1.英語科學(xué)小知識(shí)
1. bat an eye (show surprise, fear, or interest) 眨一下眼睛(表示驚訝、恐懼等)該成語通常用于否定句中,表示不露聲色。
例:Tom told his story without batting an eye, although not a world of it was true.雖然沒有一句話是真的,湯姆編造故事卻面不改色。2. be all fingers and thumbs做事笨手笨腳例:He could not undo the string of the parcel ---- she was all fingers and thumbs.他怎么也解不開包袱上的繩子 ---- 真是笨手笨腳。
3. be born with a silver spoon in one's mouth (born with inherited privilege or wealth) 門第高貴;出生富豪[注] 銀具是富裕人家身份的象征之一,生在富貴人家的孩子多用銀匙 (silver spoon) 喂食。 例:When does she know about hardship ---- she was born with a silver spoon in her mouth.她根本就不知道什么叫艱難 ---- 他出生在富貴人家。
4. be in sth. up to one's neck (be very much and very seriously involved in) 深陷于。
中例:She said she knew nothing about the robbery, but I'm sure she's in it up to her neck.她說她對(duì)這起搶劫案一無所知,不過我敢肯定她深深卷入其中。5. bite the hand that feeds one (be very ungrateful) 忘恩負(fù)義;以怨報(bào)德例:She felt that her protégé had bitten the hand that fed him by making unkind remarks about her in public.她覺得她的被保護(hù)人在公開場合講有損她的話是忘恩負(fù)義。
6. bite off sb's nose (scold sb. severely; disagree with sb. in a bad manner) 氣勢(shì)洶洶地回答某人;聲色俱厲地訓(xùn)斥某人[注] 也作snap off sb's head。該成語最早出現(xiàn)于16世紀(jì)。
到了18世紀(jì),有人用動(dòng)詞 snap 替換該成語中的 bite 一詞。例:She bites off his nose on the faintest provocation.不管有事無事,她動(dòng)不動(dòng)就聲色俱厲地訓(xùn)斥他。
7. break the back of sth. (complete the heaviest or most difficult part of sth. hurt the most import part) 門第高貴;出生富豪[注] 銀具是富裕人家身份的象征之一,生在富貴人家的孩子多用銀匙 (silver spoon) 喂食。同義語有be born in (或to) the pruple; be radled in purple.例:Now that you've broken the back of the job, have a rest.你既然已經(jīng)完成了這項(xiàng)工作的主要部分,那就休息一下吧。
8. bury one's head in the sand (deliberately ignore sth. that is obvious but unpleasant) 逃避現(xiàn)實(shí);拒絕承認(rèn)現(xiàn)實(shí)[注] 鴕鳥遇到危險(xiǎn)時(shí),總是把頭埋在沙里,自己看不見敵人就認(rèn)為敵人也看不見自己,由此產(chǎn)生這一成語。例:He had suspected for some months that his son was taking drugs, but he had buried his head in the sand and refused to admit it, even to himself.幾個(gè)月來,他一直懷疑自己的兒子在吸毒,但他卻采取鴕鳥政策,拒絕承認(rèn)現(xiàn)實(shí)。
9. carry a chip on one's shoulder (have rather an aggressive manner, as if always expecting to be insulted, ill-treated) 以挑釁的態(tài)度出現(xiàn);像要跟人家打架似的[注] 19世紀(jì)中葉美國中西部的居民尋釁打架時(shí),常把一塊碎木片(chip)放在肩膀上,誰要與他打架就得先擊落這塊木片。例:He is very difficult to deal with ---- he's always carried a chip on his shoulder about his lack of education.他這個(gè)人很難對(duì)付----由于沒能受到良好的教育,他整天都像要跟人家打架似的。
10. chance one's arm (do sth. risky; take a risk) 冒險(xiǎn)一試;碰碰運(yùn)氣[注] 該成語原出自拳擊運(yùn)動(dòng),后被裁縫吸收為行話;從1890年起,又被士兵們用來指“冒降級(jí)的險(xiǎn)”例:The manager decided to chance his arms and try to write a book on economy.這個(gè)經(jīng)理決定碰碰運(yùn)氣,試著寫一本關(guān)于經(jīng)濟(jì)的書。
2.科學(xué)知識(shí)英語作文200字帶翻譯
As we all know that the popularizing rate of the scientific knowledge for Americas isn't high,so is the chinese.In fact,the popularizing rate of a country is very important for it is related with the development and progress of the country.
