摘要：
暗黑者顾珊珊petroleum．Secondly,theydonotcausethepollutionproblem．Lastbutnotleast,theycontrib... 暗黑者顾珊珊
petroleum．Secondly,theydonotcausethepollutionproblem．Lastbutnot
least,theycontributetopeople'shealthbygivingthemduephysical
exercise．
9．表示数量
暗黑者顾珊珊
1）Ithasincreased（decreased）from．．．to．．．
2）Thepopulationinthiscityhasnowincreased（decreased）to800,000．
3）TheoutputofJulyinthisfactoryincreasedby15％comparedwiththat
ofJanuary．
暗黑者顾珊珊
例如:Withtheimprovementofthelivingstandard,theproportionofpeople's
incomespentonfoodhasdecreasedwhilethatspentoneducationhas
increased．
再如:Fromthegraphlistedabove,itcanbeseenthatstudentuseof
computershasincreasedfromanaverageoflessthantwohoursperweekin
1990to20hoursin2000．
10．表示看法
