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大学英语作文300字汇总五篇

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在日常的学习、工作、生活中,大家对作文都不陌生吧,作文是人们把记忆中所存储的有关知识、经验和思想用书面形式表达出来的记叙方式。为了让您在写作文时更加简单方便,下面是小编整理的大学英语作文300字5篇,希望对大家有所帮助。

大学英语作文300字汇总五篇

大学英语作文300字 篇1

如果我们分析海水的盐度,会发现地区间只有轻微的变化,然而有些小的变化是重要的。 导致海洋的盐度变化的基本过程有三个。

其中之一是通过蒸发的方式即把液态水转化为水蒸气来减少海洋中的水分。这样由于盐留了下来,所以盐度增大。

当然,如果这种方式走向极端,将会余下白色的盐晶体。 与蒸发相反的是降水,如降雨,由此水被加入海中,海水被稀释,从而盐度降低。 这种情形会发生在大量降雨的地区,或江河入海岸处。 因此,盐度通过蒸发减少水分而上升或通过降水或径流增加淡水成分而下降。

一般来说,在阳光很强烈的热带地区,海水的盐度略高于世界上其它没有热带那样多的蒸发的地区。 同理,在江河稀释海水的海岸地带,海水盐度略低于其它海区。

第三个可以变更盐度的过程与海洋中冰的形成和融化有关。 海水冻结时,溶于其中的物质被留了下来。 这样,在新形成的海水冰面的正下方的海水比在冰形成之前有更高的盐度。 当然,当冰融化的时候,会降低周围水中的盐度。 在南极洲边缘的`威德尔海中,结冰过程增加低温海水的盐度,从而形成了浓度最大的海水。 这些大密度的海水下沉,可以在世界海洋的深水域发现。

大学英语作文300字 篇2

Nowadays,_________ is/are doing great harm to ___________.

What are the incentives that drive people to _________? The most important factors should be __________. Furthermore,________. It directly leads to the patent and salient harmfulness that ________.

Consequently, it is high time that the whole society should contribute to the collective efforts to put an end to ________.

大学英语作文300字 篇3

As can be clearly seen from the graph/table/chart (As is shown in the table/figure), great changed have taken place in_______, The_________ have/has skyrocketed/jumped from _____ to _____. When it comes to the reasons for the changes, different people give different explanations. Here I shall just give a begin with, ______What’s more,___________, Last but not least, ________. While it is desirable that ___________, there are still some problems and difficulties for __________ Firstly, __________ ,In addition, __________ ,In a word, __________ .

大学英语作文300字 篇4

Friends play an important part in everyone’s life.

Some people make friends for their own benefits.

A friend in need is a friend in deed.

1)Friends influence your development, maturity and sense of responsibility.

2)These people are not reallyfriends. They only want to be your friends if it

is to their advantage. By this time you should know who are your true friends.

3)A true friend is eager to help you whenever necessary. You can consider yourself very lucky if you have one true friend. You and your true friend have a good understanding of each other

大学英语作文300字 篇5

After passing the 20xx College Entrance Examination, I find my name in the enrolling list ofNanjingAuditUniversitywhich many young people dream of。 As a boy of 18, I am happy to go to such a famous university, so that I want to make my life colorful and fruitful in university。 Here's my plan for university life。

20cc年高考结束后,我在南京审计学院的录取名单上发现了我的名字,这是一所很多年轻人都梦寐以求的大学。作为一名18岁的男孩,我很高兴能去这样的名校,因此,我想让我的大学生活多彩而又充实。以下是我大学生活的规划。