文章结构分析(UnderstandingTextStructure).ppt

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1、Understanding Text Structures,What is a text structure?,A “structure” is a building or framework“Text structure” refers to how a piece of text is built,What is a text structure?,Builders can use different kinds of structures to build different thingsA skyscraper, for example, is a different kind of

2、structure from a house,What is a text structure?,Writers use different structures to build their ideasEach text structure communicates ideas in a different way,Chronological order,Authors use chronological order to explain how things happen in orderChronological order is also called sequence or time

3、 order,Chronological order,You will know that you are reading a text in chronological order because you will see words like first, next, later, then, and finally,Chronological order,You will often see chronological order in directions: Have you ever made macaroni and cheese? Its simple! First, boil

4、some water and make some macaroni. Then, make your cheese sauce. After the cheese sauce is ready, mix it with the macaroni. Bake the entire thing in the oven. Finally, its time to eat!,Chronological order,You will often see chronological order in directions: Have you ever made macaroni and cheese? I

5、ts simple! First, boil some water and make some macaroni. Then, make your cheese sauce. After the cheese sauce is ready, mix it with the macaroni. Bake the entire thing in the oven. Finally, its time to eat!,Which paragraph is in chronological order?,Pennsylvania has many historic sites. You can vis

6、it Revolutionary war sites, like Valley Forge. You can also visit important locations from the Civil War, like Gettysburg. Finally, you can also see the site of the first oil well in Titusville. Pennsylvania has many neat places to visit!,Through the ages, Pennsylvania has seen many interesting even

7、ts. The state was founded in 1681 by William Penn. Later, Pennsylvania was the site of important Revolutionary War battles. After that, Pennsylvania was home to new factories during the Industrial Revolution. Today, Pennsylvania continues to make history.,Which paragraph is in chronological order?,T

8、hrough the ages, Pennsylvania has seen many interesting events. The state was founded in 1681 by William Penn. Later, Pennsylvania was the site of important Revolutionary War battles. After that, Pennsylvania was home to new factories during the Industrial Revolution. Today, Pennsylvania continues t

9、o make history.,This is the paragraph in chronological order. Can you find the clue words that show this order?,Which paragraph is in chronological order?,Through the ages, Pennsylvania has seen many interesting events. The state was founded in 1681 by William Penn. Later, Pennsylvania was the site

10、of important Revolutionary War battles. After that, Pennsylvania was home to new factories during the Industrial Revolution. Today, Pennsylvania continues to make history.,This is the paragraph in chronological order. Can you find the clue words that show this order?,Think about it!,What is a struct

11、ure?What does chronological order mean?What are some clue words that show chronological order?,Another text structure,But what if an author doesnt want to show how something happened in sequence?The author would need to use another text structure!,Another text structure,Suppose an author wanted to e

12、xplain how these two birds are similar and differentChronological order wouldnt work-there is no order of eventsThe author would need to use compare and contrast,Another text structure,The cardinal and the cedar waxwing are two common birds. Both have crests on their heads. Both are common at birdfe

13、eders. But the birds have some differences. The male cardinal is a bright red, while the waxwing is brown. The cedar waxwing often migrates from place to place. On the other hand, the cardinal stays in one place year after year.,Compare and contrast clue words,When authors use the text structure of

14、compare and contrast, they often use special clue words to show this text structure. Can you find the clue words in the paragraph?,Can you find the clue words?,The cardinal and the cedar waxwing are two common birds. Both have crests on their heads. Both are common at birdfeeders. But the birds have

15、 some differences. The male cardinal is a bright red, while the waxwing is brown. The cedar waxwing often migrates from place to place. On the other hand, the cardinal stays in one place year after year.,Here they are!,The cardinal and the cedar waxwing are two common birds. Both have crests on thei

16、r heads. Both are common at birdfeeders. But the birds have some differences. The male cardinal is a bright red, while the waxwing is brown. The cedar waxwing often migrates from place to place. On the other hand, the cardinal stays in one place year after year.,Compare and contrast graphic organize

17、r,To organize details from a paragraph in compare and contrast, use a Venn diagram,Review,Can you explain the difference between chronological order and compare and contrast?How can clue words help you as a reader?,Another text structure,Sometimes, a writer will want to explain how one event leads t