Duo to China once was a feudal state owning more than two thousand years' history,some superstition still exists in many people's mind.In order to raise the popularizing rate of scientific knowledge,we should follow the prescribed order.
Firstly,we can open up some courses about the scientific knowledge in the kingdergatens,primary schools and middle school.Besides,some scientific knowledge can be introduced to the young through the form of cartoons to raise their interests.
Secondly,some activities with award about the scientific knowledge can be held in cities and countryside to raise the scientific knowledge of the middle and old aged people.
Therefore,let's try our best to learn more about the scientific knowledge to make a difference both for ourselves and our motherland.
希望能幫上你??!
3.英語科普小知識(shí),急
要想學(xué)好英語不止才有這幾個(gè)方面,還要掌握一些重要的知識(shí)。
例如:英語中的“八大時(shí)態(tài)”?!鞍舜髸r(shí)態(tài)”分別有:一般將來時(shí),一般現(xiàn)在時(shí),一般過去時(shí),現(xiàn)在進(jìn)行時(shí),現(xiàn)在完成時(shí),過去將來時(shí),過去完成時(shí)和過去進(jìn)行時(shí)。
當(dāng)然英語的“八大時(shí)態(tài)”也很重要,它也是學(xué)好英語的最基本。以下是“八大時(shí)態(tài)”的簡介。
一、一般時(shí)態(tài) 1、一般現(xiàn)在時(shí) (1)一般現(xiàn)在時(shí)表示沒有時(shí)限的持久存在的動(dòng)作或狀態(tài)或現(xiàn)階段反復(fù)發(fā)生的動(dòng)作或狀態(tài),常和副詞 usually,often,always sometimes, regularly,near,occasionally,every year, every week 等連用。 (2)在由after,until,before,once,when,even if,in case,as long as,as soon as,the moment 以及 if,unless 等引導(dǎo)的時(shí)間狀語從句或條件狀語從句中,通常用一般現(xiàn)在時(shí)代替將來時(shí)。
(3)某些表示起始的動(dòng)詞,可用一般現(xiàn)在時(shí)表示按規(guī)定、計(jì)劃或安排要發(fā)生的動(dòng)作,這類動(dòng)詞有:be,go,come,start,depart,arrive,begin,leave 等。(4)在由why,what,where,whoever,who,that,as 等引導(dǎo)的從句中,也常用一般現(xiàn)在時(shí)代替將來時(shí)2.一般過去時(shí) (1)表示過去某一特定時(shí)間所發(fā)生的、可完成的動(dòng)作或狀態(tài),常與表示確切過去時(shí)間的詞、短語或從句連用。
(2)表示過去習(xí)慣性動(dòng)作。(注意與be used to doing短語的區(qū)別) 3.一般將來時(shí) 1)表示將來打算進(jìn)行或期待發(fā)生的動(dòng)作或狀態(tài)。
2)幾種替代形式: 1)be going to +v在口語中廣泛使用,表示準(zhǔn)備做或?qū)l(fā)生的事情2)be to +v表示計(jì)劃安排要做的事,具有“必要”的強(qiáng)制性意義。3)be about to +v表示即將發(fā)生的事情。
4)be due to +v表示預(yù)先確定了的事, 必定發(fā)生的事。5)be on the point/verge of +v – ing 強(qiáng)調(diào)即將發(fā)生的某種事態(tài)。
. 二、進(jìn)行時(shí)態(tài) 1.現(xiàn)在進(jìn)行時(shí) (1)表示現(xiàn)在正在進(jìn)行的動(dòng)作,常與now,right now,at the mother,for the time being,for the present等連用。(2)表示現(xiàn)階段經(jīng)常發(fā)生的動(dòng)作, 常與always,continually,forever,constantly等連用。
(3)表示根據(jù)計(jì)劃或安排在最近要進(jìn)行的事情。具有這種語法功能的動(dòng)詞僅限于過渡性動(dòng)詞。
即表示從一個(gè)狀態(tài)或位置轉(zhuǎn)移到另一個(gè)狀態(tài)或位置上去的動(dòng)詞。常用的有:go,come,leave,start,arrive,return等。
(4)有些動(dòng)詞不能用進(jìn)行時(shí),這是一類表示“感覺,感情,存在,從屬”等的動(dòng)詞。如:see,hear,smell,taste,feel, notice,look,appear,(表示感覺的詞);hate,love,fear,like,want,wish,prefer,refuse, forgive(表示感情的動(dòng)詞);be,exist,remain,stay,obtain(表示存在狀態(tài)的動(dòng)詞);have,possess, own,contain,belong,consist of,form(表示占有與從屬的動(dòng)詞);understand,know,believe,think,doubt,forget,remember (表示思考理解的動(dòng)詞)。
