生命不是一篇“文摘”，不接受平淡，只收藏精彩。对于考试而言，每天进步一点点，基础扎实一点点，以下是可爱的小编sky给大家分享的大二考研英语作文（优秀5篇），欢迎借鉴，希望对大家有一些参考价值。

大二考研英语作文 篇一

Bacteria are etremely small living things. while we measure our own sizes in inches or centimeters, bacterial size is measured in microns. one micron is a thousandth of a millimeter: a pinhead is about a millimeter across. rod-shaped bacteria are usually from two to four microns long, while rounded ones are generally one micron in diameter. thus if you enlarged a rounded bacterium a thousand times, it would be just about the size of a pinhead. an adult human magnified by the same amount would be over a mile(1.6 kilometer) tall.

Even with an ordinary microscope, you must look closely to see bacteria. using a magnification of 100 times, one finds that bacteria are barely visible as tiny rods or dots. one cannot make out anything of their structure. using special stains, one can see that some bacteria have attached to them wavy-looking "hairs" called flagella. others have only one flagellum. the flagella rotate, pushing the bacteria through the water. many bacteria lack flagella and cannot move about by their own power, while others can glide along over surfaces by some little-understood mechanism.

From the bacteria point of view, the world is a very different place from what it is to humans. to a bacterium water is as thick as molasses is to us. bacteria are so small that they are influenced by the movements of the chemical molecules around them. bacteria under the microscope, even those with no flagella, often bounce about in the water. this is because they collide with the watery molecules and are pushed this way and that. molecules move so rapidly that within a tenth of a second the molecules around a bacteria have all been replaced by new ones; even bacteria without flagella are thus constantly eposed to a changing environment.

细菌是极其微小的生物。当我们用英寸或厘米来测量自己的大小时，细菌的大小是用微米来测量的。一微米是千分之一毫米：针头的直径约为一毫米。杆状细菌的长度通常为2-4微米，而圆形细菌的直径通常为1微米。因此，如果你把一个圆形细菌放大一千倍，它就只有针头那么大。一个成年人如果放大同样的大小，身高将超过一英里（1.6公里）。

即使用普通显微镜，你也必须仔细观察才能看到细菌。使用100倍的'放大倍数，人们发现细菌几乎看不见微小的杆状或点状。人们无法辨认出它们的结构。使用特殊的污渍，可以看到一些细菌附着在它们身上，看起来像波浪状的“毛发”，称为鞭毛。其他的`只有一个鞭毛。鞭毛旋转，推动细菌穿过水面。许多细菌缺乏鞭毛，不能靠自己的力量四处移动，而另一些细菌可以通过一些鲜为人知的机制在表面滑翔。

从细菌的角度来看，世界与人类截然不同。水对细菌来说就像糖蜜对我们来说一样粘稠。细菌太小了，它们会受到周围化学分子运动的影响。显微镜下的细菌，即使是那些没有鞭毛的细菌，也经常在水中弹跳。这是因为它们与水分子碰撞，并被推来推去。分子移动如此之快，以至于在十分之一秒内，细菌周围的分子都被新的分子取代了；因此，即使没有鞭毛的细菌也会不断地适应不断变化的环境。

大二考研英语作文 篇二

The Media and Famous People

In almost every form of media, including television, newspapers and magazines, a great deal of attention is paid to the personal lives of celebrities. It seems that the public cannot get enough of this kind of news. However, I believe that the media have a responsibility to present a balanced view of the world, as well as respect the lives of public figures. Therefore, I believe that the media pay too much attention to the personal lives of famous people. For people who are fascinated with the lives of public figures there are some forms of media devoted exclusively to this topic. They can satisfy their curiosity by buying fan magazines and watching TV shows devoted to entertainment news. The general media should present all types of information because people have different interests. Furthermore, the practice of dwelling on the private lives of celebrities can lead people to pay more attention to these matters than they otherwise would. Perhaps most importantly, the media should respect the privacy of every inpidual, including public figures. They may have chosen to be in the public eye, but that does not give the public the right to know everything about them. Moreover, many stories about celebrities are untrue; they are only gossip reported to increase sales of magazines and other media. They are unfair to the famous and mislead the public. For all of these reasons, I believe that the media should pay more attention to matters other than the private lives of public figures. In this way, they can appeal to a wider audience and encourage people to develop other interests. In my opinion, the media currently pay too much attention to the private lives of public figures.

参考译文：

媒体与名人

几乎每一种媒体，包括电视、报纸和杂志，都把许多焦点放在名人的私生活上。一般大众似乎对这种新闻一直很感兴趣。然而，我认为媒体有责任以公正无偏袒的观点报导时事，以及尊重公众人物的生活。因此，我认为媒体的确过度关注名人的私生活。

因为有些人对于公众人物的私生活十分着迷，所以有些媒体就专做这个主题。通过购买针对歌迷或影迷所发行的杂志和观看电视节目的娱乐新闻，就能满足这些歌迷和影迷的好奇心。一般媒体应该提供所有类型的资讯，因为人们的兴趣各不相同。此外，老是强调名人的私生活，会使人们比平常更注意这些事情。或许最重要的是，媒体应该尊重个人的'隐私，包括公众人物的隐私。他们可能选择公开露面或上传播媒体，但那并不表示大众有权知道他们的一切。此外，许多关于名人的报导并不真实；那些报导只不过是被用来增加杂志销售量以及其他媒体业绩的八卦传闻。那些不实的报导不仅对名人不公平，也会误导大众。

基于这些理由，我认为媒体应该多注意公众人物私生活以外的事情。如此一来，媒体就能吸引更广大的受众群，并且鼓励人们培养其他的兴趣。依我之见，目前的媒体的确过度关注公众人物及他们的私生活。

2020考研英语二作文热门话题及范文：人口老龄化 篇三

Directions:

Write an essay based on the following chart. In your essay, you should

1)interpret the chart, and

2)give your comments.

