1、人教版八年级英语上册第十单元SectionA1a2d教学课件Section A(1a-2d)学练优八年级英语上（RJ）教学课件If you go to the party,youll have a great time!八年级英语（八年级英语（RJRJ上）上）教学课件教学课件无忧PPT整理发布初中英语语法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 无忧PPT整理发布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
2、用于陈述语气，表示假设的条件可能存在或发生。无忧PPT整理发布（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）无忧PPT整理发布2.If的两面性1)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无忧PPT整理发布2.If的两面性3
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无忧PPT整理发布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
4、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.无忧PPT整理发布总结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。无忧PPT整理发布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 comecomeswill give1.If
5、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stopsstudy无忧PPT整理发布二）选择二）选择4.Please stay at ho
6、me 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A5 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
7、,organize,chocolatego to the party,have a great time,stay at home,take the bus,watch a video,potato chips 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 bec
8、ause theyll be too lazy to cook.Difficulties and points:Ifadverbials，conditional adverbials.Match the statements with the pictures a-d.StatementsResponses1._ I think Ill wear jeans to the party.If you do,the teachers wont _.2._ I think Ill stay at home.If you do,youll _.3._ I think Ill take the bus
9、to the party.If you do,youll _.4._ I think Ill go to the party with Karen and Anna.If you do,youll _.cdba1a1aListen and complete the responses in 1a.StatementsResponses1._ I think Ill wear jeans to the party.If you do,the teachers wont _.2._ I think Ill stay at home.If you do,youll _.3._ I think Ill
10、 take the bus to the party.If you do,youll _.4._ I think Ill go to the party with Karen and Anna.If you do,youll _.let you inbe sorrybe latehave a great timecdba1b1bA: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 ha
11、ve a great time.1c1cLook 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
12、 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/Sat
13、urday afternoon/Saturday evening).2a2a1.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 shortanswer in the box to answer each question.half the class wont come some students will be bored make s
14、ome food students will leave early the party gamesStudents will leave early.2b2bSome 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
15、 a good time to have the party?B:Lets have it today.A:Hmm.If we have it today,half the class wont come.2c2cRole-play the conversation.2d2dJeff: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
16、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
17、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。1I think Ill go to the party with Karen and Anna.(1)“will动词动词原形原形”是是一般将来时的一种构成一般将来时的一种构成形形 式式，表示将来的动作或者状态，其否定式是，表示将来的动作或者状态，其否定式是在在 will后加后加not。例例：I will go to see you the day after to
18、morrow.后天后天我会去看你。我会去看你。(2)go to the party 参加聚会。参加聚会。go to后接地点名词后接地点名词，接接副词时省略副词时省略to。例例：We will go there by bus.我们将坐公交车去我们将坐公交车去那那 儿儿。2.If you go to the party，youll have a great time.have a great time 玩得愉快。玩得愉快。其同义其同义短语短语 为为have fun、have a good time和和enjoy oneself，但但have a great time表示的愉快程度更深一些。表示的愉
19、快程度更深一些。例例：Did you have a great time at Jims birthday party？你们在吉姆的生日聚会你们在吉姆的生日聚会上上 玩玩得开心吗？得开心吗？Yes，we enjoyed ourselves very much.是的，我们玩得很开心。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.何时做某事何时做某事。是。是“疑问词疑问词 动词动词不定式不定式”的结构的结
20、构，在句中作宾语。该，在句中作宾语。该结结 构构在句中还可作主语、表语等。在句中还可作主语、表语等。例例：When to start has not been decided.何时何时 出发出发尚未确定。尚未确定。(2)meeting n.会议会议；集会；会面。常用短语；集会；会面。常用短语：have/hold a meeting开会；开会；attend a meeting 参加参加会议会议。例例：He spoke at the meeting in a high voice.他他 在在会上高声发言了。会上高声发言了。4.half the class wont come(1)half adj.
