欧美人妖在线二区|青青在线视频人视频在线|色资源站欧美在线|精品久久久久久午夜福利

  1. <span id="zkbu1"></span>
      搜索結(jié)果 搜索相關(guān)課程
      • 2024年12月英語四級閱讀理解擬: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?。今天為大家?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)職場術(shù)語:PPP

        PPP 如果對不同國家的GDP進(jìn)行比較呢,一個方法就是PPP(Purchasing Power Parity,購買力平價)。 購買力平價是根據(jù)各國不同的價格水平計算出來的貨幣之間的等值系數(shù),如果一個巨無霸在美國的價格是4美元,而在國是3英鎊,那么美元與英鎊的購買力平價匯率就是3英鎊=4美元。 我們來看2個例句: PPP measures show where currencies should end up in the long run. 購買力平價方法顯示出貨幣從長遠(yuǎn)來看的價格。 For this reason, PPP is a more reliable comparison for the currencies of economies with similar levels of income. 由于這樣的原因,購買力平價方法在比較有相近收入水平的經(jīng)濟(jì)體時更為可靠。 20節(jié)BEC初級、中級、高級課程 學(xué)前測試、詞匯課、各級別專項課 還有考前沖刺 點(diǎn)擊立即免費(fèi)聽>> 你適合考哪個級別?BEC好不好學(xué) 2個月后考試是否能順利通過 一聽即知! 0元試學(xué)BEC初級中級高級課程 點(diǎn)擊立即免費(fèi)試學(xué)>> 點(diǎn)擊立即免費(fèi)試學(xué)>>> 祝大家順利拿證~

      • 英語四級萬能模板作文分享

        圍了。為滿足學(xué)生不同的興趣,這里有各種各樣的組織,比如足球俱樂部、吉他社團(tuán)、流行音樂社團(tuán),還有攝影社團(tuán)和志愿者社團(tuán)等等。 一些學(xué)生對大學(xué)社團(tuán)如此熱情的原因,主要在于他們能夠獲得從課堂上無法得到的'東西。此外,在社團(tuán)里,學(xué)生們會發(fā)展他們的興趣和天賦,并有機(jī)會與他人交流,這能夠幫助他們成長為全面發(fā)展的人。 考慮到以上所有因素,我認(rèn)為學(xué)生參加一些社團(tuán)是可取的。課外活動能幫助他們在辛苦地

      • 通過率曝光!四級成績公布時間定了!這次能過嗎?

        沒寫,只有你寫了,哪怕你翻譯的有很多錯誤,你也可以拿到滿分。 當(dāng)然,這種情況幾乎不可能出現(xiàn)。 把710分的滿分看成100分,各題型的分值分別如下: ?聽力部分為35分: 前15題每題1分,后10道題每題2分。 ?閱讀部分為35分: 選詞填空每題0.5分,總計5分; 信息匹配題每題1分,總計10分; 仔細(xì)閱讀每題2分,總計20分。 ?寫作部分15分。 ?翻譯部分15分。 用這個方法計算,根據(jù)往年的經(jīng)驗(yàn): ??四級一般能考到55分基本就穩(wěn)過四級425分; ??六級一般考到57分,通過六級425分的概率很大。 寫作和翻譯,無法估計具體的分?jǐn)?shù),但我們也可以算個大概。 自己先看看作文和翻譯的范文,然后對比自己的寫的: ◎如果整體沒什么錯誤,11-13分; ◎如果有個別小錯誤,8-10分; ◎如果錯誤很多,5-7分 ◎如果完全跑題,4分及以下。 大家可以按照上面這個方法,去對對答案,然后計算一下自己的成績哦~

