SectionⅢGrammar—it的用法(2)语法图解1探究发现①Thereisnodoubtthattheearthisbecomingwarmerandthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.②ItwasascientistcalledCharlesKeeling,whomadeaccuratemeasurementsoftheamountofcarbondioxideintheatmospherefrom1957to1997.③Theyalsoagreethatitistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseinca...
语法图解SectionⅢGrammar—it的用法(1)1探究发现①ItisabeautifuldayhereandIamsittingunderthebigtreeattheendofthegarden.②Yourmothertellsmethatyoustartedsmokingsometimeagoandnowyouarefindingitdifficulttogiveitup.③Itisnevertoolatetomend.④Itisnousetalkingtothem.⑤Itissaidthathestolethemoney.⑥IthinkitdifficulttolearnEnglishwell.⑦Wemakeitclearthatspeakingtotheteacherinthatwayisnotpolite.⑧Idon...
