英语中的hat文化

汉语中,帽子常被用来象征加给某人的罪名或坏名义。高帽子,象征对人的吹捧奉承。如"有人给他戴高帽子"。英语中,也有不少习惯用语是用"帽子"来作隐喻的。这些习语形象生动,蕴涵着英美民族丰富而深厚的文化风情。 1.at the drop of a hat该习语系美国常用口语,始见于19世纪末,源于美国西部地区。人们常以drop of a hat(脱帽,摔帽)作为战斗开始的信号。旧时,在欧洲和美国决     

The importance of being honest

In the busy city of New York, such an astonishing thing happened. On a Friday night, a poor young artist stood at the gate of the subway station, playing his violin. Though the music was great, people were quickly going home for the weekend. In this case, many of them slowed down their paces and put some money into the hat of the young man. The next day, the young artist came to the gate of the subway station, and put his hat on the ground gracefully. Different than the day before, he took out a     

Stamp

A stam p is just a piece of paper w ith a picture and som e w ords printed on one side. W hat m akes one of these bits of paper w orth any m oney at all? W hat m akes a ten-fen stam p w orth ten fen? W hen you buy a stam p, you also buy service from the p…     

A Funny Man

Mr Green has a holiday,so he says,"I'm going to the mountainsby train."He puts on his best clothes,takes a small bag,goes to thestation and gets into the train.He has a beautiful hat,and he often putshis head out of the window during the trip and looks at the mountains.     

美国民间迷信(一)

帽子放床上 很久以前，人们认为魔鬼住在头发里。把帽子放在床上 会带来厄运或引起家庭争吵。 s附i匆a hot on a bod Ploc亩匆a奴”th under the PIllow 帽子放床上 Long ago PeoPIe believed that evil sPirits lived in the hair.Plaeing a hat on a bed would bring bad lue     

PRESSURE DROP IN THE VERTICAL PNEUMATIC PIPE FOR POWDER CONVEYING

Based on the former research work of the authors,the resistance of differentsolid particle suspension flow in a vertical pipe is analysed,and investigatedexperimentally.The applicable formulas of pressure drop are presented.Two types of par-ticles,talcum powder and glass beads,are convcyed in the test which has been carried outat various air vclocities of 10 to 28 m/s and at the ratio of solids-air mass flow rateranged from 0 to 2.The experimental results show a good agreement with the calculatedones.     

Effect of carbon, silicon, and manganese content on mean flow stress at elevated temperature

Ten studied steels including different carbon content, silicon content, and manganese content were deformed in compression over a temperature range of 600 C to 1 000 C at the strain rate of 1 s1. The curves of the mean flow stress-deformation temperature were drawn up. The mean flow stresses of higher carbon content steels decreased continuously as the applied deformation temperature increased in the whole temperature range, while the mean flow stress of lowest carbon steel displayed an abrupt drop near the two phases region. The reason for the abrupt drop phenomena was explained as the result of phase transformation. The mean flow stresses of steels with high silicon content and low manganese content also have this phenomena.     

Examining Samoan language development in Samoan bilingual students＇ understanding of texts in English

This paper examines language development of Samoan students in bilingual contexts in Aotearoa, New Zealand. In the absence of valid and standardized assessments tools in Samoan, one was designed to test reading comprehension and oral language development for Samoan students using common narratives as a base. For reading comprehension, the tool used a listening comprehension format to avoid possible decoding limitations and provided a gradient of difficulty with a surprising drop in both oral and reading comprehension at year 7. This drop was attributed to a change in competencies of some students entering the bilingual classroom at year 7. For example, the mixed levels of both L 1 （Samoan） oral and L1 （Samoan） reading comprehension within and across years of schooling likely reflects the varied provision in the Samoan bilingual classes and the variations across cohorts in different degrees of bilingualism. We argue that this might be due to the make up of the two schools of which one was an Intermediate school of years 7 and 8 students and, the other was a full primary school with students from years 4 to 8. The patterns suggest two general instructional needs in Samoan bilingual classrooms. One is the need to develop metacognitive components and the need for deliberate and explicit instruction to build awareness of strategies and effectiveness. The other is the ubiquitous need identified in reading comprehension instruction generally to develop vocabulary both through oral and written forms. There was a highly significant relationship between L 1 oral at L1 reading comprehension levels reflecting a general relationship found in other studies of monolingual in L2 （English） contexts.     

