【Smog(雾霾)isoneofthehottestsubjectstheseyears.ItdoesgreatharmtoI”*people'shealth.ThemostterriblesmoglastedforaboutaweekinFebruary2014.Itcovered15percentofthelandinnorthernandcentralChina.Now】

　　   Smog(雾霾)isoneofthehottestsubjectstheseyears.ItdoesgreatharmtoI”*

　　people'shealth.ThemostterriblesmoglastedforaboutaweekinFebruary

　　2014.Itcovered15percentofthelandinnorthernandcentralChina.

　　  NowmoreandmorepeopleinChinahaverealizedtheimportanceofprotectingtheenvironment.Theytrytosaveenergybywalkingorridingtoworkintheirdailylife.CitiesincludingBeijingandShanghaihavetakenactionbycontrollingthenumberofcarsandclosingheavilypollutingfactories.

　　  Beijingisheavilypollutedsoi?snoteasytoseeblueskiesthere.ButduringtheAPECsummit(亚太经合会议峰会)inNovemberlastyearBeijingsawblueskiesforafewdays.Peoplehappilycallthat“APECblue”.

　　  IhopetheAPECblueskywilllastandIbelieveitwillbecauseChinahasputgreateffortsintoreducingpollution.saidPresidentXiJinpingduringthesummit.

　　  ThetwolargecountriesChinaandtheUSA.produceabout45percentoftheworld'sgreenhousegases(温室气体).OnNovember12PresidentsXiJinpingandObamaannouncedthatbothcountrieswouldworktogethertocutdownC02emissions(二氧化碳的排放).Thegoalneedsevervone'seffort.

　　冋答下面5个问题，每题答案不超过6个词。

　　31.HowlongdidthemostterriblesmoglastinChinainFebruary2014?

　　32.HowdomoreandmoreChinesepeoplehelpsaveenergyintheirdailylife?

　　33.WhyisitdifficultforBeijingtoseeblueskies?

　　34.WhenwastheAPECsummitheldinBeijing?

　　35.WhatwouldChinaandtheUSAworktogethertodo?