
[2]. People used to think that ... (In the past, ....) But people now
share this new .
1-6 故事法 ---- 先讲一个较短的故事来引发读者的兴趣, 引出文章的主题.
e.g:
[1]. Once in (a newspaper) , I read of/learnt .... The phenomenon of
... has aroused public concern.
[2]. I have a friend who ... Should he .... ? Such a dilemma we are
often confront with in our daily life.
[3]. Once upon a time , there lived a man who ... This story may be
(unbelievable) , but it still has a realistic significance now.
1-8 问题法 ----- 先用讨论或解答的设问, 引出自己观点, 适用于有争议性的话题.
e.g:
Should/What ...... ? Options of ... vary greatly , some ..., others ...
But in my opinion , ...... .
如何写好四六级英语作文（2）
Chapter 2 文章中间主体内容句型
<一> 原因结果分析
3-1-1. 基本原因 --- 分析某事物时, 用此句型说明其基本的或者多方面的原因.
e.g:
[1]. Why ... ? For one thing.. For another ...
[2]. The answer to this problem involves many factors. For one thing...
For another...... Still another ...
[3]. A number of factors , both physical and psychological affect ....
/both indivial and social contribute to ....
3-1-2 另一原因 --------> 在分析了基本原因之后, 再补充一个次要的或者更重要时用!
e.g:
[1]. Another important factor is ....
[2]. ... is also responsible for the change/problem.
[3]. Certainly , the ... is not the sole reason for .....
3-1-3 后果影响 --------- 分析某事物可能造成的后果或者带来的影响 .
e.g:
[1]. It will proce a profound/far-reaching effect/impact on....
[2]. In involves some serious consequence for ........
< 二 > 比较对照句型
3-2-1. 两者比较 ---> 比较两事物, 要说出其一超过另一个, 或肯定一事物的优点, 也肯定其缺点的时候用 !
e.g:
[1]. The advantages gained from A are much greater than the advantages
we gain from B.
[2]. Indeed, A carries much weight when compared with B.
[3]. There is no doubt that it has its negative effects as well as
positive effects.
3-2-2 . 两者相同/相似 ------> 比较两事物共同都有或者共同都没有的特点时用!
e.g:
[1]. A and B have several things in common.
They are similar in that.....
[2]. A bears some striking resemblances to B.
1.四六级专题之写作篇－－写作必背之35句型
一、~~~ the + ~ est + 名词 + (that) + 主词 + have ever + seen ( known/heard/had/read, etc)
~~~ the most + 形容词 + 名词 + (that) + 主词 + have ever + seen ( known/heard/had/read, etc)
例句：
Helen is the most beautiful girl that I have ever seen.
海伦是我所看过最美丽的女孩。
Mr. Chang is the kindest teacher that I have ever had.
张老师是我曾经遇到最仁慈的教师。
二、Nothing is + ~~~ er than to + V Nothing is + more + 形容词 + than to + V
例句：
Nothing is more important than to receive ecation.
没有比接受教育更重要的事。
三、~~~ cannot emphasize the importance of ~~~ too much.（再怎么强调...的重要性也不为过。）
例句：
We cannot emphasize the importance of protecting our eyes too much.
我们再怎么强调保护眼睛的重要性也不为过。
四、There is no denying that + S + V ...（不可否认的...）
例句：
There is no denying that the qualities of our living have gone from bad to worse.
不可否认的，我们的生活品质已经每况愈下。
五、It is universally acknowledged that + 句子~~ （全世界都知道...）
例句：
It is universally acknowledged that trees are indispensable to us.
全世界都知道树木对我们是不可或缺的。
六、There is no doubt that + 句子~~ （毫无疑问的...）
例句：
There is no doubt that our ecational system leaves something to be desired.
毫无疑问的我们的教育制度令人不满意。
七、An advantage of ~~~ is that + 句子 （...的优点是...）
例句：
An advantage of using the solar energy is that it won"t create (proce) any pollution.
使用太阳能的优点是它不会制造任何污染。
八、The reason why + 句子 ~~~ is that + 句子 （...的原因是...）
例句：
The reason why we have to grow trees is that they can provide us with fresh air./ The reason why we have to grow trees is that they can supply fresh air for us.
我们必须种树的原因是它们能供应我们新鲜的空气。
九、So + 形容词 + be + 主词 + that + 句子 （如此...以致于...）
例句：
So precious is time that we can"t afford to waste it. 时间是如此珍贵，我们经不起浪费它。
十、Adj + as + Subject（主词）+ be, S + V~~~ （虽然...）
例句：
Rich as our country is, the qualities of our living are by no means satisfactory. {by no means = in no way = on no account 一点也不}
虽然我们的国家富有，我们的生活品质绝对令人不满意。
十一、The + ~er + S + V, ~~~ the + ~er + S + V ~~~
The + more + Adj + S + V, ~~~ the + more + Adj + S + V ~~~（愈...愈...）
例句：
The harder you work, the more progress you make.
你愈努力，你愈进步。
The more books we read, the more learned we become.
