Unit 10 Section A Grammar Focus-3c 课件 2024-2025学年人教版八年级英语上册

Unit 10 If you go to the party, you’ll have a great time! Grammar Focus-3c Section A 1.在听说活动中掌握下列词汇：upset; taxi; advice; get up late; study for my English exam. 掌握句型： —What will happen if they have the party today? —If they have it today, half the class won’t come. I don’t know what to do about going to Mike’s birthday party tomorrow night. Can you give me some advice please? 2. 通过观察Grammar Focus的对话，能够正确找出含有If…will…的句子，通过讨论这些句子的表意功能，能够对事情的结果进行预测。通过小组讨论能够说出if引导的条件状语从句的结构和作用。 3.借助续写故事，让小组内每位同学用if编写一句话，乐于参与各种英语实践活动。 学习目标 Unit 10 Section A Grammar Focus – 3c 2 Look at the pictures and make sentences with “if”. If you go to the party with Karen and Anna, you’ll have a good time. If you wear jeans to the party, the teachers won’t let you in. If you take the bus to the party, you’ll be late. If you stay at home, you will be sorry. Revision 3 Make sentences by using the structure “if” conditional sentences. doesn't rain tomorrow, play football If it doesn't rain tomorrow, I'll play football. I'll play football if it doesn't rain tomorrow. be free tomorrow, play basketball If I am free tomorrow, I'll play basketball. I'll play basketball if I am free tomorrow. finish one's homework, go swimming If I finish my homework, I'll go swimming. I'll go swimming if I finish my homework. Revision 4 What are you going to do this weekend? go camping go to the park play football stay at home do my homework listen to some music watching TV go shopping The weather is very important! sunny rainy cloudy snowy Revision 5 If it is sunny this weekend… If it is sunny this weekend, I will go camping. I will go to the park. I will play football. If it rains this weekend… If it rains this weekend, I will stay at home. I will do my homework. I will listen to some music. Revision 6 Grammar Focus Read the sentences and translate them. I think I’ll take the bus to the party. If you do, you’ll be late. I think I’ll stay at home. If you do, you’ll be sorry. What will happen if they have the party today? If they have it today, half the class won’t come. Should we ask people to bring food? If we ask people to bring food, they’ll just bring potato chips and chocolate. 新 课 探 究 Unit 10 Section A Grammar Focus – 3c 7 Fill in the blanks according to grammar focus. 1. 我想我将会乘公共汽车去参加聚会。 I _____ I’ll take the bus to the ______. 2. 如果你那样做，你将会迟到。If you _____, _____ be late. 3. 我想我将待在家里。I _____ _____ stay at home. 4. 如果你那样做，你将会觉得很抱歉。If you ____, ______ ____ sorry. 5. 如果他们今天聚会，将会发生什么事？ _____ ___ _______ if they _____ the party today? 6. 如果他们今天聚会，班里一半的学生将不会去。 If they ______ the party today, ______ the class _______ come. 7. 我们应当要求人们带食物来吗？ Should we ______ people to ______ food? 8. 如果我们要求人们带食物来时，他们将会只带薯条和巧克力。 ______ we ______ people to bring food, ________ just ______ potato chips and chocolate. do you’ll think party think I’ll do you’ll be What will happen have have half won’t ask bring they’ll bring If ask 新课探究 情境导入 课堂小结 8 Grammar Focus What did you find out? I think I’ll take the bus to the party. If you do, you’ll be late. I think I’ll stay at home. If you do, you’ll be sorry. What will happen if they have the party today? If they have it today, half the class won’t come. Should we ask people to bring food? If we ask people to bring food, they’ll just bring potato chips and chocolate. if引导的条件状语从句的结构和用法。 一般现在时 一般将来时 一、含义：if意为“如果”，引导的从句在复合句中表示条件，做主句的条件状语，被称为条件状语从句，表示假如从句的动作发生，主句的动作就(不)会发生,表示对事情的结果进行预测。 You can pass the exam if you study hard. If it doesn't rain tomorrow, we will go shopping. 新课探究 情境导入 课堂小结 9 You will get good grades if you study hard. 如果你努力学习，就会取得好成绩。 Unless you get up early, you’ll not catch the school bus. If it doesn't rain tomorrow, we will go shopping. 