if从句能力测试题及答案剖析

if从句能力测试题及答案剖析考试时间：______分钟总分：______分姓名：______单项选择（共10题，每题3分，满分30分）1.Ifit________tomorrow,wewillcancelthepicnic.A.rainB.rainsC.rainedD.willrain2.IfI________you,Iwouldaccepttheinvitation.A.amB.wasC.wereD.havebeen3.Youcan’tachieveyourgoal________youkeeptrying.A.ifB.unlessC.becauseD.though4.Ifhe________harder,hewouldpasstheexam.A.studiesB.studiedC.hadstudiedD.willstudy5.Unlessit________heavily,wewillgoforawalk.A.rainB.rainsC.rainedD.willrain6.IfI________amilliondollars,Iwouldbuyahouse.A.haveB.hadC.willhaveD.wouldhave7.Iwillgototheparty________youinviteme.A.ifB.unlessC.becauseD.so8.Ifshe________hereyesterday,shewouldhavehelpedus.A.wasB.wereC.hadbeenD.is9.Youcanborrowmycar________youpromisetodrivecarefully.A.ifB.unlessC.thoughD.but10.IfI________time,Iwouldvisitthemuseum.A.haveB.hadC.willhaveD.wouldhave动词填空（共5题，每题4分，满分20分）1.IfI________(study)harderlastyear,Iwouldhavepassedtheexam.2.Ifit________(be)sunnytomorrow,wewillgohiking.3.Ifshe________(know)theanswer,shewouldtellus.4.Unlesshe________(arrive)ontime,wewillstartwithouthim.5.IfI________(be)you,Iwouldapologize.句型转换（共5题，每题4分，满分20分）1.Ifyoudon’thurry,youwillmissthebus.（改为unless句）________youhurry,youwillmissthebus.2.Ifitisnecessary,Iwillhelpyou.（改为省略if的倒装句）________necessary,Iwillhelpyou.3.Ifitdoesn’traintomorrow,wewillhaveapicnic.（改为unless句）________itrainstomorrow,wewillhaveapicnic.4.IfIwereabird,Iwouldfly.（改为unless句）________Iwerenotabird,Iwouldfly.5.Ifhedoesn’tarriveontime,wewillstartwithouthim.（改为unless句）________hearrivesontime,wewillstartwithouthim.翻译题（共3题，每题10分，满分30分）1.如果明天不下雨，我们就去公园。2.要不是交通堵塞，我早就到了。3.如果我是你，我会接受这个邀请。写作题（共1题，满分10分）假设你是一名中学生，请以“IfIwereascientist”为题，用至少3个if从句写一段80词左右的短文，描述你会做的事及原因。试卷答案单项选择（共10题，每题3分，满分30分）1.答案：B.rains解析：真实条件句中，if从句用一般现在时表示将来，主句用将来时。2.答案：C.were解析：与现在事实相反的虚拟语气，if从句用过去式，be动词统一用were。3.答案：B.unless解析：unless相当于ifnot，逻辑上“除非你努力，否则你不能成功”。4.答案：C.hadstudied解析：与过去事实相反的虚拟语气，if从句用过去完成时。5.答案：B.rains解析：unless引导的条件从句用一般现在时表示将来。6.答案：B.had解析：与现在事实相反的虚拟语气，if从句用过去式。7.答案：A.if解析：if引导真实条件句，表示“如果你邀请我，我会去”。8.答案：C.hadbeen解析：与过去事实相反的虚拟语气，if从句用过去完成时。9.答案：A.if解析：if引导真实条件句，表示“如果你承诺小心驾驶，你可以借我的车”。10.答案：B.had解析：与现在事实相反的虚拟语气，if从句用过去式。动词填空（共5题，每题4分，满分20分）1.答案：hadstudied解析：与过去事实相反的虚拟语气，if从句用过去完成时。2.答案：is解析：真实条件句，if从句用一般现在时表示将来。3.答案：knew解析：与现在事实相反的虚拟语气，if从句用过去式。4.答案：arrives解析：unless引导的条件从句用一般现在时表示将来。5.答案：were解析：与现在事实相反的虚拟语气，if从句用过去式，be动词用were。句型转换（共5题，每题4分，满分20分）1.答案：Unlessyouhurry解析：unless相当于ifnot，所以“ifyoudon’thurry”改为“unlessyouhurry”。2.答案：Isnecessary解析：省略if后，将“is”提前形成倒装。3.答案：Unlessitrains解析：unless相当于ifnot，所以“ifitdoesn’train”改为“unlessitrains”。4.答案：UnlessIwerenotabird解析：unless相当于ifnot，所以“ifIwereabird”改为“unlessIwerenotabird”。5.答案：Unlesshearrives解析：unless相当于ifnot，所以“ifhedoesn’tarrive”改为“unlesshearrives”。翻译题（共3题，每题10分，满分30分）1.答案：Ifitdoesn'traintomorrow,wewillgotothepark.解析：真实条件句，if从句用一般现在时，主句用将来时。2.答案：Ifithadn'tbeenforthetrafficjam,Iwouldhavearrivedearlier.解析：含蓄虚拟语气，与过去事实相反，用“ifithadn'tbeenfor...”。3.答案：IfIwereyou,Iwouldaccepttheinvitation.解析：与现在事实相反的虚拟语气，if从句用过去式，be动词用were。写作题（共1题，满分10分）答案示例：IfIwereascientist,Iwouldinventamachinetocleantheocean.IfI