You should write about 150 words on ANSWER SHEET. (15 points)

范文

The line chart depicts that the percentage of those aged over 60 increased moderately from 6% of the total population in 1990 to 15% in 2010 in China. It is predicted that the proportion will amount to 25% in 2020 and 30% in 2040.

Quite a few factors can account for this phenomenon, but the following might be the critical ones: for one thing, with the implementation of China's family planning policy and the improvement of people's living standard, fewer and fewer people are willing to have more children. Therefore, the birth rate has dramatically dropped, which results in a low proportion of youngsters and a higher proportion of elders. For another, due to the fact that more hospitals are equipped with advanced medical instruments and more professional staffs, many incurable diseases now can be easily cured. As a result, the public can enjoy an increased life span, adding to the growing proportion of old people.

The aging of the population is also a result of social progress and economic development. However, this phenomenon will be likely to bring about some undesirable consequences in the future. Hence it is high time that we figured out some ways to face the up-coming challenges.

大二考研英语作文 篇四

Compared with the forty year old shabby dormitory I am living in now, the one I lived in for three years in high school was heaven: three students shared one brand new suite with air conditioners and a bathroom. In three years time we changed it thoroughly:the color of the floor turned from bright pink into muddy gray, and the closet a hive of insects proliferating among piles of rotten fruit.

And our masterpiece was the bathroom, a never drying swamp which served as the habitat of various kinds of mold, and even rodents, rats would occasionally take the trouble to pay us a visit, and.., all three of us felt like sobbing when we at last had to say good bye to our lovely filthy dormitory. Maybe it is because that the dormitory had changed us as well as wed changed it. The first lesson our dormitory taught us was to look after ourselves.

Frankly speaking, we were not good students at all. I still remember the underwear that was soaked in soapy water for one and a half years before it was finally thrown away. Almost each of the boys dormitories had gradually developed its own unique "fragrance" usually a mixture of rotten fruit, unwashed socks, stunk towels and some junk food. We could tell one dormitory from another by sniffing instead of looking. Our tolerance towards untidiness was amazing. with and paper to sign on.

与我现在住的四十年破旧的宿舍相比，我高中时住了三年的宿舍简直是天堂：三个学生共用一间带空调和浴室的全新套房。三年后，我们彻底改变了它：地板的颜色从亮粉色变成了泥灰色，壁橱里有一大群昆虫在成堆的腐烂水果中繁殖。

我们的杰作是浴室，这是一片永不干涸的`沼泽，是各种霉菌的栖息地，甚至啮齿动物、老鼠偶尔也会不厌其烦地来拜访我们。当我们终于不得不告别我们那肮脏可爱的宿舍时，我们三个人都想哭了。也许是因为宿舍改变了我们，也改变了我们。宿舍教会我们的第一堂课是照顾好自己。

坦率地说，我们根本不是好学生。我还记得那件内衣在肥皂水中浸泡了一年半，最后才被扔掉。几乎每个男生宿舍都逐渐形成了自己独特的“香味”——通常是腐烂的水果、未洗的袜子、脏毛巾和一些垃圾食品的混合物。我们可以通过嗅而不是看来区分一个宿舍和另一个宿舍。我们对不整洁的容忍度是惊人的。使用和纸张进行签名。

大二考研英语作文 篇五

In the picture, there shapes a sharp conflict between the goal keeper and the ball player. The former exaggerates the goal and minimizes himself in his mind while the latter thinks otherwise. Actually, both the goal and the keeper are just in normal size. What causes the problem is that they have overestimated the difficulty they are each faced with. Such attitude towards difficulty will surely produce negative effects on the results.

Difficulties are in the pathway of everyone. To overcome them, we must at first make correct judgment on the situation, which is based on confidence, courage and rational thinking. Lets take memory for example. In the process of learning, students need to remember a lot of things, such as Chemical Elements Periodic Table, ancient articles and mathematical formulae. But many complain that it is hard to remember them accurately and they are ready to give up when they feel so. On the contrary, those who learn successfully are confident about themselves and willing to try although they also feel difficult at first. And later they find the more they practise the memory, the easier it becomes to remember.

In conclusion, if we are to succeed in handling the difficult things, we must have self confidence, judge the situation rationally and be courageous enough to keep trying.

在这张照片中，守门员和踢球者之间形成了尖锐的冲突。前者夸大了目标，在脑海中最小化了自己，而后者则不以为然。事实上，球门和守门员都是正常大小的。造成问题的。原因是他们高估了各自面临的困难。这种对待困难的态度肯定会对结果产生负面影响。

困难在每个人的道路上。要克服这些困难，首先必须根据信心、勇气和理性思维，对形势作出正确的。判断。让我们以内存为例。在学习过程中，学生需要记住很多东西，如化学元素周期表、古代文章和数学公式。但许多人抱怨说，很难准确地记住它们，当他们有这种感觉时，他们已经准备好放弃了。相反，那些成功学习的人对自己很有信心，愿意尝试，尽管他们一开始也感到困难。后来他们发现，他们练习记忆的次数越多，记忆就越容易。

总之，如果我们要成功地处理困难的事情，我们必须有自信，理性地判断形势，并有足够的勇气继续尝试。