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

1、Section A Grammar Focus-3cSection A Grammar Focus-3c To practice the sentence structures: If, youll What will happen if they If they, will/wont Should we? If we, theyll 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 som

2、e music watching TV go shopping The weather is very important! sunny rainy snowycloudy 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 weeke

3、nd, 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 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 hav

4、e the party today? If they have it today, half the class wont come. Should we ask people to bring food? If we ask people to bring food, theyll just bring potato chips and chocolate. Read the sentences I think Ill take the bus to the party. If you do, youll be late. I think Ill stay at home.If you do

5、, 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 food? If we ask people to bring food, theyll just bring potato chips and chocolate. Grammar Focus I will have a good time tomorrow. I will go to the party t

6、omorrow. If I go to the party tomorrow, Ill have a good time. 合并合并 Grammar Focus: if 条件句条件句 if引导一个条件状语从句时，引导一个条件状语从句时，当主句是一般将来当主句是一般将来 时时时时, if引导的从句必须用现在时来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。表示将来可能发生的动作或存在的状态。 在英语里在英语里, 当句子的主句为将来时态时当句子的主句为将来时态时, 它所引导的它所引导的 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

7、来时间表示将来时间, 这在英语里被称为这在英语里被称为“主将从现主将从现”。 主句的将来时态并不仅限于我们这一课里所学习到主句的将来时态并不仅限于我们这一课里所学习到 的的will动词原形构成的一般将来时动词原形构成的一般将来时, 还包括还包括be going to动词原形、动词原形、be doing所表示的一般将来时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？他长大了想干什么？ We are leaving for Xiamen to

8、morrow if it doesnt rain. 如果明天不下雨如果明天不下雨, , 我们就去厦门。我们就去厦门。 We will buy that microwave next week if its price keeps going down. 如果价格持续下降如果价格持续下降, ,下个礼拜我们就买那台微波炉。下个礼拜我们就买那台微波炉。 If +, Ill / youll + 条件条件结果结果 1. 1. 结构结构 For example: If you study, Ill be happy. wear jeans to school, youll be sorry. get up

9、 late, youll be late. eat too much, youll be fat. wash your clothes yourself 有时，我们可以使用有时，我们可以使用并列结构的祈使句并列结构的祈使句来表达来表达 if引导的条件句。如：引导的条件句。如： If you set your alarm clock, you wont oversleep. 如果你上闹钟如果你上闹钟, 你就不会睡过头了。你就不会睡过头了。 Set your alarm clock, and you wont oversleep. If you give him an inch, he will

10、take a mile. 他会得寸进尺。他会得寸进尺。 Give him an inch, and he will take a mile. If you dont give him some food, he will starve. 如果你不给他一点吃的如果你不给他一点吃的, , 他就会饿死。他就会饿死。 Give him some food, or/else he will starve. 2. 用法用法 (1)条件状语从句通常由连词条件状语从句通常由连词if引导引导, 意为意为“如果、假如如果、假如”, 主主 句不能用句不能用be going to表示将来表示将来, 而应该用而应该用s

11、hall, will。 e.g. If you leave now, you are never going to regret it. (错误错误) If you leave now, you will never regret it. (正确正确) (2) if “如果如果”, 引导条件状语从句引导条件状语从句, 主句用一般将来时主句用一般将来时, 从句则从句则 用一般现在时，用一般现在时，如：如： If it rains tomorrow, I shant climb the hills. 注意注意: 宾语从句中的宾语从句中的if与条件状语从句与条件状语从句if的区别。的区别。 宾语从句

12、中的宾语从句中的if“是否是否”相当于相当于whether, 引导宾语从句引导宾语从句, 时态需根据语境确定。时态需根据语境确定。 I dont know if it will rain tomorrow. 我不知道明天是否会下雨。我不知道明天是否会下雨。 在阅读英文文章时在阅读英文文章时, , 我们有可能看到这样的句子：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. 如果我父亲同意如果我父亲同意, , 我将在国外待几个月。我将在国外待几个月。 If you will

13、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。什么意思了。 在在if-if-分句中用分句中用“will动词原形动词原形”并不单纯表示将来意并不单纯表示将来意 义，这里的义，这里的will是个表示是个表示“意愿意愿”的情态动词的情态动词, , 相当于相当于 be willing to( (愿意愿意) )。 要注意这种带要注意这种带“will动词原形动词原形”的的if-if-分句在某些场

