U1Topic1takeplace发生.,进行volunteern.志愿者belln.钟声;钟.铃African.非洲disableadj残疾的.，残废的shutv.关闭.,关上everadv在任何时候.,从来ropen.绳子.绳索narrowadj.狭窄的variousadj.各种各样的reportn.&v.通讯;交流keepintouchwith与.保持联系relativen.亲属.亲戚telegramn电报电文rapidlyadv快速地.,迅速地sinceprep&conj.自.从既然reformn.改革.,改良reformandopening-up改革开放satisfyv使满足.,使满意medicaladj医学的.,医疗的cellphone=mobilephone移动电话faxn.传真.,传真机machinen.机器.，机械rapidadj.迅速的.快速的progressn.&v.进步;进展makeprogress取得进步alreadyadv已经.,早已succeedindongsth.成功地做了.pleasedadj高兴的leisuren空闲.,空暇hidev.
