条件状语从句公开课课件

GrammarWhatwillIdoifitissunnythisweekend?Part1:If的用法1.Iwanttoknowifhewillgotoparkwithus.2.Wewillhaveapicnicifitdoesn’train.3.Ifyouboilwater,itbecomessteam.4.Ifyoufeeltired,youmusthavearest.宾语从句条件状语从句语法1：if作为宾语从句的引导词，引导宾语从句。（是否）语法2：if（如果）引导的条件状语从句❀if用于宾语从句中原句式引导词从句语序一般疑问句whether/if改为陈述句语序由从属连词whether,if引导的宾语从句e.g.1.Iwanttoknow__________________________________.（他是否跟我们一起去公园）2.Askhim_____________________.（他是否能来）3.Ididn’tknow___________________________.（是否要下雨）if(whether)hewillgototheparkwithuswhether(if)hecancomewhetheritwasgoingtorainornot当句末为ornot时，引导词只能用whether而不能用if.If与whether的区别1.Idon’tknow_____hewillcomeornot.2.Idon’tcareof______heishandsome.3.Hewondered______tostayherethenextweek.4.____hewillcomeisnotdecided.与ornot连用只能用whether介词后只能用whether与todo不定式连用只能用whether作主语只能用whetherIf引导条件状语从句Ifitissunnythisweekend,whatwillyoudo?Ifitissunnythisweekend,I__________footballwithmyclassmates.Ifitissunnythisweekend,I__________.willplayIfitissunnythisweekend,whatwon’tyoudo?Ifitissunnythisweekend,I_____________________.Ifitissunnythisweekend,I_____________________.Won’tstayathomewon’twatchtelevisionIfyouhaveapicnicatweekends,whatwillyoubuy?•If________,______________.Ifdogbitesyou,whatshouldyoudo?Askforhelpfromteachers/parents/friends.washthewoundcallforhelptakemedicineseethedoctorIfadogbitesyou,first,youshould_______________.Then,youshould___________________.Next,youshould___________________.Andyoushould…Staycoolif条件句不一般,几个要点记心间;条件句,放在前,逗号要放句中间。条件句表可能，主将从现不一般；条件句表事实，主句常用现在时If还有“是否”意,宾语从句放后边summary分析试题特点及做题思路：考连词----做题思路考时态-----做题思路：分析句子---判断关系---选择正确的if的用法认字---判断语境提供的时态特点---选择正确的时态1.I’msureifhe_____(go)totheparty,he________(have)agreattime.2.Iftherain_______(stop)tonight,wewillgotothecinema.3.I’llbuyacomputerifI______(have)enoughmoney.4.You_________(notget)nervousifyou_____(do)enoughexercise.5.Iwanttoknowifhe_________(come)tomorrow,ifhe_______(come),I__________(give)themassagetohim.goeswillhavestopshavewon’tgetdocomeswillcomewillgiveExercise:Part2:Unless的用法Youwillfailtoarrivethereintimeunlessyoustartearlier.Ifyoudon’tstartearlier,youwillfailtoarrivethereintime.unless=if...not除非,若不,除非在……的时候首字母填空（连词）做题思路：1.找出关键词汇2.判断主从句的关系3.选择正确的连词Homework:•1.复习连词的用法•2.做卷子上剩余的练习