英语作文（优秀）
在学习、工作或生活中，大家最不陌生的就是作文了吧，借助作文可以宣泄心中的情感，调节自己的心情。那要怎么写好作文呢？以下是小编为大家收集的英语作文9篇，希望对大家有所帮助。
英语作文 篇1
板块结构理论描述岩石圈的运动.岩石圈是相对坚硬的地球外层，包括全部地壳和部分地幔。
岩石圈被划分为几十个大小不同形状各异的板块，一般而言这些板块都处于相对运动之中。一道中海脊是板块之间的边界，在那里新的岩石圈的物质从下部注入。
当板块从中海脊脱离时，它们滑向在岩石圈基部较易变形的地层上.因为地球的大小本质上是不变的，只有同等数量的岩石圈物质在其它地方被吞没，新的岩石圈才能生成。
销毁旧岩石
圈的地方形成另外一种板块边界：一块潜没的区域.在这里，一块板块潜没到另一板块的边缘之下并结合入地幔之中。
两种板块边界均与地层系统、地震以及火山活动有关，但在两种边界处观察到的`诸般地质活动却迥然不同.海床扩展说实际上早于板块结构理论。在20世纪60年代它的理论雏形中，描述了海底的生成和毁灭，但没有详细介绍坚硬的岩石圈板块.这个假定不久之后为发现所证实。
该发现表明地球磁场周期性的逆转被记录在海洋地壳中。当岩浆从中海脊下涌起的时候，岩浆中的磁铁矿物质按地磁场的方向被磁化岩。
浆冷却并凝固下来后，地磁场的方向和磁极被保留在磁化了的火山岩中。
磁场的逆转形成一系列与断层轴线平行的条形磁区。
这样海洋壳就扮演了磁带的角色，记录下可以鉴定时间的地磁场的历史.条形磁区的宽度表明了海底扩展的速度。
the theory of plate tectonics describes the motions of the lithosphere， the comparatively rigid outer layer of the earth that includes all the crust and part of the underlying mantle. the lithosphere(n.[地]岩石圈)is divided into a few dozen plates of various sizes and shapes， in general the plates are in motion with respect to one another. a mid-ocean ridge is a boundary between plates where new lithospheric material is injected from below.
as the plates diverge from a mid-ocean ridge they slide on a more yielding layer at the base of the lithosphere.since the size of the earth is essentially constant， new lithosphere can be created at the mid-ocean ridges only if an equal amount of lithospheric material is consumed elsewhere. the site of this destruction is another kind of plate boundary: a subduction zone. there one plate dives under the edge of another and is reincorporated into the mantle. both kinds of plate boundary are associated with fault systems， earthquakes and volcanism， but the kinds of geologic activity observed at the two boundaries are quite different.the idea of sea-floor spreading actually preceded the theory of plate tectonics. in its original version， in the early 1960’s， it described the creation and destruction of the ocean floor， but it did not specify rigid lithospheric plates. the hypothesis was substantiated soon afterward by the discovery that periodic reversals of the earth’s magnetic field are recorded in the oceanic crust. as magma rises under the mid-ocean ridge， ferromagnetic minerals in the magma become magnetized in the direction of the magma become magnetized in the direction of the geomagnetic field.
when the magma cools and solidifies， the direction and the polarity of the field are preserved in the magnetized volcanic rock. reversals of the field give rise to a series of magnetic stripes running parallel to the axis of the rift. the oceanic crust thus serves as a magnetic tape recording of the history of the geomagnetic field that can be dated independently; the width of the stripes indicates the rate of the sea-floor spreading.
英语作文 篇2
Dear Sir or Madam,
I am head of a household electric appliance plant, which is a major manufacturer of high-quality recorders. Im writing the letter for the purpose of inviting you to the exclusive presentation of our new models and a reception.
The presentation is scheduled to take place at Noble Hotel on the third of January. Ill fell it an honor if you could come. There will also be a reception at the tow p.m. I hope you will attend too.
Since your presence is of vital importance to this occasion, I do hope you can make it. Just call our office at 010-69985421, and we will glad to reserve a place for you. Im looking forward to seeing you at that day.
Yours truly,
Li Ming
英语作文 篇3
Built the cit f Fuxin in 1940, the cit nae fr the "aterial Minfeng Fu, an entirel new l" eans. Fuxin Cit in Lianing Prvince is lcated in the nrthwest, in the Nrth-East Asia and the Bhai regin, the central zne f the Bhai Sea and the Gld Cast landscape dependenc, is an industrial cit in Lianing Prvince f anial husbandr, fuel, sugar prductin base and e grain-prducing areas , an iprtant energ base in China, ne nwn as "cal cit" called. It is lcated in east lngitude 121 ° 1'-122 ° 56 ', latitude 41 ° 41'-42 ° 56' between. Shenang, capital f east, suth, Liadng Ba f Bhai Sea, Dalian, Hng ng and acrss the Suth and the Nrth, West and inzhu Prt, the Beiing-Tianin regin lined lapel clthing,
Bhai Sea ecnic zne is an integral part f ne. The cit's ttal area f 10,355 square ileters, including urban planning area f 674.02 square ileters, 53 square ileters area f built-up area. Five cunties under the urisdictin f the district, that is, Fuxin
英语作文 篇4
Nowadays,it is a heatedly discussed topic that empty-nesters,which has become a social problem we often follow with interest.Most of the middle-aged people have to leave their parents to seek for a better life. But their elderly parents at home to take care of themselves.The situation in rural area in more serious,there are no activities for them so that they are busy with the farm work to eke out a living.
Filial piety is a traditional national culture in China.when we are as a child,our parents in order to bring up us,they can give up all things.However,they are becoming increasingly lonely when they ageing from day to day.
it’s our responsibility to care for our parents and our care is what they really need in life. So, no matter how busy you are, remember to care about them, talk to them frequently.
