2020高一轻松寒假20天提升作业（适用高一新教材）英语第14天——Unit4 Discovering Useful Structures
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2020-02-07 18:13:36
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高一年级高一年级2020天轻松提升英语第天轻松提升英语第1414天Unit4DiscoveringUsefulStructuresUnit4DiscoveringUsefulStructures(建议用时40分钟)Ⅰ.阅读理解AForthepastweek,hundredsoffirefightershavebeenbattlingawildfirethatstartedonMarch26inthemountainssouthwestofDenver,Colorado.Thefirequicklyburnedthrough4,140acresofland—anareathesizeofmorethan3,000footballfields.Itkilledthreepeople,destroyedatleast25houses,andforcedhundredsofpeopletoevacuatetheirhomes.InvestigationshavefoundthatthefirewaslikelycausedbyacontrolledburnstartedoneweekearlierbytheColoradoStateForestService(CSFS).Acontrolledburnisafireignited(点燃)byprofessionalstoclearthegroundofbuilt-upfuel—suchasdeadwood,thicklayersofpineneedles,andovercrowdedtrees—thatcancausedangerouswildfires.HundredsofcontrolledburnshavebeensafelymanagedinColoradoforestsoverthepastfewmonths.
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