18、o anotherThis kind of text structure is called cause and effect,Cause and effect clue words,When authors write paragraphs to show causes and effects, they use words like cause, effect, as a result, consequently, and so,Can you find the clue words?,The nights snowstorm had many effects. People were o

19、ut shoveling snow from their sidewalks. The power lines were draped with ice. Snow plows drove down every street. Children were the happiest of all. The unexpected snow caused school to be cancelled!,Can you find the clue words?,The nights snowstorm had many effects. People were out shoveling snow f

20、rom their sidewalks. The power lines were draped with ice. Snow plows drove down every street. Children were the happiest of all. The unexpected snow caused school to be cancelled!,More with cause and effect,Baby painted turtles spend all winter in their nests. They have special chemicals in their b

21、lood that can keep their blood from freezing. As a result, baby painted turtles can survive freezing temperatures!,More with cause and effect,Baby painted turtles spend all winter in their nests. They have special chemicals in their blood that can keep their blood from freezing. As a result, baby pa

22、inted turtles can survive freezing temperatures!,This is the cause,More with cause and effect,Baby painted turtles spend all winter in their nests. They have special chemicals in their blood that can keep their blood from freezing. As a result, baby painted turtles can survive freezing temperatures!

23、,This is the effect,Review,Which text structure tells about how things are similar and different?Compare and contrastWhich text structure explains how things happen in time order?Chronological order,Another kind of text structure,Sometimes, an author will want to explain a problem, and then show one

24、 or more solutionsThis kind of text structure is called problem and solution,An example of problem and solution,Park School had a terrible problem. Every day at recess, students would argue over the slides. Teachers had to spend time every day taking care of the arguments. Finally, one teacher came

25、up with a great solution. They bought another set of slides that everyone could enjoy.,An example of problem and solution,Park School had a terrible problem. Every day at recess, students would argue over the slides. Teachers had to spend time every day taking care of the arguments. Finally, one tea

26、cher came up with a great solution. They bought another set of slides that everyone could enjoy.,Can you find the problem and the solution in this paragraph?,An example of problem and solution,Park School had a terrible problem. Every day at recess, students would argue over the slides. Teachers had

27、 to spend time every day taking care of the arguments. Finally, one teacher came up with a great solution. They bought another set of slides that everyone could enjoy.,Here is the problem,An example of problem and solution,Park School had a terrible problem. Every day at recess, students would argue

28、 over the slides. Teachers had to spend time every day taking care of the arguments. Finally, one teacher came up with a great solution. They bought another set of slides that everyone could enjoy.,Here is the problem,Here is the solution,Of course, problem and solution is not always so simple,Often

29、, authors will signal problem and solution structure with clue words like problem and solution, just like in the last paragraphSometimes, authors will use related words,Of course, problem and solution is not always so simple,Synonyms for problem include difficulty, struggle, uncertainty, worry, thre

30、at, and troubleSynonyms for solution include possibility, hope, bright spot, answer, and future,A more difficult problem and solution paragraph,The Chesapeake Bay faces an uncertain future. Issues such as pesticides, too many nutrients, and habitat loss all threaten the Bays water quality and animal

31、 life. However, scientists are hopeful that the future may be brighter. If everyone in the Chesapeake Bay watershed works together, solutions may be found.,A more difficult problem and solution paragraph,The Chesapeake Bay faces an uncertain future. Issues such as pesticides, too many nutrients, and

32、 habitat loss all threaten the Bays water quality and animal life. However, scientists are hopeful that the future may be brighter. If everyone in the Chesapeake Bay watershed works together, solutions may be found.,What is the problem? What is the solution?,A more difficult problem and solution par

33、agraph,The Chesapeake Bay faces an uncertain future. Issues such as pesticides, too many nutrients, and habitat loss all threaten the Bays water quality and animal life. However, scientists are hopeful that the future may be brighter. If everyone in the Chesapeake Bay watershed works together, solut

34、ions may be found.,Problem Solution,Text structures weve learned so far,Chronological orderCompare and contrastCause and effectProblem and solution,Match the clue words!,however, on the other hand, similarity, like, unlike,Can you figure out the text structure that these clue words point to?,Compare

