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【點評】考查數(shù)詞,注意定冠詞后是序數(shù)詞的用法。D.C.B.s the ______ time for me to visit the Shunfeng Park. And I want to visit it a sixth time. A.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。注意固定短語,in one39。in one39。C.28.Alibaba CEO Jack Ma has decided to retire from his pany in his _________. A. 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。C. while27.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.the 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。1980s, firstthe 1980s, the first1980, the first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。ninetieths ______ birthday and we will have a celebration. A. 【點評】考查分數(shù)詞的表達法。C.two threes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)名詞復數(shù),故選C。D. threeB. thirdas 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。twice as large as22.Ten years ago the population of our village was要用ninth第九。twelfth, nineth【答案】 A 【解析】【分析】句意:一年分為十二個月。twelfth, ninthtwelve, ninethtwelve, ninth根據(jù)短語in their forties,在四十多歲,可知比較符合句意,故選A。C.20.—Have you heard of the TwoChild policy? —Of course. And I know many couples have new babies in their ______.A.three【答案】 C 【解析】【分析】句意:校長的辦公室在三樓。floor. A. 【點評】考查分數(shù)的基本構(gòu)成。three fifths。third fifth。根據(jù)It39。晚上10點之前睡覺是健康的。C.s healthy to fall asleep before 10 .A.two是確切數(shù)字,故選A。thousand ofthousands fifties在某人五十多歲時;故選D。B.In 1870s, in his fiftiesTwo third【答案】 C 【解析】【分析】句意: 我們學校的學生中有三分之二是男生。C. 【點評】考查數(shù)詞和名詞的用法。D.Sixteenyearolds數(shù)量詞作定語應(yīng)用連字符,并且量詞用單數(shù),故選B。C.12.______ should not be allowed to go out at night. A.他們住在九樓。five。five。s family. They live on the11.There are 因為在這個月暑假開始了。 【點評】考查數(shù)詞用法。C.first 【點評】考查序數(shù)詞辨析。谷物雨通常在一年中的四月開始。 【點評】此題考查數(shù)詞用法。thousands of 【點評】 考查數(shù)詞,注意識記thousand的用法。six thousand6.We ga