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1、 If you go to the party,you will have a great time!1 If it is cloudy this weekend,they will go fishing If it isWhat will they do this weekend?If it is sunny this weekend,they will play volleyball.you _.(tired)will be tired your parents _.(be not happy)will not be happyyour eyes _.(hurt)will be hurtI
2、f you play computer games all day.3 If he always _(watch TV),he_(bored).watches TVwill be bored4in the future make a lot of money buy a big houseIf I make a lot of money,I will buy a big house.5If I have enough money,I will travel around the world.6If I study hard,I will go to college.剑 桥 大 学7 If we
3、 work harder,our dreams will come true.8if 引导的条件状语从句时态主将从现主句一般将来时，从句一般现在时例句如果你努力工作，你的梦想将会实现If you work hard,your dream will come true.例句如果明天下雨，我将不出去散步If it rains tomorrow,I wont go out for a walk.大家应该也有点累了，稍作休息大家有疑问的，可以询问和交流 大家有疑问的，可以询问和交流10 If 引导条状语从句时，从句中用一般现在时代替一般将来时。If he _(go)to the movies,he w
4、ont finish his work.goesIf I _(become)a doctor,I can help others.becomeIf we _(have)time,we will go to the park tomorrow.have如果你去，我也去。If you go,I will go.如果明天下雨，请带雨衣。Please take a raincoat if it rains.1.If(如果)引导的条件状语从句,主句用一般将来时,从句用一般现在时.（主将从现）w I wont go by plane if it rains tomorrow.w If you dont h
5、urry,youll miss the train.w 注意:从句放在主句之前或主句之后.如放在主句之前,要用逗号与主句隔开.If 引导的宾语从句,常译为是否,应注意时态变化.I dont know if he will come tomorrow.If 后紧跟的句子叫从句,另一个句子叫主句,主句和从句次序可以互相调换。If you study hard,youll get good grades.Youll get good grades if you study hard.“主将从现”不仅在if 条件句,也用在其它时间状从:（1）until 引导的时间状语从句 The bus wont s
6、tart until everybody gets on.公共汽车直到每人都上车为止，才开动。（2）as soon as（一就）引导的时间状语 Mike will tell you as soon as he comes.Mike 一来就会告诉你。13 no war,the world,more beautiful,If there is no war,the world will be more beautiful.she,not exercise enough,heavierIf she doesnt exercise enough,she will be heavier.1.主将从现If
7、 he cleans the room,he can get$10 from his mother.If I watch TV late,I cant get up early.If you get up late,you must take a bus to school.If you are sad,please talk with us.If you are hungry,please eat some food.Please call me if he comes next Sunday.3.主句是祈使句2.主句含有情态动词15结论:If 引导的条件状语从句中:从句用一般现在时态;主句
8、有三种情况 一般将来时态 含情态动词的 祈使句unless 除非,非不可,表强烈的否定You will fail unless you work harder.你不努力就会失败的。Dont come unless I call you.我不叫你就别来 注意:unless 表示否定,从句的谓语要用肯定式 误:Unless you dont work hard,you will fail.正：Unless you work hard,you will fail.正：If you dont work hard,you will fail.Dear Jenny,Thanks for inviting
9、me to the party.Of course present,you are happy.I hope it wont rain that day.Because if it wont rain,my little son will come,too.If he comes,you arent disappointed,he is really funny.OK,see you on the party.Yours,will bedoesntgivewont beIll go to the party.And I think if I will give you a Please hel
10、p me correct the sentences.Rosev Correct and Write181.用所给词的正确形式填空。1.If you _(be)late,the teacher will be angry.2.He _(become)a soccer player if he works hard.3.You_(be)famous if you sing well.arewill becomewill be19 If they have the party,(他们会玩 得高兴)_ 2.If you get up late,(你会上学迟到)_ 3.If you dont go t
11、o school,(你父母会 担心)_ 4.If we finish our homework on time,(老师会让我们踢球)_ _they will enjoy themselves.you will be late for school.your parents will be worried.our teacher will let us play football.20Exercises The students will go to the Summer Palace if it _(not rain)tomorrow.If he _(walk)to school,hell b
12、e late.If she likes it,she _(read)it soon.If you play computer games on weekdays,you _(be)tired.doesnt rainwalkswill readwill be215.If you _(work)hard,your dream will come true.6.If she _(study)hard,She will go to Beijing University.7.If it _(rainy)tomorrow,I will play the piano.8.If I _(have)much m
13、oney in the future,I will travel all over the world.studies is rainy havework221.Im sure if he _(go)to the party,he_(have)a great time.2.If the rain _(stop)tonight,we will go to the cinema.3.Ill buy a computer if I _(have)enough money.4.You _(not get)nervous if you _(do)enough exercise.goes will hav
14、e stopshave wont getdo 用括号内所给词的正确形式填空5.If she _(be)kind to me,I _(not argue)with her.6.I want to know if he _(come)tomorrow,if he _(come),I _(give)the massage to him.7.If you _(pay)more attention to that,he _(not get)injured.iswont arguewill comecomeswill givewont getpay选择题：1.Who wants to buy the bo
15、ok?Mary_ A.do B.did C.does D.doing 2.They will go to the Great Wall if it _ rain tomorrow.A.doesnt B.wont C.isnt D.dont 3.If he_ here tomorrow,Ill meet him.A.come B.will come C.comes D.came 4.Im going to Guilin for vacation_ A.Good Bye B.Is that true C.Really D.Have a good time 5.If she likes it,she
16、 _it soon.A.read B.reads C.will read D.reading6.If I _much money in the future,I will travel all over the world.A.have B.has C.having D.will have7.If you play computer games on weekdays,you _tired.A.are B.will C.be D.will be 8.If she _ hard,She will go to Beijing University.A.study B.will study C.studies D.is studyingAC DA CC DC