      • 分析了近3年的四級作文題目 ,我們發(fā)現(xiàn)了這些套路

        有的放矢地復(fù)習(xí)作文。 下面是@滬江英語四六級微信公眾號為大家整理出的近三年四級考試寫作真題,一起來看看吧~ 搜集近三年四級考試的作文題目,我們可以看到,四級作文命題越來越看重實(shí)用性和時效性。 ? ? ? ? ?? 在2020年7月到2023年3月的四級考試中,共計24篇作文,其中應(yīng)用文高達(dá)9篇。 剩余13篇可以分為三個大類:現(xiàn)象類、說明類、議論類,以及23年加考的一篇書籍介紹和研討會記錄。 另外,所有作文的行文都緊緊圍繞著“校園(學(xué)生)、科技(衍生產(chǎn)品及所帶來的影響)”兩大主題。 注:本文所用真題范文均為滬江網(wǎng)校教研原創(chuàng),未經(jīng)授權(quán),禁止轉(zhuǎn)載。 01 應(yīng)用文 與其他文體不同,應(yīng)用文更加看重格式。不同的文體書寫的格式也不盡相同。在我們遇到應(yīng)用文時,只要對癥下藥,找對格式,然后根據(jù)題干要求,“有求必應(yīng)”,就能一舉拿下應(yīng)用文寫作! 以下是近三年四級寫作應(yīng)用文給類別的出現(xiàn)頻率: 建議書x3, 計劃書x2,報告x2,申請x1,邀請x1 @滬江英語四六級微信公眾號為大家總結(jié)了以上格式的范文模板,一起來積累吧~ 建議書 寫作分三步走: 自我介紹、說明來意——具體建議——希望對方采納、期盼回復(fù)。 行文舉例: Dear ____,(稱呼可齊頭可縮進(jìn)) I am... I am writing to...(主體內(nèi)容) Looking forward to your reply. / Hoping to hear from you soon. / Wishing you...(結(jié)束語) Yours sincerely(署名)____ 經(jīng)典表達(dá): 常用詞匯/短語 feasible 可行的 put forward some advice 提出建議

      • 2024年12月英語六級閱讀理解擬真題:地震

        2024年12月英語六級考試將在12月14日下午舉行,同學(xué)們準(zhǔn)備的如何?今天@滬江英語四六級微信公眾號為大家整理了2024年12月英語六級閱讀理解擬真題:地震,一起來看看吧。 2024年12月英語六級閱讀理解擬真題:地震 A) An earthquake is one of the most terrifying phenomena that nature can dish up. We generally think of the ground we stand on as “rock-solid” and completely stable. An earthquake can

      • 2024年12月英語四級閱讀理解擬:電視有害

        理了2024年12月英語四級閱讀理解模擬:電視有害,一起來看看吧。 2024年12月英語四級閱讀理解模擬:電視有害 Yes, but what did we use to do before there wastelevision? How often we hear statements like this! Television hasn't been with us all that long, but weare already beginning to forget what the world was like without it. Before we admitted the one-eyed monster into our homes, we never fond it difficult to occupy our spare time. We used toenjoy civilized pleasures. For instance, we used to have hobbies, we used to entertain ourfriends and be entertained by them, we used to go outside for our amusements to theatres, cinemas, restaurants and sporting events. We even used to read books and listen to music andbroadcast talks occasionally. All that belongs to the past. Now all our free time is regulatedby the goggle box. We rush home or gulp down our meals to be in time for this or thatprogramme. We have even given up sitting at table and having a leisurely evening meal, exchanging the news of the day. A sandwich and a glass of beer will do anything, providing itdoesn't interfere with the programme. The monster demands and obtains absolute silenceand attention. If any member of the family dares to open his mouth during a programme, he isquickly silenced. Whole generations are growing up addicted to the telly. Food is left uneaten, homeworkundone and sleep is lost. The telly is a universal pacifier. It is now standard practice formother to keep the children quiet by putting them in the living-room and turning on the set. Itdoesn't matter that the children will watch rubbishy commercials or spectacles of sadism andviolence so long as they are quiet. There is a limit to the amount of creative talent available in the world. Every day, television consumes vast quantities of creative work. That is why most of the programmes areso bad: it is impossible to keep pace with the demand and maintain high standards as well. When millions watch the same programmes, the whole world becomes a village, and society isreduced to the conditions which obtain in preliterate communities. We become utterlydependent on the two most primitive media of communication: pictures and the spokenword. Television encourages passive enjoyment. We become content with second-handexperiences. It is so easy to sit in our armchairs watching others working. Little by little, television cuts us off from the real world. We get so lazy, we choose to spend a fine day insemi-darkness, glued to our sets, rather than go out into the world itself. Television may be ssplendid medium of communication, but it prevents us from communicating with each other. We only become aware how totally irrelevant television is to real living when we spend aholiday by the sea or in the mountains, far away from civilization. In quiet, naturalsurroundings, we quickly discover how little we miss the hypnotic tyranny of King Telly. 1. What is the biggest harm of TV? [A] It deprives people of communication with the real world. [B] People become lazy. [C] People become dependent on second-hand experience. [D] TV consumes a large part of one's life. 2. In what way can people forget TV? [A] Far away from civilization. [B] To a mountain. [C] By the sea. [D] In quiet natural surroundings. 3. What does a mother usually do to keep her children quiet? [A] Let them watch the set. [B] Put them in the living room. [C] Let them watch the rubbish. [D] Let them alone. 4. What does the first sentence in the first paragraph mean? [A] We found it difficult to occupy our spare time. [B] We become addicted to TV. [C] What we used to do is different from now. [D] We used to enjoy civilized pleasures. Vocabulary 1. goggle 轉(zhuǎn)動眼珠,瞪眼 goggle box (英俚)電視機(jī) 2. gulp 狼吞虎咽 3. telly 電視機(jī) 4. pacifier 平息者,撫慰者。這里指平靜人,使人不吱聲的東西。 5. rubbishy 垃圾的,無價值的 6. sadism 施淫虐 7. glue 膠(水);粘牢 glue to the sets 和電視機(jī)粘在一起,指成了電視迷 8. hypnotic 催眠的 寫作方法與文章大意 這是一篇論說“電視有害”的文章。采用對比分析手法。先提出問題,對比過去和現(xiàn)在“過去在業(yè)余時間,我們享受文明的歡樂,有各種嗜好,招待朋友,訪友,外出娛樂,在家讀書聽音樂……現(xiàn)在一切受