35、 and contrast,Match the clue words!,as a result, consequently, therefore, so, cause, effect,Can you figure out the text structure that these clue words point to?,Cause and effect,Match the clue words!,problem, solution, threat, difficulty, hope, answer, possibility,Can you figure out the text struct

36、ure that these clue words point to?,Problem and solution,Are there any other text structures?,Most paragraphs that we write in school can be called main idea, description, or statement and support paragraphs,Main idea paragraphs,In this kind of paragraph, the author offers a main idea statement, and

37、 then supports that statement with several details,Main idea paragraphs,The pond was a beautiful place to visit. The falling leaves, all different colors, decorated the surface of the water. At the edges of the pond, small wildflowers grew. The golden forest glowed faintly in the distance.,Main idea

38、 paragraphs,The pond was a beautiful place to visit. The falling leaves, all different colors, decorated the surface of the water. At the edges of the pond, small wildflowers grew. The golden forest glowed faintly in the distance.,Main idea,Main idea paragraphs,The pond was a beautiful place to visi

39、t. The falling leaves, all different colors, decorated the surface of the water. At the edges of the pond, small wildflowers grew. The golden forest glowed faintly in the distance.,Main idea,All of the other sentences explain why the main idea is true,Main idea paragraphs,Clue words in these paragra

40、phs may include:One reason, another reason, and for example,Now its your turn!,On the next few slides, you will read some paragraphs about the Great Chicago FireYour task is to decide on the text structure for each oneUnderstanding the text structure will help you to understand each paragraph,Whats

41、the text structure?,Chronological orderCompare and contrastCause and effectProblem and solutionMain idea,Daniel Sullivan was the first to notice the flames coming from the OLeary barn at around 8:30 pm on October 8. A problem with the alarm box made it impossible for the people in the area to call f

42、or the fire department. By 9:30 pm, the entire block was blazing. In another 3 hours, there were fires all over Chicago. The heavy wind coming from the lake only made the fire bigger. It would be another day before the fire would be completely out. By that time, 17,500 buildings had been burned.,Wha

43、ts the text structure?,Chronological orderCompare and contrastProblem and solution,Daniel Sullivan was the first to notice the flames coming from the OLeary barn at around 8:30 pm on October 8. A problem with the alarm box made it impossible for the people in the area to call for the fire department

44、. By 9:30 pm, the entire block was blazing. In another 3 hours, there were fires all over Chicago. The heavy wind coming from the lake only made the fire bigger. It would be another day before the fire would be completely out. By that time, 17,500 buildings had been burned.,Whats the text structure?

45、,Chronological order,Daniel Sullivan was the first to notice the flames coming from the OLeary barn at around 8:30 pm on October 8. A problem with the alarm box made it impossible for the people in the area to call for the fire department. By 9:30 pm, the entire block was blazing. In another 3 hours

46、, there were fires all over Chicago. The heavy wind coming from the lake only made the fire bigger. It would be another day before the fire would be completely out. By that time, 17,500 buildings had been burned.,Whats the text structure?,Chronological order,Daniel Sullivan was the first to notice t

47、he flames coming from the OLeary barn at around 8:30 pm on October 8. A problem with the alarm box made it impossible for the people in the area to call for the fire department. By 9:30 pm, the entire block was blazing. In another 3 hours, there were fires all over Chicago. The heavy wind coming fro

48、m the lake only made the fire bigger. It would be another day before the fire would be completely out. By that time, 17,500 buildings had been burned.,Whats the text structure?,Chronological orderNotice how the paragraph shows how events happen in time order,Daniel Sullivan was the first to notice t

49、he flames coming from the OLeary barn at around 8:30 pm on October 8. A problem with the alarm box made it impossible for the people in the area to call for the fire department. By 9:30 pm, the entire block was blazing. In another 3 hours, there were fires all over Chicago. The heavy wind coming fro

50、m the lake only made the fire bigger. It would be another day before the fire would be completely out. By that time, 17,500 buildings had been burned.,Whats the text structure?,Understanding that this text is written in chronological order can help you to understand how the Great Fire started,Daniel

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