Lesson 1 PowerPoint

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Building
Vocabulary
from Word
Roots
Lesson 1:
Latin Prefix ad-
Did you know?
Over sixty percent of all words in the
English dictionary are based on Greek or
Latin roots?
Ninety percent of English words with
more than two syllables come from Latin
and Greek.
You do already
know how
words work.
Make a list of
everything you
already know!
What We Already Know
• Prefix- almost always at beginning of word,
provides direction, negates a word by meaning
“not,” or intensifies the meaning of the word
by adding the notion of “very.”
• Root- (base)is the smallest part of the word
that contains meaning.
• Suffix- appears at the end of the word,
indicates the part of speech.
adThe Latin
prefix admeans “to,
toward, add
to”
assimilation
Assimilation is defined as becoming like
something else.
Sometimes when a prefix meets a base, it
undergoes a spelling change: the final
consonant of the prefix “turns into” or
assimilates and becomes the first consonant
of the base. The result is a double
consonant near the beginning of the word.
ad + similate = assimilation
Words beginning with assimilated adare easily recognizable because they
usually have double consonants
ad + celerate = accelerate
ad + preciate = appreciate
ad + traction = attraction
* Try saying both forms of the word.
Notice how much easier it is to say the
latter?
AdAd + tract (pull, draw, drag) = attract
(to pull or draw toward)
Ad + grav (heavy) + ate (act on in a specific
way) = aggravate
(to add to the heaviness/seriousness of a
situation)
Ad + hes (cling, stick) + ive (tending to do
something) = adhesive
(a substance that tends to stick to a surface)
Practice
How do the bolded words use the meanings of to, toward, add to? Use
context clues to help create a definition.
1. The surgery on his spine was able to alleviate the pressure on the
nerves, freeing him from daily pain.
2. To show how much she appreciated the babysitter’s excellent care of
her children, the mother wrote a thank you card.
3. The witness taking the stand was asked to raise his hand and affirm
that he would tell only the truth.
4. Ana was unable to assimilate into the Brasilian culture in Rio de
Janeiro since she did not speak Portuguese.
5. Let me append a note to the bottom of your homework, telling your
teacher that the dog actually did try to eat this page.
Practice
1. The surgery on his spine was able to alleviate the pressure on the
nerves, freeing him from daily pain. To add to the lightness of/to
reduce the pressure of something
2. To show how much she appreciated the babysitter’s excellent care of
her children, the mother wrote a thank you card. To add to and
recognize the value of
3. The witness taking the stand was asked to raise his hand and affirm
that he would tell only the truth. To add to the firmness or strength of,
to emphasize the truth of
4. Ana was unable to assimilate into the Brasilian culture in Rio de
Janeiro since she did not speak Portuguese. To add to the similarity; to
become more alike
5. Let me append a note to the bottom of your homework, telling your
teacher that the dog actually did try to eat this page. To hang on, to
add to
Practice
Use the definitions of the bases, prefixes, and suffixes, if
provided, and the context of the sentence to determine the
meanings of the bolded words.
The aggressor continued to follow me down
the darkened alley, forcing me to accelerate
my pace in an effort to escape him. As several
witnesses who saw the chase can attest, his
intention seemed to be to annihilate me and
abbreviate my life by several decades.
(the base gres means step; the base celer means
speed; the base testis means witness; the base nihil
means nothing, the base brev means short)
Practice
The aggressor continued to follow me down the
darkened alley, forcing me to accelerate my pace in
an effort to escape him. As several witnesses who
saw the chase can attest, his intention seemed to be
to annihilate me and abbreviate my life by several
decades.
• Aggressor-one who steps towards another
• Accelerate-to add to the speed of something
• Attest-to witness to the truth
• Annihilate-to add to the “nothingness”; to cause
something to cease to exist; to kill
• Abbreviate-to add to the brevity or shortness
Practice
Use the definitions of the bases, prefixes, and suffixes, if
provided, and the context of the sentence to determine the
meanings of the bolded words.
The doctor was forced to add an annotation to the
patient’s chart that a particular prescription was not
appropriate for her. He stated that the addictive
properties of the medication, combined with the
ease of access to more pills, combined to create a
dangerous situation.
(the base note means to mark; the base prop means
to own; the base dic means to say or proclaim; the
base ces means to move)
Practice
The doctor was forced to add an annotation to the
patient’s chart that a particular prescription was not
appropriate for her. He stated that the addictive
properties of the medication, combined with the
ease of access to more pills, combined to create a
dangerous situation.
• Annotation—to add a note to
• Appropriate—to add to what one owns; to belong
to someone
• Addictive—adding to the favor of something; to
desire it more and more
• Access—to move towards; to be able to reach
Test Prep
ad- --this prefix means ______, ______, ______
The use of alliteration in the tongue twister
“Peter Piper picked a peck of pickled
peppers” is one of the main reasons that it is
so fun to say quickly. (the base liter means
letter)
• Define the word alliteration using a
definition of the prefix
Test Prep
ad- --this prefix means to, toward, add to
The use of alliteration in the tongue twister
“Peter Piper picked a peck of pickled
peppers” is one of the main reasons that it is
so fun to say quickly. (the base liter means
letter)
• Define the word alliteration using a
definition of the prefix
• To add a word that uses the same letter
Test Prep
ad- --this prefix means ______, ______, ______
After a long flight and what seemed like an
even longer wait in the customs line, the
French official affixed his stamp to my
passport and welcomed me to Paris. (the base
fix means attach)
• Define the word affixed using a definition
of the prefix.
Test Prep
ad- --this prefix means to, toward, add to
After a long flight and what seemed like an
even longer wait in the customs line, the
French official affixed his stamp to my
passport and welcomed me to Paris. (the base
fix means attach)
• Define the word affixed using a definition
of the prefix. Attached or secured
physically to something
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