但是如果它們?cè)~義改變,便也可用進(jìn)行時(shí)態(tài)2. 過去進(jìn)行時(shí) 過去進(jìn)行時(shí)表示一個(gè)過去的動(dòng)作發(fā)生時(shí)或發(fā)生后,另一個(gè)過去的動(dòng)作正在進(jìn)行,或表示過去反復(fù)的習(xí)慣,常與always,continually,constantly等動(dòng)詞連用。3. 將來進(jìn)行時(shí) 將來進(jìn)行時(shí)主要表示將來某一時(shí)刻正在進(jìn)行的動(dòng)作,或表示要在將來某一時(shí)刻開始,并繼續(xù)下去的動(dòng)作。
常用來表示禮貌的詢問、請(qǐng)求等4. 完成進(jìn)行時(shí) (現(xiàn)在、過去、將來)完成進(jìn)行時(shí)是(現(xiàn)在、過去、將來)完成時(shí)的強(qiáng)調(diào)形式,將放在完成時(shí)態(tài)部分講述。 三、完成時(shí)態(tài) 完成時(shí)態(tài)通常表示已完成或從事的動(dòng)作。
它可分為: 1. 現(xiàn)在完成時(shí) (1)現(xiàn)在完成時(shí)用來表示對(duì)目前狀況仍有影響的,剛剛完成的動(dòng)作(常與yet,already,just連用),或者過去某一時(shí)刻發(fā)生的,持續(xù)到現(xiàn)在的情況(常與for,since連用)。(2)常與現(xiàn)在完成時(shí)連用的時(shí)間狀語有:since, for, during, over等引導(dǎo)出的短語;副詞already, yet, just, ever, now, before, often, lately, recently等;狀語詞組this week (morning, month, year), so far, up to now, many times, up to the present等 (3)完成時(shí)態(tài)可用在下列結(jié)構(gòu)中:This (That, It) is (was) the first (second…) time +定語從句;This (That, It) is (was) the only (last) + n +定語從句;This (That, It) is (was) +形容詞最高級(jí)+ n +定語從句。
如果主句的謂語動(dòng)詞是一般現(xiàn)在時(shí),從句的謂語動(dòng)詞通常用現(xiàn)在完成時(shí);如果主句謂語動(dòng)詞是一般過去時(shí),從句謂語動(dòng)詞通常用過去完成時(shí)。2. 過去完成時(shí) (1)表示過去某時(shí)間前已經(jīng)發(fā)生的動(dòng)作或情況,這個(gè)過去的時(shí)間可以用by,before等介詞短語或一個(gè)時(shí)間狀語從句來表示;或者表示一個(gè)動(dòng)作在另一個(gè)過去動(dòng)作之前已經(jīng)完成。
(2)動(dòng)詞expect, hope, mean, intend, plan, suppose, wish, want, desire等用過去完成時(shí),表示過去的希望、預(yù)期、意圖或愿望等沒有實(shí)現(xiàn)。例如: I had meant to take a good holiday this year, but I wasn't able to get away. 另外兩種表示“過去想做而未做的事”的表達(dá)方式是: 1)was / were + to have done sth, (3)過去完成時(shí)常用于以下固定句型: 1)hardly, scarcely, barely + 過去完成時(shí)+ when + 過去時(shí)。
2)no sooner +過去完成時(shí)+ than +過去時(shí)。3)by (the end of ) +過去時(shí)間,主句中謂語動(dòng)詞用過去完成時(shí)。
3. 將來完成時(shí) 將來完成時(shí)表示在將來某一時(shí)刻將完成或在另一個(gè)未來的動(dòng)作發(fā)生之前已經(jīng)完成的動(dòng)作;也可以用來表示一種猜測。常與將來完成時(shí)連用的時(shí)間狀語有: by (the time / the end of 。
4.關(guān)于科學(xué)小知識(shí)和民間小故事的英語手抄報(bào)
別著急,我這有。
你看看行不行?不行你說,我再改。1 國君的寵妃In ancient times, to defend the country where a woman, looked beautiful, she is the defending monarch fconcubine avorite. According to the law to defend the country, no matter who, if not allowed by the monarch's carriage, it is necessary to impose the penalty off his legs. On one occasion, the Princess's mother who is seriously ill and was in the middle of the night came to tell her. She monarch on the carriage ride, the mother came to visit. Subsequently, the monarch did not punish her, but also a few praise her. "She is, however there are filial ah!" He said, "To her mother, and even run the risk of cut feet." 古時(shí)候,衛(wèi)國地方有一位女子,長得很漂亮,她是衛(wèi)國國君最寵愛的妃子。
根據(jù)衛(wèi)國的法律,無論是誰,如果沒有得到允許而乘坐國君的馬車,就要處以斬去雙腳的刑罰。有一次,這位王妃的母親患了重病,有人在半夜里趕來把消息告訴了她。
于是她就乘坐國君的馬車,趕去看望母親。事后,國君不僅沒有懲罰她,而且還夸獎(jiǎng)了她幾句。
“她是多么有孝心啊!”他說,“她為了母親,甚至冒了砍掉雙腳的危險(xiǎn)?!?后來又有一天,她正和國君在花園里嬉戲。
他拿了一只桃子吃,吃到一半覺得這只桃子特別甜,于是就把它讓給了國君吃。國君說:“她是多么愛我啊,愿意把最好的東西讓給我?!?/p>
