2019年07月21日 08:58:56|来源:国际在线|编辑:康互动
Plate Tectonics and Sea-floor Sping 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 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 belows. 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 sping 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 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 sping. 596随着平静岁月的流逝,维多利亚美丽的容颜开始渐褪;他似乎觉得她年轻时的成熟思想也开始变得不再锋芒毕露,就像果实在树上挂得过久他意识到自从他第一次见到她,她从来没有改变过;她只是变得更加成熟、温婉和甜美 A Perfect Wife By Ellen Glasgow After thirty years of married happiness, he could still remind himself that Victoria was endowed with every charm except the thrilling touch of human frailty. Though her perfection discouraged pleasures, especially the pleasures of love, he had learned in time to feel the pride of a husband in her natural frigidity. he still clung, amid the decay of moral platitudes, to the discredited ideal of chivalry. In his youth the world was suffused with the after-glow of the long Victorian age, and a graceful feminine style had softened the manners, if not the natures, of men. At the end of that interesting epoch, when womanhood was exalted from a biological factsintosa miraculous power, Virginius Littlepage, the younger son of an old and affluent family, had married Victoria Brooke, the grand-daughter of a tobacco planter, who had made a satisfactory tune by saking his plantation and converting tobaccos into cigarettes. While Virginius had been trained by stern tradition to respect every woman who had not stooped to folly, the virtue peculiar to her sex was among the least of his reasons admiring Victoria. She was not only modest, which was usual in the nineties, but she was beautiful, which is unusual in any decade. In the beginning of their acquaintance he had gone even further and ascribed intellect to her; but a few months of marriage had shown this to be merely one of the many delusions created by perfect features and noble expression. Everything about her had been smooth and definite, even the tones of her voice and the way her light brown hair, which she wore a la Pompadour, was rolled stiffly back from her ehead and coiled in a burnished rope on the top of her head.   A serious young man, ambitious to attain a place in the world more brilliant than the secluded seat of his ancestors, he had been impressed at their first meeting by the compactness and precision of Victoria's orderly mind. in that earnest period the minds, as well as the emotions, of lovers were orderly. It was an age when eager young men flocked to church on Sunday morning, and eloquent divines discoursed upon the Victorian poets in the middle of the week. He could afd to smile now when he recalled the solemn Browning class in which he had first lost his heart. How passionately he had admired Victoria's virginal features! How fervently he had envied her competent but caressing way with the poet! Incredible as it seemed to him now, he had fallen in love with her while she recited from the more ponderous passages in The Ring and the Book. He had fallen in love with her then, though he had never really enjoyed Browning, and it had been a relief to him when the Unseen, in company with its illustrious poet, had at last gone out of fashion. Yet, since he was disposed to admire all the qualities he did not possess, he had never ceased to respect the firmness with which Victoria continued to deal in other ms with the Absolute. As the placid years passed, and she came to rely less upon her virginal features, it seemed to him that the ripe opinions of her youth began to shrink and flatten as fruit does that has hung too long on the tree. She had never changed, he realized, since he had first known her; she had become merely riper, softer, and sweeter in nature.   