Lesson 10: Go Greenسبق 10:
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نظرثانی منصوبہ
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Revision Plan — Unit 10
Go Green
Subject: English | Class: 4 | Series: Leeds (SNC 2020)
Revision Duration
1 period (40 minutes)
Quick Recap — Go Green (10 minutes)
Key Facts about Global Warming:
- What is global warming? The warming up of the earth.
- What causes it? Water vapour from air conditioners, carbon dioxide and methane from vehicles and factories.
- Effects: Destroys the ozone cover, rises earth's temperature, rises sea levels, reduces summer streams, makes species extinct, eradicated diseases return.
- Fossil fuels: Coal, gas, and petrol.
- How to reduce global warming:
- Use eco-friendly vehicles (bicycles, tricycles, cycle rickshaws)
- Use public transport, walk short distances
- Plant more trees (absorb CO2, release oxygen)
- Reduce plastic — use cloth and jute bags
- Recycle plastic
- Minimise use of fossil fuels and home energy
- Decay times: Cotton rags (1–5 months), Paper (2–5 months), Plastic bags (10–20 years), Artificial fibre clothes (30–40 years), Leather shoes (25–50 years)
- Abdullah's plan: Form an Eco club, create a plastic-free zone, plant saplings, each house cares for two saplings.
Activity: True/False quick quiz about global warming facts.
Vocabulary Review (5 minutes)
| Word | Meaning | Example Sentence |
|---|---|---|
| attention | the act of listening | The news caught their attention. |
| global | relating to the whole world | Global warming affects every country. |
| extinct | dead, lost | Some species may become extinct. |
Grammar Revision (15 minutes)
Long and Short Vowel Sounds
| Vowel | Short Examples | Long Examples |
|---|---|---|
| a | apple, sack, ant | grapes, rain, acorn |
| e | net, hell, bell | eagle, feel, leaf |
| i | igloo, insect, fish | island, lime, iron |
| o | dog, ostrich, frog | potato, boat, rose |
| u | sun, cub, duck | music, cute |
Rule: Long vowels say their own name. Short vowels do not.
Anagrams
Rearrange letters to make a new word:
- bread → beard
- begin → being
- chin → inch
- tar → rat
- grin → ring
- dear → read
- lake → leak
- act → cat
Homophones
Words that sound the same but have different spellings and meanings:
| Word 1 | Word 2 | Meanings |
|---|---|---|
| cell | sell | prison room / to trade |
| lead | led | a metal / past of "lead" |
| hole | whole | an opening / entire |
| male | letters / boy/man | |
| hair | hare | on your head / a rabbit |
| son | sun | a boy child / the star |
| aunt | ant | parent's sister / an insect |
| ate | eight | past of "eat" / the number 8 |
Past Continuous Tense
Used for temporary activities in the past.
| Type | Formula | Example |
|---|---|---|
| Positive | Subject + was/were + Verb-ing + Object | She was reading a book. |
| Negative | Subject + was/were + not + Verb-ing + Object | She was not reading a book. |
| Interrogative | Was/Were + Subject + Verb-ing + Object? | Was she reading a book? |
- Use was with: I, he, she, it
- Use were with: we, you, they
Quick Practice:
- The shopkeeper (was not / were not) closing his shop. → was not
- We (was / were) riding bicycles yesterday. → were
- (Was / Were) the birds flying over the lake? → Were
- Rashid (was / were) playing cricket. → was
Oral Communication Review (5 minutes)
Facial Expressions and Tone:
- Sadness — drooping mouth, soft voice
- Anger — furrowed brows, loud voice
- Joy — wide smile, cheerful voice
- Surprise — wide eyes and open mouth, rising voice
Quick Activity: Teacher says a sentence, students say it with different emotions.
Common Mistakes to Avoid
| Mistake | Correction |
|---|---|
| Using "were" with "he" or "she" | Use "was" with he, she, it (singular) |
| Confusing "sun" and "son" | sun = the star; son = a boy child |
| Writing "gloabl" | Correct spelling: g-l-o-b-a-l |
| Saying short "a" in "grapes" | "Grapes" has a long "a" sound |
| Confusing anagrams and abbreviations | Anagram = rearranging letters; Abbreviation = shortening a word |
| Writing "exstinct" | Correct spelling: e-x-t-i-n-c-t |