以下是小编收集整理的英语作文议论文,本文共14篇,仅供参考,欢迎大家阅读。
篇1:英语作文议论文
Increased food security for growing populations
If the low success rates can be improved (Dolly was only one success out of 276 tries),reproductive cloning can be used to develop efficient ways to reliably reproduce animals with special qualities.For example,drug-producing animals or animals that have been genetically altered to serve as models for studying human disease could be mass-produced.
Reproductive cloning also could be used to repopulate endangered animals or animals that are difficult to breed.In ,the first clone of an endangered wild animal was born,a wild ox called a gaur.The young gaur died from an infection about 48 hours after its birth.In 2001,scientists in Italy reported the successful cloning of a healthy baby mouflon,an endangered wild sheep.The cloned mouflon is living at a wildlife center in Sardinia.Other endangered species that are potential candidates for cloning include the African bongo antelope,the Sumatran tiger,and the giant panda.Cloning extinct animals presents a much greater challenge to scientists because the egg and the surrogate needed to create the cloned embryo would be of a species different from the clone.
Therapeutic cloning technology may some day be used in humans to produce whole organs from single cells or to produce healthy cells that can replace damaged cells in degenerative diseases such as Alzheimer's or Parkinson's.Much work still needs to be done before therapeutic cloning can become a realistic option for the treatment of disorders.
篇2:英语作文议论文
Advanced technology has already pushed human being to edges,such as the production of weapons of mass destruction,the destruction of Ozone by Freon ,and the application of clone.The heated deabte over whether cloning technique should be used in human reproduc--
tion must be considered as a serious issue.
Clone, to a certain degree, is beneficial to mankind.Such disease as Parkinsons will possiblly be cured in the future in the hope of further applying of clone.However,the abuse of this technology will bring human being unthinkable destruction.
Since the declaration of the death of Dolly,we are more conscious of the inefficient procedure of clone.Acorrding to “Dolly's false legacy”,the incidence of death among fetuses and offspring produced by cloning is much higher than it is through natural reproduction--roughly 10 times as high as normal before birth and 3 times as high after birth.And even you may argue that this technology will be perfected in the future, i don't see there is any point in whole--being cloning.
Many people consider this technology a promising one as to bring all human being to a new era in which all human reproduction will be accomplished by cloning.Thus scientists in some countries have already started their great plan to clone human.But let's think, what is the practical value in doing so?You may tell me that it can bring hope for those couples unable to have children because they might choose to have a copy of one of them rather than accept the gene intrusion from a doner.But imagine,if you have a child owning the same apperance as yours or your husband's, will you accept it without any uncomfort?
Don't you think it is embarrassing?Or if this kind of human reproduction is allowed,terrorists may get hold of it and reproduce lots of “American Presidents”.Don't you agree that these presidents might bring the world much more chaoes?Besides these terrible aspects,the cloning of whole--being may destroy the diversity of people of the globe.
Of course, there still remains much more disadvantages of the application of cloning reproduction of human being and animals. We should be extremely cautious of what we do and thus remember we will sure be respondible for all the results created by ourselves!!!
So how do u think about it?
篇3:英语议论文作文:我
英语议论文作文:关于我
Hello, my name is Jian Xuanyi.I’m a boy.I’m 12 years old.I’m in Class 5,Grade 5.I’m tall and thin.
In the school,I’m a good student. At my home,I’m s good son.
I like playing badminton, playing the violin and so on. Sometimes, I play badminton with my good friends, sometimes; I watch badminton games on TV.I like blue and green, because they’re very beautiful. I like eating watermelons and mangoes very much.
This is me. Do you like me?
篇4:英语议论文作文:“Spring”
英语议论文作文:“Spring”
SpringThere are four seasons in a year. They are spring, summer, autumn and winter. And every season has three months. I think every season is beautiful and I think spring is the
best season of the year! So I like spring very much. What about you?
When the weather become warm and sunny, everything comes to life again, they seem to tell us— spring has come . In much of China. Spring is usually very short. But the days get longer. It’s usually from March to May. Sometime it’s colder but it gets warmer. At spring times, In the fields everything begins to grow. Trees turn green, and flowers start to come out.
Spring can make people happy! If you do some sports at that time, you will join them. Like flying the kite, going fishing, going hiking and so on. It’s can make people happy and also can keep people healthy. I think it’s very interesting!Summer, full of vigor, is beautiful, but I think spring is more beautiful because it is a naivetest season.
篇5:高一英语议论文作文
Encouraging Buying Cars Isn’t Fit For Today
Nowadays, we can often hear the discussion whether buying cars should be encouraged. Some people suggest that we should buy cars. But others claim that driving cars is not a wise idea. As far as I am concerned, I am in favor of the latter opinion.
