1、Expository WritingInstructor:Xiewannaindustrial robotagricultural robotmedical robotmilitary robotfamily robotExposition:An introdction to your robotUseful questionsWhat is an exposition?What are the features of an exposition?What are the parts of an expostion?What makes a good paragraph?What is an
2、exposition?说明文是以说明为主要表达方式的文体，是通过说明事物的种类、形态、颜色、构造、性质、原因、功能、用途、习惯、危害、关系或事例的概念、特点、演变、异同等，使人认识事物的一种文体.An exposition is a writing which explains something.It is a type of oral or writen discourse(论述、演讲、谈话)that is used to explain,describe,give information or inform.根据下图示意图提示内容，写一篇100字左右的短文，说明如何移植植物。When a
3、 plant grows too large for its original place,it needs to be replanted in another pot.You can do this quickly and easily if you follow the following instructions.First,you should cover the bottom of the pot with some small stones.Then put two or three inches of soil on the small stones.You then dig
4、a hole in the center of the soil and drop the plant into the soil.Next,you should add more soil until it almost reaches the top of the pot,press the soil with thumbs.Finally,water the plant.Plants need sunshine,water,soil and our love as well.Center on one theme1.“KISS”Principle2.Vivid language 3.No
5、 exaggeration(夸张)Reasonable sequence of introductionWhat are the features of an exposition?1.语言简明扼要，通俗易懂，避免夸张华丽的辞藻，但可使用修辞手段，来增加色彩。2.说明时一定要把握一个中心主题。说明文中细枝末节较多，但不能喧宾夺主。3.说明的次序非常重要。合理的次序会使条理清楚，脉络明晰。What are the parts of an expostion?IntroductionPartMainBodyEndingan introduction to the topicAn overall i
6、ntroduction to all the important pointsa summary of the topicWhat makes a good paragraph?1.单词替换(用恰当的词替换划线部分)1.It still have two other functions.2.This robot will be popular in the market.otheradditionalIt still have two additional functions.be popularbe a real hitThis robot will be a real hit in the
7、 market.2.复杂句式1.It is very strong and can lift 100kg weight goods according to our test results.（使用so.that 结构）It is so strong that it can lift 100kg weightgoods according to our test results.Considering2.we consider that increasing population who are not good at cooking will start their career and l
8、ive independently and we believe.(分词作状语)_ that increasing population who are not good at cooking will start their career and live independently,we believe.A good paragraph is one with advancedvocabulary and variedsentence patterns.3.连接词 It is 160 kilometers high and with 2 big eyes.Its so strong tha
9、t it can lift 100 kg weight goods according to our test results._ it still has two additional functions._ is translation between English and Chinese._ is cooking skill._ if you put vegetables or meat into the specified accessory of the robert according to the instruction showed in the screen and cho
10、ose the dish you wish in the menu,you can get well cooked dish after several minutes.BesidesOneThe otherFor exampleA good paragraph is one that contains proper linking words.4.主旨句 Now Id like to introduce the robot invented by our team.It is 160 kilometers high and with 2 big eyes.Its so strong that
11、 it can lift 100 kg weight goods according to our test results.Besides,it still has two additional functions.The first one is translation between English and Chinese.The second one is cooking skill.If you put vegetables or meat into the specified accessory of the robert according to the instruction
12、showed in the screen and choose the dish you wish in the menu,you can get well cooked dish after several minutes.A good paragraph is one that consists of a topic sentence and supporting sentences.Group Work1.Work in groups to design a robot for old people like your grandparents.2.Write an expostion
13、to introduce the robot(no less than 100 words)and choose a group leader to do a presentation.Useful expressions an aging society 一个老龄化的社会 meet social requirement 满足社会需求 empty nesters 空巢老人 a disabled old person 残疾老人 be designed for/to do 为设计 apply in 应用于 high-tech ha tek n.高科技 a good company 一个好陪伴Use
14、ful expressions fetch fet vt拿来；取来 follow human instructions help.with/help.out of remind sbof/to do 提醒某人（做）某事 a real hit in the market 市场中的热销产品 remember to introduce the appearance of the robotpresentation and competitionAssessment structure1content2language31.three parts2.topic sentences1.all the detailed information2.point1.linking words2.adcanced and accurate vocabulary3.good sentence patternsThey need our company!Take care of the old!Sometimes they are just like cute kids.HomeworkPolish your writing(120 words)and hand it in tomorrow.Thank you for your time!