但是,這位王妃的美貌漸漸消逝,國君就開始冷淡她了。 后來有一次,她無意中冒犯了國君,國君就說:“是不是有一次你未經(jīng)允許,就乘坐了我的馬車?是不是你把吃剩的桃子給我吃?” 2 螞蟻與屎殼郎 Summer and other animals have a leisurely life, only the ants run around in the fields to collect wheat and barley, to their winter food storage. Surprised todung beetle asked him why he was so diligent. Ant at the time said nothing. Winter came, a heavy rain washed cow dung,dung beetle hungry, where ant went begging, ants said to him: "Hey, buddy, if at the time when labor is not to criticize, but also to work, we would not have the hungry. " It is said that, despite the changing situation, the people can take precautions to avoid disaster. 夏,別的動(dòng)物都悠閑地生活,只有螞蟻在田里跑來跑去,搜集小麥和大麥,給自己貯存冬季吃的食物。
屎殼郎驚奇地問他為何這般勤勞。螞蟻當(dāng)時(shí)什么也沒說。
冬來了,大雨沖掉了牛糞,饑餓的屎殼郎,走到螞蟻那里乞食,螞蟻對(duì)他說:“喂,伙計(jì),如果當(dāng)時(shí)在勞動(dòng)時(shí),不是批評(píng),而是也去做工,現(xiàn)在就不會(huì)忍饑挨餓了?!?這是說,盡管風(fēng)云變化萬千,未雨綢繆的人都能避免災(zāi)難。
3 公雞和寶玉 A cock in the field for themselves and hens are in search of food. He found a piece of gem, it is Baoyu said: "If it were not, but found the owner, he would very much treasure to bring up to; but found it useless. Its all Baoyu world, we might as well be a wheat good stars. " It is said that he is the real thing to be precious一只公雞在田野里為自己和母雞們尋找食物。他發(fā)現(xiàn)了一塊寶玉,便對(duì)寶玉說:“若不是,而是的主人找到了,他會(huì)非常珍惜地把撿起來;但發(fā)現(xiàn)了卻毫無用處。
與其得到世界上一切寶玉,倒不如得到一顆麥子好。” 這是說自己需的東西才是真正珍貴的。
5.有沒有科技的知識(shí),要英文的
科技知識(shí)英文短文什么是清潔能源 Clean Energy Clean energies are forms of energy which do not pollute the air, the ground, or the sea.Clean energies include:Solar powerSolar power describes a number of methods of harnessing energy from the light of the Sun. It has been present in many traditional building methods for centuries, but has become of increasing interest in developed countries as the environmental costs and limited supply of other power sources such as fossil fuels are realized. It is already in widespread use where other supplies of power are absent such as in remote locations and in space.As the Earth orbits the Sun, it receives approximately 1,400 W / m2 of energy, as measured upon a surface kept normal (at a right angle) to the Sun (this number is referred to as the solar constant). Of the energy received, roughly 19% is absorbed by the atmosphere, while clouds on average reflect a further 35% of the total energy. The generally accepted standard is 1020 watts per square meter at sea level.After passing through the Earth's atmosphere, most of the sun's energy is in the form of visible and ultraviolet light. Plants use solar energy to create chemical energy through photosynthesis. We use this energy when we burn wood or fossil fuels or when we consume the plants as a source of food.Wind power Wind power is the kinetic energy of wind, or the extraction of this energy by wind turbines. This article deals mainly with the intricacies of large-scale deployment of wind turbines to generate electricity.Wave power Wave power refers to the