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1、if条件状语从句-课件好用Ifyoucoolwater,itturnsintoice.①②ifclause从句mainclause主句Ifsentencesif引导的条件状语从句1.Ifyouheatmetal,itmelts.如果把金属加热，它就会融化。2.Waterturnsintoiceifyoucoolit.如果你冷却水，它就会变成冰。ifclause从句mainclause主句从句主句从句主句从句在主句前时，____（用/不用）逗号隔开当主句在前时，则____（用/不用）逗号不用用Actionsw
2、ithDefiniteResultsWater________(turn)intoiceifyou__________(cool)it.Ifyou________(stand)intherain,you_________(get)wet.turnscoolstandget--b--d--g--a--h--c--f--eExerciseA11.Ifyou___________________water.2.Aballoon_____________________it.3.Ifyou_____________
3、______water.4.Metal_____________________it.5.Wood_________________water.6.Aglass_________________it.heatice,itturnsintoburstsifyoustickapinintocoolsteam,itturnsintomeltsifyouheatfloatsifyouputitintobreaksifyoudropExerciseA2Actionswithpossibleresults读下列例句，总
4、结if的用法：1.Ifheruns,he’llgetthereintime.如果他跑步去，就会及时赶到那。2.Hewillhelpyouifyouaskhim.如果你请他帮忙，他会帮你的。3.Ifyoufailintheexam,youwilllethimdown.如果你考试失败了，你会让他失望的4.Ifyougetuplate,youwillbelateforschool.如果你起床晚了，上课就会迟到。由例句我们可以知道：在if引导的条件状语从句中，如果从句谈论的是一个有可能发生的事实以其产生的相关结果，
5、从句用_____________,主句用_______________.一般现在时态一般将来时态(主将从现)I________(stay)athomeifit_______(rain)tomorrow.Ifhe____________(notcome),I_____________(go)swimmingalone.willstayrainsdoesn’tcomewillgoActionswithPossibleResultsIfyougetuplate,youwillbelateforschool.Loo
6、kandsaygetuplatelateforschoolIfthetelephonerings,Iwillanswerit.LookandsayringanswerIfIhavealotofmoney,Iwillbuyabighouse.Lookandsayalotofmoneyabighousehard-workingIfsheishard-working,shewillgetgoodgrades.getgoodgradesLookandsaygofishing.IfitissunnythisSunda
7、y,I’llgofishing.LookandsaysunnythisSundayP105BWilliamhasfiveproblemsGivehimsomeadvicefromcolumnAandB1Isometimesforgettotaketherightbooktoschool.Ifyoucheckyourtimetableeverynight,you’llknowwhichbookstotake.一、判断正误，如果有误，请更正1.Ifyouwilldomoreexercisethissummer,
8、youwillbeveryfit.2.Thecandleburns,ifyoulightit.willdo→do把逗号去掉3.IwillbuildmanyschoolsforthepoorchildrenifIwinabilliondollars.4.Ifyoufreezewater,itwillturnintoice.5.Myunclevisitsthemuseumifhewillhavetime.正确will
