English Language Arts
Grade 7
15 min
Words with sub-
Words with sub-
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Introduction & Learning Objectives
Learning Objectives
Define the prefix 'sub-' and explain its primary meanings.
Identify words containing the prefix 'sub-'.
Determine the meaning of unfamiliar words by analyzing the prefix 'sub-' and their root words.
Use context clues in conjunction with prefix knowledge to infer word meanings.
Construct sentences using words with 'sub-' correctly and appropriately.
Recognize how the prefix 'sub-' contributes to the overall meaning of a text.
Ever wondered what 'submarine' and 'subway' have in common? 🤔 They both go *under* something!
In this lesson, we'll dive deep into the prefix 'sub-,' discovering how it changes word meanings and helps us understand complex vocabulary. Mastering ...
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Key Concepts & Vocabulary
TermDefinitionExample
PrefixA word part added to the beginning of a root word to change its meaning.In 'unhappy,' 'un-' is the prefix.
Root WordThe basic part of a word that carries the primary meaning and cannot be broken down further without losing its core sense.In 'submarine,' 'marine' is the root word, meaning 'of the sea'.
'sub-'A common prefix with primary meanings of 'under,' 'below,' or 'beneath,' but can also mean 'less than,' 'secondary,' or 'part of a larger whole.''Subway' means a way *under* the ground.
Context CluesHints or information within a text that help readers understand the meaning of unfamiliar words.If a sentence says, 'The fish wi...
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Key Rules & Conventions
Primary Meaning of 'sub-'
The prefix 'sub-' most commonly conveys the idea of 'under,' 'below,' or 'beneath' in relation to the root word.
This rule applies when the action or state described by the root word occurs physically or figuratively underneath something else. For example, 'subterranean' means 'under the earth'.
Secondary Meanings of 'sub-'
Beyond 'under,' 'sub-' can also indicate 'less than,' 'secondary,' 'almost,' or 'part of a larger whole.'
This rule helps interpret words where the 'under' meaning isn't literal, such as 'substandard' (less than standard) or 'subcommittee' (a secondary commi...
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Challenging
Read the passage: 'The city was a maze of subterranean tunnels. The subculture that lived there had its own subtle language, a sub-dialect of the city's main tongue. Their existence was a sub-plot in the grander story of the metropolis.' How does the author's repeated use of words with 'sub-' contribute to the mood of the passage?
A.It creates a mood of secrecy, hiddenness, and life existing beneath the surface of the ordinary.
B.It creates a mood of joy, celebration, and openness.
C.It suggests that the city and its people are of poor, substandard quality.
D.It makes the passage feel futuristic and technologically advanced.
Challenging
The Latin root 'vertere' means 'to turn.' Based on your knowledge of morphology and the prefix 'sub-,' what would be the most logical definition for a newly created word, 'subvert'?
A.To turn something into a smaller version of itself.
B.To turn something over from above.
C.To turn something around quickly.
D.To turn against or undermine an established system from beneath.
Challenging
Which of the following sentences uses a word with the prefix 'sub-' most precisely and effectively to convey its meaning?
A.The submarine sandwich was very sub-par.
B.The hero had to subdue his fear before entering the dragon's lair.
C.I am going to subtract my name to the list of volunteers.
D.The subway was very subtle and hard to find.
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