1、1,條件狀語從句“主將從現(xiàn)”,2,1，if意為“如果”,什么是：主將從現(xiàn)？,2，主句是一般將來時，從句要用一般現(xiàn)在時,3，分清！從句：由if引導(dǎo)的句子,3,條件狀語從句主將從現(xiàn),If 引導(dǎo)： 從句-現(xiàn)在時，主句：,Unless引導(dǎo)：=if not,1，將來時（重點(diǎn)?。?2，祈使句、情態(tài)動詞,3，現(xiàn)在時（特殊情況）,4,If sentences,If sb does sth, sb will do sth = sb will do sth if sb does sth,主句（將來時）,從句（一般現(xiàn)在時）,1，if從句-一般現(xiàn)在時，主句-將來時（重點(diǎn)?。?5,If the telephone ri

2、ngs, I will answer it.,If you get up late, you will be late for school.,Look and say,6,If you feel hungry, you should eat something.,If you feel tired, please have a rest.,7,If sentences,If sb does sth, please do sth If sb does sth, sb may/must(情態(tài)動詞) do sth,主句（情態(tài)動詞+do）,從句（一般現(xiàn)在時）,2，if從句-一般現(xiàn)在時，主句-祈使句或

3、情態(tài)動詞,主句（祈使句）,從句（一般現(xiàn)在時）,8,If sentences,If sb does sth, sb/sth does sth = sb/sth does sth, if sb does sth,主句（一般現(xiàn)在時）,從句（一般現(xiàn)在時）,3，if從句-一般現(xiàn)在時，主句-一般現(xiàn)在時（客觀事實）,主語的行為將導(dǎo)致某種必然發(fā)生的結(jié)果時,9,1.Take a fish out of water, die 2.Heat metal, melt,If you heat metal, it melts,If you take a fish out of water, it dies.,Exampl

4、es,10,小結(jié)1If 引導(dǎo)：,從句-現(xiàn)在時，主句：,1，將來時（重點(diǎn)?。?2，祈使句、情態(tài)動詞,3，現(xiàn)在時（特殊情況）,總結(jié)： if條件狀語從句考的頻率比較高，考點(diǎn)有3： 1，if從句的時態(tài) 2，if 表示“如果”和“是否”時態(tài)的區(qū)分 3， 連詞的選擇（if，unless，when.）,11,If there no buying and selling of animals, there ( ) no killing in nature. 【2011陜西】 A. is; will he B. will be; will be C. is; is D. will be; is 2. We wi

5、ll go for a picnic if it_tomorrow. 【2012浙江衢州】 A. doesnt rain B. wasnt rainy C. wont rain D. wasnt raining,中考題型,條件狀語從句,12,3. I dont know if she to my birthday party tomorrow. If she , Ill be very happy. 【2011湖南益陽】 A. comes; comes B. will come; comes C. comes; will come 4. If you _ him tomorrow, pleas

6、e ask him if he _ to work on the farm with us. A. see ; goes B. will see; goes C. will see; will go D. see; will go,中考題型,條件狀語從句,如果,是否,13,條件狀語從句只有if引導(dǎo)一種嗎？,比較： 1，In summer , food goes bad easily, _ it is put in the refrigerator. （2010山西中考） A. until B. if C. unless,2， I dont like bread. I wont eat it,

7、_ I am very hungry. (2009內(nèi)江中考) A. when B. unless C. if,14,Unless sentence,從句一般現(xiàn)在時，主句將來時 但是：與if意思相反！“除非” sb will do sth unless sb does sth,if sb does not do sth,Eg: You will be late for school you now. You will be late for school you now.,unless,leave,dont leave,if,15,1. Well go for a picnic unless i

8、t _ this Sunday .【2012福建福州】 Wish you a lovely weekend. A. rains B. doesnt rain C. wont rain 2. You cant watch TV _ you finish your homework. 【2011內(nèi)蒙古包頭】 A. unless B. if C. while D. as,中考題型,條件狀語從句,16,3. Susan will not arrive at the airport on time, _ she hurries up. (2008河北中考) A. once B. if C. when D. unless,中考題型,條件狀語從句,17,總結(jié)：條件狀語從句主將從現(xiàn),If 引導(dǎo)： 從句-現(xiàn)在時，主句：,Unless引導(dǎo)：=if not,1，將來時（重點(diǎn)?。?2，祈使句、情態(tài)動詞,3，現(xiàn)在時（特殊情況）,18,課后練習(xí)：（練習(xí)全部理解，說明你掌握了今天的重要內(nèi)容啦！）,1,We will play basketball, _ tomorrow. 如果明天不下雨，我們將打籃球。 除非明天下雨，我們將打籃球。 2，Tommy, do you know if Frank _ to the zoo this Sunday if it _