【正文】
數(shù),因此四分之三,threefourths。threefourth。three fourths。threefourth。注意分數(shù)由基數(shù)詞和序數(shù)詞構成,分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母用復數(shù)。分數(shù)的表達:分數(shù)由基數(shù)詞和序數(shù)詞構成,分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母用復數(shù),因此三分之二的英文是 two thirds;in the 2000s,表示21世紀,故選A。two thirds。two third。two threes。two thirds。 of the students in our class were born in the注意序數(shù)詞的用法。第九,應用序數(shù)詞ninth,且前面有物主代詞his修飾,所以不能加定冠詞the,故選B。D.C.B. birthday. A.19.Mr. King bought his son a new bike as a gift for his 【點評】考查分數(shù)的表達和be動詞用法。分數(shù)由基數(shù)詞和序數(shù)詞構成,分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母用復數(shù),所以五分之二的表達為two fifths。Two fifths。Two fifth。Two fifth。Two fifths。 18.根據(jù)可數(shù)名詞復數(shù)guests和 at least eight people dead and several others ,而其他幾個人失蹤 ,可知總人數(shù)不確定,因此用固定搭配dozens of,幾十,數(shù)詞的復數(shù)形式+of,表示概數(shù),故選A。D.C.B. guests sank in the Tigris River in central Baghdad late on Thursday, leaving at least eight people dead and several others missing. A. 【點評】考查數(shù)學詞的讀法,注意平時識記其讀法規(guī)則。fiftyeight thousand, six hundred and twentysixD.eightyfive thousands, six hundreds and twentysixB. 【點評】考查數(shù)詞辨析,注意hundred的用法。thousands of【答案】 B 【解析】【分析】句意:上周,我們學校5百名學生參加了運動會。hundreds ofhundredthousands 【點評】考查分數(shù),注意分子是基數(shù)詞,分母是序數(shù)詞,分子大于一,分母加s的用法。Two 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.Second three14.______ of the students in our school are boys. A.根據(jù)句意可知,此處需要填入的意義為第三層,故應該用序數(shù)詞,故選C。three【答案】 C 【解析】【分析】句意:校長的辦公室在三樓。C.twofloor. A.13.The headmaster39。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 【點評】考查數(shù)詞,注意join sb的用法?!屛覀?nèi)ゼ尤胨麄儼伞?1.—____________of volunteers will be needed for the 2020 Olympic Games. —Let39。注意英語中分數(shù)詞是以基數(shù)詞和序數(shù)詞合成的,基數(shù)詞代表分子,序數(shù)詞代表分母。five五,基數(shù)詞;fifth第五,序數(shù)詞;fifty五十,基數(shù)詞;故選C。此處考查分數(shù)的表達方法,分數(shù)詞是以基數(shù)詞和序數(shù)詞合成的,基數(shù)詞代表分子,序數(shù)詞代表分母。D.fifthB.five理解句意,然后判斷出正確的答案。根據(jù)句意,可知九月是一年的第九個月,故選C。tenth【答案】 C 【解析】【分析】句意:九月是一年