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如果分子大于1,表示分母的序數(shù)詞要用復(fù)數(shù)形式,如:two thirds 三分之二。由“分?jǐn)?shù)或百分?jǐn)?shù)名詞”構(gòu)成的短語作主語時(shí),其謂語動(dòng)詞的數(shù)要根據(jù)短語中后面名詞的數(shù)而定。如:60% of the students in our class are 。Two thirds of the apple is 。13.There ________ a book sale in our school library once a year.A.is B.was C.a(chǎn)re D.were【答案】A【解析】【詳解】句意:我們學(xué)校圖書館每年有一次圖書銷售。A. is是,單數(shù);B. was是,過去式; C. are是,復(fù)數(shù);D. were是,復(fù)數(shù),過去式。根據(jù)once a ,排除BD;這里是there be句型,主語是a book sale,be動(dòng)詞用is,根據(jù)題意,故選A。14. students in the classroom twenty. The others are in the library.A.The number of。 isB.A number of。 areC.The number of。 are【答案】A【解析】試題分析:句意:教室里的學(xué)生人數(shù)是二十,其他的人在圖書館。The number of ……的數(shù)量,謂語動(dòng)詞用單數(shù);a number of大量的,謂語動(dòng)詞用復(fù)數(shù)。The others其他的,表示復(fù)數(shù),謂語動(dòng)詞用復(fù)數(shù),結(jié)合題意故選A??键c(diǎn):考查主謂一致。15.When will the railway that connects the two cities open?_____ next two thirds been built.A.Until。 has B.Not until。 hasC.Until。 have D.Not until。 have【答案】B【解析】試題分析:句意:—連接兩地的鐵路什么時(shí)候開通? 到明年才開。已經(jīng)建成了三分之二。not…until直到……才;Only two thirds 作主語謂語動(dòng)詞要用第三人稱單數(shù)形式,所以選B??键c(diǎn):考查主謂一致。16.The population of China _______over billion and China has _______population in the world.A.is, the bigger B.a(chǎn)re, the biggest C.is, the biggest D.a(chǎn)re, the bigger【答案】C【解析】句意:中國人口超過15億,中國是世界上人口最多的國家??疾橄祫?dòng)詞和最高級(jí)辨析題。主語The population是單數(shù)第三人稱,系詞需用is,可排除are。bigger更大/多的,比較級(jí)不可用定冠詞the,可排除A項(xiàng)。根據(jù)句意語境,in the world(在世界上)表示的范圍廣泛,需用最高級(jí),故選C。17.—Read the news! A large number of elephants ____ killed for ivory.—Those people are so cruel! Recently the number of elephants ____ fallen by 50%.A.a(chǎn)re。 has B.is。 has C.a(chǎn)re。 have D.is。 have【答案】A【解析】試題分析:句意:閱讀這新聞!大量的大象被殺死取象牙。 那些人是如此的殘忍!最近大象的數(shù)量下降了50%。A large number of elephants是kill這一動(dòng)作的承受者,該用被動(dòng)語態(tài)。根據(jù)Recently可知第二處高于現(xiàn)在完成時(shí)。A large number of elephants作主語,謂語動(dòng)詞要用復(fù)數(shù)形式。the number of elephants作主語,謂語動(dòng)詞要用第三人稱單數(shù)形式。所以選A??键c(diǎn):考查主謂一致。18.The photo ________ taken by my brother last week is ve