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There are two main causes of cancer: heredity and environment We can do nothing to change our heredity， that is， the basic physical characteristics that were passed on to us by our parents However， we can do a great deal to control our environment， which may account for 80-90 %of all cancers

Environmental pollution can be divided into two kinds: personal and impersonal Personal pollution may be defined roughly as unhealthy habits such as smoking， drinking， and eating the wrong foods Clearly， with enough will power we can control this personal environment

Impersonal pollution， on the other hand， refers to those things which are beyond our individual control One example would be industrial pollution， which is very hard to control because of the expense involved It would be expensive in terms of profits and perhaps jobs The American automobile industry， for example， resisted the law requiring smog-control devices because it feared the added expense would reduce profits Nevertheless， some laws protecting the environment have been quite successful in reducing pollution

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光盘行动英语作文参考范文

Recently, "Clear Your Plate" campaign is more and more popular in society, which advocates saving against wasting. The campaign draws our attention to wasting on campus. Some students are noticed to throw away a lot of food in the canteen. As is often the case, some lights are still on with nobody in classrooms. What's more, many a student spends much money buying unnecessary items.

As far as I am concerned, it's high time that we fought against wasting. Here're my suggestions. Firstly, I think our school should carry out various activities to arouse students' awareness of saving. Secondly, relevant rules and regulations are supposed to be made to punish those who waste things. Most importantly, we should form the habit of saving from now. It is everybody's duty to save resources.

最近，“光盘”行动在社会上越来越流行，提倡节约反对浪费。这个行动引起了我们对校园浪费的注意，有些学生注意到在餐厅扔掉很多食物。通常情况下，在无人的教室一些灯仍然打开。更重要的是，许多学生花很多钱买不必要的东西。

至于我，是我们反对浪费的时候了。下面是我的建议：首先，我认为我们的学校应该开展各种活动，激发学生的节能意识。其次，相关法规应该对那些浪费行为作出惩罚。最重要的是，我们应该养成节约的习惯，从现在开始，节约资源是每个人的职责。

A Heavy Rain英语作文参考范文

That was a morning in the early of June。 I took a bus to my school in the suburb which was surrounded by rice paddies and ponds。 The sky was gray with the gloomy clouds congregating gradually along the far eastern horizon。 "There must be a heavy rain soon。" I spoke to myself。

When I hurried into the classroom， the sky， gray before， was shrouded now by black clouds， darken to twilight， I felt quite stuffy， while it was quite calm， without wind。 I saw the leaves of trees and grass static， which seem to await something tohappen。 Several minutes later， I saw the lightening split the clouds and heard the thunders following。 Suddenly， the curtain of rain fell and the wind blew。 soon the grass flattened under the wind and the rain。 With the rain forming like a fog， the sky became bright。 I took several deep breathes。 I felt comfortable。

The heavy rain lasted three hours and stopped when the class was over。 The air was so fresh and the sky was so clear。 I felt like a new man myself。

杂交水稻之父英语作文参考范文

So far, the world's average per-mu yield of rice remained at approximately 200 kg. Chinese Yuan Longping led his research team, through the haze of science to give the world the power of a strong fight against hunger. Therefore, China's hybrid rice by the world known as the "Oriental magic rice."

Rice even higher than in sorghum, rice was also longer than the broom, rice as big as peanuts, he and his aides sat on rice cool shade below! Cities and villages, river north and south, both inside and outside China in the human will never be hungry, they excitedly spread the news of a legendary name - Yuan Longping

1. In September 1930 in Beijing, Yuan Longping, a child born on the dream of becoming a scientist

2. Since 1953, graduated from Southwestern University, he has been conducting scientific research in agriculture

3. The last century 70's, he found very difficult to improve rice production, we decided to engage in hybrid rice research

4. There is no doubt that he was the world's food production has made great contributions to

5. Because of his great achievements, he received many honors and awards, including the "World Food Prize"

Swine flu came英语作文参考范文

"Swine flu " came we are living in the place that is full of danger! In the school there are a few fellow students on our class cold and have a fever! Some classmates are done very realistically! Intended alienation these a few classmates! It is to pay no attention to to them pay no attention to not pay attention to! Seem to think they are affected went up " swine flu " like! I feel this class ases if lost our most powerful weapon -- solidarity cooperates! Those a few students are uncomfortable to returned the home! Face green lip is white they by " serious illness " whole do not know to make appearance! I still dread a bit really " swine flu " ah!

and ever said to a few countries were affected in news " swine flu " virus! Let this " nick hand " kill much person dead! I couldn\'t help crying our person is innocent! But why doesn\'t the government endeavor to strengthen medical side issue? Fortunately China has not discovered this kind of bug on infection but I still request it to had better not use visiting China! Because I do not love to have Chinese sistermeet be in distress! Do not think each country be in distress more!

" swine flu " ask you to go self-consciously! Here does not have your portion this is the Eden of the mankind and animal!