To begin with, there are few parking lots, so the streets are made narrower by the cars parked along the roads. For example, my father could not find any place to park when we went to the supermarket.
Moreover, many drivers do not obey regulations, because people do not pay enough attention to the rule of traffic. For instance, I often see people cross the road when the traffic lights are still red.
Last but not least, the growth of new roads’construction is usually slower than the increasing number of cars. For example, the length of the road has gone up by 20% in . However, the number of cars increased by 50% in the meantime.
From what have been discussed above, we could draw a conclusion that encouraging buying cars is not fit for today.
篇6:高一英语议论文作文
Dear Editor,
I’m writing to tell you about our discussion we had on the afternoon of last Wednesday about the good and bad sides of setting off firecrackers during the Spring Festival. 20 boy and 20 girl students attended the discussion. As a result, 40% of them believe that setting off firecrackers certainly adds pleasure and joy to the festival, therefore, it is a wonderful tradition. But another 40% of the students think that setting off firecrackers causes air and noise pollution, and what’s worse, it sometimes causes terrible accidents to us and to our property. The other 20% have never thought about it or don’t care a bit.
Yours truly,
Li Hua
篇7:高二英语作文议论文
In my family, there are only three people, my parents and I. because of my parents’ work, they could only have one child at that time, so I don’t have any siblings. I felt so lonely when my parents went out for their work. Now the government changed their policy, people can have the second child. But some people refuse because they think they can’t afford it. Despite the expense, there are many advantages to have the second child. For one thing, the only child can have someone company, so they won’t feel lonely on the process of growing up. For another thing, two kids will help each other, they can share things together. Learning to share things is a very important lesson for children. In Chinese tradition, more kids, more better, but I think two are perfect for the family. 在我的家庭,只有三个人,我的父母和我。因为父母的工作,他们只能有一个孩子,所以我没有任何的兄弟姐妹。我感到孤独,当我父母出去工作了。现在政府改变了政策,人们可以有第二个孩子。但有些人拒绝,因为他们认为他们负担重。不考虑花费, 生二孩有很多好处。首先,独生子女有伴, 因此在成长的过程中不会感到孤独。另一方面,两个孩子会互相帮助,他们可以一起分享东西。学习分享事物对孩子来说是一个非常重要的课程。在中国的传统中,越多孩子越好的,但我认为两个孩子对一个家庭来说是最好的。
看了“高二英语作文议论文”的人还喜欢:
篇8:小学生英语作文议论文
A lot of parents like to make choice for their kids, because they believe their children are young and have no idea how to make the best choice. While my parents won’t do it for me, they will leave me the options and then let me make my own decision. I feel being respected and so thankful to them. I have my idea and can take the responsibility.
很多父母喜欢为孩子做出选择,因为他们认为他们的孩子还小,不知道如何做最好的选择。然而我的父母不会为我做抉择, 他们会给我留下一些选择,然后让我自己做决定。我感到受到尊重,很感谢他们。我有我的想法,可以负起责任。
篇9:高考英语作文议论文写作技巧
高考英语作文议论文写作技巧
议论文是作者对某个问题或某件事进行分析、评论,表明自己的观点、立场、态度、看法和主张的一种文体。议论文有三要素,即论点、论据和论证。论点的基本要求是:观点正确,认真概括,有实际意义;论据的基本要求是:真实可靠,充分典型;论证的基本要求是:推理必须符合逻辑。
一、英语议论文的结构一般较为固定,通常包括以下三部分:
1. 在导语部分提出需要议论的议题;
2. 在正文部分对所提出的问题进行议论;
3. 在结论部分对以上的讨论进行总结和归纳。
写议论文要考虑论点,考虑用什么作论据来证明,怎样来论证,然后得出结论。它可以是先提出一个总论点,然后分别进行论述,分析各个分论点,最后得出结论;或者先引述一个故事,一段对话,或描写一个场面,再一层一层地从事实中分析出道理,归纳引申出一个新的结论;也可以在文章开头先提出一个人们关心的问题,然后一一作答,逐层深入;还可以把两个不同事物以对立的方式提出来加以比较、对照,然后得出结论。
二、在具体写作中要注意下列几点:
1. 议题的提出要开门见山,不要拖泥带水。
