if条件状语从句好用公开课获奖课件.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,Language,If sentences,If 引导条件状语从句,第1页,If you,cool,water,it,turns,into ice.,if,clause,从句,main,clause,主句,If sentences,if,引导条件状语从句,第2页,1.If you heat metal,it melts.,假如把金属加热，它就会融化,。,2.Water turns into ice if you cool it.,假如你冷却水，它就会变成冰,。,if clause,从句,main clause,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,第3页,If you drop a glass,it breaks,.,If you heat ice,it melts,.,If you stand in the rain,you get wet,.,主句和从句都用_(时态),由于if引导条件句说是_,一般目前时,客观事实/普遍现象,第4页,Actions with definite results,读如下例句，试着自己总结if 使用措施：,1.If you heat metal,it melts.,假如把金属加热，它就会融化。,2.Water turns into ice if you cool it.,假如你冷却水，它就会变成冰。,3.If you stand in the rain,you get wet.,假如你站在雨里，就会淋湿。,4.If you drop a glass,it breaks.,假如你把玻璃杯掉在地上，它就会碎。,第5页,由例句我们可以懂得：,假如if引导条件句谈论是一种_ 时，主句谓语动词便不用shall/will+动词原形，而直接用_时动词形式。,真理/客观事实,一般目前,第6页,Actions with Definite Results,Water _(turn)into ice if you _(cool)it.,If you _(stand)in the rain,you _(get)wet.,turns,cool,stand,get,第7页,-b,-d,-g,-a,-h,-c,-f,-e,Exercise A1,第8页,1.If you _water.,2.A balloon _ it.,3.If you _water.,4.Metal _it.,5.Wood _water.,6.A glass_ it.,heat ice,it turns into,bursts if you stick a pin into,cool steam,it turns into,melts if you heat,floats if you put it into,breaks if you drop,Exercise A2,第9页,Actions with possible results,读如下例句，总结if 使用措施：,1.If he runs,hell get there in time.,假如他跑步去，就会及时赶到那。,2.He will help you if you ask him.,假如你请他帮忙，他会帮你。,3.If you fail in the exam,you will let him down.,假如你考试失败了，你会让他失望,4.If you get up late,you will be late for school.,假如你起床晚了，上课就会迟到。,第10页,由例句我们可以懂得：,在if 引导条件状语从句中，假如从句谈论是一种有也许发生事实以其产生有关成果，从句用_,主句用_.,一般目前时态,一般未来时态,(主将从现),第11页,I _(stay)at home if it _(rain)tomorrow.,If he _(not e),I _(go)swimming alone.,will stay,rains,doesnt e,will go,Actions with Possible Results,第12页,If you get up late,you will be late for school.,Look and say,get up late,late for school,第13页,If the telephone rings,I will answer it.,Look and say,ring,answer,第14页,If I,have,a lot of money,I,will,buy a big house.,Look and say,a lot of money,a big house,第15页,hard-working,If she,is,hard-working,she,will,get good grades.,get good grades,Look and say,第16页,go fishing.,If it is sunny this Sunday,Ill go fishing.,Look and say,sunny this Sunday,第17页,P105 B,William has five problems,Give him some advice from column A and B,1 I sometimes forget to take the right book to school.,If you check your timetable every night,youll know which books to take.,第18页,一、判断正误，假如有误，请改正,1.If you will do more exercise this summer,you will be very fit.,2.The candle burns,if you light it.,will do do,把逗号去掉,第19页,3,.I will build many schools for the poor children if I win a billion dollars.,4.If you freeze water,it will turn into ice.,5.My uncle visits the museum if he will have time.,对旳,will turn turns,visits will visit,will have has,第20页,If,两个意思:,If:,“假如”,“与否”,引导条件状语从句,引导宾语从句,I dont know if he will e tomorrow.,I will go to the cinema,if,it,doesnt rain,.,主现从现/主将从现,if可用未来时,第21页,Betty will visit the History Museum if it _(rain)tomorrow.,Ben wants to know if it_(be)fine tomorrow.,If 引导条件状语从句不用未来时，意思为“假如”。,If 引导宾语从句可以用未来时，意思为“与否”。,doesnt rain,will be,与否,假如,第22页,Exercises:,He will help me with my maths if he _ free.,A was B will be C would be D is,I dont know_ he will e tomorrow._ he es,Ill tell you.,A if;Whether B whether;Whether,C if;That D if;If,3.Please tell her my telephone number if she _(want)to know.,wants,D,D,第23页,4.Will you e and stay with us for a while if you _(finish)doing your homework?,Wang doesnt know if there _(be)an English evening next week.,Mike asked me if we _(ask)any questions the next class.,We are going for pi ic tomorrow.Ill call Wendy to make sure_.,A why to start B when to start,C what to start D which to start,would ask,finish,will be,B,第24页,8.-Would you please tell me_ next?,-Think it over.Youll find a good way.,A when to do B how to do,C what to do D where to do,9.I dont know if my uncle _.If he _,I will be very happy.,A es;will e B will e;will e,C es;es D will e;es,10.Either you or I _ going to Shanghai.Only one person may go there.,A are B were C am D was,C,D,C,第25页,()11.If it _ sunny tomorrow,I _ boating.A.is go B.will be,go,C.is,will go D.will be,will go,()12.-what will you do if it _ tomorrow,-Ill stay at home and watch TV.A.rain B.rains,C.will rain D.is raining,C,B,第26页,()13.If he _,I _ him the time.,A.es,tell B.will e,will tell,C.es,will tell D.will e,tell,()14.If it _,it _cold.,A.snows,will be B.snows,is,C.will snow,will be D.will snow,is,()1 5.If you _a stone into water,it _.,A.put,sinks B.put,will sink,C.will put,sinks D.will put,will sink,C,B,A,第27页,11.He_(help)me with my maths if he _(be)free.,12.I dont know if Jim _ tomorrow.If he _,I will be very glad.(e),13._(tell)her my telephone number if she _(want)to know.,14.If it _(be)sunny tomorrow,I _(go)boating.,15.If you _(boil)water,it _(turn)into steam.,16.You can _(travel)around the world if you _(have)money.,will help,is,will e,es,Tell,wants,is,will go,boil,turns,travel,have,第28页,Translate the following sentences:,1.假如你请他帮忙,他会帮你。,If you ask him,he will help you.,2.假如你考试不及格,你会让他失望。,If you fail in the exam,you will let him down.,3.假如你作业做完了就可以回家了。,If you have finished the homework，you can go home,4.假如熊陷入危险，它们就袭击人。,If bears are in danger,they attack people.,5.假如我早早地到那里，我就可以快点看病。,If I get there early，I can see the doctor quickly.,第29页,翻译下面句子。,1.假如明天不下雨话，我就和同学们去动物园。,2.假如周六你去购物话，我就去。,If it doesnt rain tomorrow,I will go to the zoo with my classmates.,I will go shopping on Saturday,if you go.,Test yourself,第30页,3.假如也许话，我就去火车站接你。,4.假如你想减肥，就锻炼身体吧。,If possible,Ill meet you at the railway station.,Take some exercise if you,want to be thinner/lose weight.,Test yourself,第31页,