1真实条件句真实条件句用于陈述语气,假设的情况可能发生,其中if是如果的意思
时态关系句型:条件从句主句一般现在时shall/will+动词原形Ifhecomes,hewillbringhisviolin
典型例题Thevolleyballmatchwillbeputoffifit___
willrainB
rainsC
rainedD
israined答案B
真实条件句主句为将来时,从句用一般现在时
注意:1)在真实条件句中,主句不能用begoingto表示将来,该用shall,will
(错)Ifyouleavenow,youarenevergoingtoregretit
(对)Ifyouleavenow,youwillneverregretit
2)表示真理时,主句谓语动词便不用shall(will)+动词原形,而直接用一般现在时的动词形式
2非真实条件句1)时态:可以表示过去,现在和将来的情况
它的基本特点是时态退后
同现在事实相反的假设
句型:条件从句主句一般过去时should(would)+动词原形Iftheywerehere,theywouldhelpyou
表示于过去事实相反的假设
句型:条件从句主句过去完成时should(would)have+过去分词Ifshehadworkedharder,shewouldhavesucceeded
Thericewouldnothavebeenburntifyouhadbeenmorecareful
IfmylawyerhadbeenherelastSaturday,hewouldhavepreventedmefromgoing
Ifhehadcomeyesterday,Ishould/wouldhavetoldhimaboutit
含义:Hedidnotcomeyesterday,soIdidnottel