How Does He Know?

An employer was very anxious to find the most intelligent of the three men who had applied for a job. So he told them: "Here are five conical hats. Three are white and two are black. I shall ask you to stand in 3 corners of the room facing the wall, and I shall place a hat on each of your heads. When you turn round, you will be able to see the other's hats but not your own. The first one to tell me the colour of his own hat will get the job." He then placed a white hat on each man's head. When the three men turned to face each other there was a long silence. Then, suddenly, one of the candidates (候选人) said, "Mine is white." How did he work out that he had a white hat on his headv     

更快、更平缓的太空旅行(英文)

This month' s income tax deadline might inspire fantasies of fleeing Earth. But the laws of physics, like the laws of the IRS, are irrevocable. Before you can set up a tax shelter on Mars, there's that little matter of achieving escape velocity. Getting off our planet requires a textbook speed of 6.96 miles per second. That number applies only if you want to wrench free from Earth's gravity in a one-shot effort, however. If you can wait, a slow, steady thrust can also do the job. Think of Earth as lying at the bottom of a pit. If you drop a rock into the pit, it will have a certain velocity when it hits bottom. One way to get out of the hole is to jump upward at the exact same speed-the escape velocity. Another way out is to climb gradually up the wall of the pit. So long as you generate enough force to keep working your way up the wall, you' II still get out. Heading upward at even one mile per hour, a rocket could work its way out of Earth' s gravitational field travel clear across the universe if its engine fired for a long enough time.     

短文一则(英文)

A blind boy sat on the steps of a building with a hat by his feet.He held up a sign:I am blind,please help. There were only a few coins in the hat.     

FUNNY STORIES

A Mr Jones had a few days’ holidays, so he decided to visit the mountains by train. During the trip he often put his head out of the window and looked at the mountains. Soon the wind blew his beautiful hat off. Mr Jones quickly took his old bag and threw that out of the window, too. The other people on the train laughed. They asked if his bag would     

A Workday of My Mother

M y mother serves in the arm y. She has a regular w ay of lifeon her w orkdays.She gets up at 6o’clock every w orkday.Then she runs at6:15am . After running, she has her breakfast, she eats eggs,bread and apples.W hat a funny tim e to eat breakfast。She goesto w ork at 7o’clock, and she w orks for five hours, she servesin the arm y,because she likes an exciting job.At noon,she goeshom e and has lunch.W hat a short but happy tim e to have lunch。At 2:30pm ,m y m other still goes to w ork.A…     

Snowflake

Just a single flake of snow, and soon the world around is transformed. Just a tiny drop of rain, but from those drops the rivers flow, and seas stretch from shore to shore. Just one tiny step and a journey is begun. Just one hand held out in friendly greeting, and a chain of warmth is started. Just a single voice raised in protest at injustice can be joined by many more and achieve results to change the face of history... So next time you are tempted to say, "Oh, my little efforts…     

Who Is the Thief

A woman was waiting at an airport one night,with several long hours before her flight.She hunted for a book in the airport shops,bought a bag of cookies and found a place to drop.She was engrossed in her book but happened to see that the man sitting beside her,as bold as could be, grabbed a cookie or two from the bag in between,which she tried to ignore     

百花园

Look大“看”台1 在初中范围内,有关look的词组很多,现将使用频繁,经常在中考试题中有所体现的用法加以总结归纳如下:1. look at看Please look at the blackboard. 请看黑板。2. look after照看、照顾Will you please look after my baby when I am out ? 当我出去的时候你能照看一下我的婴儿吗?3. look for寻找I am looking for the key to the door. 我正在寻找房门的钥匙。4. look like 看起来像Your cat looks like Lily's hat. 你的猫看起来像莉莉的帽子。5. look over检查身体He was badly hurt.Th…     