如果明天不下雨，我们将去购物。 You can pass the exam if you study hard.如果你努力学习，你就会通过考试。 二、条件状语从句的引导词。 条件状语从句通常由连词if(如果；假如)，unless(＝if...not, 除非；如果不)，as long as (只要）引导。 三、条件状语从句的位置。 条件状语从句既可以放在主句之前，也可以放在主句之后。如果放在主句之前，要用逗号与主句隔开；如果在主句之后，中间不必用逗号。 新课探究 情境导入 课堂小结 10 四、条件状语从句的时态。 1.由if引导的条件状语从句，如果主句用一般将来时, 从句则用一般现在时，即应遵循“主将从现”的原则， 如：If it rains tomorrow, I shan’t climb the hills. If she comes to see me tomorrow, I’ll be happy. If Sam doesn’t work hard, he will fail his exams. 2. 如果主句含有must /can/may 等情态动词，从句要用一般现在时。 You must stop if the traffic light is red. 3.如果主句是祈使句， 从句也常用一般现在时。 Please stay at home if it rains tomorrow. If you eat bad food, you may fall ill. If you want to win, please work hard. 新课探究 情境导入 课堂小结 11 【拓展】 1. if还可以表示“是否”，相当于whether, 用于引导宾语从句。 I don't know if he come tomorrow. If he comes, I will tell you.(前一个if表示“是否”，后一个if表示“如果”。) 2. unless(相当于if...not, 除非，如果不), as long as(只要)也可以引导条件状语从句。 3.“with+ 宾语或without＋宾语”，有时可以改成条件状语从句。 If there is no water, fish will die. If you don’t work hard, you’ll fail the exam. =You’ll fail the exam unless you work hard. = You can’t drive the car if the door is open. = Fish will die without water. You can’t drive the car with the door open. 新课探究 情境导入 课堂小结 12 =Work hard, or you won’t pass the exam easily. 4.if引导的条件状语从句可以转换为：祈使句＋and＋另一个句子；如果if引导的条件状语从句是否定句，可转换为：祈使句＋or＋另一个句子。 If you work hard, you’ll pass the exam easily. =Work hard, and you’ll pass the exam easily. 新课探究 情境导入 课堂小结 13 Fill in the blanks. 1. If you exercise more, you ______ (be) much healthier. 2. If it ______ (rain) tomorrow, they _________ (not play) soccer after school. 3. You should see a dentist if you _____ (have) a toothache. 4. If he _____ (walk) to school, it ________ (take) him too much time. will be won’t play have walks will take rains 5. If you ________ (not go) to bed earlier, you _______ (feel) tired in the morning. 6. If it __________ (not rain), he ________ (play) basketball with me tomorrow. 7. If Uncle Ian ______ (come), I ________ (call) you up. 8. Please wake me up if he _______ (come) back. doesn’t go will feel doesn’t rain will play comes will call comes 新课探究 情境导入 课堂小结 14 Grammar Focus What did you find out? I think I’ll take the bus to the party. If you do, you’ll be late. I think I’ll stay at home. If you do, you’ll be sorry. What will happen if they have the party today? If they have it today, half the class won’t come. Should we ask people to bring food? If we ask people to bring food, they’ll just bring potato chips and chocolate. if引导的条件状语从句替代词do的用法。 条件状语从句中的do,是替代词，代替上文中的动词短语，为避免重复,条件状语从句常用助动词do(does/did)来替代上文所提到的动作。take the bus to the party, stay at home.上边两句可以写成：If you take the bus to the party, you’ll be late. If you stay at home, you’ll be sorry. 新课探究 情境导入 课堂小结 15 Grammar Focus What did you find out? I think I’ll take the bus to the party. If you do, you’ll be late. I think I’ll stay at home. If you do, you’ll be sorry. What will happen if they have the party today? If they have it today, half the class won’t come. Should we ask people to bring food? If we ask people to bring food, they’ll just bring potato chips and chocolate. 情态动词should的用法。 should为情态动词，意为“应该；应当”，后接动词原形，无人称和数的变化。 新课探究 情境导入 课堂小结 16 （2）should表示要求或命令。 You shouldn’t talk in class. （3）should表示预测或可能。 His school bag should be in the classroom. (4) 基本句式 肯定句：sb. should +动词原形. Maybe he should say sorry. 否定句：sb. shouldn’t +动词原形. You shouldn’t smoke in the hospital. 一般疑问句：Should sb.+动词原形? Should you come here tonight? （1）should意为“应该”，表示劝告或建议。 You should stop smoking. 新课探究 情境导入 课堂小结 17 仿照例子把两句话合成一句话。 Example: a. You think you’re going to visit New York City. b. You will see some tall buildings. → If you go to visit New York City, you’ll see some tall buildings. 