Unit2Peopleonthemove●GrammarandUsageStep1:GeneralintroductionThegrammaritemsinthisunitfocusononeaspectofthestructureofanarticle—...
Unit2Peopleonthemove●Grammarandusage1.Notallparagraphshaveatopicsentence.(P24)并不是所有的段落都有中心句。英语中的部分否定(即...