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首页 > 期刊问答网 > 期刊问答 > 英语议论文作文模板四级

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iLva

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一、引出开头1:It is well-known to us that……(我们都知道……)==As far as my knowledge is concerned, …( 就我所知…)2:Recently the problem of…… has been brought into ==Nowadays there is a growing concern over ……(最近……问题引起了关注)3:Nowadays(overpopulation)has become a problem we have to (现今,人口过剩已成为我们不得不面对的问题)4:Internet has been playing an increasingly important role in our day-to-day It has brought a lot of benefits but has created some serious problems as (互联网已在我们的生活扮演着越来越重要的角色,它给我们带来了许多好处但也产生了一些严重的问题)5:With the rapid development of science and technology,more and more people believe that……(随着科技的迅速发展,越来越多的人认为……)6:It is a common belief that……==It is commonly believed that……(人们一般认为……)7:A lot of people seem to think that……(很多人似乎认为……)8:It is universally acknowledged that + 句子(全世界都知道)二、表达不同观点1:People's views on……vary from person to Some hold that……However, others believe that……(人们对……的观点因人而异,有些人认为……然而其他人却认为……)2:People may have different opinions on……(人们对……可能会持有不同见解)3:Attitudes towards (drugs)vary from person to ==Different people hold different attitudes towards(failure)(人们对待吸毒的态度因人而异)4:There are different opinions among people as to……(对于……人们的观点大不相同)三、表示结尾1:In short, it can be said that……(总之,他的意思是……)2:From what has been mentioned above, we can come to the conclusion that……(从上面提到的,我们可以得出结论……)3:Taking all these factors into consideration, we naturally/reasonably come to the conclusion that……(把所有的这些因素加以考虑,我们自然可以得出结论……)4:Hence/Therefore, we'd better come to the conclusion that……(因此,我们最好的出这样的结论……)5:There is no doubt that (job-hopping)has its drawbacks as well as (毫无疑问,跳槽有优点也有缺点)6:All in all, we cannot live without……,but at the same time we must try to find out new ways to cope with the problems that would (总之,我们没有……无法生活,但同时我们必须寻求新的解决办法来面对可能出现的新问题)四、提出建议1:It is high time that we put an end to the (trend)(该是我们停止这一趋势的时候了)2:There is no doubt that enough concern must be paid to the problem of……(毫无疑问,对……问题应予以足够重视)3:Obviously ,if we want to do something … it is essential that……(显然,如果我们想要做么事,很重要的是……)4:Only in this way can we ……(只有这样,我们才能……)5:Spare no effort to + V (不遗余力的)五、预示后果1:Obviously,if we don't control the problem, the chances are that……will lead us in (很明显,如果我们不能控制这一问题,很有可能我们会陷入危险)2:No doubt, unless we take effective measures, it is very likely that ……(毫无疑问,除非我们采取有效措施,否则我们很可能会……)3:It is urgent that immediate measures should be taken to stop the situation(很紧迫的是应立即采取措施阻止这一事态的发展)

英语议论文作文模板四级

228 评论(11)

ckskqnoi

排放冷却是对流冷却的另一种。与再生冷却不同,用于排放冷却的冷却剂对推力室冷却吸热后不进入燃烧室参与燃烧,而是排放出去。直接排放冷却剂会降低推力室比冲,因此需要尽可能减少用于排放冷却的冷却剂流量,同时只在受热相对不严重的喷管出口段采用排放冷却。还有一种是辐射冷却,其热流由燃烧产物传给推力室,再由推力室室壁想周围空间辐射散热。辐射冷却的特点是简单、结构质量小。主要应用于大喷管的延伸段和采用耐高温材料的小推力发动机推力室。在组织推力室内冷却时,是通过在推力室内壁表面建立温度相对较低的液体或气体保护层,以减少传给推力室室壁的热流,降低壁面温度,实现冷却。内冷却主要分为头部组织的内冷却(屏蔽冷却)、膜冷却和发汗冷却三种方法。推力室采用内冷却措施后,由于需要降低保护层的温度,所以燃烧室壁面附近的混合比不同于中心区域的最佳混合比(多数情况下采用富燃料的近壁层),造成混合比沿燃烧室横截面分布不均匀,使燃烧效率有一定程度的降低。膜冷却与屏蔽冷却类似,是通过在内壁面附近建立均匀、稳定的冷却液膜或气膜保护层,对推力室内壁进行冷却,只是用于建立保护层的冷却剂不是喷注器喷入的,而是通过专门的冷却带供入。冷却带一般布置在燃烧室或喷管收敛段的一个横截面上。沿燃烧室长度方向上可以有若干条冷却带。为提高膜的稳定性,冷却剂常常经各冷却带上的缝隙或小孔流入采用发汗冷却时,推力室内壁或部分内壁由多孔材料制成,其孔径为数十微米。多孔材料通常用金属粉末烧结而成,或用金属网压制而成。此情况下,尽可能使材料中的微孔分布均匀,是单位面积上的孔数增多。液体冷却剂渗入内壁,建立起保护膜,使传给壁的热流密度下降。当用于发汗冷却的液体冷却剂流量高于某一临界值,在推力室内壁附近形成的是液膜。当冷却剂流量低于临界值流量时,内壁温度会高于当前压力下的冷却剂沸点,部分或全部冷却剂蒸发,形成气膜。除了以上热防护外,还有其他热防护方法如:烧蚀冷却、隔热冷却、热熔式冷却以及室壁的复合防护等。3 高焓气体发生器热防护方案综合上述方法结合实际情况,便得到高焓气体发生器的热防护方法。高焓气体发生器的燃烧室与液体火箭发动机的不同,省去前面的推力室部分,使得其结构更简单而有效。那么,所涉及到的热防护即为对燃烧室室壁的热防护部分。由于燃料进入燃烧室内迅速分解并放出大量
176 评论(11)