1. a. You think you’re going to study English hard. b. You will do better in English. → If you study English hard, you’ll do better in English. 2. a. You think you’re going to eat and drink more. b. You will be fatter. → If you eat and drink more, you’ll be fatter. 3. a. They think they are going to do more exercise. b. Their health will be better. → Their health will be better if they do more exercise. 新课探究 情境导入 课堂小结 18 Fill in the blanks with the correct forms of the verbs in brackets. 3a know do think go will be tells have wear will look go walk will take take will be know; do 句意“我不知道明晚参加迈克的生日聚会的事怎么做？” don’t 后跟动词原形；what to + 动词形式，复合不定式结构。 2. think 本句表达一客观事实，主语parents是复数形式，故用一般 现在时态。句意“我父母认为我应当为下周的英语考试而学习” 。 3. go; will be 本句是含 if 条件状语从句的主从复合句；应遵循主将从现原则。 句意“如果我去参加聚会，他们会很失望。” 4. tells; have 本句为 but 连接的并列句，后半句为一般现在时，故前半句也应是一般现在时，主语 Mike 是第三人称单数形式，故填 tells；don’t 后跟动词原形。 5. wear; will look 本句为含if条件状语从句的主从复合句，应循主将从现原则。句意“如果我穿牛仔，我看起来会很糟糕。” 7. walk; will take 本句为含if条件状语从句的主从复合句，应循主将从现原则。 句意“如果我步行去，将会花费我很多时间。” take; will be 本句为含if条件状语从句的主从复合句，应循主将从现原则。 句意“如果我乘出租车去，又将会很贵。” 。 新课探究 情境导入 课堂小结 19 1.If I get up late tomorrow, ____________________________ 2.If I don’t finish my homework, ____________________________ 3.If I don’t get enough exercise, ____________________________ 4.I will not have enough time to study if ___________________________________ 5.I will not make any friends if ____________________________ I will miss the school bus. my teacher will be angry. I won’t be strong. I play computer games all the day. I always make them upset. Complete the sentences using your own ideas. 3b 新课探究 情境导入 课堂小结 3c Write a story with your group on a piece of paper. The first person begins the story with “I think I will…” The others add sentences with “if”. Pass the paper around twice. Then read the story. I think I will go to the movies tonight. If I go to the movies, I won’t finish my homework. If I don’t finish my homework… Sample 1: If I don’t finish my homework, I won’t do well in my test. If I don’t do well in my test, my parents will be upset. … Sample 2: 新课探究 情境导入 课堂小结 21 1. If I go to the party, they will be upset. upset / ʌp'set/ adj. 难过；失望；沮丧 upset 的常用搭配： ①be upset about sth. 为某事而难过 ②be upset with sb. =be angry with sb. 生某人的气 ③be upset over sth. 对某事忧心忡忡 Language Points Unit 10 Section A (Grammar Focus-3c) 2.Can you give me some advice, please? advice /əd'vaɪs/ n. 劝告；建议，不可数名词 He gave me some useful advice. 他给了我一些有用的建议。 You’d better follow your parents’ advice.你最好听从你父母的建议。 Here is a piece of advice for you. 这儿有一条建议给你。 与advice 有关的短语： ① give sb. some advice 给某人一些建议 ② ask sb. for advice 向某人征求意见 ③ take/follow sb’s advice 听从某人的意见 ④ a piece of advice 一条建议 Language Points Unit 10 Section A (Grammar Focus -3c) I. 用所给词的正确形式填空 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, the teachers_______ (be)angry. 5. Don’t ________ (bring) food to school. 6. We are going to _______ (ride) bikes to school. will happen organize rains won’t go will be bring ride 单击此处添加标题文本内容 新课探究 情境导入 课堂小结 Exercise 24 1. 我想我将会乘公共汽车去参加聚会。 I _____ I’ll take the bus to the ______. 2. 如果你那样做，你将会迟到。 If you _____, _____ be late. do you’ll think party II. 根据课本内容，完成下列句子。 3. 我想我将待在家里。I _____ _____ stay at home. 4. 如果你那样做，你将会觉得很抱歉。 If you ____, ______ ____ sorry. think I’ll do you’ll be 5. 如果他们今天聚会，将会发生什么事？ _____ ___ _______ if they _____ the party today? What will happen have 6. 我们应当要求人们带食物来吗？ Should we ______ people to ______ food? ask bring 单击此处添加标题文本内容 新课探究 情境导入 课堂小结 Exercise 25 Oral:Ask three students: What will you do if you have no lessons tomorrow? Then make a report like this: If we have no lessons tomorrow,… Li Yan will go to the movies,... 课后作业 Unit 10 Section A (Grammar Focus-3c) 26 THANK YOU $$