英语作文

有关英语作文4篇

在学习、工作乃至生活中，大家或多或少都会接触过作文吧，作文根据体裁的不同可以分为记叙文、说明文、应用文、议论文。怎么写作文才能避免踩雷呢？下面是小编帮大家整理的'英语作文4篇，希望对大家有所帮助。

英语作文 篇1

你相信吗，开水比冷水更快结冰!这就是所谓的姆潘巴现象。这种现象到底基于何种原理呢?下文将会为您揭开答案。

A common chemical process may explain how hot water can freeze more quickly than cold, a report on the web site of New Scientist said on Thursday.

A scientist of the University of Washington at St Louis found that what is behind the so-called "Mpemba effect is that the phenomenon is all to do with solutes," the report said.

The Mpemba effect came to be known after a Tanzanian school student named Erasto Mpemba noticed that the sugared milk he used to make ice cream froze more quickly if it started out hot.

Jonathan Katz, of the University of Washington, who worked out the details of the Mpemba effect, said the solutes are calcium and magnesium bicarbonate, which make most drinking water "hard" and when the water is heated, these elements precipitate to form the solid scale that "furs" up the inside of a kettle.

Katz said water that has never been heated still contains these solutes and as it freezes, ice crystals form, and the concentration of solutes in the remaining water becomes ever higher - up to 50 times as high as normal, thus lowering the freezing point of the water.

According to Katz, there is a second, related effect that hampers the freezing of water that has never been heated. The lowering of the freezing point reduces the temperature difference between the liquid and its freezing surroundings. "Since the rate at which heat is lost from the water depends on this temperature difference, water that has not been heated has greater difficulty losing heat," Katz was quoted as saying.

Katz said the two effects combined could perfectly explain why water that has been heated freezes more quickly than water that has not.

Katz is waiting for someone to do experiments to test his theory, New Scientist said.

Solute: 溶质

Magnesium：镁

Bicarbonate：重碳酸盐

Precipitate：沉淀

Hampers：阻碍

英语作文 篇2

Jim likes Zhejiang food because it's delicious. He can't stand Sichuan food because it's very hot(辣). He likes Guangdong food. He doesn't mind Beijing food and he sometimes eat it . He doesn't like Human food because it doesn't agree with him (它不合他的口味)。

英语作文 篇3

Dusk is coming. It's time for the sunset. Look, the sky is getting dim gradually. The setting sun is covering the earth with golden rays. Not only the sky and water surface but also I myseff am turning into golden yellow. Several white birds are flying freely above the water. Willows are dancing in the breeze gracefully. Soon, the sun has buried itself in the thick clouds. But I still can see the beautiful scene in the sunset. It will be always in my mind. I love sunset.

天已黄昏，太阳就要落山了。看，天空正在慢慢变暗，正在下山的太阳给大地洒下一片金色的余辉。不仅是天空和水面，就连我自己也变成金黄色的了。有几只白色的小鸟自由自在地飞翔在水面上，柳枝儿随着微风翩翩起舞。很快，太阳就隐藏在厚厚的云层里了。可我依然看得清日落后的迷人景象，它将永远留在我的脑海里。我爱日落。

英语作文 篇4

To choose a new holiday is not easy. There have been many great people throughout history and many important events. Therefore, if I had the opportunity to establish a new holiday, I would do something completely different. Rather than honor a person or a human event, I would choose to celebrate man’s most loyal companions-pets.

In my opinion, establishing a National Pet Day is a good idea for two very important reasons. First, it would remind us of how important animals are to us-not just cats and dogs and other common household pets, but also animals such as horses and those raised in captivity in zoos and animal parks. All of them provide us with a connection to the natural world. In addition, our personal pets give us companionship, devotion and affection. Second, a holiday in honor of our pets would remind us of our responsibilities toward them. Too often these days pets are taken for granted or even neglected when their owners become too busy to pay much attention to them.

These are my suggestions for a new holiday. Although it may seem a little unconventional when compared with holidays that honor important statesmen or religious figures, it would serve to make people recognize an important part of our lives that is too often neglected- the world of animals.