if_條件狀語從句

1、無憂PPT整理發(fā)布無憂PPT整理發(fā)布位置：從句可放在主句之前或之后，但是放在主句之前須有從句可放在主句之前或之后，但是放在主句之前須有逗號隔開逗號隔開eg:如果我有足夠的錢，我就去環(huán)游世界If 引導(dǎo)條件狀語從句 定義：定義：if “如果如果, 假如假如” 它引導(dǎo)的句子表示某事發(fā)生所需的它引導(dǎo)的句子表示某事發(fā)生所需的條件，即條件，即“在在條件下，某事才能發(fā)生條件下，某事才能發(fā)生”，在句子中充當狀語，在句子中充當狀語，因此稱之為條件狀語從句。（因此稱之為條件狀語從句。（ If引導(dǎo)的條件狀語從句表示假引導(dǎo)的條件狀語從句表示假如有從句的動作發(fā)生，就會有主句動作的發(fā)生如有從句的動作發(fā)生，就會有主句動作的

2、發(fā)生 ）If I have enough money, I will travel around the world =I will travel around the world if I have enough money無憂PPT整理發(fā)布If條件句：條件句用于陳述語氣，表示假設(shè)的情況可能發(fā)生，其中 if 是“如果”的意思。 主句主句一般將來時一般將來時 ，從句用一般現(xiàn)在時。，從句用一般現(xiàn)在時。(主將從現(xiàn)主將從現(xiàn)) 構(gòu)成條件從句主句時態(tài)If一般現(xiàn)在時主語shall/will+動詞原形例句If he comes,he will take us to the zoo.無憂PPT整理發(fā)布用法：1

3、. 如果主句是一般將來時，從句則用一般現(xiàn)在時。如果主句是一般將來時，從句則用一般現(xiàn)在時。 If it rains（從句）， I will stay at home. Ill go with you if you dont want to go alone（從句）. 2.如果主句含有如果主句含有must, may, can 等情態(tài)動詞，從句也要用等情態(tài)動詞，從句也要用一般現(xiàn)在時。一般現(xiàn)在時。 If you drive too fast, you may have an accident. You must stop if the traffic is red. If you finish the

4、 homework， you can go home 如果你作業(yè)做完了就可以回家了。如果你作業(yè)做完了就可以回家了。 If you want to lose weight you must/should eat less bread. 如果你想減肥，你必須少吃面包。如果你想減肥，你必須少吃面包。無憂PPT整理發(fā)布 3. 如果主句是祈使句，從句同樣要用一如果主句是祈使句，從句同樣要用一般現(xiàn)在時。般現(xiàn)在時。Dont go and play football if you dont finish your homework.Please call me if he comes next Sunday.

5、無憂PPT整理發(fā)布Thank you無憂PPT整理發(fā)布練一練：1。如果她早點兒起床，就有時間在家里吃早餐 If she_ _a little earlier, shell have time to eat breakfast at home.2。如果你參加聚會，你將會過得很開心。If you_ the party ,you_ _ a great time.3。如果明天下雨，我們將不去野餐If it _tomorrow, we _ _ for a picnic.4。如果你經(jīng)常聽英文歌，你將會喜歡英語If you often _ _English songs, you_ _English.gets

6、 upjoin will haverains wont golisten to will like無憂PPT整理發(fā)布1.If he_ (not, do it ), I_(do) it.2.If you _ (be) late for school ,my teacher _(be) angry.arewill be3 If she_ (win) the prize ,we _(be) happy.winswill be4.If I _ (not,eat )so much ,I _(get) thinner.5.If you _(tell) them, they _ (not,believe)

7、you.dont eatwill gettellwont believe6 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 stayrainsdoesnt rainwill gowill playsunnybecomeswont

8、 sendwill watchisdoesnt dowill do無憂PPT整理發(fā)布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,

9、 if he _(come), I _(give) the massage to him. goes will have stopshave wont getdo comes will come will give無憂PPT整理發(fā)布 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 w

10、ont appear will get無憂PPT整理發(fā)布 2.You may _ (pass) the exam if you _ (study) hard. rainswill stay passstudy 3. If you want to record, _(press) the red light.press1.If It_ (rain) tomorrow, I _(stay) at home.Fill in the blankets with the proper form 無憂PPT整理發(fā)布用括號內(nèi)所給詞的正確形式填空1.If the rain _(stop) tonight, w

11、e will go to the cinema.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. stopshave wont getdo iswont argue w

12、ill come comes will give無憂PPT整理發(fā)布If Im ill,_. I will see a doctorIf Im late,_.I will say sorry 無憂PPT整理發(fā)布If Im hungry,I will_. If Im tired, I will_. eat some foodhave a rest無憂PPT整理發(fā)布 If it rains tomorrow,I_.will watch TV at homeIf it _ tomorrow,_.Ill play basketballdoesnt rainI wont_.play basketball無

13、憂PPT整理發(fā)布1. Fill in the blanks with the words in the box. meeting, teenagers, video, experience1. If my family travels to a new country this summer, Ill send you a letter about my _. 2. Will you watch the _ with me if youre free this weekend?experiencevideo無憂PPT整理發(fā)布3. If the _ stay out too late, thei

14、r parents will worry about them.4. Ill go to the _ if it ends by 5:00 p.m.meeting, teenagers, video, experiencemeetingteenagers無憂PPT整理發(fā)布A: Hi, Sally, _ you _ to the party tomorrow?B: I _ to, but I cant.2. Complete the conversation with words in the box. Some words are used more than once. if, are, w

15、ill, fight, want, sorry, goingaregoingwant無憂PPT整理發(fā)布A: Oh! But _ you dont go to the party, you _ miss all the fun!B: I know, but I got into a _ with my parents.ifwillfightA: Hmm then you should just say _ to your parents. B: I guess youre right. I _ talk to them tonight. sorrywill無憂PPT整理發(fā)布1. it rains all weekend? _ _If it rains all weekend, Ill chat with my friends online and play computer games.3. Use your imagination! What will you do if無憂PPT整理發(fā)布2. theres an English test tomorrow? _ _3. your cousin dec