vivienz26

四六级作文模版 写作模板——提纲式作文 1. 对立观点式 A.有人认为X 是好事,赞成X, 为什么? B. 有人认为X 是坏事, 反对X,为什么? C.我的看法。 Some people are in favor of the idea of doing X They point out the fact that 支持X 的第一个原因。They also argue that 支持X 的另一个原因。 However, other people stand on a different They consider it harmful to do X They firmly point out that 反对X 的第一个理由。 An example can give the details of this argument: 一个例子。 There is some truth in both But I think the advantages of X overweigh the In addition to the above-mentioned negative effects it might bring about, X also may X 的有一个坏处。 2. 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 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 (以下参照辩论文的议论文写法)。 3. 社会问题(现象)式 A.一个社会问题或者现象。 B. 产生的原因 C.对社会和我们生活的影响 D. 如何杜绝。(如果是问题的话) E. 前景的预测。 Nowadays, there exists an increasingly serious social/economic/environmental (X has increasingly become a common concern of the public) According to a survey, 调查内容说明这种现象的情况。(或者是一个例子)。 There are a couple of reasons booming this problem/ 下面参照辩论式议论文的写法。 X has caused substantial impact on the society and our daily life, which has been articulated in the following 参照辩论式议论文的写法。 A dozen of measures are supposed to take to prevent X from bringing us more 参照辩论式议论文的写法。 Based on the above discussions, I can easily forecast that more and more people will …… 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 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/ 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 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) 英语四六级写作试题模板——辩论式议论文 模版1 Some people believe (argue, recognize, think) that 观点 But other people take an opposite They firmly believe that 观点 As for me, I agree to the former/latter There are a dozen of reasons behind my First of all, 论据 More importantly, 论据 Most important of all, 论据 In summary, 总结观点 As a college student, I am supposed to 表决心 或 From above, we can predict that 预测 模版2 People hold different views about X Some people are of the opinion that 观点1, while others point out that 观点 As far as I am concerned, the former/latter opinion holds more For one thing, 论据 For another, 论据 Last but not the least, 论据 To conclude, 总结观点 As a college student, I am supposed to 表决心 或 From above, we can predict that 预测 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 The reasons are First of all, 论据1。 Furthermore, 论据2。 Among all of the supporting evidences, one is the 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
341 评论(14)

我是一个啊

模板? 有啥用啊。不如把听力听好
272 评论(9)

南瓜子z

提纲式应用文Example OneA Letter to a Scholarship-winning F 比你高一个年级的好朋友得了奖学金,你很替他骄傲和高兴; 夸奖他一向勤奋、好学、有专业天赋,是你的榜样; 希望他能够介绍一些好的专业书给你,并介绍一些学习经验。Dear Ann, 先提问导入;再表达写信目的Can you imagine what a delight I take in your winning a first-rank scholarship? I am sincerely writing this letter to express/voice my heartfelt As we all know, You are a _____ person, and I ……现在分词做插入语进行修饰You, enthusiastic and enterprising, are one of the most talented and diligent勤奋的 in our department, already wining 2 awards for scientific On the one hand, you are vocal and high spirited in the classroom, always coming up with luminous明确的,清晰明了的 questions which show an extraordinary非凡的,卓越的=outstanding grasp of the On the other hand, you are splendid/fantastic in social activities, as作为 the president of the English Club and a member of the Student U No wonder that your advice is frequently sought and your phone rings constantly/ Now your hard work finally pays 还清债务;得到回报No doubt that it is your straight A academic record, along with/as well as your outstanding contribution to social activities/movements, that made you a scholarship-As your bosom/intimate亲密的 pal/companion/mate, I am so proud of you and so lucky that I can always learn from I will be/feel greatly honored荣幸 if you can lend some reference books to And your advice on study will be highly appreciated欣赏;赞扬句式亮点性词汇(必须使用六级词汇,不少于5个)词汇切忌重复Example Two(课后练习)An E-mail of Invitation to a Get-together你正在筹备假期全班同学聚会,与高中时的一个同学已经两年不见,最近得知了他的e-mail地址,请给他写封邮件。 问候对方,了解对方这两年的情况;get acquainted 约对方在假期里参加全班同学聚会; get-together / gala party 夸奖对方多才多艺,请他准备节目。 versatileDear Ann, 先寒暄一下,再提问导入,然后表达写信目的。How time flies! I haven’t heard from you ever since we graduated two years How have you been? Can you imagine what a delight I am informed of your E-mail address? I am sincerely writing this letter to express/voice my heartfelt joy and get acquainted with your current By the way, since we haven’t seen each other for so many years, therefore, a get-together party, organized by our enthusiastic monitor, Jonathan, will have been planned in our It is to be held possibly sometime in the coming summer vacation, preferably in some place near our high And at that time, you, full of passion激情 and enterprise事业心,魄力, were one of the most talented and versatile多才多艺的 member in our department, often winning awards in various activities and So, if you can prepare a program and make a fantastic/outstanding/extraordinary performance in this gala, we will be more than more than + 非常。。。No wonder/doubt that you will be the most dazzling 耀眼的stars among the whole As your bosom/intimate亲密的 pal/companion/mate, I am so proud of you and so lucky that I can always learn from If you can manage to come, please tell us when you’re If you can’t make it, please also let us What is more important, please keep me updated更新 of any change of your address, E-mail and phone number All the best!
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