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s in their ______.A.B.C.D.根據(jù)短語in their forties,在四十多歲,可知比較符合句意,故選A。s forties的用法。twelve, ninthtwelve, ninethtwelfth, ninthtwelfth, nineth【答案】 A 【解析】【分析】句意:一年分為十二個月。第一個空格后有month,月,可數(shù)名詞復(fù)數(shù)monthes,其前要用基數(shù)詞表示數(shù)量。要用ninth第九。 【點評】考查基數(shù)詞和序數(shù)詞。22.Ten years ago the population of our village wasas twice large astwice as large astwice as much asas twice much as【答案】 B 【解析】【分析】句意:十年前,我們村子的人口是他們的兩倍。 【點評】考查倍數(shù)的表達方式。activities.A. thirdB. thirdC. threeD. three【答案】 C 【解析】【分析】句意:——我們的學(xué)校打算舉辦第三屆文化節(jié)嗎?——是的。根據(jù)語境可知第三屆文化節(jié),是第三次,要用序數(shù)詞the third,三個活動,表示數(shù)量;要用基數(shù)詞three,修飾可數(shù)名詞復(fù)數(shù),故選C。24.About of the work will soon be finished. A.two threesC.two thirds【答案】 D 【解析】【分析】句意:大約三分之二的工作將很快被完成。 【點評】考查分數(shù)詞的表達法。d love to, but it39。s ______ birthday and we will have a celebration. A.ninetiethC.表示某人多少歲的生日,是第幾個生日,應(yīng)該用序數(shù)詞,第九十,ninetieth,故選B。注意序數(shù)詞的拼寫和用法。1980, the firstthe 1980s, the first1980s, firstthe 1980s, first【答案】 D 【解析】【分析】句意:倫納德20世紀80年代出生于洛杉磯。在20世界80年代,固定搭配,in the 1980s,his是限定詞,其后是序數(shù)詞,故選D。27.In Yunnan province, there is a valley famous for its butterflies. You will see over four _______kinds of butterflies flying around ________ you get into the valley. A. whenB. whileC. untilD. if【答案】 A 【解析】【分析】句意:在云南省,有一個以蝴蝶聞名的山谷。數(shù)詞+hundred,幾百,用hundred 的單數(shù)形式,hundreds of,好幾百,不和數(shù)詞搭配,故排除B和D;進入山谷和看見蝴蝶之間是并列關(guān)系,因此用when, 當……時,while表對比,until與not連用,if表假設(shè),均不符題意,故選A。28.Alibaba CEO Jack Ma has decided to retire from his pany in his _________. A.B.C.D.in one39。s fifties,在某人五十多歲時,故選B。注意固定短語,in one39。29.—What should we do now, Mr. Wang? —Please go to Building ________ to wele the ________ new teacher.A.B.C.D.表示幾號樓,如果先說building,那么后面的數(shù)字使用基數(shù)詞,如果數(shù)字在前就是用序數(shù)詞。 【點評】考查基數(shù)詞和序數(shù)詞,注意基數(shù)詞和序數(shù)詞之間的用法區(qū)別。s the ______ time for me to visit the Shunfeng Park. And I want to visit it a sixth time. A.B.C.D.這是我第五次參觀順豐公園,我想第六次去參觀?!军c評】考查數(shù)詞,注意定冠詞后是序數(shù)詞的用法