1、Unit 10 If you go to the party, youll have a good time!,I think Ill take the bus to the party. If you do, youll be late. I think Ill stay at home. If you do, youll be sorry. What will happen if they have the party today? If they have it today, half the class wont come. Should we ask people to bring

2、food? If we ask people to bring food, theyll just bring potato chips and chocolate.,Read the sentences,I will have a good time tomorrow.,I will go to the party tomorrow.,If I go to the party tomorrow, Ill have a good time.,合并,if引導(dǎo)一個(gè)條件狀語(yǔ)從句 當(dāng)主句是一般將來(lái)時(shí)時(shí), if引導(dǎo)的從句必須用 現(xiàn)在時(shí)來(lái)表示將來(lái)可能發(fā)生的動(dòng)作或存在的狀態(tài)。,Grammar Focus:

3、if 條件句,在英語(yǔ)里, 當(dāng)句子的主句為將來(lái)時(shí)態(tài)時(shí), 它所引導(dǎo)的 時(shí)間狀語(yǔ)從句和條件狀語(yǔ)從句都使用一般現(xiàn)在時(shí)來(lái) 表示將來(lái)時(shí)間, 這在英語(yǔ)里被稱為“主將從現(xiàn)”。 主句的將來(lái)時(shí)態(tài)并不僅限于我們這一課里所學(xué)習(xí)到 的will動(dòng)詞原形構(gòu)成的一般將來(lái)時(shí), 還包括be going to動(dòng)詞原形、be doing所表示的一般將來(lái)時(shí) 以及我們以后會(huì)學(xué)到的其它的將來(lái)時(shí)態(tài)。例如:,What is he going to do when he grows up? 他長(zhǎng)大了想干什么？ We are leaving for Amoy tomorrow if it doesnt rain. 如果明天不下雨, 我們就去廈門。

4、 We will buy that microwave next week if its price keeps going down. 如果價(jià)格持續(xù)下降, 下個(gè)禮拜我們就買那臺(tái)微波爐。,If +, Ill / youll + ,條件,結(jié)果,For example: If you study, Ill be happy. wear jeans to school , youll be sorry. get up late, youll be late. eat too much, youll be fat. wash your clothes yourself ,1. Structure,這里

5、if所引導(dǎo)的是真實(shí)條件句(real conditional), 即所 假設(shè)的條件有可能成為現(xiàn)實(shí), 表達(dá)假定所假設(shè)的條件 實(shí)現(xiàn)時(shí)會(huì)出現(xiàn)的情況或會(huì)采取的行為。有時(shí), 我們 可以使用并列結(jié)構(gòu)的祈使句來(lái)表達(dá)這種類型的條件句。 e.g. If you set your alarm clock, you wont oversleep. 如果你上鬧鐘, 你就不會(huì)睡過頭了。 Set your alarm clock, and you wont oversleep.,If you give him an inch, he will take a mile. 他會(huì)得寸進(jìn)尺。 Give him an inch, a

6、nd he will take a mile. If you dont give him some food, he will starve. 如果你不給他一點(diǎn)吃的, 他就會(huì)餓死。 Give him some food, or/else he will starve.,(1)條件狀語(yǔ)從句通常由連詞if引導(dǎo), 意為“如果、假如”, 主句不能用be going to表示將來(lái), 而應(yīng)該用shall、will。e.g. If you leave now, you are never going to regret it. (錯(cuò)誤) If you leave now, you will never re

7、gret it. (正確) (2) if “如果”, 引導(dǎo)條件狀語(yǔ)從句, 主句用一般將來(lái)時(shí)， 從句則用一般現(xiàn)在時(shí)，如：If it rains tomorrow, I shant climb the hills.,2. 用法,注意: 賓語(yǔ)從句中的if與條件狀語(yǔ)從句if的區(qū)別。 賓語(yǔ)從句中的if “是否”相當(dāng)于whether, 引導(dǎo) 賓語(yǔ)從句, 時(shí)態(tài)需根據(jù)語(yǔ)境確定。I dont know if it will rain tomorrow. 我不知道明天是否會(huì)下雨。,在閱讀英文文章時(shí), 我們有可能看到這樣的句子： If my father will give me permission, I sha

8、ll spend a few months abroad. 如果我父親同意, 我將在國(guó)外待幾個(gè)月。 If you will take the trouble to read his letter carefully, you will see what he means. 如果你肯花一些時(shí)間來(lái)認(rèn)真讀他的信，你就會(huì)明白 他是什么意思了。 在if-分句中中用“will動(dòng)詞原形”并不單純表示將來(lái)意義， 這里的will是個(gè)表示“意愿”的情態(tài)動(dòng)詞, 相當(dāng)于be willing to (愿意)。,要注意這種帶“will動(dòng)詞原形”的if-分句在某些場(chǎng)合 是不可以隨便用的, 比如我們可以說(shuō)： If he ge