capture of ocean surface wave energy to do useful work including electricity generation, desalination, and filling a reservoir with water. Wave power is a form of renewable energy. Though often co-mingled, wave power is physiologically distinct from the diurnal flux of tidal power and the steady gyre of ocean currents which are powered by the earth's rotation. Wave power generation is not a widely employed technology with only a few experimental sites in existence.Salinity gradient powerSalinity Gradient is a technology that takes advantage of the osmotic pressure differences between salt and fresh water.If we place a semipermeable membrane (like that in a reverse osmosis filter) between sealed bodies of salt water and fresh water, the fresh water will gradually travel through the filter by osmosis. By exploiting the pressure difference between these two bodies of water we can extract energy commensurate to the difference in pressure.Tidal power Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. Two types of tidal energy can be extracted: kinetic energy of currents due the tides and potential energy from the difference in height (or head) between high and low tides.Geothermal power Geothermal power is electricity generated by utilizing naturally occurring geological heat sources. It is a form of renewable energy.Some renewable energies are not clean energies - for example:Biofuels because they release NOX and particulates into the environment. Hydroelectric power because it destroys the river basin and has a negative effect on fish migration.。
6.關(guān)于科技的英語小短文
Six a day to improve immunity
Sleep a good sleep: sleep bad and lower the immune system. T cells in the body responsible for dealing with viruses and cancer, if it is not enough sleep, T cells will reduce the number of increased risk of illness. Do not have to睡足eight hours, as long as the morning wake up can feel the spirit of ease.
Do some sports: sports daily 30-45 minutes, will increase the number of immune cells, will be a corresponding increase in resistance. However, the movement is too intense or if more than one hours time, the body will produce hormones, suppress immune system activity.
Do a massage: massage to relax the body, reducing stress. Daily 45-minute massage, a month later, there will be significant improvement in immune function.
Make a return to daydreaming: 5 minutes a day of daydreaming while deep breathing while doing build castles in the air, so pleasant screen passes from the brain, immune cells can increase the number and activity.
To participate in an art activity: a marked increase in interferon can laugh, immune cells become more active. If the claims lack a sense of humor, you can see more comedy, funny cartoons. Music can increase the fight against infection and cancer of the antibody, regardless of what kind of music like to listen to when the health of all physiological responses to stimulation.