我们书读愈多，我们愈有学问。
十二、By +Ving, ~~ can ~~ （借着...，..能够..）
例句：
By taking exercise, we can always stay healthy.
借着做运动，我们能够始终保持健康。
十三、~~~ enable + Object（受词）+ to + V （..使..能够..）
例句：
Listening to music enable us to feel relaxed.
听音乐使我们能够感觉轻松。
十四、On no account can we + V ~~~ （我们绝对不能...）
例句：
On no account can we ignore the value of knowledge.
我们绝对不能忽略知识的价值。
十五、It is time + S + 过去式 （该是...的时候了）
例句：
It is time the authorities concerned took proper steps to solve the traffic problems.
该是有关当局采取适当的措施来解决交通问题的时候了。
十六、Those who ~~~ （...的人...）
例句：
Those who violate traffic regulations should be punished.
违反交通规定的人应该受处罚。
十七、There is no one but ~~~ （没有人不...）
例句：
There is no one but longs to go to college.
没有人不渴望上大学。
十八、be + forced/compelled/obliged + to + V （不得不...）
例句：
Since the examination is around the corner, I am compelled to give up doing sports.
既然考试迫在眉睫，我不得不放弃做运动。
十九、It is conceivable that + 句子 （可想而知的）
It is obvious that + 句子 （明显的）
It is apparent that + 句子 （显然的）
例句：
It is conceivable that knowledge plays an important role in our life.
可想而知，知识在我们的一生中扮演一个重要的角色。
二十、That is the reason why ~~~ （那就是...的原因）
例句：
Summer is sultry. That is the reason why I don"t like it.
夏天很燠热。那就是我不喜欢它的原因。
二十一、For the past + 时间，S + 现在完成式...（过去...年来，...一直...）
例句：
For the past two years, I have been busy preparing for the examination.
过去两年来，我一直忙着准备考试。
二十二、Since + S + 过去式，S + 现在完成式。
例句：
Since he went to senior high school, he has worked very hard.
自从他上高中，他一直很用功。
二十三、It pays to + V ~~~ （...是值得的。）
例句：
It pays to help others.
帮助别人是值得的。
二十四、be based on （以...为基础）
例句：
The progress of thee society is based on harmony.
社会的进步是以和谐为基础的。
二十五、Spare no effort to + V （不遗余力的）
例句：
We should spare no effort to beautify our environment.
我们应该不遗余力的美化我们的环境。
二十六、bring home to + 人 + 事 （让...明白...事）
例句：
We should bring home to people the value of working hard.
我们应该让人们明白努力的价值。
二十七、be closely related to ~~ （与...息息相关）
例句：
Taking exercise is closely related to health.
做运动与健康息息相关。
二十八、Get into the habit of + Ving
= make it a rule to + V （养成...的习惯）
例句：
We should get into the habit of keeping good hours.
我们应该养成早睡早起的习惯。
二十九、Due to/Owing to/Thanks to + N/Ving, ~~~ （因为...）
例句：
Thanks to his encouragement, I finally realized my dream.
因为他的鼓励，我终于实现我的梦想。
三十、What a + Adj + N + S + V!
= How + Adj + a + N + V!（多么...！）
例句：
What an important thing it is to keep our promise!
How important a thing it is to keep our promise!
遵守诺言是多么重要的事！
三十一、Leave much to be desired （令人不满意）
例句：
The condition of our traffic leaves much to be desired.
我们的交通状况令人不满意。
三十二、Have a great influence on ~~~ （对...有很大的影响）
例句：
Smoking has a great influence on our health.
抽烟对我们的健康有很大的影响。
三十三、do good to （对...有益），do harm to （对...有害）
例句：
Reading does good to our mind.读书对心灵有益。
Overwork does harm to health.工作过度对健康有害。
三十四、Pose a great threat to ~~ （对...造成一大威胁）
例句：
Pollution poses a great threat to our existence.
污染对我们的生存造成一大威胁。
三十五、do one"s utmost to + V = do one"s best （尽全力去...）
例句：
We should do our utmost to achieve our goal in life.
我们应尽全力去达成我们的人生目标。
⑩ 求创新英语四级作文范例
Dear Friends, Fellow classmates,
The exciting moment, I am convinced, must remain vivid in our mind, when Beijing, the Capital of China, was proclaimed the final winner to host the Olympic Games in 2008 by Chairman of the International Olympic Committee. Time flies, and the new Olympics is coming very soon!
Olympic Games, held every four years, boast a long history and offer rare opportunities for different nations to get together, which are far more than sports contests participated by professional athletes. Through Olympics, new world records are set, resilient sportsmanship is highlighted, sport-related instries spring up and international goodwill and exchange get greatly enhanced.
As college students, we ought to contribute our share to the imminent Olympic Games with responsibility of citizenship as well as focused knowledge. For instance, it is advisable to give voluntary lectures to popularize Olympic knowledge and environmental awareness in some residential areas. And we are looking forward to your suggestions and participation