课时作业13Unit5SectionⅡReadingandThinkingⅠ.单句语法填空1．Given(give)moreattention,thetreecouldhavegrownbetter.2．Lightningisoneofthenaturalphenomena(phenomenon),soyouneedn'tbeafraidofit.3．Ifindthatdoingphysicalexerciseacoupleoftimesaweekmakesmefeelmoreenergetic(energy)．4．Accordingtomyownunderstanding,agoodteacherisalsoagoodperformer(perform)inclass.5．Wehavereachedastagewherewemusttakeeffectivemeasurestoprotecttheenvironmentfrombeingpolluted.6．Itwasobvioustoallthathehadchangedhisoriginal(origin)idea.7．Hemadealotofmoneybydoingaparttimejob,enabling(enable)himtogoonwithhisstudy.8．Asisreported,theactivityisverysuccessful.9．Afewmonthsafterhehadarrive...
