SUBJECT: ENGLISH LANGUAGE
CLASS: JSS 2 (GRADE 8)
TOPIC: CONSONANT SOUNDS (/θ/ and /ð/) & DETERMINERS
PART A: CONSONANT SOUNDS (/θ/ and /ð/)
In English, the letters "th" can be pronounced in two different ways. These are called Dental Fricatives because your tongue touches your teeth to make the sound.
1. The Voiceless /θ/ Sound
This sound is "quiet." Your vocal cords do not vibrate when you say it. It sounds like a soft hiss of air between your tongue and upper teeth.
- How to produce it: Place the tip of your tongue between your front teeth and blow air out.
- Examples:
- Think
- Three
- Bath
- Thief
- Mathematics
2. The Voiced /ð/ Sound
This sound is "noisy." Your vocal cords vibrate when you say it.
- How to produce it: Use the same tongue position as /θ/, but add your voice (like a "buzzing" sound).
- Examples:
- Father
- This
- That
- Brother
- Breathe (Note: Breath ends in /θ/, but Breathe ends in /ð/)
🟢 Illustration: The "Hand-on-Throat" Test
To tell the difference, place your fingers on your throat (Adam's apple area):
- Say "Think": You should feel no vibration at the start.
- Say "Father": You should feel a strong vibration when you get to the "th" sound.
Comparison Table
| Word with /θ/ (Voiceless) | Word with /ð/ (Voiced) |
|---|
| Thin | Then |
| Thigh | They |
| Mouth (Noun) | Mouthe (Verb) |
| Thank | There |
Common Error in Nigeria: Many students replace /θ/ with "t" (e.g., saying tink instead of think) or replace /ð/ with "d" (e.g., saying dis instead of this). Always remember to let the tongue peep out between the teeth!
PART B: DETERMINERS
What is a Determiner?
A Determiner is a word placed in front of a noun to clarify what the noun refers to. It "determines" or limits the noun.
- Example: The boy (Specific boy) vs. A boy (Any boy).
Types of Determiners and Their Uses
1. Articles
These are the most common determiners.
- Indefinite (a, an): Used for non-specific things.
- Example: I saw a bird. (We don't know which one).
- Definite (the): Used for specific things.
- Example: Give me the pen on the table. (A specific pen).
2. Demonstratives
These point out specific nouns and show how near or far they are.
- This / These: For things near the speaker. (This book, these shoes).
- That / Those: For things far from the speaker. (That car, those clouds).
3. Possessives
These show who owns the noun.
- Examples: My, your, his, her, its, our, their.
- Example: This is my classroom. Their football is new.
4. Quantifiers
These tell us "how much" or "how many" without giving an exact number.
- Examples: Some, many, few, much, several, all, any.
- Example: There is some water in the pot. Many students are present.
5. Numbers and Ordinals
- Numbers (Cardinal): One, two, ten, etc. (I have two oranges).
- Ordinals: First, second, last. (He won the first prize).
🔵 Illustration: How Determiners Work in a Sentence
Observe how the determiner changes the meaning of the noun "Dog":
- A dog is barking. (One random dog)
- The dog is barking. (The specific dog we know)
- My dog is barking. (Ownership)
- That dog is barking. (Pointing to a dog over there)
- Every dog is barking. (All of them)
CLASSWORK EXERCISE
Section 1: Phonology
Underline the "th" sound in the following sentences and write whether it is /θ/ (Voiceless) or /ð/ (Voiced).
- My mother is a teacher. (______)
- I have a toothache. (______)
- Those boys are playing. (______)
- Wealth is better than health. (______)
Section 2: Determiners
Fill in the blanks with the correct determiner from the brackets.
- Can you pass me _________ bottle over there? (this / that)
- I don’t have _________ money left in my pocket. (many / much)
- _________ orange I ate was very sweet. (The / A)
- She forgot _________ umbrella at school. (her / his)
Summary Note:
- /θ/ is thin and quiet (Think).
- /ð/ is heavy and vibrates (Father).
- Determiners always come before a noun to introduce it.