10.After the _____working,we have finished _____of the whole work.(  )
A.four-hour; three-fourthesB.four-hour; three-fourths
C.four-hours; three-fourthes   

分析 經(jīng)過了四個小時的工作之后,我們已經(jīng)完成了全部工作的四分之三.

解答 答案:B
第一個設(shè)空處缺少定語,應(yīng)該用連詞符號的結(jié)構(gòu):基數(shù)詞-名詞單數(shù),第二個設(shè)空處根據(jù)句意判斷需要分?jǐn)?shù)"四分之三",分?jǐn)?shù)表示法:分子用基數(shù)詞,分母用序數(shù)詞,如果分子大于1,分母需要用復(fù)數(shù)形式,A項的fourthes書寫錯誤.故選B.

點評 正確理解句意掌握數(shù)詞的用法是做好本題的關(guān)鍵.

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