12.sea n. expanse of salt water that covers most of the earth’s surface and encloses its continents
     and islands; any part of this海，洋
    總頻率24次。
    音同義異，最需注意！
     sea和see可以一起記憶，發(fā)音相同，但意思不同，由sea可聯(lián)想到river,ocean,seabed,coast,seasick,seaman等詞。
    【常用詞組】 by sea乘船，由海路 / on the sea在海邊，臨海 / at sea在海上，茫然，迷惑 / a sea of
    一大片，大量的 / follow the sea當(dāng)海員，做水手
    13.nausea n. feeling of sickness (esp as caused by bad food) or disgust; seasickness作嘔，惡心，暈船
    14.tea n. ①evergreen shrub grown in China, India, etc.茶葉 ②drink made by pouring boiling water o
    n these leaves茶 ③a small meal, usu. served in the afternoon with a cup of tea午后茶點
    總頻率2次。
    抓住詞干，記住一串！
    與tea有關(guān)的詞：tea green茶綠色；teakettle茶壺；teastrainer濾茶器；tea tray茶盤；teaspoon茶匙
    15.sofa n. large comfortable padded seat with raised arms and back, wide enough for two or more people沙發(fā)
    16.encyclopadia/encyclopedia n. book, or set of books, giving information about every branch of knowledge or on subject, with articles in ABC order.百科全書
    17.India n. the country of Indian印度
    總頻率1次。
    18.Australia n.澳大利亞，大洋洲
    總頻率4次。
    Austra.
    19.Oceania n. the islands of the central and south Pacific, including Micronesia, Melanesia, Polynesia, and some times Australasia and the Malay Archipelago大洋洲
    20.pneumonia n. a serious disease of the lungs with inflammation and difficulty in breathing肺炎
    21.malaria n. kinds of fever conveyed by mosquitoes ; which introduce the germs into the blood瘧疾
    構(gòu)詞有法，擴散記憶！ 派生詞： malarial = malarian adj.瘧疾的，患瘧疾的；
    malariology n.瘧疾學(xué)；malariologistn.瘧疾學(xué)家，構(gòu)詞法：-logy是后綴，意思為 process of study （研究過程）。連接元音o連接詞與詞根，及詞根與后綴。這類構(gòu)詞方式在英語詞匯中很多，考生可以通過對其結(jié)構(gòu)的分析而達到理解其含義的目的。如：gastroenterology胃腸（?。W(xué)；biology生物學(xué)；physiology生物學(xué)
    22.cafeteria n. restaurant at which customers collect their meals on trays at counters and carry them to tables 自助餐館
    同類聯(lián)想，擴散記憶！ canteen,cafe, restaurant , eating-house, refectory , snack bar
    A cafeteria is a restaurant , at which customers collect their food on trays at counters and carry them to tables . cafeteria是顧客自己從柜臺拿菜飯至餐桌食用的餐館。
    【常用詞組】 a cafeteria question 自選問答題
    【詞義辨析】 canteen 尤指工廠、辦公室、軍營里的小賣部；dining-hall （吃飯用的）餐廳；pub （俗）酒館
    23.Asia n.亞洲
    總頻率1次。
    24.Russia n. 俄羅斯，俄國
    總頻率11次。