解放军文职招聘考试互联网-解放军文职人员招聘-军队文职考试-红师教育
发布时间：2017-08-29 20:52:59Directions:For this part you are allowed 30minutes to write a composition on the topicInternet. You should write at least 120 words andbase your composition on the outline below:互联网使用的现状，大学生是否应该使用互联网，人们的看法不同，我的看法。In recent years, people are developing aninseparable relationship with Internet. As is known toall, it is convenient for us to click the mouse whensurfing on line, either to entertain ourselves or to meet the work s needs.On the one hand, no one denies that Internet is currently one of the most useful media inour daily life. As a college student, I get on line every day to exchange information through e-mails with my net friends. But on the other hand, a good many people admit that they are toomuch addicted to Internet to maintain a regular and wholesome lifestyle.Thus, it is necessary for us to use Internet in a reasonable way and restrain fromoverindulgence. After all，Internet is invented to enrich our life, and to improve the efficiencyof our work rather than shackle us with a chain.以上就是英语四级作文高分冲刺模板(15)，内容不多，但是实用性较强，同学们别忘了背几篇之后整理出来属于自己的模板哦，不要给阅卷老师看到千篇一律的 整容脸 ，化有为无我们的作文自然能吸引到老师的青睐！
解放军文职招聘考试The Source of Energy-解放军文职人员招聘-军队文职考试-红师教育
发布时间：2017-12-20 22:00:07The Source of EnergyA summary of the physical and chemical nature of life must begin, not onthe Earth, but in the Sun; in fact, at the Sun"s very center. It is herethat is to be found the source of the energy that the Sun constantly poursout into space as light and heat. This energy is liberated at the center ofthe Sun as billions upon billions of nuclei of hydrogen atoms collide witheach other and fuse together to form nuclei of helium, and in doing so,release some of the energy that is stored in the nuclei of atoms. Theoutput of light and heat of the Sun requires that some 600 million tons ofhydrogen be converted into helium in the Sun every second. This the Sunhas been doing for several thousands of millions of years. The nuclearenergy is released at the Sun"s center as high-energy gamma radiation, aform of electromagnetic radiation like light and radio waves, only of verymuch shorter wavelength. This gamma radiation is absorbed by atoms insidethe Sun to be reemitted at slightly longer wavelengths. This radiation, inits turn is absorbed and reemitted. As the energy filters through thelayers of the solar interior, it passes through the X-ray part of thespectrum eventually becoming light. At this stage, it has reached what wecall the solar surface, and can escape into space without being absorbedfurther by solar atoms. A very small fraction of the Sun"s light andheat is emitted in such directions that after passing unhinderedthrough interplanetary space, it hits the Earth.能量的来源概说生命的物理和化学特性必须始于太阳--确切地说，是太阳的核心，而非地球。 能 量来自太阳的核心。在这里，太阳不停地以光和热的形式向空间倾泻出能量。 数十亿计的 氢原子核在太阳的核心碰撞并且聚变生成氦。 在此过程中一部分原本储存于原子核中的能量被释放出来。 太阳所产生的光和热需要每秒将六亿吨氢转化为氦。 这样的转化在太阳中已经持续几十亿年了。 核能在太阳的核心被释放为高能的伽马射线。 这是一种电磁射线， 就象光波和无线电波一样，只是波长要短得多。这种伽玛射线被太阳内的原子所吸收，然 后重新释放为波长稍长一些的光波。 这新的射线再次被吸收，而后释放。 在能量由太阳内部一层层渗透出来的过程中，它经过了光谱中 X 射线部分，最后变成了光。 在此阶段，能量到达我们所称的太阳表层，并且离散到空间而不再被太阳原子所吸收。 只有很小一部分 太阳的光和热由此方向释放出来，并且未被阻挡，穿越星空，来到地球。
