新PEP人教版八年级上册英语《Unit 10 Section A Grammar Focus-3c》PPT课件.pptx

Unit 10 If you go to the party, you’ll have a great time! 人教 版八年级 英语上册 Section A Grammar Focus-3c To practice the sentence structures: If…, you’ll… —What will happen if they… —If they…, …will/won’t… —Should we…? —If we…, they’ll… Objectives 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 snowy cloudy If it is sunny this weekend… sunny If it is sunny this weekend, 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. rainy If it rains this weekend, If it rains this weekend… I will stay at home. If it rains this weekend, I will do my homework. If it rains this weekend, I will listen to some music. 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. Read the sentences 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. Grammar Focus I will have a good time tomorrow. I will go to the party tomorrow. If I go to the party tomorrow, I’ll have a good time. 合并 Grammar Focus: if 条件句 if 引导一个条件状语从 句时， 当 主句是一般将来时时 , if 引导的从句必须用现在时来 表示将来可能发生的动作或存在的状态。 在英语里 , 当句子的主句为将来时态时 , 它所引导的时间状语从句和条件状语从句都使用一般现在时来表示将来时间 , 这在英语里被称为“ 主将从现 ”。主句的将来时态并不仅限于我们这一课里所学习到的 will ＋动词原形构成的一般将来时 , 还包括 be going to ＋动词原形、 be doing 所表示的一般将来时以及我们以后会学到的其它的将来时态。例如 : ► What is he going to do when he grows up? 他 长大了想干什么 ？ ► We are leaving for Xiamen tomorrow if it doesn’t rain. 如果 明天不下雨 , 我们就去厦门。 ► We will buy that microwave next week if its price keeps going down. 如果 价格持续下降 , 下个礼拜 我们就买那台微波炉。 If + … , I’ll / you’ll + … ↘ ↙ ↘ ↙ 条件 结果 1. 结构 For example: If you study , I’ll be happy. wear jeans to school, you’ll be sorry. get up late, you’ll be late. eat too much, you’ll be fat. wash your clothes yourself… 有时，我 们可以使用 并列结构的祈使句 来表 达 if 引 导的条件句。如： If you set your alarm clock, you won’t oversleep. 如果 你上闹钟 , 你就不会睡过头了 。 Set your alarm clock, and you won’t oversleep . ► If you give him an inch, he will take a mile. 他 会得寸进尺。 ► Give him an inch, and he will take a mile. ► If you don’t give him some food, he will starve. 如果 你不给他一点吃的 , 他就会饿死。 ► Give him some food, or/else he will starve. 2 . 用法 (1) 条件状语从句通常由连词 if 引导 , 意为“如果、假如” , 主句不能用 be going to 表示将来 , 而应该用 shall, will 。 e.g . If you leave now, you are never going to regret it. ( 错误 ) If you leave now, you will never regret it. ( 正确 ) ( 2) if “ 如果” , 引导条件状语从句 , 主句用一般将来时 , 从句则用一般现在时， 如： If it rains tomorrow, I shan’t climb the hills. 注意 : 宾语从句中的 if 与条件状语从句 if 的区别。 宾语从句中的 if “ 是否”相当于 whether , 引导宾 语从句 , 时态需根据语境确定 。 I don’t know if it will rain tomorrow. 我 不知道明天是否会下雨。 在阅读英文文章时 , 我们有可能看到这样的句子： If my father will give me permission, I shall spend a few months abroad. 如果我父亲同意 , 我将在国外待几个月。 If you will take the trouble to read his letter carefully, you will see what he means. 如果 你肯花一些时间来认真读他的信，你就会明白他是什么意思了。 在 if- 分句中用“ will ＋动词原形”并不单纯表示将来意义，这里的 will 是个表示“意愿”的情态动词 , 相当于 be willing to ( 愿意 ) 。 要注意这种 带“ will ＋动词原形 ”的 if- 分句在某些场合是不可以随便用的 , 比如我们可以说： If he gets my letter in time, he’ll be able to change his plans . 如果他及时收到我的信 , 他就能改变他的计划 。 却 不可以说成： If he will get my letter in time, he’ll be able to change his plans. If you would try Italian food, you would like it. 如果你愿意尝尝意大利食物 , 你会喜欢它的。 If you would reserve the seats, we would be sure of a comfortable journey. 如果你愿意订座 , 我们将肯定会有一个舒适的旅程。 Dear Su Mei, I don’t ______( know) what to ______( do) about going to Mike’s 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 know do think go will be Fill in the blanks with the correct forms of the verbs in brackets. 