一预示后果型1.Obviously,ifwedon’tcontroltheproblem,thechancesarethatwillleadusindanger.很明显，如果我们不能控制这一问题，很有可能我们会陷入危险。2.Nodoubt,unlesswetakeeffectivemeasures,itisverylikelythat毫无疑问，除非我们采取有效措施，很可能会3.Itisurgentthatimmediatemeasuresshouldbetakentostopthesituation.很紧迫的是，应立即采取措施阻止这一事态的发展。结尾型4.Takingallthesefactorsintoconsidera...
