英语作文300字

时间：2026-03-16 07:10:22 英语作文

英语作文300字4篇（经典）

　　在我们平凡的日常里，大家最不陌生的就是作文了吧，作文是通过文字来表达一个主题意义的记叙方法。那么一般作文是怎么写的呢？下面是小编收集整理的英语作文300字4篇，欢迎大家借鉴与参考，希望对大家有所帮助。

英语作文300字4篇（经典）

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。

英语作文300字篇2

　　Mrs. Smith and her children David and Joy are going to the park.

　　They are happy.They are boating in the middle if the lake.

　　David is eating an apple and Joy eating bread. They are hungry.

　　They are watching the fish in the water.

　　Oh, dear the girl is in the water. She can’t swim.

　　Mrs. Smith is jumping into the water.Mrs. smith is swimming to her daughter.

　　David is looking at them. He’s worried.

　　Mrs. Smith is saving her daughter. Joy is saved.

英语作文300字篇3

　　Our school is in the west of the city. It is very big with a tall teaching building. There are thirty classrooms, a modern library, a dinning hall and a gym.

　　There is a big playground where we often have sports. There are lots of trees and flowers beside the playground.

　　There are more than five hundred students and teachers in our school and we all work hard.

　　Our school is so beautiful that we all like it very much.

英语作文300字篇4

　　Being a monitor is my dream, because I think it is so cool and I will have the power.

　　So when I go into the middle school, I make my effort to be a monitor, luckily, all of my classmates trust me and elect me as their monitor. I am so happy, my little dream has come true, but I never expect that the monitor’s duty is so heavy.

　　I can’t do what I want, every decision I make needs to consider so many things, if I go the wrong way, my classmates will have loss. As the saying that the more power, the more responsibility, I have pressure, but I learn many things, I become mature and can deal things well.

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