Exchange with a friend: a friend and more people, not only is not easy to colds, immune function than those who eccentric character well. Some studies have shown that good social relations will be conducive to fight against pressure, reducing stress, affects the immune cell function.
7.科學(xué)英文手抄報(bào)
Science drink milk little common sense 5Drinking milk is good for health, but many people drink milk in still exist a number of the error on the idea, this paper introduces some scientific drinking milk little common sense.The 1 morning fasting drink milk should not be. Because the human body when fasting gastrointestinal peristalsis quickly, nutrition in milk are often too late to be absorbed quickly into the e.. In addition, big milk method is insufficient, because this will reduce in oral and salivary mixed opportunity, is not conducive to digestion and absorption. Drink milk before the best to eat some cookies, cakes, or eat snacks while drinking milk.2 night milk more favorable. Scientific studies found that, in the human body calcium metabolism will have a special rule: the evening especially midnight when the content of serum calcium, there will be a" trough", forcing the body through regulating mechanism of transport a portion of bone calcium supplement. In this way, calcium in the blood is temporarily maintained, but have reduced skeletal calcium in. Milk of calcium rich, therefore before bedtime drink a cup of milk, can compensate for human body needs calcium at night.3 milk should not be adding sugar boiling. Milk is rich in amino acids, in the condition of high temperature in the milk of lysine with sugars occurring Maillard reaction, generate a new compounds - fructosyl amino acid. This substance can not only for human digestion and absorption, but affect human health, the best milk fresh drinking, such as cold a little heating can.4 do not like milk can drink yoghurt. The milk has a" repulsive " most people with lactose intolerance, these people can try drinking yoghurt. In the yogurt lactose content significantly reduced, but almost all retain the milk nutrition, wherein the lactic acid bacteria in the human body can survive and reproduction, conducive to nutrient absorption and utilization and improve immunity. Yogurt not containing antibiotics, easy to digest the absorption to fasting drinking.5 can not be heated drinking yoghurt. Drink sour milk feeds mainly on its nutrition and live bacteria, such as yogurt heating, the body can only drink nutrition to lose biological activity of lactic acid bacteria, so don't heating after drinking.How birds sleepDuring the day, the birds in the branches through singing, fly freely in the blue sky, in the evening, they and we like to rest, sleep, restores the physical strength, but their sleeping position but each are not identical!Beautiful mallard ducks and swans, under water in daytime, and the rest of the night when the predator, also cannot leave their most loves water. They have beautiful long neck bending forward, head buried in the wings, and then let themselves floating in the water, while dreaming, and swim, is leisurely.Crane, stork, heron, long-legged bird always stand on one leg and sleep, tired to change the other foot rest, is a model.Partridge rest like swarms around in a circle, and then as head outwards inward end. In this way, regardless of the enemy from which direction the hit, they can find and run away.Thrush, Braun and other sounds melodious birds, sleep usually bent legs, claws bent up firmly grasp branches, so don't worry they will fell down from the tree.While the" night owl" birds of prey in the daytime, you can always see it open one eye, one eye closed, standing in the thick branches, in fact it is sleeping. The sleeping posture is it right? Very offbeat ah, it is in order to monitor the surrounding environment against enemy attack!= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =The fish will drown meFish have gills, can breathe water, fishes have a swim bladder, can be in the water freely ups and downs. However, some people say the fish that lives in the water will drown, is this true?Although it sounds ridiculous, but it is true. Fish is fish swimming" buoy", which can be inflated and deflated to adjust the proportion of fish body. In this way, the fish in the swimming requires only minimal muscle activity, will be in the light of floating stability. However, when the fish sink to a certain depth ( i.e." depth" ), the outside huge pressure will cause it to wither section bladder volume. At this time, it 's buoyancy less than its own gravity, so he can't help to submerged to, also do not float, and was ultimately unable to breathe and drowned. 。
8.關(guān)于科學(xué)的英語小短文
You don't have to be French to enjoy a decent red wine, Charles Jousselin de Gruse used to tell his foreign guests whenever he entertained them in Paris. But you do have to be French to recognize one, he would add with a laugh. After a lifetime in t。