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  • 2024年12月英語四級閱讀理解模擬:超導(dǎo)材料

    2024年12月英語四級考試在即,同學(xué)們要認(rèn)真?zhèn)淇寂丁=裉鞛榇蠹規(guī)淼氖?024年12月英語四級閱讀理解模擬:超導(dǎo)材料,一起來看看吧。 2024年12月英語四級閱讀理解模擬:超導(dǎo)材料 The stone age, The Iron Age. Entire epochs havebeen named for materials. So what to call thedecades ahead? The choice will be tough. Welcometo the age of superstuff. Material science -- once theleast sexy technology – is bursting with new, practical discoveries led by superconducting ceramicsthat may revolutionize electronics. Butsuperconductors are just part of the picture: from house and cars to cook pots and artificialteeth, the world will someday be made of different stuff. Exotic plastics, glass and ceramics willshape the future just as surely as have genetic engineering and computer science. The key to the new materials is researchers’ increasing ability to manipulate substances atthe molecular level. Ceramics, for example, have long been limited by their brittleness. Butby minimizing the microscopic imperfections that cause it, scientists are making far strongerceramics that still retain such qualities as hardness and heat resistance. Ford Motor Co. nowuses ceramic tools to cut steel. A firm called Kyocera has created a line of ceramic scissorsand knives that stay sharp for years and never rust or corrode. A similar transformation has overtaken plastics. High-strength polymers now formbridges, ice-skating rinks and helicopter rotors. And one new plastic that generates electricitywhen vibrated or pushed is used in electric guitars, touch sensors for robot hands and karatejackets that automatically record each punch and chop. Even plastic litter, which oncethreatened to permanently blot the landscape, has proved amenable to molecular tinkering. Several manufacturers now make biodegradable forms; some plastic six-pack rings forexample, gradually decompose when exposed to sunlight. Researchers are developing ways tomake plastics as recyclable as metal or glass. Besides, composites – plastic reinforced withfibers of graphite or other compounds – made the round-the-world flight of the voyagerpossible and have even been proved in combat: a helmet saved an infantryman’s life bydeflecting two bullets in the Grenada invasion. Some advanced materials are old standard with a new twist. The newest fiberoptic cablethat carry telephone calls cross-country are made of glass so transparent that a piece of 100 miles thick is clearer than a standard window pane. But new materials have no impact until they are made into products. And that transitioncould prove difficult, for switching requires lengthy research and investment. It can be said afirmer handle on how to move to commercialization will determine the success or failure of acountry in the near future. 1. How many new materials are mentioned in this passage? [A] Two [B] Three [C] Four [D] Five 2. Why does the author mention genetic engineering and computer science? [A] To compare them with the new materials. [B] To show the significance of the new materials on the future world. [C] To compare the new materials to them. [D] To explain his view point. 3. Why is transition difficult? [A] Because transition requires money and time. [B] Because many manufacturers are unwilling to change their equipment. [C] Because research on new materials is very difficult. [D]Because it takes 10 years. 4. Where lies success of a country in the New Age of superstuff? [A] It lies in research. [B] It lies in investment. [C] It lies in innovation. [D] It lies in application. Vocabulary 1. superstuff 超級材料 2. superconducting ceramic 超導(dǎo)陶瓷 3. exotic 神奇的 4. shape 塑造,成型 5. brittleness 脆性 6. polymer 聚合體 7. karate jacket 空手道外衣 8. touch sensor 觸及傳感器 9. each punch and chop 每一個擊、打 10. blot 玷污,損害風(fēng)景的東西 11. tinker 修補(bǔ),調(diào)整 12. amendable 服從于,遵循的 13. biodegradable 能生物遞減分解的 14. six-pack rings 放六個罐子的環(huán)狀物 15. decompose 分解 16. recyclable 可

    2024-11-30

    英語四級閱讀

  • 經(jīng)濟(jì)學(xué)術(shù)語:Population size

    Population size Population size的意思是總?cè)丝跀?shù)。 它不分性別、不分年齡、不分民族,只要是有獨(dú)立的生命活動就包含在人口總數(shù)之內(nèi)。人口總數(shù)是人口統(tǒng)計(jì)中最基本的指標(biāo)。標(biāo)準(zhǔn)人口總數(shù),對于了解國情國力,制訂人口計(jì)劃和經(jīng)濟(jì)、社會發(fā)展計(jì)劃,進(jìn)行人口科學(xué)研究,都有十分重要的意義。 我們來看2個例句: This implies an "unusually small population size for a species spread across the entire Old World, " the authors write. 作者寫到,“這說明個非常小的種群遍布