At length,I want to say:the place with the family members that is called the real family,May I wish all the parents healthy,and let our when children take up ways of often home to see,listen to parents’ feelings.
英语作文 篇5
private tutoring is “in”.a recent investigation shows that about 80 percent of pupils have private tutors.
such a popular practice indicates that people are attaching greater importance to education. many parents, for various reasons，missed the chance of obtaining a good education. when their children meet with difficulties in study, they arc helpless, private tutoring is the only solution. as private tutoring is usually one-to-one, the teacher knows the strong points as we11 as the weak points of the pupil, clearly．
however, private tutoring has its own disadvantages, for one thing, it takes up so much of the pupils’ time that they can hardly find enough time for rest and entertainment, which are essential for their physical and mental health. for another, some teachers, busy“shuttling” from one family to another, tend to neglect their regular teaching duties. what’s more， some teachers are eager to help pupils do well in the test, offering the so-ca11ed tips for test－taking father than help them acquire what is more meaningful．www
generally speaking, its disadvantages outweigh its advantages. greater emphasis should be laid on classroom teaching and practice, on the improvement of teaching quality and on the tapping of the pupils’ potentials. only in this way can we generation be healthily brought up.
英语作文 篇6
The sports meet of our university was held on a charming spring day.The stand around the playground was packed with spectators.Firt came the parade of the opening ceremony.Athletes walked into the field in orderly arrays.After the opening address was delivered,the athletes withdrew.Then there was a performance of group callisthenics.
The contests and races of track and field events were exciting.The runners of 100 metre race dashed to the terminal point.The winner took the lead only by a small fraction of second.A boy athlete gave a javelin a lorceful throw.It shot across the sky and arrived at a point far ahead of the former record.A girl athlete,in a long distance race,stumbled over the foot of another athlete and fell down.She rose to her feet,clenched her teeth,and continued her running.The most attractive is the relay race that was so intense that all spectators cheered,hailed and applaused.
The sports meet was over.Our athletes not only gained a good harvest of prizes,but also strengthened their body and tempered their will.
英语作文 篇7
When it comes to English learning, people may start pouring out their woes about how it difficult to learn. Well, as an English major student, I think there are several ways we can do to improve our English skills and make it easier to learn. Some English learners believe that extensive reading is an important way to learn English. I really agree with that. For every English learner, extensive reading is a indispensable part to enhance their English. There are some of the advantages of reading:
当提到学习英语时，人们就开始大倒苦水，抱怨英语是有多么的难学。好吧，作为一名英语专业的学生，我认为我们有几种方法可以使我们的'英语水平提高，让其更容易学。一些英语学习者认为泛读是学习英语的重要方法。我同意这种看法。对于每个英语学习者来说，泛读是提高英语水平不可缺的一部分。关于阅读，有这些好处：
英语作文 篇8
TV set in every home has not been merely among imaginary depiction in fantasy fiction, coming true nowadays as it has become even a thing that can be thrown away without pity. Therefore, number as the basic privilege, most entertainment corporations utilize it as the access to profits by broadcasting ads, movies or other programmes. As the proportion of atmitting and using people against the none-users is high, in most country, the TV can be grouped into one of the main medium concomitant with the peak of radio.
Main medium as we group it, it contains main infro. . The ken broaden by TV is undeniable. Without trudging in the igneous desert we "wow" the pyramid at home, no danger from sharks we visit coral reef with our mouth in shape of O and wearing pants and T-shirts, we have a glance of the Arctic, holding a cup of ice-cream. Broden easily, broaden fast, that‘s what TV bring to us.
Inferior things, however, are brought by TV as well. Left the violence on TV, which should be concerned by the government, unsaid but the health concerned by the every of us is undermined by long term watching TV. Albeit it is so, this is never to say that we should banish TV, as the advantages overweigh the counterpart.
英语作文 篇9
which is better: to get scores or to get abilities?
when asked such a question: which is better, to get scores or to get abilities, many students answer like mine would be that to get abilities is better than to get scores. to make it clear, we have to compare the both sides.
two different aims lead to two different methods and two different results. if we are eager to get good marks, our teachers would take a cramming-duck hand to force us to do much hard work. we have to learn by heart a lot of lifeless knowledge. we have to recite many many poems and tets. we have to carry a heavy school-bag. we have to do much homework after school. all of what we do is merely for a single purpose----to pass eaminations. as a result we cannot enjoy any thing. we have no free time. we have no holidays. we have no games and plays. we have no pleasure. we have no childhood. in the end we have no skills or capabilities① ecept some dead knowledge from books. we are not able to wash our clothes. we are not able to cook meals. we are not able to labour in the fields. we are not able to operate machines in the factories. in a word we cannot do any practical work.
on the other hand, if we intend to gain abilities, our teachers will take fleible and varied measures in their teaching practice. they will provide for all the students chances to share equal education and we students are supposed to enjoy all-round② development. while we learn knowledge from books, we are showed how to use computers, how to make a radio or recorder, how to make eperiments and researches in sciences; how to play the piano or violin, how to sing or dance, how to draw or paint pictures and portraits; how to prepare a dish or how to make bread; how to plant trees and grass, how to go in for farming by means of scientific methods; how to do business and how to keep in touch with others. all in all, we can play an active part in our studies. at last we will master not only book knowledge, but also the other three abilities----living ability, working ability and mabageable③ ability. thus, we will serve the people better.
by comparing the two ideas, we can come to a close that the purpose to get scores is far worse than the aim to get vanous abilities. only when we know well both scientific knowledge and practical skills, can we live happily and work wonderfully in the society in the coming future.
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