《Unit6Grammar课件.ppt》由会员分享，可在线阅读，更多相关《Unit6Grammar课件.ppt（35页珍藏版）》请在三一文库上搜索。
1、Welcome to our class,Grammar,Conditional Sentences,if引导的条件状语从句,神岗二中 曾雪芳,English song: If you are happy,What will you do if you are happy?,If I am happy, I will smile. If I am happy, I will sing. If we are happy, we will dance.,What will you do if it is sunny?,If it is sunny, I _ football.,will play,
2、What will you do if it is sunny?,If it is sunny, I _ fishing.,will go,What will you do if it is hot in summer?,If it is hot in summer, I _ swimming.,will go,What will you do if it is hot in summer?,If it is hot in summer, I _ ice cream.,will eat,Will you play football if it rains?,No, I wont. I _foo
3、tball if it rains.,wont play,Will you go fishing if it rains?,No, I wont. I _fishing if it rains.,wont go,What will you do if it doesnt rain?,I _ a trip if it doesnt rain.,will take,What will you do if it doesnt rain?,I _ a picnic if it doesnt rain.,will have,What will happen if they study hard?,The
4、y _ (play) the guitar well if they_ (study) hard.,study,will play,What must you do if the traffic lights are red? We _ if the traffic lights are red.,must stop,Read the sentences and work out the rule. 1.If I am happy, I will smile. 2.If it is sunny, I will play football. 3.If we are happy, we will
5、dance. 4.They will play the guitar well if they work hard. 5.I wont go fishing if it rains. 6.We must stop if the traffic lights are red.,Conditional sentences,If I am happy， I will smile.,The if-clause （if从句）talks about a possible action(可能的动作).,The main clause (主句)talks about the likely result（可能的
6、结果）.,we can also put the if-clause_(before, after) the main clause.,I will smile if I am happy.,Main clause（主句）,if-clause（if从句）,after,Work out the rule,The verb in the if-clause is in (the simple present tense现在时/the simple future tense将来时). The verb in the main clause is in (the simple present tens
7、e现在时/the simple future tense将来时).,if 引导的条件状语从句,1.if表示 “_”的意思， 引导条件状语从句，表示假如有从句的动作发生就（不）会有主句的动作发生。 if 的条件句位置灵活，可直接放在主句后面， _（用/不 用）逗号隔开（例4、5、6）。 ；当if引导的从句放在主句前时，_（用/不 用）逗号隔开两个句子（例1、2、3）。,如果,不用,用,2.时态：主句用_时，if引导的条件状语从句用_时表示将来意义,简称“主将从现” 。 例： I wont go fishing if it rains. 一般将来时： 一般现在时：,一般将来,一般现在,will+V
8、原形, ,be (am, is, are),V原形,Vs/es,3. 如果主句中含有can, may, must等情态动词，从句也要用_时。 例： We must stop if the traffic lights are red.,一般现在,if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，主句多用将来时。,顺口溜,If you have some problems, you can go to your parents or your friends for help. And if you ask them, they will give you
9、 some advice. Now lets find out how people give advice if someone has problems. Do the exercises on the handouts(学案).,Exercises,( ) 1. I _ the CDs to you if I have time tomorrow. will return B. returned C. have returned D. return ( ) 2. He will help me with my maths if he _ free. A. be B. was C. is
10、D. will be,A,C,从现,主将,主将,从现,( ) 3.I wont watch the TV play if my father _ me do my homework. A. let B. will let C. wont let D. lets ( ) 4. If he _ hard, he will get good grades. A. study B. studies C. will study D. studied,D,B,( ) 5. If you_， I will go, too. A. goes B. go C. will go D. is going ( ) 6
11、.Im waiting for my friends. If they_ , Ill go shopping by myself. come B. will come C. dont come D. didnt come,B,C,( ) 7.He _ finish the work if you _ help him. A. isnt, dont B. couldnt, wont C. cant, dont D. doesnt, wont ( ) 8 .If it _ sunny tomorrow, I _boating. is, go B. will be ,go C. is, will g
12、o D. will be, will go,C,C,( )9.-What will you do if it_ tomorrow. -Ill stay at home and watch TV. rain B. rains C. will rain D. is raining ( ) 10. If it _ rain tomorrow, we will go swimming. wont B. doesnt C. isnt D. dont,B,B,根据中文意思完成句子。 1. 如果你穿上大衣，你就不会觉得冷。 You _ _ cold if you _ _ your coat. 2. 如果你跑
13、快点，你就不会迟到。 You _ _ late if you_ faster.,wont feel,put on,wont be,run,3. 如果他问我，我会告诉他答案。 If he _ me, I _ _ him the answer. 4. 如果她参加这个聚会，她会过得很 开心。 If she _ _ in the party, she _ _ a good time.,asks,will tell,takes part,will have,挑战中考： ( ) 1. _ we continue(继续) making too much rubbish, the problem will o
14、nly get worse. (2013年广州中考题) A. When B. Whether(是否) C. Why D. If,D,( ) 2. If you _ carefully, you _ the report well. (2009年广州中考题) A. will listen, will be understand B. will listen, understand C. listen, will understand D. listen, understand,C,3. 如果你晚上早些睡，早上就不会感觉 疲惫。 (2010年广州中考题) _ you go to bed earli
15、er at night, you wont _ _ in the morning.,If,feel tired,Homework: Review conditional sentences. (2)Finish the exercises in English Weekly. (第18期第23版) (3) Write some sentences using “If I have a lot of money”, try to write as many as you can. e.g. If I have a lot of money, I will buy a lot of books.,