1、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,*,*,Unit 6,TV programmes,Grammar,1,To learn to use,if,and,unless,Objectives,2,Please read the following sentences and try to translate them into Chinese,1.I,will ask,the teacher for help,if,I,dont understand.,2.S
2、he,will be,happy,if,she,joins,the party.,3.,If,you,copy,homework,you,will start,a bad habit.,3,We use,if,to talk about the result of a possible action.We make sentences with,if,like this:,If-clause,(simple present tense),Main clause,(,will/may/might/,+,infinitive),If,you,are a football fan,you,will,
3、not want,to miss this week,s programme,.,If,you,are an,animal-lover,you,may feel,sad about it.,4,Pay attention:,We put a comma after the,if,-clause,when it is the first part of a sentence.,If-clause,(simple present tense),Main clause,(,will/may/might/,+,infinitive),If,you,enjoy,solving mysteries,you
4、might like,this film.,5,1.Diana(will go/go/goes)to Europe if she(will pass/pass/passes)the exams.,2.The graduates(will teach/teach/teaches)in the poor village if the Ministry of Education(will agree/agree/agrees)soon.,3.If there(will be/are/is)a car accident,they(will call/call/calls)110 for help a
5、t once.,Choose the proper words,.,6,What will happen if.?,Millie is thinking about herself,her friends and TV programmes.Complete the sentences with the correct forms of the verbs in brackets.,7,If I _(go,will go)to the Reading,Club this afternoon,I,_(do not have,may not,have)any time to watch TV.,2
6、If Simon_(gets,will get)home late,he _(misses,will miss)his,favourite cartoon.,go,may not have,gets,will miss,8,3.If Amy _(completes,will,complete)all her homework quickly,she _(watches,will watch),the chat show.,completes,will watch,4.If Daniel _(takes,will take),part in the game show,he _,_,(wins
7、might win)a prize.,takes,might win,9,5.If Sandy _(finds,will find)a,programme interesting,she,_(introduces,will,introduce)it to us.,finds,will introduce,10,Work out the rule!,We often use the simple _,(future,present)tense in the,if-clause,.,We,need a _(comma,full stop),after the if-clause when it
8、is the first part,of a sentence.,present,comma,11,Asking about animals,Millie watched a documentary about animals.Help Millie answer her father,s questions with the help of the words in the box.,12,Dad:,What will a bear do if it,s in danger?,Millie:,If a bear(1)_,it(2),_ people.,Dad:,What will a pol
9、ar bear do if it,s,hungry?,Millie:,If a,polar bear,(3)_,it,(4)_ fish f,rom the water,.,attack,catch hunt live protect walk,is in danger,will attack,is hungry,will catch,vt./vi.,攻击,进攻,n,.,北极熊,13,Dad:,What will elephants do if they,re thirsty?,Millie:,If elephants(5)_,they,(6)_ until they find a river
10、Dad:,What will tigers do if they live in the,wild?,Millie:,Tigers(7)_ for their,own food if they(8)_.,attack catch hunt live protect walk,are thirsty,will walk,will hunt,live in the wild,14,Dad:,What will tigers do if they have babies?,Millie:,Tigers(9)_ as a family if,they(10)_.,Dad:,What will ma
11、le wolves do if there,s,danger?,Millie:,Male,wolves(11)_ their,families if there(12)_.,attack catch hunt live protect walk,will live,have babies,will protect,is danger,adj,.,雄性的,15,Please read Part B on page 85,Pay attention to the use of,unless.,16,Using,unless,We can use,unless,to say that somethi
12、ng,can only happen or be true in a,particular situation.,e.g.He won,t come to the party,unless,you invite him.,17,Sometimes we can use,if.not,to replace,unless,.,e.g.,The situation will continue,unless,humans stop hunting them for,their fur and bones.,The situation will continue,if,humans do,not,sto
13、p hunting them,for their fur and bones.,18,e.g.,Unless,it rains tomorrow,we are,going to play football in the park.,If,it does,not,rain tomorrow,we,are,going to play football in the park.,19,The,unless,-clause can come first or after the main clause.,e.g.,Unless,you try your best,you will,not realiz
14、e your dream.,You will be late,unless,you leave,right now.,20,A trip to a film and TV studio,Sandy has prepared some tips for a school trip to a film and TV studio.However,she tore the tips by accident.Help her put the tips back together.Match the two parts of the sentences and write the correct let
15、ters in the blanks.,21,Unless the weather report says it is,going to rain,_,2 We will arrive at the studio around 9:30 a.m.,_,c you will not have to take an umbrella,with you,.,d unless the traffic is very heavy,.,c,d,22,Unless you already know the studio,very well,_,4 You will buy your lunch at the
16、 restaurants in the studio,_,a unless you take your own food with,you,.,f you will travel around it with a tour,guide,.,f,a,23,5 Unless you are tired,_,You will have a chance to see how a TV,programme is recorded,_,b,e,b you will not need to take the minibus in,the studio,.,e unless you have little
17、interest in it,.,24,Work out the rule!,We use the simple _,_,_(future,present)tense in the,unless,-clause,.,present,25,条件状语从句,条件状语从句主要由if或unless引导:,if条件句,1)if条件句:条件句用于陈述语气,表示,假设的情况可能发生,其中if是“如果”,的意思。,e.g.,If it rains,we will,stay at home.,如果下雨我们就待在家里。,Grammar,Summary,26,2)用法:,(1)条件状语从句通常由连词if引导,意为“如
18、果、假如”,主句不能用begoingto表示将,来,而应该用shall,will,。,e.g.,Ifyouleavenow,you,will,neverregretit.,如果你现在离开,你永远都不会后悔。,(2)if“如果”,引导条件状语从句,主句用一般将来时,从句则用一般现在时。,e.g.,Ifitrainstomorrow,I,shan,t,climbthehills.,如果明天下雨,我就不爬山了。,27,(3)主句是祈使句或含有情态动词,从句也用一,般现在时。,e.g.,Pleasecallmeifhecomes,nextSunday.,如果他下周日过来请打电话给我。,注意,:,宾语
19、从句中的if与条件状语从句if的区,别。宾语从句中的if,“是否”相当于whether,引导宾语从句,时态需根据语境确定。如果主句用一般现在时,从句可以根据具体情况选用时态,如果主句用一般过去时,从句必须用过去时,的某种形式。,28,unless,条件句,unless引导的条件句,表示强烈的否定。翻译为“除非”“非不可”。,e.g.Youwillfail,unless,youworkharder.,你不努力就会失败的。,=You will fail,if,you,do not,work harder.,注意,:unless,从句里的谓语只能是肯定,式,因为本身unless表示否定。,29,单项
20、选择。,1.Ifthere_nobuyingandselling,o,fanimals,there_nokillingin,nature.,A.is;will,b,eB.willbe;willbe,C.is;is D.willbe;is,A,Exercises,30,2.I,mwaitingformyfriend.,_,I,llgoshoppingalone.,A.Ifshecomes,B.Ifshewon,tcome,C.Ifshedoesn,tcome,C,31,3.We are going to,play basketball,_ it rains.,A.if not B.when,C.except that D.unless,D,32,4.Eat less food _ you want to put,on weight.,A.if B.unless,C.until D.as soon as,B,33,1.Memorize the new words,expressions and patterns.,2.Finish off some exercises.,3.Prepare Integrated skills.,Homework,34,