2. 议论时可以采用不同的方法。如:可以摆出正反两方面观点,进行对比;也可引经据典论证作者自己观点的正确性,从而使读者接受自己的观点;亦可提出一种错误的观点然后论证其错误,最终提出正确的观点。正文部分是写作的重点,论证方法可用归纳法、推理法、比较法等。
3. 在结论部分必须表明作者的观点,对讨论的问题做出总结。
4. 注意连接词和过渡词等词语的使用,以增强文章的条理性和逻辑性。常用的过渡词和连接词包括:first, second, third, finally, in addition, furthermore, besides, what was worse, more importantly, in contrast, because, since, now that, therefore,consequently,in that case, as a result/consequence, in conclusion, to sum up等等。
三、写作技巧
议论文的写作是一个创造性的完整过程。它大体上可以分为摄取、构思、表达和修改四个阶段。构思是把客体材料转变为作者主观认识的转化阶段,表达是通过遣词造句将作者的思想“物化为文章”的.实施阶段,修改是最后完善提高文章的过程。在对这四个阶段的具体运作过程中,一定要进行恰当地分析,提高自觉性。在具体的写作过程中,要注意以下几点:
1. 把握三个要素,即论点、论据和论证。论点要新,要有鲜明的时代特征,能体现时代脉搏。认识问题和分析问题时,应当褒扬新思想,针砭时弊,体现时代的精神风貌。同时要把握事物的本质特征,揭示事物的发展规律,给人以厚重感。论据要为论点服务,注重摆事实,讲道理。在写作时要充分利用事实论据和道理论据,灵活采用多种论证方法,如例证法、引证法、对比论证法、比喻论证法等让文章更具说服力与雄辩性,让读者心服口服。
2. 把握三性,即准确性、鲜明性和主动性。在写作时要善于提出问题,主动地运用准确的论据和恰当的论证方法来分析问题,水到渠成地引出自己鲜明的观点。
3. 语言运用时务必准确、言简意赅,行文时要注重条理性和层次性。
四、佳作欣赏
Keep Water Clean
It is known to all of us that there is not enough water on the earth. In some parts of the world, such as in Africa, people even have not enough water to drink. They are living a hard life because of lack of water. At the same time, water is being polluted in some other countries. Many rivers, lakes and seas have been polluted by waste poured by factories. Fishes in the polluted waters are not safe to eat any longer. and some people died of diseases caused by the dirty water.
It is very important to protect water. Waste water should be cleaned before pouring into rivers and lakes. Laws should be made to prevent factories from polluting water.
We hope that everyone will protect water and keep water clean because we only have one earth.
【评析】本文紧扣题目,先写水资源的短缺,再写有限水源的污染及其导致的结果,层层深入,结尾处自然地得出结论:我们要珍惜水资源。
篇10:英语四级作文:议论文常用句型
英语四级作文:议论文常用句型
1。 It is considered /thought that人们(有人,大家)认为
2。 It is generally /usually accepted /agreed/recognized that普遍(一般,通常)认为
3。 It is believed that有人(人们,大家)相信
4。 It is well—known that大家知道(众所周知)
5。 It is said that据说(有人说)
6。 It is learned that据闻(悉)
7。 It is supposed that据推测
8。 It is estimated/predicted/calculated that据估计(预计)
9。 It must be pointed that必须指出
10。 It is reported that据报道
11。 It must be admitted that必须承认
12。 It will be seen that可见(可以看出)
13。 It will be seen from this that由此可见
14。 It is understood that不用说(都知道)
15。 It can not be denied that无可否认
16。 It has been proved/demonstrated that已经证明
17。 It may be confirmed that可以肯定
18。 It may be safely said that可以有把握地说
19。 It is sometimes asked that人们有时会问
20。 It is expected that/hoped that人们希望
21。 When it comes to要说到,要谈及
篇11:中考英语作文:议论文写作
中考英语议论文没有考过,但此次“崇文区”一模英语作文是一篇议论文,下面就让我们看看议论文如何来写呢?
Nowadays, there are more and more [某种现象] in [某种场合].It is estimated that [相关数据] .Why have there been so many [某种现象]?Maybe the reasons can be listed as follows. The first one is [原因一]. Besides, [原因二].The third one is [原因三].To sum up, the main cause of [某种现象] is due to [最主要原因]. It is high time that something were done upon it. For one thing, [解决办法一]. On the other hand, [解决办法二]. All these measures will certainly reduce the number of [某种现象].
篇12:英语议论文作文:关于我
Hello, my name is Jian Xuanyi.I’m a boy.I’m 12 years old.I’m in Class 5,Grade 5.I’m tall and thin.
In the school,I’m a good student. At my home,I’m s good son.
I like playing badminton, playing the violin and so on. Sometimes, I play badminton with my good friends, sometimes; I watch badminton games on TV.I like blue and green, because they’re very beautiful. I like eating watermelons and mangoes very much.