Experimental Investigation of Hydrodynamic Characteristic of a New Rotating Stream Tray

The hydrodynamic characteristic of a new rotating stream tray(NRST) was investigated. The tests were carried out using an air–water/oxygen experimental system in a column with a diameter of 500 mm. The hydrodynamic parameters studied were dry plate pressure drop, wet plate pressure drop, weeping, entrainment, and Murphree liquid efficiency. The results showed that the NRST has excellent performance in terms of high operational flexibility. The pressure drop, weeping rate, and entrainment rate remained low even under a high-capacity operation. Correlations of pressure drop, weeping, and entrainment for the NRST were obtained by regression analysis. The results can provide some important theoretical guidance for the development of this type of trays.     

Characteristic of drop coalescence resting on liquid-liquid interface

The trajectory model of dispersed phase drops and the model of basic flow for drop motion between two inclined parallel plates are derived with the optimized calculation. The analytical results of direct numerical simulation indicate that the basic flow plays an important role in the drop coalescence on liquid-liquid interface. In the stratified two-phase flow field, the smaller droplets are difficult to drain the thin continuous film between the approaching droplets and bulk interfaces and eventually immerse into the trickling film to yield coalescence. They almost attain the velocity of their local surroundings. Moreover, the basic flow exerts a dominant influence on the motion of smaller droplet. The smaller droplets are easily entrained by the basic flow. On the contrary, the larger drop presents advantageous characteristics of coalescence due to its high velocity. The range of 0.3 mm δR≤ 0.75 mm is the advantageous drop coalescence condition since the rapidly varied velocity and its first derivative theoretically cause the forces acting on a drop to become imbalanced. On the other hand, the thin layer of the continuous phase drained from the interval between the drops and trickling film should not be neglected in the calculation of shearing force since it is important for drop rotation. The drop rotation is an indispensable factor in coalescence.     

波形折流杆换热器的开发和工业化实验研究

The conventional heat exchanger with segmental baffles is prone to bring forth fluid-induced vibration of heat transfer tubes and increase the pressure drop of shell-side greatly at higher fluid flow velocity. In order to avoid the above defects, the ROD-baffle heat exchanger has been developed. However, its collocation of heat transfer tubes is conventionally in square, which leads to fewer heat transfer area per unit volume. Based on the ROD-baffle heat exchanger, a new type curve-ROD baffle has been developed, and an industrial investigation of the curve-ROD baffle heat exchanger with normal triangular collocation has been carried into execution. In this paper, two equations using the Reynolds number were acquired to predict the heat transfer coefficients of the shell-side and tubeside. The experimental results show that the shell-side heat transfer and pressure drop characteristics of the curve-ROD baffle heat exchanger are superior to those of the segmental baffle one.     

Coalescence Behaviors of Drop Swarms on Liquid-Liquid Interface

The trajectory model of dispersed phase drops and distribution model of drop diameters were derived.By numerical simulation,the analytical results indicate that a large number of dispersed phase drops accumulate on the upper plate in different directions and form a hydrodynamic area with the stream-wise location in the range of 0—0.4m,where the flow of trickling film obtains kinetic drive from flowing field.The flowing field of trickling film exhibits an unstable state if the stream-wise location is less than 0.02m,and a stable state otherwise.Moreover,different velocity vectors of drops in the x-y plane result in different interactions between the trickling film and drops.For the non-uniform distribution of drop diameters,there is a stronger interaction between the trickling film and drop if the stream-wise location is less than 0.02m,because the amplitudes of velocity vectors are higher than those in the range of 0.02—1.0m.The result reveals a complexity and diversity of stratified two-phase flowing field.On the other hand,both the basic flowing field and distributions of drop diameters have a great influence on the distributions of comparable kinetic energy of drops.The complicated motions of larger drops are helpful to coalescence because they will consume much more kinetic energy on the trickling film than those of smaller drops.The change of comparable kinetic energy of smaller drops is continuous and steady.The smaller drops are easily entrained by the liquid-liquid flowing field.