        2024-11-27

        英語四級閱讀

      • 雅思詞匯記不???不妨試試這9種方法!

        :second是"秒",它來源于古代的六分法,分,秒,它是二次劃分,因此second也是"第二",進(jìn)一步引申,還可理解為"輔助",用這種方法特別適合那些一詞多義的詞。 5. 聯(lián)系記憶 記憶單詞最好不要孤立地記,盡可能地和有關(guān)的東西聯(lián)系來記。 (1) 聯(lián)系所學(xué)文章的大概意義,聯(lián)系上下文。 (2) 聯(lián)系短語和搭配。 6. 分類記憶 把單詞進(jìn)行分門別類,如:動物、植物等進(jìn)行分類記憶。 你可以找一本分類字典作為參考。 7. 構(gòu)詞記憶 利用構(gòu)詞法,通過分析詞根、前綴、后綴、派生和合成等記憶單詞。 8. 同義記憶 通過同義詞一起進(jìn)行單詞記憶,可確切理解詞義,這時不必注意它們的意義的區(qū)別。 9. 反義記憶 通過反義詞一起進(jìn)行單詞記憶,擴(kuò)大了詞義。 當(dāng)然還有很多記憶方法,比如自己制作單詞卡片隨時隨身進(jìn)行單詞記憶;也可以聽一首你喜歡的歌,然后完完整整地記下來并知道意思;還可以把看到過的商標(biāo)和廣告隨時隨地進(jìn)行單詞記憶。

      • 2024年12月英語四級閱讀理解擬:電子產(chǎn)品的可循環(huán)

        準(zhǔn)確,文中只提到plastics sandwich里層是100%的再生塑料。 4.[C] 推理判斷題。本題考査轉(zhuǎn)折處。最后一段倒數(shù)第2句中的Unfortunately一詞指出了用鎂作機(jī)殼的電視機(jī)很貴,從而暗示它們并不受消費(fèi)者歡迎,所以選項C正確。選項A屬原文明確表達(dá)的意思。本段第2句只指出鎂是一種理想的再生材料(ideal for recycling),因此選項B不對;全文并未比較塑料和鎂哪個更好,因此選項D不對。 5.[A] 主旨大意題。文中作者只是客觀地描述亊實(shí),吿知讀者日本的電子產(chǎn)品再循環(huán)使用的一些新變化和新技術(shù),抓住這個主旨就能選出正確答案A。作者并未發(fā)表任何個人觀點(diǎn),也未做出任何指示或預(yù)測。 以上就是關(guān)于“2024年12月英語四級閱讀理解模擬:電子產(chǎn)品的可循環(huán)”的全部內(nèi)容啦,祝同學(xué)們四級考試順利。

        2024-12-01

        英語四級閱讀

      • 四級作文最討巧的復(fù)習(xí)方法

        化為輸出的過程需要經(jīng)歷很長的時間,在這一過程中,堅持和復(fù)習(xí)就成了關(guān)鍵一步。 幾乎所有人都知道21天才能養(yǎng)成一個習(xí)慣,因此,如果你在幾天內(nèi)看到自己的寫作能力沒有提高就心浮氣躁,那么就前功盡棄了。 有一個好心態(tài),再加上養(yǎng)成良好的閱讀積累的習(xí)慣,堅持一段時間你就會發(fā)現(xiàn),英語并不像自己想象的那么困難,寫作時也變得才思泉涌。 距離四六級考試還有40多天,大家快行動起來,用閱讀攻破寫作吧! ?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 $課程限時優(yōu)惠6折起$ 【基礎(chǔ)班】:380-424分,語法詞匯基礎(chǔ)薄弱 【沖刺班】:有一定基礎(chǔ),四六級做題技巧欠缺