9、ts my letter in time, hell be able to change his plans. 如果他及時(shí)收到我的信, 他就能改變他的計(jì)劃。 卻不可以說(shuō)成： If he will get my letter in time, hell be able to change his plans.,另外, 在if-分句中還可能使用“would動(dòng)詞原形”的結(jié)構(gòu)， 這種用法還是表示“意愿”, 常用于表示客氣的請(qǐng)求, 這時(shí) 主句動(dòng)詞既可以用will/ shall動(dòng)詞原形, 也可以用would/ should/ could/ might動(dòng)詞原形。如： If you would try Ita

10、lian food, you would like it. 如果你愿意嘗嘗意大利食物, 你會(huì)喜歡它的。 If you would reserve the seats, we would be sure of a comfortable journey. 如果你愿意訂座, 我們將肯定會(huì)有一個(gè)舒適的旅程。,1.如果你不趕快走, 你就會(huì)遲到。 2 .如果你愛你的父母, 你應(yīng)當(dāng)幫他們做做家務(wù)。 3. 如果你更友善一些, 你會(huì)教上很多好朋友。,Exercise,If you dont go soon, youll be late.,You should help do the housework if

11、you love your parents.,You will make lots of friends if you are more friendly.,4.如果你帶外校的朋友來(lái), 老師會(huì)讓他們離開。 5. 如果你不完成作業(yè), 媽媽不會(huì)讓你玩電游。 6. 當(dāng)你看到Bill Gates, 你會(huì)對(duì)他說(shuō)些什么？,If you bring friends from other schools, the teacher will ask them to leave.,If you dont finish your homework, your mother wont let you play com

12、puter games.,What will you say to Bill Gates when you see him?,For more exercises, click here.,1. bedoing形式: 用現(xiàn)在進(jìn)行時(shí)態(tài)表達(dá)將來(lái)， 主要意義是表示按計(jì)劃、安排即將發(fā)生的動(dòng)作， 常用于位置轉(zhuǎn)移的動(dòng)詞, 如go、come、leave， start、arrive等, 也可用于其它動(dòng)態(tài)動(dòng)詞。如： The president is coming to the UN this week. 總統(tǒng)這周將到聯(lián)合國(guó)來(lái)。 We are moving to a different hotel the day

13、 after tomorrow. 我們后天將換一家賓館。,Explanation,在現(xiàn)在英語(yǔ)中, 有相當(dāng)多的動(dòng)態(tài)動(dòng)詞都可以用 現(xiàn)在進(jìn)行時(shí)表示將來(lái)。例如： Dinner is ready. Were having fish for dinner. 晚飯好了, 今晚我們吃魚。 Im spending my holidays in Singapore this year. 今年我要去新加坡度假。 Tom isnt finishing his high school until next year. 湯姆明年才高中畢業(yè)。,advice意為“勸告；建議”是不可數(shù)名詞，不能說(shuō) a advice, 而是a

14、piece of advice,也因?yàn)閍dvice是不可 數(shù)名詞?！皟蓚€(gè)（則）建議”，我們通常說(shuō) two pieces of advice。注意piece要采用復(fù)數(shù)， advice不可數(shù)，但piece可數(shù)。我們也可以說(shuō)為 some pieces of advice一些建議。 如：Can you give me some advice? 你能給我一些建議嗎？,2. Can you give me some advice please?,與advice有關(guān)的一些詞組： ask advice of 向.征求意見, 請(qǐng)教 by sb.s advice 依某人勸告 on sb.s advice 依某人勸

15、告 follow sb.s advice 接受某人意見 give advice 勸告, 忠告,Dear Su Mei, I dont _ (know) what to _ (do) about going to Mikes birthday party tomorrow night. My parents _(think) I should study for my English exam next week. If I_(go) to the party, they _(be) upset. Mike _(tell) us wear nice clothes, but I dont _(h

16、ave) any. If I_(wear) jeans, I _(look) the worst. Also, Im not sure how to _(go) to the party. If I _(walk), it _ (take) me too long. If I _ (take) a taxi, it _ (be) too expensive. Can you give me some advice please?,3a Fill in the blanks with the correct forms of the verbs in brackets.,know,do,thin

17、k,go,will be,tells,have,wear,will look,go,walk,will take,take,will be,3b Complete the sentences using your own ideas.,1.If I get up late tomorrow, _ 2.If I dont finish my homework, _ 3.If I dont get enough exercise, _ 4.I will not have enough time to study if _ 5.I will not make any friends if _,I w

18、ill miss the school bus,my teacher will be angry,I wont be strong,I play computer games all the day.,I always make them upset.,Exercise,Complete the sentence. Use the phrases from the box.,1. Dont talk in class. If you do, the teacher _. 2. Dont watch TV tonight. If you do, you _.,will be late, will

19、 laugh at you, will never stop talking, wont study for your test, will tell you to stop,will tell you to stop,wont study for your test,4. Dont walk too slowly. If you do, you _. 5. Dont wear jeans to dance. If you do, people _. 6. Dont ask about her children. If you do, she _.,will laugh at you,will never stop talking,will be late,1. What _ (happen), if we climb the tree. 2. Could you help me _ (organize) the party games? 3. If it _ (rain) tomorrow. We _ (not go) hiking. 4. If you wear jeans to the party, th