Enjoy the song【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件 If I am happy, I will smile.If they are happy ,they will sing and dance.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件Section AUnit 5 If you go to the party, youll have a great time !【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件一条牛仔裤一条牛仔裤 a pair of jeans let sb in 让某人进入（来）让某人进入（来）是动副结构是动副结构代词是宾语时必须放在代词是宾语时必须放在中间中间。其反义词为其反义词为let sb out让某人出让某人出去去别让那个男孩儿进来！别让那个男孩儿进来！Dont let the boy in !让他出去！让他出去！Let him out. organize the party games组织聚会游戏组织聚会游戏【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件What will happen tomorrow ?It will be sunny tomorrow.They will play football tomorrow.用用ifif合合并并成成一一句句They will play football if it is sunny tomorrow.If it is sunny tomorrow, they will play football.ifisWill be【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件如果明天下雨，我将弹钢琴。如果明天下雨，我将弹钢琴。If it is rainy tomorrow, I will play the piano. be rainy play the pianoLook at the picture and make up sentences using “if”.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件Exercise healthy如果我锻炼，我将健康。如果我锻炼，我将健康。If I exercise, I will be healthy.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件When do you get up on weekends?(9:00)I get up at 9:00 on weekends. What will happen if you get up at 9:00 this morning ? (If I ,I will)If I get up at 9:00, I will be late.I will be late if I get up at 9:00.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件What will happen if you are late for school?(If I,my teacher will )If I am late for school, my teacher will be angry with me.My teacher will be angry with me if I am late for school. teacher【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件What will happen if your teacher is angry with you?(If my teacher ,I will)If my teacher is angry with me, I will be sad.I will be sad if my teacher is angry with me.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件What will happen if you get up at 9:00 this morning ?If I get up at 9:00, I will be late.If I am late, my teacher will be angry with me.If my teacher is angry with me, I will be sad.If I am sad, I will talk with my best friend.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件if “如果如果”， 引导的条件状语从句引导的条件状语从句1 时态主将从现时态主将从现主句一般将来时，从句一般现在时主句一般将来时，从句一般现在时2 条件状语从句通常由连词条件状语从句通常由连词if引导，意为引导，意为“如果、如果、假如假如”，主句不能用，主句不能用be going to表示将来，而应表示将来，而应该用该用will, shall(主语为第一人称）主语为第一人称） 1. If she ( come) here tomorrow, I (ask) her to call you. 2. If we (work) harder, we (get) better grades.comeswill askworkwill get【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件What will happen if you sleep in class?If I_ in class, I _ (get) bad grades.I will get bad grades if I sleep in class.sleep will get 温馨提示温馨提示: : if if引导的引导的条件状语从句既可放条件状语从句既可放在主句前在主句前, ,也可放在主也可放在主句后句后. .从句置于主句前从句置于主句前时时, ,须有逗号与主句隔须有逗号与主句隔开开, ,反之则不用逗号反之则不用逗号. .【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件If I _computer games on weekdays , I _(be) very tired in class.I ll be very tired in class if I play computer games on weekdays.What will happen if you play computer games on weekdays?play will be【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件If I _ hard, I_ (get) good grades.I will get good grades if I study hard.What will happen if you study hard?studywill get【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件(1 ) if will she, call me, I, tell her about itIf she calls me, I will tell her about it.(2) he,have free time, go to Shanghai ,(3) I ,have much money ,buy a big houseIf he has free time, he will go to Shanghai.If I have much money,I will buy a big house.Make up sentences using “if”.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件A: I think I am going to the party.B: If you do, you will have a great time.=If you go to the party, you will have a great time.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件1a Look at the pictures. Then match the statements with responses.1. I think Im going to go to the party with Karen and Ann.2. I think Im going to wear jeans to the party.3. I think Im going to take the bus to the party.4. I think Im going to stay at home.a. If you do, the teachers wont let you in.b. If you do, youll be late.c. If you do, youll be sorry.d. If you do, youll have a great time.牛仔裤牛仔裤1b Listen. Were your answers to activity 1a correct?