倍数表达法(1)A+谓语+倍数+as+原级+as+BThefigureofseventy-milliondollarswastwiceasbigasexpected.(2)A+谓语+倍数+比较级+than+BThemeetingroomisthreetimesbiggerthanouroffice.(3)A+谓语+倍数+thesize(width/length/height/depth等)+of+BAsaresult,FacebookisprobablytenormoretimesthesizeofTwitter.
2.Allthosesecond-handgoodsaresoldat_____before.A.30%aslowerpriceas B.as30%lowpriceasC.30%aslowapriceas D.30%lowerpricethan1.Tenyearsagothepopulationofourvillagewas__________thatoftheirs.A.astwicelargeas B.twiceaslargeasC.twiceasmuchas D.astwicemuchas强化训练解析：根据句意可知这里使用倍数的表达，倍数+as+形容词原级+as的结构，修饰population用large不是much.故选B。解析：这一类型的比较有固定公式：倍数+as+形容词+冠词+名词+as。所以选择C。
4.Thereare____doctorsinthishospital,andtwofifthsofthemarewomendoctors.A.twohundred B.twohundreds C.twohundredof D.twohundredsof3.Itisnotrarein________thatpeoplein_______fiftiesaregoingtotheuniversityforfurthereducation.A.1990s;theB.the1990s;/ C.1990s;theirD.the1990s;their解析：表示几十年代时用定冠词the+年代的复数;表示几十多岁时,用one’s+几十的复数。此题答案应为D。解析：考查数词。句意医院里有两百名医生，其中许多是女医生.数词+hundred几百，hundred不用复数形式。B不正确.hundredsof数百的。前面不跟数词，表示模糊的数字。故选A。强化训练
1.Theladystillkeepsjoggingeveninher________(ninety).解析：考查基数词。句意：这位女士九十多岁了还坚持慢跑。“inone’s+几十的复数形式”为固定搭配，表示“某人的年龄处于某段时间”，ninety的复数形式是nineties。故填nineties。nineties2.Muchtothecouple’scomfort,theirincomeisnowdouble_______itwasfiveyearsago.解析：考查倍数表达的固定句型。句意：令这对夫妇感到欣慰的是，他们现在的收入是五年前的两倍。“A+谓语+倍数+what从句”是倍数表达法之一，句中double为形容词，相当于twiceasmuchas...。故填what。what强化训练
3.Thiswebsiteisvisitedby_______(billion)ofpeopleeveryday.解析：考查数词的用法。句意:每天有数十亿人浏览这个网站。billionsof表示“数十亿”。故填billions。billions4.Two______(three)ofthepeoplewholivedthereweredeadorinjured.解析：three三，基数词，在英语中表示分数时，分母数字用序数词表示，如果分子数字大于一，则分母序数词要加s，故三分之二应译为twothirds。故填thirds。thirds强化训练
5.Theworldswildlifepopu