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與介詞of 連用;表示不確定數(shù)量時,要用復(fù)數(shù)形式,同時要在其后加介詞of,thousands of,后接可數(shù)名詞復(fù)數(shù)。D.C.B. seats to audience. A.s forties的用法。根據(jù)短語in their forties,在四十多歲,可知比較符合句意,故選A。D.C.B.19.—Have you heard of the TwoChild policy? —Of course. And I know many couples have new babies in their ______.A.表達確切數(shù)字用基數(shù)詞+hundred,表達非確切數(shù)字用hundreds of,前面沒有具體數(shù)字,因此用hundreds of,故選C。D.hundreds ofB.hundred18.There are 四分之三用three fourths或者three quarters,故選D。你們都應(yīng)該好好照顧你們的眼睛。three quarters【答案】 D 【解析】【分析】句意:——爸爸,大約四分之三的同學(xué)戴眼鏡。C.third fourths terrible. You all should take good care of your eyes. A.17.—Dad, about eightyfive thousands, six hundred and twentysix【答案】 B 【解析】【分析】句意:用英語怎樣讀85, 626?英語數(shù)學(xué)詞的讀法是:從右往左每三個數(shù)字是一組,用逗號隔開,從右往左第一個逗號讀hundred,百位和十 位間用and連接,所以讀作eightyfive thousand, six hundred and twentysix,故選B。eightyfive thousand, six hundred and twentysixC.16.How to read 85, 626 in English? A.根據(jù)第一個空可知,此處填入基數(shù)詞,答案為nine,第二個空填入序數(shù)詞,答案為fifth,故選A。 fifth【答案】 A 【解析】【分析】句意:我外公家有9個孩子,并且他是第五個孩子。D. fiveC. fiveB. fifthchild of the family. A.s family and he is the 注意識記thousand的用法。thousand,千,其前有具體數(shù)詞修飾時,用其單數(shù)形式,當其前沒有具體數(shù)詞修飾時,用其復(fù)數(shù)形式,且和of連用,thousands of,成千上萬,這里沒有具體數(shù)詞修飾,故選D。D.C.B.t wait to buy one in our town. A.s fifties。 【點評】考查數(shù)詞的用法及固定搭配。in one39??栺R克思在他五十多歲時開始學(xué)習(xí)英語。D.C.B.s never too old to learn. Karl Marx began to learn English in his ________. A.掌握時代的表達方式。s fifties在某人五十多歲時;故選D。In the 1870s, in his fifties【答案】 D 【解析】【分析】句意:在十九世紀七十年代,馬克思已經(jīng)五十歲了,他覺得研究俄國的形勢很重要,便開始學(xué)習(xí)俄語。In the 1870s, in fiftiesB.In 1870s, in his fifties 【點評】考查數(shù)學(xué)詞的表達,注意平時識記表示確切數(shù)字用基數(shù)詞+million,表示幾百萬;表示非確切數(shù)字時用millions of,數(shù)百萬。表示確切數(shù)字用基數(shù)詞+million,表示幾百萬;表示非確切數(shù)字時用millions of,數(shù)百萬,固定搭配。D.C.B.11.In 2010, ___________ people from all over the world came to Shanghai to see the World Expo. A. 【點評】此題考查數(shù)詞。他們住在九樓。fifth。five。fifth。five。s family. They live on the10.There are 【點評