高中英语unit22environmentalprotectionsectionⅴ学业分层测评北师大版

《高中英语unit22environmentalprotectionsectionⅴ学业分层测评北师大版》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit22EnvironmentalProtectionSectionⅤⅠ.单句语法填空1．Notonly________Iknowher,butIwasherbestfriend.2．HesaidthattheChristmastree________(buy)soon.3．Youcaneasilygetaccess________thehumorousoldman.4．Hefixedhisattentionon________(listen)tothemorningnews.5．Atnotime________t

2、hecountrybeenmoreprosperousthanatpresent.【答案】　1.did　2.wouldbebought　3.to4．listening　5.hasⅡ.单句改错1．Thenaughtyboywasmadedohishomework._________________________________________________________________2．Notonlythestudentsbutalsotheteacherlikeholidays.________________

3、_________________________________________________3．Theonlyaccessofthecityisacrossthebridge._________________________________________________________________4．Mynewhouseispaintednow._________________________________________________________________5．Theseproblemss

4、houldhavesolvedmonthsago._________________________________________________________________【答案】　1.do前加to　2.like改为likes　3.of改为to　4.is后加being　5.have后加beenⅢ.阅读理解Alaska'sArcticlakesnowfreezelaterandmeltearlierintheyearthanin1950，leavingthemeasytosufferwaterlossfromev

5、aporation(蒸发)andpossiblyaddingtolocalwarming,anewstudyfinds.ThewintericeseasonnearBarrow,Alaska,isshorterthanin1950,researchersreportedJan.30inthejournalTheCryosphere.Lakeiceisalsothinnereachwinter.Thescientistssurveyed402lakesontheNorthSlope，wherepermafrost(per

6、manentlyfrozenground)andshallowlakesdominatethearea.In2011,thelakeicewas38percentthinnerthanin1950,and22percentfewerlakesfrozethroughtotheirbottoms.“Whenwesawtheactualnumberswewereshockedathowdramaticthechangehasbeen，”leadstudyauthorCristinaSurdu,oftheUniversity

7、ofWaterlooinCanada，saidinastatement.Surduandhercoauthorsanalyzedthechangesinlakeicethicknessandicecoverwithsatelliteimagesandclimatemodelsimulations(satelliteimagesareonlyavailablefrom1991)．TheclimatemodelssuggesttheArcticlakesfrozealmostsixdayslaterandbrokeupab

8、out18daysearlierinthewinterof2011comparedwiththewinterof1950.“ThechangesiniceandtheshortenedwinteraffectNortherncommunitiesthatdependoniceroadstotransportgoods，”Surdu