LEARNING TASK M5 LA 1
Task 1: Understanding the nature of explanation texts
Explanation Text
The Social Function of Explanation Text
Explanation text is a kind of text that has social purpose to
explain how and why something works or happens.Explanations play a valuable
role in building and storing our knowledge. They are a central part of
scientific writing and expressing scientific expertise.
There are two types of explanations text.
·
The first type explains an occurrence or how
something works.
For example: “How a kettle boils water”; “How a television
works”; “How avalanches occur” etc.
·
The second type explains why things happen.
For example: “Why objects expand”; “Why we have a water
cycle”, etc.
The Text Structures of Explanation Text
·
Title
Explanations have a title that prepares and leads the reader
into the text.
·
General statement
The first paragraph has general statement that introduces or
identifies the scientific or technical phenomenon.
·
Sequenced statements
The explanation sequence should be made up of a series of
happening or actions that are the focus of the explanation text type. The
logically sequenced paragraphs explain why or how something happens rather
than focusing on an object. Generally, there is no human involved in the
process of events in an explanation.
·
Concluding statement
An optional concluding statement ca tie up the explanation.
·
Labeled diagrams and flow charts
Labeled diagrams and flow chart can be used to clarify
information or to add additional information not included in the explanation.
In particular, in scientific texts accurate diagrams and illustrations are
important to support the text.
Language Features of Explanation Texts
·
Vocabulary: general nouns, technical
language, noun groups
·
Grammar: action verbs, ‘timeless’ present
tense, passives, adverbial phrases, causal & temporal connectives.
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- Explanation Text Quiz
Based on
your viewing and reading, decide whether the following statements about
explanation texts are TRUE or FALSE. Put a üin the box provided when you
think the statements are TRUE, and a X when you think they are
FALSE.
Task 2: Getting the general pictures of explanation texts
No
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STATEMENTS
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TRUE (ü)
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FALSE (X)
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1
|
ü
|
||
2
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An example of natural
explanation text would have a title like ‘How ice flowers are formed’.
|
ü
|
|
3
|
An example of
mechanical explanation text would be a short text titled ‘How to prepare
pancakes’.
|
X
|
|
4
|
An explanation text
begins with a general statement that introduces the phenomenon to discuss in
the text.
|
ü
|
|
5
|
The first paragraph has
a general statement that introduces or identifies the scientific or technical
phenomenon.
|
ü
|
|
6
|
The body of an
explanation text consist of a series of sequenced statements about the
process explained.
|
ü
|
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7
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‘present tense’ is used
to describe actions involved in the process.
|
ü
|
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8
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Connectives such
as first, then, after, finally, so, as a consequence are
used to show cause and effect relationship in explanations
|
ü
|
|
9
|
The use of passive
voice is optional in explanations.
|
X
|
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10
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Graphic organizers (GO)
such as tables, charts and diagrams are
commonly used in explanations as decorations.
|
X
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Task 2: Getting the general pictures of explanation texts
Text 2
Study Text 2 and answer Questions 1-2 that follow.
Answering Questions 1 & 2
Text 3
Answering Questions 3 & 4
Identifying the Noun phrase and verb phrase of sentences in the text above
Answering Questions 1 & 2
No
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Questions
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Answers
|
1
|
What is the author’s purpose?
A
To explain a mechanical occurrence
B
To explain a technological occurrence
C
To explain a natural occurrence
D
To explain why something occurs
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C.
To explain a natural occurrence
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2
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Following are natural processes that lead to
mountains formation except
A
Fold Earth’s crust
B
Volcanic eruption
C
Fracturing Earth’s crust
D
Stretching and expanding mountains
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D.
Stretching and expanding mountains
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Text 3
Read Text 3 below to answer Questions 3-4.
Answering Questions 3 & 4
No
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Questions
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Answers
|
3
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What
is the author’s purpose?
A ‘how’
bottles are recycled
B ‘why’ bottles are recycled
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A. ‘how’
bottles are recycled
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4
|
What
is the general statement that introduce the purpose of the
text?
A New glass bottles are made mainly of silica
sand.
B The sand is melted in a furnace, at a very
high temperature.
C Recycled glass bottles are made in a very
similar way but cost less and use up fewer natural
resources.
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C. Recycled glass bottles
are made in a very similar way but cost less and use up
fewer natural resources
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Task 3: Describing actions using the passives
Passive Exercises
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Text 4
The diagram below shows a simple system that turns dirty water into clean water. Identify the Noun phrase and verb phrase of sentences in the text. Write them in the table provided. The first and second pairs have been located for you.
Identifying the Noun phrase and verb phrase of sentences in the text above
-
NoNoun PhraseVerb Phrase
the drum and barrelare placed
These itemsare linked1the filteris made2a tapis fixed3dirty wateris poured4the tap in the drumis turned5clean drinking watercomes out6natural materials and basic equipmentcan be used
Task 4: Identify stages of a process in explanation texts
Text 5
Look at the picture in the text. Describe stages of the process by matching statements A-G with the number 1-7 in the picture. The first stage has been identified for you.
Look at the picture in the text. Describe stages of the process by matching statements A-G with the number 1-7 in the picture. The first stage has been identified for you.
Recycling Glass Bottles |
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New glass
bottles are made mainly of silica sand. The sand
is melted in a furnace, at a very high temperature.
Recycled glass bottles are made in a very similar
way, but cost less and use up fewer natural resources.
The process
begins when people take their used bottles and jars to a
bottle bank. Next, the bottles and jars are taken
by lorry to the recycling plant. At the plant,
bottle tops and lids are removed. After that, the
glass is crushed into small pieces.
The crushed
glass is then sent by lorry to a bottle factory.
Here, it is mixed with a small amount of silica
sand. It is then melted in a furnace, at a lower
temperature than new glass.
Finally,
the hot liquid glass is drawn out of the furnace and fed
into machinery that makes it into glass bottles.
Recycled glass is as pure
and as strong as new glass. New
glasses are sent to the market.
Glass can
be recycled many times without
losing its quality.
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