  • 四級閱讀如何輕松拿到180+?這幾點(diǎn)很關(guān)鍵……

    本書已經(jīng)做過兩遍,任何真題可以把這個答案告訴你,但是就是過不了。因?yàn)樗噶?試圖只想通過做題提升能力"的大忌。做題在于能力的檢測,想要了解自己的水平有多高,光檢測是沒有意義的,所以你必須總結(jié)—— 第一,要總結(jié)剛才提到的錯誤。 第二,要總結(jié)的是單詞。如果時間有限,一定要把閱讀真題上的單詞記一下。 第三,要總結(jié)的是難句。如果一個句子很難,你看了兩遍沒有看懂,說明這達(dá)到了能力的局限。你需要分析這個句子的結(jié)構(gòu),做個解剖和細(xì)分,不斷地理解、背誦,最好是模仿。 聲明: 內(nèi)容整理自網(wǎng)絡(luò),版權(quán)歸原作者或平臺所有。侵刪。 ?屠皓民領(lǐng)銜 四六級通關(guān)神器? ??????基礎(chǔ)班·沖刺押題班·白金班 直播錄播相結(jié)合,基礎(chǔ)強(qiáng)化沖刺全包括 ??不同水平,靈活選擇班型 $課程限時優(yōu)惠6折$ 【基礎(chǔ)班】:380-424分,語法詞匯基礎(chǔ)薄弱 【沖刺班】:有定基礎(chǔ),四六級做題技巧欠缺,刷分必選 【白金班】:380分以下,屢考不過 點(diǎn)擊

  • 2024年12月英語六級翻譯預(yù)測:茶館

    注滿茶杯,為顧客沖泡最優(yōu)質(zhì)的茶葉。 參考譯文: Traditional teahouse culture still exists in many parts of China. Especially in Chengdu, the capital of Sichuan Province, teahouses are everywhere: on the sides of roads, under bridges, in parks and even inside temples and other historical sites. Relaxing

  • 滬江雙十二年終狂歡——贏學(xué)幣 抽免單,成長奇跡就在此刻!

    十二,滬江網(wǎng)校為你帶來一場別開生面的年終狂歡,精心準(zhǔn)備了免單攻略與贏獎競猜兩重福利。 破解成長焦慮,改變始于足下,一起享受學(xué)習(xí)的快樂,體驗(yàn)成長的喜悅。 成長奇跡一:全額獎金 學(xué)完全返 免單攻略大放送,讓你直呼好過癮!滬江網(wǎng)校特別推起跑線,這一出了“全額獎學(xué)金班”,活動期間選擇喜歡的課程報(bào)名學(xué)習(xí),并完成規(guī)定的學(xué)習(xí)任務(wù),就可以享受全額返還學(xué)幣! 學(xué)完全返,又可以免費(fèi)學(xué)習(xí)等額進(jìn)階課程,一路學(xué)到最高級!年終最后一波抓住成長逆襲的機(jī)會,千萬不要錯過哦! 掃碼直達(dá)活動專場~ 成長奇跡二:免單攻略 狂撒學(xué)幣 年終贏獎進(jìn)行時,錯過絕對超后悔!滬江網(wǎng)校還為友友們準(zhǔn)備了“天天領(lǐng)學(xué)幣,免單抽獎”狂歡活動。 活動期間,友友們可以通過每日瀏覽主會場、購買課程等方式,輕松獲得學(xué)幣獎勵。已購買課程的小伙伴,就可以去抽取免單啦!祝好運(yùn)! 掃碼直達(dá)活動專場~ 滬江網(wǎng)校——陪你同成長 我們都知道焦慮并非洪水猛獸,適當(dāng)

  • BEC中級準(zhǔn)考證開始打印啦??!這個你定得知道

    入官網(wǎng)) 第二步:下載準(zhǔn)考證,在首頁找到“下載準(zhǔn)考證”的選項(xiàng),點(diǎn)擊進(jìn)入。 第三步:打印準(zhǔn)考證,下載完成后,使用打印機(jī)將準(zhǔn)考證打印出來。 考試的具體時間、口語考試時間以及考試地點(diǎn)都將在準(zhǔn)考證上顯示,請大家務(wù)必仔細(xì)核對。 二、準(zhǔn)考證打印不了怎么辦? 答:嘗試更換瀏覽器,建議是ie10或firefox最新版;如果還無法下載再與考點(diǎn)聯(lián)系。 三、要不要貼照片 答:可以貼也可以不貼,沒有硬性要求。 四、準(zhǔn)考證要打印黑白還是彩色的? 答:準(zhǔn)考證不需要彩打。 五、準(zhǔn)考證上沒有口試時間? 答:如果準(zhǔn)考證上沒有顯示口語考試的準(zhǔn)確時間的話,會在現(xiàn)場直接安排。有疑慮可給對應(yīng)考點(diǎn)打電話確認(rèn)。 六、需要帶什么證件? 答:準(zhǔn)考證和身份證,兩者缺一不可。特別提醒,學(xué)生證不能替代身份證使用。 七、需要準(zhǔn)備什么文具 答:考試所需的文具包括2B鉛筆、橡皮和黑色簽字筆。 黑色簽字筆用于寫作部分,而2B鉛筆用于填涂答題卡??键c(diǎn)會提供備用的簽字筆和鉛筆。 如果有不確認(rèn)的,大家可以參考官網(wǎng)上的“BEC考生須知”準(zhǔn)備相關(guān)文具,這些信息通常也會在準(zhǔn)考證上有所說明。 八、成績什么時候公布? BEC考試成績一般會在考后4-6周公布,BEC證書一般考后2-3個月領(lǐng)取,可通過登錄BEC官方網(wǎng)站查詢,具體方法后續(xù)小編也會幫大家整理好相關(guān)內(nèi)容的!