21、一半的；绝大部分的一半的；绝大部分的。当表示。当表示 “半个半个”时，英式英语多用时，英式英语多用half a/the.，而而美式英语多用美式英语多用a/the half.例例:Half the time you dont even listen to what I say.你甚至绝大部分时间都没听你甚至绝大部分时间都没听我我说说的话。的话。(2)class在此为集体名词，意为在此为集体名词，意为“班，班级班，班级”。集体集体名词通常表示两种含义，一是表示整体名词通常表示两种含义，一是表示整体，二二是表示成员。它表示整体时被视为单数是表示成员。它表示整体时被视为单数，作主作主语时谓语动词用单数
22、形式；表示成员语时谓语动词用单数形式；表示成员时时 被被视为复数，作主语时谓语动词用复数形式视为复数，作主语时谓语动词用复数形式。常见常见的集体名词还有的集体名词还有family、team等。等。例例：The class are all interested in English.全全 班同学班同学都对英语感兴趣都对英语感兴趣。The class is made up of 55 students.这个这个 班班由由55名名同学同学组成。组成。5.If we ask people to bring food，theyll just bring potato chips and chocolat
23、e because theyll be too lazy to cook.(1)此句此句为为if引导的条件状语从句的复合句。引导的条件状语从句的复合句。含含 if引导的条件状语从句的复合句中，引导的条件状语从句的复合句中，主句是主句是 祈使句祈使句或或主句时态是一般将来时或主句的主句时态是一般将来时或主句的 谓语谓语含情态动词含情态动词，那么从句就要用，那么从句就要用一般一般现现 在时来表将来。在时来表将来。例例：If it rains，we will not go swimming.如如 果果下雨，我们就不去游泳。下雨，我们就不去游泳。中考链接Can Mr.King spare some t
24、ime for the meeting?Can Mr.King spare some time for the meeting?If he If he _,he _,he will try his best to make itwill try his best to make it.（20172017内蒙古内蒙古呼和浩特）呼和浩特）A.will A.will be invited be invited B.is B.is invited invited C.invites D.invited C.invites D.invited解析解析 答句答句是是if if引导的引导的条件状语从句条件状
25、语从句的复合句，主的复合句，主句为一般将来时句为一般将来时，则从句要用，则从句要用一般一般现在时来表现在时来表将来。将来。B (2)ask sb.to do sth.要求要求/请求某人做某事。请求某人做某事。其否定形式是其否定形式是ask sb.not to do sth.。例：例：He asked me to wait a moment.他让我他让我等一会儿。等一会儿。(3)because theyll be too lazy to cook是由是由because引导的原因状语从句。注意：句中有引导的原因状语从句。注意：句中有连词连词because则不能再用连词则不能再用连词so。例：例：I
26、 was late because I missed the bus.我我来晚了，因为我错过了公交车。来晚了，因为我错过了公交车。一、用所给词的适当形式填空。一、用所给词的适当形式填空。1.I will attend a 1.I will attend a _（meetmeet）this afternoon.this afternoon.2.My mother asks me 2.My mother asks me _(_(not go)out not go)out alone alone at night.at night.3.We havent decided when 3.We have
27、nt decided when _(_(start)off.start)off.4.The class 4.The class _（be)playing games on the be)playing games on the playground playground.5.If he 5.If he _(_(come),Ill give you a e),Ill give you a call.meetingnot to goto startarecomes二、按要求完成句子。二、按要求完成句子。1.Can 1.Can you tell me how I can get to the you
28、 tell me how I can get to the supermarket supermarket?（写出同义句）（写出同义句）Can Can you tell me how you tell me how _to _to the the supermarket?supermarket?2.Lucy 2.Lucy asks me to wait for her at the school gateasks me to wait for her at the school gate.（改为否定句）改为否定句）Lucy asks Lucy asks me _ for me _ for he
29、r at the her at the school school gategate.to getnot to wait3.We 3.We had a great time in Shanghai.had a great time in Shanghai.（写出（写出同同义义 句句）We _ We _ in Shanghai.in Shanghai.had fun/enjoyed ourselves1.Master the new words and phrases in this lesson.2.Role-play the conversation in 2d.3.Preview the part“Grammar Focus”.
