关于做实验的英文作文开头_初三真题英语作文4篇

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关于做实验的英文作文开头_初三真题英语作文4篇

关于”做实验的开头“的英语作文范文4篇,作文题目:At the beginning of the experiment。以下是关于做实验的开头的初三英语范文,每篇作文均为真题范文带翻译。

高分英语作文1:At the beginning of the experiment

The first step is to remove the magnesium oxide on the surface of magnesium oxide. The second step is to burn alcohol on a magnesium lamp and hang it on asbestos paper. The third step is that the burned magnesium reacts with oxygen in the air to emit dazzling light and give off a lot of heat, resulting in white smoke producing white magnesia powder.

The fourth step is to react with nitrogen in the air to produce a small amount of gray green magnesium nitride.

中文翻译:

第一步是清除氧化镁表面的氧化镁,第二步是在镁光灯上燃烧酒精并悬挂在石棉纸上第三步燃烧的镁和氧气在空气中产生反应,发出刺眼的光,放出大量的热量,导致白烟产生白色氧化镁粉体第四步可以在空气中与氮气反应生成少量灰绿色的氮化镁。

万能作文模板2:在实验开始时

One day, I saw such an interesting thing in the book: if under certain conditions, plastic bottles will be "water" by them and blow bubbles. I think this is a very interesting experiment. They plan to do it by themselves.

In order to find out why the bottles "drink" bubbles, I'd better prepare the following materials according to the instructions in the book: several soft straws, a plate After everything was ready, I began to do the experiment. The first step was to seal the bottle with rubber glue and insert the straw. The second step was to connect the other straw with the first one so that it could be knocked into the cup.

The third step was to find out the experimental situation In the fourth step of putting the ink back into the blue water, I put the bottle into a large plate and bent the straw. The water in the cup was only four steps more than that prepared in advance. The next step first appeared in the experimental situation.

I carefully poured the hot water bottle on the plastic wall without starting a movement. So I continued to hold the bottle and watch the glass move Soon, I started to drink on the bottle under the bubble from the straw. I took out the ice water from a part of the ice in the refrigerator and poured it down.

It seemed that I started a failure. I continued to patiently repeat this action, just like a straw in his eyes. Ah, I dropped a drop of real blue ink from the straw, and the bottle "drank" my real life It is a scientific principle that my experiment has been successfully incorporated into this experiment again and again.

When the characteristics of the object are filled with heat to the outer wall of the plastic bottle, the air in the bottle will expand and flow to the glass, which will increase the pressure. A cup of water pressure will come out, and the water will bubble out with a straw. When the ice water is poured into the bottle from the outside of the wall, the air in the bottle will be cooled The pressure is very small, water will run into the bottle, I also know a lot about the situation of life, really funny, love students use their brains, let's explore together.

中文翻译:

有一天,我在书上看到了这样一件有趣的事情:如果在一定的条件下,塑料瓶会被它们“水”,吹泡泡我觉得这是一个很有趣的实验,它们打算自己做一次,为了弄清楚为什么瓶子会“喝”泡泡,按照书上的提示我最好准备以下材料:几根柔软的吸管、一个盘子、一杯自来水、一杯热水、一杯冰水、胶带、橡胶水泥、墨水、一个大塑料瓶等一切准备就绪后,我开始做实验第一步,我用橡胶胶把瓶子封好,然后插入吸管第二步,我用胶带把另一根吸管与第一根连接起来,这样它就可以敲入杯子第三步是寻找实验情况了,我把墨水放回染成蓝色的水的第四步,我把瓶子放进一个大盘子里然后弯曲吸管,插入杯子里的水只比预先准备好的步骤多出四步,下一步在实验的情况下首先出现,我小心翼翼地用热水瓶倒在塑料墙上,没有开始一个动作,于是我一边继续拿着水瓶一边看玻璃的运动,很快,竟然从吸管里开始在水泡下的瓶子上,“喝”了我已经从冰箱里的一部分冰里拿出冰水,倒了下去,似乎开始一个失败的我继续耐心地重复这个动作,就像他眼中的一根稻草辛苦付出的回报一样,啊,从吸管里滴下一滴真的蓝色墨水,瓶子“喝”了我的实验一次又一次成功地将我的实验成功地纳入这个实验是一个科学的道理,当物体的特性被热灌到塑料瓶的外壁时,瓶子的空气热膨胀,流向玻璃,这就增加了压力,把一杯水压出来,用吸管把水泡泡出来,当冰水从墙外往瓶子里灌时,瓶子里的空气被冷却了,里面的压力很小,水就会跑进瓶子里我也知道很多关于生活的情况,真的很搞笑,爱的同学们动动脑筋,让我们一起去探索。

满分英语范文3:做实验的开头

At present, the experimental use of animals has become a widespread concern in the world. People have different views on animal experiments. They think that animal experiment is an extremely rough behavior, especially dogs, cats, rabbits, mice and other mammals are the main victims of the experiment, usually human pet owners strongly oppose it, because they firmly believe that animals will suffer from pain both physically and psychologically When modern society advocates equality, it is inhumane not to respect non-human creatures.

Many experts point out that it is very dangerous to rely on the results of animal experiments, because they are different from us in many aspects, such as body structure. We can't imagine that humans try to jump from a nine story high place without any protection, because cats are from the same experiment Who survived. Proponents of animal use claim that using animals is a wise choice, on the one hand, because their bodies function like ours, for example, they have colds, stomach and heart diseases, and more importantly, they are affected by diet and habits.

The results of this test may not apply to humans, although they are highly related to human conditions, on the other hand, these students When objects feel uncomfortable, they yell and behave abnormally, which is exactly what the researchers expect. In addition, there is an easy question to answer: is it more cruel to test directly on people who know little about objects? In short, there is nothing more like human beings than animals, which is most suitable for personal experiments. I am not a supporter of animal experiments, but there are more suitable ones to replace them.

I accept using animals for experiments, but take good care of them when they are not in the laboratory.

中文翻译:

目前,动物的实验性使用已成为世界各国广泛关注的问题,人们对动物实验有不同的看法,认为动物实验是一种极其粗暴的行为,尤其是狗、猫、兔、鼠等哺乳动物是实验的主要受害者,通常是人类宠物主人强烈反对,因为他们坚信动物在生理和心理上都会遭受痛苦,当现代社会提倡平等时,不尊重非人类的生物是不人道的,许多专家指出,依赖动物实验的结果是非常危险的,因为它们在许多方面与我们不同,比如身体结构,我们无法想象人类试图在没有任何保护的情况下从九层楼高的地方跳下去,因为猫是从同一个实验中幸存下来的。赞成使用动物的人宣称使用动物是一个明智的选择,一方面是因为它们的身体与我们的身体功能相似,例如,他们会感冒,患有胃病和心脏病,更重要的是受饮食和习惯的影响,这项测试的结果可能不适用于人类,尽管它们与人类的情况高度相关另一方面,这些生物感到不舒服时会大喊大叫,行为异常,这正是研究人员所期望的。此外,还有一个容易回答的问题:直接在对物体知之甚少的人身上进行测试是不是更残忍?总之,没有什么比动物更像人类最适合个人实验了,我不是动物实验的支持者,但还有更多合适的可以代替它们,我接受用动物做实验,但在它们不在实验室的时候要好好照顾它们。

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