  • 2024年12月英語六級聽力200+的10個做題技巧

    文中的“it comes from a special type of pig”完全吻合,因此選C。 2. 同義替換 在四六級聽力中特別是六級聽力,同義替換是命題專家最愛用的考查方式,視聽一致不管用?的時候就用這個技巧。百試不爽! 同義替換,顧名思義,聽力原文中的關(guān)鍵詞的意思和正確答案的選項(xiàng)

  • 2024年12月英語四級作文預(yù)測:垃圾分類的意義

    2024年12月英語四級考試將在12月14日早上舉行,同學(xué)們在考前要多練多背哦。今天學(xué)習(xí)的內(nèi)容是2024年12月英語四級作文預(yù)測:垃圾分類的意義,一起來看看吧。 2024年12月英語四級作文預(yù)測:垃圾分類的意義 The Significance of Garbage classification In the face of increasing garbage production and environmental deterioration, there is an urgent need for waste sorting. And the reasons why we need to classify garbage come as follow. To begin with, as is often said, garbage is a resource used in the wrong place. As long as the garbage is properly classified and recycled, it will not only reduce the amount of garbage,beautify the environment, ?but also reduce unexpected waste, maximize the use of resources. What’s more, reasonable garbage classification will reduce environmental pollution, because through garbage classification, harmful substances can be selected out, so as to prevent harmful substances from contaminating the soil and endangering the survival and growth of plants and animals. So we should pay attention to garbage classification, protecting the environment on which we live. 面對日益增多的垃圾和惡化的環(huán)境,垃圾分類的需求迫在眉睫。我們需要垃圾分類的原因如下。? 首先,正如人們常說的,垃圾是一種被用在錯誤的地方的資源。只要對垃圾進(jìn)行適當(dāng)?shù)姆诸惡突厥?,不僅可以減少垃圾的數(shù)量,美化環(huán)境,還可以減少意外的浪費(fèi),最大限度地利用資源。而且合理的垃圾分類可以減少對環(huán)境的污染,因?yàn)橥ㄟ^垃圾分類可以篩選出有害物質(zhì),從而防止有害物質(zhì)污染土壤,危及動植物的生存和生長。? 所以我們應(yīng)該注意垃圾分類,保護(hù)我們賴以生存的環(huán)境。

  • 經(jīng)濟(jì)學(xué)術(shù)語:Population growth rate

    Population growth rate 作為人口大國,我國很重視Population growth rate(人口增長率)。 它是反映人口發(fā)展速度和制定人口計(jì)劃的重要指標(biāo),也是計(jì)劃生育統(tǒng)計(jì)中的個重要指標(biāo)。人口的力量正在把世界分成兩部分:人口增長緩慢的地區(qū),生活條件正在得到改善;人口增長迅速的地區(qū),生活條件正在惡化。 我們來看2個例句: Obviously, Asia is a continent where the population growth rate was the highest in the world in the 20th century, which

  • 2024年12月英語六級翻譯預(yù)測:5G

    2024年12月英語六級考試在即,大家準(zhǔn)備的如何?今天@滬江英語四六級微信公眾號為大家?guī)?024年12月英語六級翻譯預(yù)測:5G,希望對你有所幫助。 2024年12月英語六級翻譯預(yù)測:5G 5G指的是第五代無線技術(shù),可實(shí)現(xiàn)更高的速度、更低的成本和更強(qiáng)大的連接功能。中國的三大電信運(yùn)營商似乎正準(zhǔn)備迎接5G競賽,因?yàn)?G測試的頻段(frequency band)已經(jīng)分配?;谶@一技術(shù),物聯(lián)網(wǎng)、增強(qiáng)現(xiàn)實(shí)(augmented reality)和虛擬現(xiàn)實(shí)應(yīng)用、智能社區(qū)、無人駕駛汽車等,將充分發(fā)揮其潛力,對人們的生活產(chǎn)生巨大影響。專家認(rèn)為,建設(shè)5G基站的成本至少是4G基站的1.5倍,這將給電信運(yùn)營商帶來