3a told clothes , but I don’t ______(have) any. If I _____(wear) jeans, I ________(look) the worst. Also, I’m 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 ? Tina have wear will look go walk will take take will be 1 . If I get up late tomorrow, ____________________________ 2 . If I don’t finish my homework, ____________________________ I will miss the school bus. my teacher will be angry. Complete the sentences using your own ideas. 3b 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 won’t be strong. I play computer games all the day. I always make them upset. 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. Practice 1. a. You think you’re going to study English hard. b. You will do better in English. 2. a. You think you’re going to eat and drink more. b. You will be fatter. → If you study English hard, you ’ll do better in English . → 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. 4. a. I think you are going to let me watch TV. b. I will stay at home. → Their health will be better if they do more exercise . → I will stay at home if you let me watch TV. 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… 3c 1. be ＋ doing 形式 : 用现在进行时态表达将来，主要意义是表示按计划、安排即将发生的动作，常用于位置转移的动词 , 如 go 、 come 、 leave 、 start 、 arrive 等 , 也可用于其它动态动词。如： The president is coming to the UN this week. 总统这周将到联合国来。 We are moving to a different hotel the day after tomorrow . 我们后天将换一家宾馆。 Exercises 在英 语中 , 有相当多的动态动词都可以用现在进行时表示将来。 例如： Dinner is ready. We’re having fish for dinner. 晚饭好了 , 今晚我们吃鱼。 I’m spending my holidays in Singapore this year. 今年我要去新加坡度假。 Tom isn’t finishing his high school until next year. 汤姆明年才高中毕业。 2. Can you give me some advice please? advice 意为“劝告；建议”是不可数名词，不能说 an advice, 而应说 a piece of advice 。“ 两个（则）建议”，我们通常说 two pieces of advice 。注意 piece 要采用复数， advice 不可数，但 piece 可数。我们也可以 说 some pieces of advice 一些建议。如： Can you give me some advice? 你能给我一些建议吗？ 与 advice 有关的一些词组： ask advice of 向 …… 征 求意见 , 请教 by sb .'s advice 依某人劝告 on sb .'s advice 依某人劝告 follow sb.'s advice 接受某人意见 give advice 劝告 , 忠告 Ⅰ. 翻 译下列句子。 1. 如果你不赶快走 , 你就会迟到。 2 .如果你爱你的父母 , 你应当帮他们做做家务。 3. 如果你更友善一些 , 你会交上很多好朋友。 If you don’t go soon, you’ll be late. You should help do the housework if you love your parents. You will make lots of friends if you are more friendly. Exercises 4. 如果你带外校的朋友来 , 老师会让他们离开。 5. 如果你不完成作业 , 妈妈不会让你玩电游。 6. 当你看到 Bill Gates, 你会对他说些什么？ If you bring friends from other schools, the teacher will ask them to leave. If you don’t finish your homework, your mother won’t let you play computer games. What will you say to Bill Gates when you see him? 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. 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? have half won’t ask bring （ 2018· 四川乐山 ） — Thank you for telling me so much knowledge about nature . — Don’t mention it. ______ you have more questions, come to me any time. A. If B. Because C. Though 【 答案 】A 中考链接 （ 2018 · 江西 ） — Can students go online during lessons? — They can ________ it is for that lesson. A. if B. or C. so D. but 【解析】 句意： —学生 可以在课上上网吗？ —如果 是为了上课，他们可以上网。考查连词辨析题。if如果，表条件；or或者，表选择；so所以，表结果；but但是，表转折。答句是条件状语从句，需用if连接。根据句意结构，可知选A 。 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. 1.Write five sentences with if structure. 2.Copy and translate the sentences below. Homework