if引导的虚拟语气PPT课件.ppt

1、.1，实际条件语句和虚拟条件语句，2，3，1。客观事实或真相ifyoufreezewater，ittur stoice . ifyouealotofchocolate，youputonweight，实际条件语句，子句订单章if通常是当前，通常是当前，4，2。表示未来可能发生的事情ifhefailsintheexam，hewilltlethisparentsdown。youwilltcertsainlysucceedifyoukeepontrying，子句主句(叙述句)if一般是现在，一般是未来(will动词原型)，5，3。向某人提出建议或命令某人做某事的ifyoufeelsleepy，goto

2、 bed。ifyouwanttoknophowitworks，readdtheinstructions，子句主句if一般现时，命令句，6，If诱导的虚拟条件语句，即以条件语句表示的条件，意味着完全实现或不实现的可能性很小。根据动作发生时间，包含不真实条件语句的复合子句的谓语动词使用不同的表达方式。虚拟条件语句，7、8，1，与当前事实相反，ifiknewhistelephonenumber，iwouldltellyou。ifiwereyou，iwoulntbesopsroud。9，2，与过去事实相反1。ifhehadotakenmyadvice，Hewould nothaveemadesucha

3、mistake . 2 . ifihadothereearmer，iwould haventher。10，3，与未来事实相反1。iftherewreaheavysnownextunday，wewoulnotgoskating . 2 . ifsheshouldome，iwouldltellherbouttthematter。11，theprinterisofgfoodquality . ifit _ _ _ _ breakdownwitinthefirstyear，wewouldmrepairpitatururexpense . a_ _ _ _ _，Theforestfirewall hav

4、eebeendisscoveredmuchearlier . a . butfortheircareb . iftheywerecard . withoutheircared . iftheircared，13，4。theweatherhas benveryhotanddry。-是。ifithadrainedevenadrop，thingswouldbmuchbetternow！Andmyvegetables _ _ _ _ _ _ _ _ _ _。a . would en“tdieb . didn”tdiec . haden“TDI edd . would en”t have died，14，5。hadiik noknown boutthecomputerrprogram，Ahugeamountofimeondenergy _ _ _ _ _ . a . would bhadby . haddeensavedc . wildbhadby，15，6。ifwe _ _ _ _ the other road，wemighthaverivedhereintimemfort