仁爱版九年级上册第四单元Topic-3知识点

Unit4AmazingScienceTopic3Chinaisthethirdnationthatsentapersonintospace.重点单词electronicadj.电子的doubtn.v.怀疑，疑惑tinyadj.极小的，微小的insideprep.在……内；在……里adv.在里面brainn.脑；智力；脑力cancelv.取消，撤销；废止connectv.连接；把……联系起来certainadj.确定的，无疑的；一定会……warnv.警告，告诫mightv.可以，可能houseworkn.家务劳动，家务事重点短语1.nodoubt无疑地2.forinstance例如3.forcertain肯定，确定，无疑4.onone’sown独自，单独重点句型1.ItprovesthatChinahasmadegreatprogressinitsspaceindustry.2.Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.3.Besides,noteverythingwereadontheInternetistrueorgoodforus.4.Nooneknowsforcertain,butmostpeoplethinkthatrobotswillbepartofourlives.重点语法1.定语从句（I）that,which,whoReviewofUnits3-4重点单词magazinen.杂志wifen.妻子，太太paintn.油漆；油漆涂层v.在……刷油漆；用颜料画palacen.王宫，宫殿towern.塔