人教版八年级英语上册第十单元SectionA(1a-2d)教学课件.ppt

,RJ八(上) 教学课件,Go,for,it!,Section A (1a-2d),学练优八年级英语上（RJ） 教学课件,Unit 10,If you go to the party, youll have a great time!,八年级英语（RJ上） 教学课件,山东省梁山县韩岗镇第一中学,初中英语语法 If 引导的真实条件状语从句,主讲：齐绪友 单位：山东省梁山县韩岗镇第一中学,If引导的真实条件句,非真实条件句,3.时态呼应,1.主从句的位置,2.If的两面性,真实条件句,If引导的条件状语从句,一.定义,二.主要要素,if “如果, 假如” 它引导的句子表示 “在条件下，某事才能发生”，真实 条件句用于陈述语气，表示假设的条 件可能存在或发生。,（主句）,（主句）,I will stay at home if it rains tomorrow.,1.主从句的位置,主从无逗,从主有逗,（从句）,= If it rains tomorrow , I will stay at home .,（从句）,2.If的两面性,We will go out if it is fine tomorrow.,2) I want to know if he is a teacher.,if在条件状语从句中翻译为“如果”,if 在宾语从句中翻译为“是否”,如果, whether,2.If的两面性,3.时态呼应,1)主句为一般将来时态，if从句用一般现在时态（主将从现）。,1.We will stay at home if it rains tomorrow.,2.We are going to stay at home if it rains tomorrow.,注意,X,在if引导的条件状语从句中，当主句是一般将来 时时，不能够使用be going to结构，而要用will/shall,2.If的两面性,3.时态呼应,3) 主句为祈使句，if从句用一般现在时态（主祈从现）,1.You must stop if the traffic is red. 2.Dont wait for me if I am late.,2)主句中含有情态动词，if从句用一般现在 时态(主情从现）,1. If you finish your homework, you can go home now. 2.If you drive too fast, you may have an accident.,总结,If引导的真实条件句用法巧记忆：,从主有逗， 主从无逗；,主将从现， 主祈从现， 主情从现；,是否如果， 要分清楚。,2.If的两面性,3.时态呼应,三、练习巩固,3.You may pass the exam if you (study) hard.,will come,comes,will give,1.If the rain _(stop) tonight, we will go to the cinema.,一）给所给词的适当形式填空,解析： if意为“是否”，引导条件句主将从现，所以从句为一般现在时,2.I want to know if he _(come) tomorrow, if he _(come), I _(give) the massage to him.,解析：第一空，if意为“是否”，引导宾语从句，时态为一般将来时；第二三空， if 意为“如果”引导条件句，主将从现,解析： if 意为“如果”引导条件句，主情从现,stops,study,二）选择,4. Please stay at home if it tomorrow. A. rains B. rained C. will rain D. rain,解析：if引导条件状语从句 ,主句放在从句之前，主句是祈使句，从句用 一般现在时，选A,5 I _ her the answer if she _me. A.am going to tell, asks B. will tell, asks C.am going to tell, ask D. will tell, ask,解析：在if引导的条件状语从句中，当主句是一般将来时时， 不能够使用be going to结构，而要用will,选B,三、练习巩固, Key words & phrases: meeting,video,organize,chocolate go to the party,have a great time,stay at home,take the bus,watch a video,potato chips,Language Targets, Key sentences: 1. If you go to the party, youll have a great time. 2. I think Ill go to the party with Karen and Anna. 3. If we ask people to bring food, theyll just bring potato chips and chocolate because theyll be too lazy to cook. Difficulties and points: Ifadverbials，conditional adverbials.,Match the statements with the pictures a-d.,c,d,b,a,1a,Listen and complete the responses in 1a.,let you in,be sorry,be late,have a great time,c,d,b,a,1b,A: Are you going to the party tomorrow night? B: Yes, I am. A: Who will you go with? B: I think Ill go with Karen and Anna. A: If you do, youll have a great time.,1c,Look at the pictures above and make conversations.,I think Ill wear jeans to the party?,What will you wear to the party?,If you do, the teachers wont let you in.,Yes,I am.,Are you going to the party tomorrow?,How will you go there?,I think Ill take the bus to the party.,If you do, youll be late.,Are you going to the party tomorrow?,If you do, youll be sorry.,I think Ill stay at home.,Listen and circle the correct answers to complete the sentences below.,1. The students are talking about when to have (a class party/a class meeting/ a birthday party). 2. They plan to have it on (Friday evening/ Saturday afternoon/ Saturday evening).,2a,1. What will happen if they have the party today? 