Grammar, Summary, Vocabulary Development, Words For The Week 3 SS2 English Studies Lesson Note
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GRAMMAR: AFFIXATIONÂ
Prefixes As Word ExtensionsÂ
Words can be grouped under various headings according to their forms, sounds, meanings and so on. One major source of word formation is known as affixation. An affix is a letter or a group of letters added to the beginning or the end of a word to change its meaning or the way it is used.Â
Affixation can occur in two forms, namely: prefix and suffix.
- Prefixes
A prefix is a letter or a group of letters placed before a root word to modify its meaning. A prefix added to a word usually does not change the word class( the part of speech) of the root word. E.g: dis-, out-, un-, non-, mis-, il-, im-, bi-, extra-, super-,mal-, fore-, poly-, mono-, under-,etc.
Knowing what a prefix means will help one understand the word to which the prefix is added.
For example
     Prefix   meaning     Example
- Anti-     against     anti-social
- Un-      not        unhappy
- Mono-   one        mono-tone
- Re-     back        return
- Bi-      two        bicycle
NOTE:
Some prefixes have negative implications. They are used to form the antonyms of the root word. For example:
Prefix     Word        Antonym
- Un-     Lawful      Unlawful
- Il-      legal        illegal
- Ir-     Regular      Irregular
- Im-    Possible     Impossible
- In-    Equality     Inequality
- Dis-   Advantage  Disadvantage
- Non-  Profit       Non-profit
ASSIGNMENT
Use a prefix to form the antonym of the words below;
- Modest
- Behave
- Dote
- Logical
- Regulate.
 VOCABULARY DEVELOPMENT: WORDS ASSOCIATED WITH INDUSTRIESÂ
- Assembly: The process of putting together different parts to create a finished product.
- Automation: The use of machines to perform tasks that would otherwise be done by humans.
- Cad/cam: Computer-aided design and computer-aided manufacturing. These are technologies that use computers to design and manufacture products.

4. Engineering: The application of science and mathematics to solve practical problems.
- Factory: A building or group of buildings where goods are manufactured.
- Inspection: The process of checking products to make sure they meet quality standards.
- Laboratory: A place where scientific experiments are conducted.
- Machinery: Tools and equipment used in manufacturing.
- Manufacturing: The process of transforming raw materials into finished goods.
- Quality control: The process of ensuring that products meet quality standards.
- Testing: The process of evaluating products to make sure they meet performance standards
WORDS FOR THE WEEK
Cherish, Capricious, Eschew, Perusal, Renunciation, Rhapsodize, Spurious, Tenable, Catalogue, Turgid, AntediluvianÂ