人教版八年级英语上册第十单元IF引导的条件状语从句PPT精品文档

1、1,If 引导的条件状语从句,If you re happy and you know it Clap Your handsIf you re happy and you know it Clap your handsIf you re happy and you know itNever be afraid to show itIf you re happy and you know it Clap your handsIf you re happy and you know it Stomp your feetIf you re happy and you know it Stomp yo

2、ur feetIf you re happy and you know itNever be afraid to show itIf you re happy and you know it Stomp your feetIf you re happy and you know it Wink your okIf you re happy and you know it Wink your okIf you re happy and you know itNever be afriad to show itIf you re happy and you know it Wink your ok

3、,2,什么是状语？,He speaks English very well.,You are very beautiful.,（动词）,（形容词）,（程度副词）,主语,谓语,宾语,状语,3,用来修饰动词，形容词，副词以及全句的句子成分，叫做状语。用作状语的通常是副词，介词短语，不定式和从句等。,4,状语从句,在复合句中表示的状语 可以用来修饰谓语（包括非谓语动词）、定语、状语或整个句子。,5,状语从句 分类,1时间状语从句,9结果状语从句,6让步状语从句,8方式状语从句,7比较状语从句,2地点状语从句,3原因状语从句,4条件状语从句,5目的状语从句,6,位置：从句可放在主句之前或之后，但是放在

4、主句之前须有逗号隔开,eg:如果我有足够的钱，我就去环游世界。,If 引导条件状语从句,定义：If “如果, 假如” 它引导的句子表示某事发生所需的条件，即“在条件下，某事才能发生”，在句子中充当状语，因此称之为条件状语从句。（ If 引导的条件状语从句表示假如有从句的动作发生，就会有主句动作的发生 ）,If I have enough money, I will travel around the world . =I will travel around the world if I have enough money.,7,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

5、if 是“如果”的意思。 主句一般将来时 ，从句用一般现在时。,8,1. 如果主句是一般将来时，从句则用一般现在时。 If it rains（从句）， I will stay at home. Ill go with you if you dont want to go alone（从句）. 2.如果主句含有must, may, can 等情态动词，从句也要用 一般现在时。 If you drive too fast, you may have an accident. You must stop if the traffic is red. If you finish the homewor

6、k， you can go home 如果你作业做完了就可以回家了。 If you want to lose weight you must/should eat less bread. 如果你想减肥，你必须少吃面包。,9,3. 如果主句是祈使句，从句同样要用一般现在时。 Dont go and play football if you dont finish your homework. Please call me if he comes next Sunday.,10,If 引导的条件状语从句的基本用法:,11,Summary: if 引导的条件状语从句，如果主句是 _,那if引导的从句

7、用_ 表示将来可能发生的动作或存在的状态，也 就是所谓的_,主将从现,一般将来时,一般现在时,12,把下列句子组成主将从现的句子,If she, call me,will I,tell her about it,If she calls me, I will tell her about it.,13,Ifit,not rain,will go hiking, this afternoon,If it doesnt rain, I will go hiking this afternoon,14,Ifshe, not exercise enough,Will heavier,If she do

8、esnt exercise enough, she will be heavier,15,IfI,happy,will I , go shopping,If I am happy, I will go shopping,16,Ifshe, study hard,will get good grades,If she studies hard, she will get good grades,17,If you,eat too much,will have a stomachache,If you eat too much, you will have a stomachahe,18,Summ

9、ary: 含if 条件状语从句中，如果主句用 一般将来时，从句用_表 将来，_原则,主将从现,一般现在时,19,练习,1.We will go to the park if it _(not rain) 2.If you are free, we _(dance) tomorrow 3.You _(have) a great time if you go to the party. 4.If you _(take) the bus to the party, you _(be) late. 5.What _(happen) if they _(have) the party. 6.If we

10、_(ask) people to bring food, they _ (bring) potato chips 7.If she_ (get) up late, she _(miss) the bus. 8.If Tom _(watch) TV every day, he _ (not have) enough time to study.,doesnt rain,will dance,will have,take,will be,will happen,have,ask,will bring,gets,will miss,watches,doesnt have,20,练一练： 1。如果她早

11、点儿起床，就有时间在家里吃早餐 If she_ _a little earlier, shell have time to eat breakfast at home. 2。如果你参加聚会，你将会过得很开心。 If you_ the party ,you_ _ a great time. 3。如果明天下雨，我们将不去野餐 If it _tomorrow, we _ _ for a picnic. 4。如果你经常听英文歌，你将会喜欢英语 If you often _ _English songs, you_ English.,gets up,join will have,rains wont g

12、o,listen to,will like,21,1.If he_ (not, do it ), I_(do) it.,2.If you _ (be) late for school ,my teacher _(be) angry.,are,will be,3 If she_ (win) the prize ,we _(be) happy.,wins,will be,4.If I _ (not, eat )so much ,I _(get) thinner.,5.If you _(tell) them, they _ (not, believe) you.,dont eat,will get,

13、tell,wont believe,6 I _(stay) at home,If it _( rain).,7.If it _( not, rain) ,I _( go) out.,8. we _(play) football, If it is _(sun) .,9.If she _(become) a star ,her parents _ (not,send) her away,10.He _(watch) TV ,if he _(be) free.,will stay,rains,doesnt rain,will go,will play,sunny,becomes,wont send

14、,will watch,is,doesnt do,will do,22,1.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. 6.I want to know if he _(come) tomorrow, i

15、f he _(come), I _(give) the massage to him.,goes,will have,stops,have,wont get,do,comes,will come,will give,23,I _(record) the CD for you tomorrow. Does she often _(lend) money to her brother? The snake _(not appear) if you make noise. In the final exam, I _(get) good marks.,will record,lend,wont ap

16、pear,will get,24,2.Youmay _ (pass)theexamifyou_ (study)hard.,rains,will stay,pass,study,3. If you want to record, _(press) the red light.,press,1.If It_ (rain) tomorrow, I _(stay) at home.,Fill in the blankets with the proper form,25,用括号内所给词的正确形式填空,1.If the rain _(stop) tonight, we will go to the ci

17、nema. 2.Ill buy a computer if I _(have) enough money. 3.You _(not get) nervous if you _(do ) enough exercise. 4.If she _ (be) kind to me , I _(not argue) with her. 5.I want to know if he _(come) tomorrow, if he _(come), I _(give) the massage to him.,stops,have,wont get,do,is,wont argue,will come,comes,will give,26,If Im ill, _.,I will see