14、合是分句在某些场合是 不可以随便用的不可以随便用的, , 比如我们可以说：比如我们可以说： If he gets my letter in time, hell be able to change his plans. 如果他及时收到我的信如果他及时收到我的信, , 他就能改变他的计划。他就能改变他的计划。 却不可以说成：却不可以说成： If he will get my letter in time, hell 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

15、如果你愿意尝尝意大利食物, , 你会喜欢它的。你会喜欢它的。 If you would reserve the seats, we would be sure of a comfortable journey. 如果你愿意订座如果你愿意订座, , 我们将肯定会有一个舒适的旅程。我们将肯定会有一个舒适的旅程。 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 e

16、xam next week. If I _(go) to the party, they _(be) upset. Mike _(tell) us wear nice knowdo think go will be Fill in the blanks with the correct forms of the verbs in brackets. 3 a told clothes, but I dont _(have) any. If I _(wear) jeans, I _(look) the worst. Also, Im not sure how to _(go) to the par

17、ty. 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 walkwill take takewill be 1. If I get up late tomorrow, _ 2. If I dont finish my homework, _ I will miss the school bus. my teacher will be angry. Co

18、mplete the sentences using your own ideas. 3 b 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 wont 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。仿照例子把两句话合成一句话。 Example: a. You think you re

19、 going to visit New York City. b. You will see some tall buildings. If you go to visit New York City, youll see some tall buildings. Practice 1. a. You think youre going to study English hard. b. You will do better in English. 2. a. You think youre going to eat and drink more. b. You will be fatter.

20、 If you study English hard, youll do better in English. If you eat and drink more, youll 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

21、 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

22、 the movies, I wont finish my homework. If I dont finish my homework 3 c 1. bedoing形式形式: 用现在进行时态表达将来，主要意义是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表示按计划、安排即将发生的动作，常用于位置转移的动 词词, 如如go、come、leave、start、arrive等等, 也可用于其它动也可用于其它动 态动词。如：态动词。如： The president is coming to the UN this week. 总统这周将到联合国来。总统这周将

23、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。我们后天将换一家宾馆。 在英语中在英语中, 有相当多的动态动词都可以用现在进行有相当多的动态动词都可以用现在进行 时表示将来。时表示将来。例如：例如： Dinner is ready. Were having fish for dinner. 晚饭好了晚饭好了, 今晚我们吃鱼。今晚我们吃鱼。 Im spending my holidays in Singapore this year. 今年我要去新加坡度假。今年我要去新加坡度假。 Tom i

24、snt finishing his high school until next year. 汤姆明年才高中毕业。汤姆明年才高中毕业。 Can you give me some advice please? advice意为意为“劝告；建议劝告；建议”是不可数名词，不能说是不可数名词，不能说an advice, 而应说而应说a piece of advice。“两个（则）建议两个（则）建议”， 我们通常说我们通常说two pieces of advice。注意。注意piece要采用复要采用复 数，数，advice不可数，但不可数，但piece可数。我们也可以说可数。我们也可以说some pie

25、ces of advice一些建议。如：一些建议。如： Can you give me some advice? 你能给我一些建议吗？你能给我一些建议吗？ 与与advice有关的一些词组：有关的一些词组： ask advice of 向向征求意见征求意见, 请教请教 by sb.s advice 依某人劝告依某人劝告 on sb.s advice 依某人劝告依某人劝告 follow sb.s advice 接受某人意见接受某人意见 give advice 劝告劝告, 忠告忠告 . 翻译下列句子。 1.如果你不赶快走如果你不赶快走, 你就会迟到。你就会迟到。 2 .如果你爱你的父母如果你爱你的父

26、母, 你应当帮他们做做家务。你应当帮他们做做家务。 3. 如果你更友善一些如果你更友善一些, 你会交上很多好朋友。你会交上很多好朋友。 If you dont go soon, youll be late. You should help do the housework if you love your parents. You will make lots of friends if you are more friendly. 4. 如果你带外校的朋友来如果你带外校的朋友来, 老师会让他们离开。老师会让他们离开。 5. 如果你不完成作业如果你不完成作业, 妈妈不会让你玩电游。妈妈不会让你玩电游。 6. 当你看到当你看到Bill Gates, 你会对他说些什么？你会对他说些什么？ If you bring friends from other schools, the teacher will ask t