2. What will happen if they have the party tomorrow?,Half the class wont come.,Listen again. Choose the correct short answer in the box to answer each question.,half the class wont come some students will be bored make some food students will leave early the party games,Students will leave early.,2b,Some students will be bored.,The party games.,Make some food.,3. What will happen if they watch a video at the party? 4. What will Mark organize? 5. What will Nelly do?,Role-play a conversation between Nelly and Mark.,A: OK, when is a good time to have the party? B: Lets have it today. A: Hmm. If we have it today, half the class wont come.,2c,Role-play the conversation.,2d,Jeff: Hey, Ben. For the party next week， should we ask people to bring food? Ben：No，lets order food from a restaurant. If we ask people to bring food，theyll just bring potato chips and chocolate because theyll be too lazy to cook. Jeff：OK. For the games，do you think we should give people some small gifts if they win? Ben：I think thats a great idea！If we do that， more people will want to play the games. Jeff：Yes，the games will be more exciting，too.,嘿，本，下周有一个派对，我们该告诉人们带一些食物吗？ 不，我们在餐馆点食物，如果我告诉人们带食物，他们只会带薯条和巧克力因为他们懒得做食物。 好的，游戏方面，你认为我们应该买一些小礼物作为赢得奖品吗？ 我认为这是个好主意！如果我们这么做，更多人会参加游戏。 是的，游戏也会变得更有趣。,Language points,1I think Ill go to the party with Karen and Anna. (1) “will动词原形”是一般将来时的一种构成形 式，表示将来的动作或者状态，其否定式是在 will后加not。 例：I will go to see you the day after tomorrow. 后天我会去看你。 (2)go to the party 参加聚会。go to后接地点名词， 接副词时省略to。 例：We will go there by bus.我们将坐公交车去那 儿。,2. If you go to the party，youll have a great time. have a great time 玩得愉快。 其同义短语 为have fun、have a good time和enjoy oneself， 但have a great time表示的愉快程度更深一些。 例：Did you have a great time at Jims birthday party？ 你们在吉姆的生日聚会上 玩得开心吗？ Yes，we enjoyed ourselves very much. 是的，我们玩得很开心。,3The students are talking about when to have (a class party/a class meeting/a birthday party) (1)when to do sth.何时做某事。是“疑问词 动词不定式”的结构，在句中作宾语。该结 构在句中还可作主语、表语等。 例：When to start has not been decided.何时 出发尚未确定。 (2)meeting n.会议；集会；会面。常用短语： have/hold a meeting开会；attend a meeting 参加会议。 例：He spoke at the meeting in a high voice.他 在会上高声发言了。,4. half the class wont come (1)half adj.一半的；绝大部分的。当表示 “半个”时，英式英语多用half a/the.， 而美式英语多用a/the half. 例:Half the time you dont even listen to what I say. 你甚至绝大部分时间都没听我说的话。,(2)class在此为集体名词，意为“班，班级”。 集体名词通常表示两种含义，一是表示整体， 二是表示成员。它表示整体时被视为单数， 作主语时谓语动词用单数形式；表示成员时 被视为复数，作主语时谓语动词用复数形式。 常见的集体名词还有family、team等。 例：The class are all interested in English.全 班同学都对英语感兴趣。 The class is made up of 55 students.这个 班由55名同学组成。,5. If we ask people to bring food，theyll just bring potato chips and chocolate because theyll be too lazy to cook. (1)此句为if引导的条件状语从句的复合句。含 if引导的条件状语从句的复合句中，主句是 祈使句或主句时态是一般将来时或主句的 谓语含情态动词，那么从句就要用一般现 在时来表将来。 例：If it rains，we will not go swimming.如 果下雨，我们就不去游泳。,中考链接,Can Mr. King spare some time for the meeting? If he _, he will try his best to make it. （2017内蒙古呼和浩特） A. will be invited B. is invited C. invites D. invited 解析 答句是if引导的条件状语从句的复合句，主句为一般将来时，则从句要用一般现在时来表将来。,B,(2)ask sb. to do sth. 要求/请求某人做某事。其否定形式是ask sb. not to do sth.。 例：He asked me to wait a moment.他让我等一会儿。,(3)because theyll be too lazy to cook是由because引导的原因状语从句。注意：句中有连词because则不能再用连词so。 例：I was late because I missed the bus.我来晚了，因为我错过了公交车。,Exe