This is me. Do you like me?
篇13:英语作文:议论文的框架
(1) 不同观点列举型( 选择型 )
There is a widespread concern over the issue that __作文题目_____. But it is well known that the opinion concerning this hot topic
varies from person to person. A majority of people think that _ 观点一________. In their views there are 2 factors contributing to this attitude
as follows: in the first place, ___原因一_______.Furthermore, in the second place, ___原因二_____. So it goes without saying that ___观点一_____.
People, however, differ in their opinions on this matter.
Some people hold the idea that ___观点二_______. In their point of view, on the one hand, ___原因一_______. On the other hand, ____原因二_____. Therefore, there is no
doubt that ___观点二______.
As far as I am concerned, I firmly support the view that __观点一
或二______. It is not only because ________, but also because _________. The more
_______, the more ________.
(2)利弊型的议论文
Nowadays, there is a widespread concern over (the issue that)___作文题目______. In fact, there are both advantages and disadvantages in __题目议题_____. G英语作文模板:说明利弊题型
这种题型往往要求先说明一下现状,再对比事物本身的利弊,有时也会单从一个
角度(利或弊)出发,最后往往要求考生表明自己的态度(或对事物前景提出预测)
1. 说明事物现状
2. 事物本身的优缺点(或一方面)
3. 你对现状(或前景)的看法
Nowadays many people prefer A because it has a significant role in our daily life.
Generally, its advantages can be seen as follows. First ----------------(A的优点之一). Besides -------------------(A的优点之二).
But every coin has two sides. The negative aspects are also apparent. One of
the important disadvantages is that ----------------(A的第一个缺点).To make matters worse,------------------(A的第二个缺点).
Through the above analysis, I believe that the positive aspects overweigh the
negative ones. Therefore, I would like to ---------------(我的看法).
(From the comparison between these positive and negative effects of A, we
should take it reasonably and do it according to the circumstances we are in.
Only by this way, ---------------(对前景的预测).
篇14:英语作文:议论文的框架
英语作文模板:议论文的框架
(1)不同观点列举型(选择型)There is a widespread concern over the issue that __作文题目_____. But it is well known that the opinion concerning this hot topic
varies from person to person. A majority of people think that _观点一________. In their views there are 2 factors contributing to this attitude
as follows: in the first place, ___原因一_______.Furthermore, in the second place, ___原因二_____. So it goes without saying that ___观点一_____.
People, however, differ in their opinions on this matter.
Some people hold the idea that ___观点二_______. In their point of view, on the one hand,___原因一_______. On the other hand, ____原因二_____. Therefore, there is no
doubt that ___观点二______.
As far as I am concerned, I firmly support the view that __观点一
或二______. It is not only because ________, but also because _________. The more
_______, the more ________.
(2)利弊型的议论文
Nowadays, there is a widespread concern over (the issue that)___作文题目______. In fact, there are both advantages and disadvantages in __题目议题_____. Generally speaking, it is widely believed there are several positive
aspects as follows. Firstly, ___优点一______. And secondly ___优点二_____.
Just As a popular saying goes, “every coin has two sides”, __讨论议题______ is no exception, and in another word, it still has negative aspects. To
begin with, ___缺点一______. In addition, ____缺点二______.
To sum up, we should try to bring the advantages of __讨论议题____ into full play, and reduce the disadvantages to the minimum at the same
time. In that case, we will definitely make a better use of the ____讨论议题___.
( 3 )答题性议论文
Currently, there is a widespread concern over (the issue that)__作文题目_______ .It is really an important concern to every one of us. As a result, we
must spare no efforts to take some measures to solve this problem.
As we know that there are many steps which can be taken to undo this
problem. First of all, __途径一______. In addition, another way contributing to success of the solving
problem is ___途径二_____.
Above all, to solve the problem of ___作文题目______, we should find a number of various ways. But as far as I am
concerned, I would prefer to solve the problem in this way, that is to say,
____方法_____.
( 4 )谚语警句性议论文
It is well know to us that the proverb: “ ___谚语_______” has a profound significance and value not only in our job but also
in our study. It means ____谚语的含义_______. The saying can be illustrated through a series of examples as
follows. ( also theoretically )
A case in point is ___例子一______. Therefore, it is goes without saying that it is of great of importance
to practice the proverb ____谚语_____.
With the rapid development of science and technology in China, an
increasing number of people come to realize that it is also of practical use
to stick to the saying: ____谚语_____. The more we are aware of the significance of this famous saying,
the more benefits we will get in our daily study and job.
★议论文
文档为doc格式