if條件狀語(yǔ)市公開(kāi)課金獎(jiǎng)市賽課一等獎(jiǎng)?wù)n件

1、If 引導(dǎo)條件狀語(yǔ)從句 第1頁(yè)一、定義二、詳細(xì)使用方法三、練習(xí)四、拓展五、總結(jié)目錄：第2頁(yè)定義：if “假如, 假如” 它引導(dǎo)句子表示某事發(fā)生所需條件，即“在條件下，某事才能發(fā)生”，在句子中充當(dāng)狀語(yǔ)，所以稱之為條件狀語(yǔ)從句。（ If引導(dǎo)條件狀語(yǔ)從句表示假如有從句動(dòng)作發(fā)生，就會(huì)有主句動(dòng)作發(fā)生 ）一、什么是條件狀語(yǔ)從句？第3頁(yè)位置：從句可放在主句之前或之后，不過(guò)放在主句之前須有逗號(hào)隔開(kāi)eg:假如我有足夠錢，我就去周游世界If I have enough money, I will travel around the world =I will travel around the world if

2、I have enough moneyIf it rains tomorrow ,I will stay at home.從句主句第4頁(yè)二、條件狀語(yǔ)從句使用方法If I get up late, I will be late for school.If I dont finish my homework, I wont go to bed.If you join the band(樂(lè)隊(duì)), you will be famous.Lets look at some sentences first第5頁(yè)使用方法1：If條件句：條件句用于陳說(shuō)語(yǔ)氣，表示未來(lái)可能性，能力， 允諾，命令，要求，請(qǐng)求，提議

3、時(shí)，假設(shè)情況可能發(fā)生，其中 if 是“假如，假如”意思。主句普通未來(lái)時(shí) ，從句用普通現(xiàn)在時(shí)?！爸鲗默F(xiàn)”標(biāo)準(zhǔn)。 構(gòu)成條件從句主句時(shí)態(tài)If普通現(xiàn)在時(shí)主語(yǔ)shall/will+動(dòng)詞原形例句If he comes,he will take us to the zoo.第6頁(yè) 使用方法2： 假如主句含有must, may, can 等情態(tài)動(dòng)詞，從句也要用 普通現(xiàn)在時(shí)。 You must stop if the traffic is red. 假如是紅燈，你必需停下來(lái)。 If you finish the homework， you can go home 假如你作業(yè)做完了就能夠回家了。 If you

4、want to lose weight, you must/should eat less bread. 假如你想減肥，你必須少吃面包。第7頁(yè)使用方法3： 假如主句是祈使句，從句一樣要用普通現(xiàn)在時(shí)。Dont go and play football if you dont finish your homework.假如沒(méi)有完成家庭作業(yè)，就不要去踢足球。Please call me if he comes next Sunday.假如他下周日來(lái)話，請(qǐng)打電話給我。第8頁(yè)使用方法4：表示科學(xué)常識(shí)、事實(shí)、 經(jīng)常性動(dòng)作或傾向 自動(dòng)會(huì)發(fā)生事If 從句 （普通現(xiàn)在時(shí)），主句 （ 普通現(xiàn)在時(shí) ）。1.If w

5、ater is heated, it turns to steam. 假如水加熱，就會(huì)蒸發(fā)。2. If people dont get enough sleep, their thinking ability is reduced .假如人們睡眠不足，他們思維能力就會(huì)下降。3. If I need a haircut, I usually go to the barbers near my house.假如我要剪頭發(fā)，我通常是去附近那一家剪發(fā)店。4. People often dont go out on Sundays if it rains.假如周日下雨話，人們普通不出門。第9頁(yè)三、練一練

6、：1。假如她早點(diǎn)兒起床，就有時(shí)間在家里吃早餐 If she_ _a little earlier, shell have time to eat breakfast at home.2。假如你參加聚會(huì)，你將會(huì)過(guò)得很開(kāi)心。If you_ the party ,you_ _ a great time.3。假如明天下雨，我們將不去野餐If it _tomorrow, we _ _ for a picnic.4。假如你經(jīng)常聽(tīng)英文歌，你將會(huì)喜歡英語(yǔ)If you often _ _English songs, you_ _English.gets upjoin will haverains wont go

7、listen to will like第10頁(yè)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) you.dont eatwill gettellwont be

8、lievedoesnt dowill do用所給單詞正確形式填空：第11頁(yè)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 _ (be) proud of her. 10.He _(watch) TV if he _(be) free.will stayrainsdoesnt rainwill gowill playsunnybecomeswill

9、bewill watchis第12頁(yè)四、拓展除了if之外，是否還有其它連詞能夠引導(dǎo)條件狀語(yǔ)從句呢？ 最常見(jiàn)還有：so/as long as只要 unless除非，若不第13頁(yè)1. as ( so ) long as. “只要， 就 ” 表示 一個(gè)前提條件Youll succeed as (so ) long as ( if only ) you try hard.只要你努力，你就會(huì)成功。As long as you are happy, it doesnt matter what you do.只要你高興，你做什么都沒(méi)相關(guān)系You may borrow my books as long as

10、you keep it clean.只要你保持書(shū)清潔，你就能夠借我書(shū)。第14頁(yè)2unless 除非；若不；假如不；除非在時(shí)候 You will fail to arrive there in time unless you start earlier假如你不早點(diǎn)動(dòng)身，你就不能及時(shí)趕到那兒。 Unless bad weather stops me，I go for a walk every morning除非天氣不好，我天天早晨都要去散步。 I wont loan you unless you are in extreme need of money若不是你急需用錢，我不會(huì)借錢給你。 第15頁(yè)中

11、考真題：（安徽）1.If the rain _(stop) tonight, we will go to the cinema.（黑龍江）2.Ill buy a computer if I _(have) enoug money.（內(nèi)蒙古）3.You _(not get) nervous if you _(do ) enough exercise. （浙江）4.If she _ (be) kind to me , I _(not argue) with her. stopshave wont getdo iswont argue 第16頁(yè)分析試題特點(diǎn)及做題思緒：1.考連詞-做題思緒：分析句子-

12、 判斷關(guān)系- 選擇正確連詞：1.You wont get nervous _you do enough exercise.A.if, B, unless C, whether2. _ you hurry up, you will miss the early bus.A. if, B, unless C, whether分析試題特點(diǎn)及做題思緒：第17頁(yè) 2.Youmay _ (pass)theexamifyou_ (study)hard. 2.考時(shí)態(tài)-做題思緒：認(rèn)字- 判斷語(yǔ)境提供時(shí)態(tài)特點(diǎn)-選擇正確時(shí)態(tài)A. rain ,stay B. rains, stay C. rains, will st

13、ay D. rain ,will stay 1.If It_ (rain) tomorrow, I_(stay) at home.A.pass,study B.will pass ,study C.pass,will study D.passes ,study第18頁(yè)If Im ill,_. I will see a doctorLook and sayIf Im late,_.I will say sorry 條件狀語(yǔ)從句在日常生中應(yīng)用：第19頁(yè)If Im hungry,I will_. If Im tired, I will_. Look and sayeat some foodhave a rest第20頁(yè) If it rains tomorrow,I_.will watch TV at homeIf it _ tomorrow,_.Ill play basketballdoesnt rain第21頁(yè) if 條件句不普通, 幾個(gè)關(guān)鍵點(diǎn)記心間;