Her advantage restedswheresadvantage never fails to rest, in moral fervour. To be invariably right was her single wifely failing. his wife, he sighed, with the vague unrest of a husband whose infidelities are imaginary, was a genuinely good woman. She was as far removed from pretence as she was from the posturing virtues that flourish in the credulous world of the drama. The pity of it was that even the least exacting husband should so often desire something more piquant than goodness.(from They Stooped to Folly, 199) 01953Reduction of Your TensionAlternate tasks blocking out an entire day or week a high-priority project increases your anxiety without boosting your productivity -in fact, you may lose perspective and focus. You need to create a rhythm to your work to recharge.Every 60 to 90 minutes, take a break from your primary activity to do something different minutes. If you've been ing at your desk, walk into someone's office to brainstorm on another project. Don't worry about breaking your concentration. You'll return to your task refreshed and determined.Shake a leg, regular exercise is critical to stress management, and mini workouts during the day can release pent-up energy. Most people tend to neglect some exercise which you can actually do everyday, such as walk to your or someone's office instead of taking the elevator stand up and stretch your back and neck muscles while you are on the phone, and so on.Straighten up your desk, rearranging pencils may not be a m of procrastination. after all. It has been proved that tiding your desk is one of the most common, and effective ways workers calm and focus themselves. Organizing helps reduce tension and get into a productive frame of mind. 819

Acountry maid was walking along with a can of milk upon her head, when she fell into the following train of reflections.The money which I shall sell this milk will enable me to increase my stock of eggs to three hundred.一个村姑头上顶着一罐牛奶在路上行走走着走着,她的脑子里浮现出一连串的幻想:我卖了这罐牛奶后,用这笔钱买鸡蛋,这样我有的鸡蛋可以增加到300个These eggs, allowing what may prove addle, and what may be destroyed by vermin, will produce at least two hundred and fifty chickens用这300个鸡蛋孵小鸡,就算有坏的、生虫的,至少也能孵出50只小鸡The chickens will be fit to carry to market just at the time when poultry is always dear;so that by the new year I cannot fail of having money enough to purchase a new gown.等小鸡长大后,正好能赶上卖个好市价;那么到了新年,我就能有钱买一件新晚装Green - let me consider - yes, green becomes my complexion best, and green it shall be.买一件绿色的------让我好好想想------对,绿色与我的肤色最相衬In this dress I will go to the fair, where all young fellows will strive to have me a partner;我穿上这件衣去赶集,所有的年轻小伙子都会抢着邀请我做舞伴;but no - I shall refuse every one of them, and with a disdainful toss turn from them.;但是不行------我要轻蔑地把头一扬,转身过去不理他们,让他们人人都碰个钉子Transported with this idea, she could not bear acting with her head the thought that passed in her mind, when down came the can of milk!她想得得意忘形,情不自禁地把头一扬,刹那间,牛奶罐跌了下来!And all her imaginary happiness vanished in a moment她幻想的一切幸福瞬间破灭了 8

口语动词短语:let someone off 放某人一马 -01-7 19:: 来源: let someone offlet someone off是指「放某人一马」,也就是let someone off the hook,就如同你在钓鱼,鱼儿上了「钩」hook,而你把它放掉let it off the hook「放它一马」come hell or high water这个短语的使用时机是当你要去执行一项任务或是做一件事之际,只许成功不许失败的决心就犹如中文的「就算天崩地裂…」,比喻不论发生什么状况都要去完成使命可以用在句首当作一句话的开头,或是放在句尾补述 动词 短语 口语 hook

我们刚结婚时朋友们把我们叫做“恩爱鸟”, 我想我和唐不愧于这个名字由于我们俩都是全日制学生, 靠打工挣学费, 所以手头总是很紧有时我们为了买个冰淇淋蛋卷就要攒好几天的钱即使如此, 我们那个狭小、简陋的寓所却像天堂一般, 你要知道, 这是因为有了爱When Snowball Melted Lovebirds. That’s what all our friends called us when we first married. I guess Don and I deserved1) it. Money was tight because we were both full-time students, working to pay our way through school. Sometimes we‘d have to save up days just an ice cream cone. Still, our tiny, drab apartment seemed like paradise. Love does that, you know. Anyway, the more we heard the term“lovebirds, ”the more we thought about birds. And one day we started saving up a couple of lovebirds of our own:the feathery) kind. We knew we couldn’t afd to buy both birds