【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件A: What are you going to do ?B I think Im going to stay at home.A: If you do, youll be sorry.1c【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件A: What are you going to do tomorrow?B: I think Im going to .A: If you do, you will.stay at homeboredwork until nighttiredhang out with friends/have a good time【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件2a Listen and number these phrases in the order you hear them. （听对话，按听到词组的顺序编号。）（听对话，按听到词组的顺序编号。）a. study for their testsb. help me organize itc. too earlyd. make some foode. Saturday afternoonf. play party games123456AndreaMark【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件2b: listen again and answer the questions.What will happen if they have the party today?What will happen if they have the party tomorrow?What will happen if they watch a video at the party?What is Mark going to organize?What is Andrea going to do?Mark is going to organize the party games.Some students will be bored.Students will leave early to study for their test.Half the class wont come.Andrea is going to make some food.MarkAndrea【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件 Half the class wont come. 一半的同学将不会来。一半的同学将不会来。half的用法：的用法：1 half adj. 一半的，一般要放在冠词、物主代词或指示一半的，一般要放在冠词、物主代词或指示代词之前。半小时代词之前。半小时_“half + 名词名词” 作主语时，谓语动词的单、复数形式由作主语时，谓语动词的单、复数形式由所接名词的单、复数形式来决定，名词是中心词。所接名词的单、复数形式来决定，名词是中心词。 Half the apples_ bad. 这些苹果中有一半是坏的。这些苹果中有一半是坏的。Half the apple _ bad. 这个苹果一半是坏的这个苹果一半是坏的 2 Half 还可作名词，意为还可作名词，意为“半，一半半，一半”其复数形式为其复数形式为_.“个半个半”可表达为可表达为“数词数词 + 名词名词 + and a half”或或“数词数词 + and a half + 名词（复数名词（复数）”。例如：。例如：三个半小时三个半小时 three hours and a half three and a half hours half an hour areishalves【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件2c Pairwork Look at the chart and role play the conversation between Andrea and her friend.A: OK, when is a good time to have the party?B: Lets have it today.A: If we have it today, half the class wont come.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件When is a good time to have the party? 举行聚会的最佳时间是在什么时候？举行聚会的最佳时间是在什么时候？ to have the party是动词不定式作后置定语，修是动词不定式作后置定语，修饰名词饰名词time不定式作定语时，常放在被修饰的词语之后不定式作定语时，常放在被修饰的词语之后. Would you like something _?A. drink B. drinking C. to drink D. drinks . I have a lot of homework _.A. do B. doing C. did D. to doCD【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件ExercisesFill in the blanks with the words given.1.The students will go to the Great Wall if it _ (not rain) tomorrow.2.If he _ (not do) his homework, hell be late.3.If she likes it, she _ (read) it soon.4.If you play computer games on weekdays, you _ (be) tired.5.If you watch TV tonight, you _ (not study) for the test.doesnt raindoesnt dowill readwill bewont study【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件I dont know if my brother_ (come) tomorrow. If he_ (come), Ill be happy.注意宾语从句中的注意宾语从句中的if与条件状语从句与条件状语从句if的区的区别。宾语从句中的别。宾语从句中的if“是否是否”相当于相当于 whether，宾语从句通常位于主句之后。引，宾语从句通常位于主句之后。引导宾语从句，时态需根据语境确定。导宾语从句，时态需根据语境确定。我不知道明天是否会下雨。我不知道明天是否会下雨。 I dont know if it_ (rain)tomorrow. will comecomes will rain【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件 用所给词的正确形式填空。用所给词的正确形式填空。1.If you _ (be) late, the teacher will be angry.2.We dont know if it _ tomorrow (snow).3.He _(become) a soccer player if he works hard.4. You _(be) famous if you sing well.arewill snowwill becomewill be5 Half of these bananas _(be) bad.6 Half of the boys _(like) basketball.arelike【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件Make a surveyAsk three students: What will you do if we have no lessons tomorrow？Then make a report like this: If we have no lessons tomorrow, Li Yan will go to the movies, .NameThings to doLi YanShe will go to the movies if we have no lessons tomorrow.【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件Dear Jenny, Thanks for inviting（邀请）（邀请） me to the party. Of course present, you are happy. I hope it wont rain that day. Because if it wont rain, my little son will come, too. If he comes, you arent disappointed, he is really funny. OK, see you on the party.Yours, will bedoesntgivewont beIll go to the party. And I think if I will give you a Please help me correct the sentences.Rosev Correct and Write（礼物）（礼物）【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件Summary 条件状语从句条件状语从句1.常用关联词常用关联词if（如果）（如果）进进行引导。行引导。 2. if引导的状语从句可放引导的状语从句可放在主句前，也可在主句后在主句前，也可在主句后3.主句谓语动词是一般将主句谓语动词是一般将来时，从句时态通常用来时，从句时态通常用一一般现在时般现在时。【最新】八年级英语下册 Unit5 Section A课件 人教新目标版 课件