Unit4phrases1.在表面，从表面上看来2.认为…是3.对…有伤害4.阻止…发生/做5.依靠，取决于6.在…面前7.感到振奋，高兴8.一大堆的9.既然10.掌握，理解onthesurfacethinkofsb/sthasbeharmfultoprevent…fromdependoninthepresenceofcheerupamassof/massesofnowthatgetthehangof11.(战争等)爆发12.结合a和b13.及时，总有一天14….和…不同15.向sb解释sth16.够幸运有个机会17.重力18.接近，靠近19.过一会breakoutcombineAand/withBintimebedifferentfromexplaintosbsth/explainsthtosblucyenoughtohaveachanceTheforceofgravitygetclosetoafterawhile20.AisthreetimesaslargeasBAistwicelargerthanBAisthreetimesthesizeofBBA21.随着时间的逝去…Astimegoesby…Withtimegoingby…22.看情况It(all)depends.beonatrip/tourtosp.1.到某地去旅游2.而不是ratherthantherestof3.剩余的4.被…包围besurroundedby/with5.(安稳地)坐下；定居下来settledownhaveagiftfor6.对…有天赋figureout7.1)算出2)想出，弄清楚，明白asfarasIknow8.就我所知atdawn9.黎明，破晓inthedistance10.在远处therebe句型Thereisgoingtobe．．．将有……Therewillbe…Thereseemstobe．．．似乎有……Thereusedtobe．．．过去常常有……Therehappenedtobe．．．碰巧有……Thereoughttobe．．．应该有……theretobe和therebeing在句中作主语、宾语和状语Therebe结构的非谓语动词形式注意：如果句中出现for时应用theretobe。Itwastoolatefortheretobeanybuses.太晚了，没有公共汽车了。用状语,通常用therebeing结构,表原因Therebeingnobuses,wehadtowalkhome.由于没有公共汽车，我们不得不走着回家。由于没事可做，我们快乐地回家了。Therebeingnothingelsetodo,wewenthomehappily