and a nice cage, so in his spare moments, Don made the cage himself. We set our cage in front of a shaded window. Then we waited until the crumpled envelope marked“lovebirds”was full of bills and spare change. At last the day came when we were able to walk down to our local pet store to“adopt ”some additions to our little family. We‘d had our hearts set on parakeets3). But the minute we heard the canaries) singing, we changed our minds. Selecting a lively yellow male and a sweet white female, we named the youngsters Sunshine and Snowball. Because of our exhausting schedules, we didn’t get to spend too much time with our new friends, but we loved having them greet us each evening with bursts of song. And they seemed blissfully5) happy with each other. Time passed, and when our young lovebirds finally seemed mature enough to start a family of their own, we went ahead and prepared a nest area and lots of nesting material them. Sure enough, one day they began to find the idea very appealing. Snowball was a very exacting supervisor6) in designing and decorating their nest just so, while Sunshine, his face a glow with love, bent over backward to put everything just where she ordered. Then one day an egg appeared. How they sang.And a few weeks later when a tiny chick hatched, their happiness seemed to know no bounds. I don’ t know how it happened genetically, but that baby canary was bright orange. So right off we named him Punkinhead. The sunny days passed. How proud all of us were when our fledgling tottered out of the nest onto a real grown-up perch7).Then one day, Punkinhead suddenly plunged headlong from his perch to the bottom of the cage. The tiny orange bird just lay there. Both parents and I rushed to his rescue. But he was dead. Just like that. Whether he’d had a heart attack bee he fell or broke his neck in the fall I’ll never know. But Punkinhead was gone. Though both parents grieved, his little mother was inconsolable8). She refused to let either Sunshine or me get near that pitiful little body. Instead of the joyful melodies9) I usually heard from Snowball, now she gave only the most excruciating cries and moans). Her heart, joy and will seemed completely melted by her sorrow. Poor Sunshine didn’t know what to make of it. He kept trying to push Snowball away from her sad station, but she refused to budge. Instead, over and over she kept trying to revive her adored child. Finally Sunshine seemed to work out a plan. He convinced her to fly up and eat some seeds every so often, while he stood duty in her place. Then each time she left, he’d quietly place one piece of nesting straw over Punkinhead’s body. Just one. But in a few days, piece by piece, it was completely covered over. At first Snowball seemed disoriented when she looked around, but she didn’t try to uncover the chick. Instead, she flew up to her nor-mal perch and stayed there. Then I was able to quietly reach in and remove the little body, straw shroud and all. After that, Sunshine spent all his time consoling Snowball. Eventually she started making normal sounds, and then one day, her sorrow finally melted and she sang again. I don’t know if Snowball ever realized the quiet labor of love and healing Sunshine had done her. But they remained joyously devoted as long as they both lived. Love does that, you know. Especially to lovebirds. □by Bonnie Compton Hanson 71

  • 美晚报上饶玉山县额头除皱多少钱
  • 上饶双眼皮修复
  • 问医报上饶韩美整形医院激光祛太田痣多少钱
  • 上饶韩美整形美容医院治疗狐臭多少钱
  • 妙手分类上饶广丰区治疗腋臭多少钱妙手在线
  • 武夷山光子脱毛多少钱
  • 上饶市第二人民医院去除狐臭多少钱京东网广丰区妇幼保健人民中医院减肥手术多少钱
  • 华养生玉山县祛痣多少钱
  • 上饶做脂肪填充要多少钱
  • ask面诊上饶韩美整形玻尿酸多少钱
  • 德兴市去除黑眼圈多少钱
  • 铅山县人民医院做抽脂手术多少钱ask指南上饶婺源县鼻部除皱价格
  • 导医口碑上饶割双眼皮价格
  • 上饶德兴市黑脸娃娃多少钱
  • 广丰区丰额头多少钱88时讯信州区妇幼保健人民中医院激光去斑多少钱
  • ask咨询信州区妇幼保健人民中医院整形美容科
  • 飞度云常识武夷山玻尿酸多少钱一支健康晚报
  • 上饶铅山县隆胸医院哪家比较好
  • 快问共享上饶市人民医院激光除皱多少钱时空晚报
  • 上饶隆鼻医院
  • 上饶巨乳缩小哪家好
  • 上饶韩美医院激光去痣多少钱
  • 国际在线娱乐微信