Class 8 English Grammar Exercise- Unit 3: Environment - The Lesson “Deforestation"

Click 👉 Questions and Answers: Unit-3: The Lesson: Deforestation

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 Use of English/Grammar Exercise 

Unit 3:

" Environment "

(National Book Foundation - New Book/New Syllabus Based on Single National Curriculum Pakistan 2023-2024 and Onwards)

(Class 8 English Notes for 8th Centralized Exam 2023 and onward, FDE, Islamabad )

The Lesson  “Deforestation"

Use of English:

2. Fill in the blanks with the correct words.

a. Only 18% percent of the world’s forests are protected against destruction.

b. Every minute, 2400 trees are felled.

c. Every year, around 50,000 species (including plants, animals, and insects) are lost due to deforestation.

d. Forests act as carbon sinks by absorbing atmospheric CO2 during photosynthesis.

e. Forests cover 31 percent of the Earth’s surface or around 4.06 billion hectares.

f. Between 2010 and 2015,  12 Million of forest hectares of forest were lost each year, representing a 22.58 percent decrease from 1990 to 2010.

Active Voice and Passive Voice.

1. Identify the following sentences as active voice or passive voice.
a. For their own need, trees are cleared by humans. 

Passive voice.

b. Biodiversity is critical to the ecosystem's overall health. 

Active voice.

c. Many living species rely on forests for their survival.

Active voice.

d. They take CO2 from the atmosphere and generate oxygen, which is required by living things.

Passive voice.

e. Volcanic eruptions, for example, can burn away the wooded lands surrounding the volcano.

Passive voice.

2. Change the following sentences from active to passive.

1. Agriculture and cattle grazing affect deforestation.

1. Deforestation is affected by agriculture and cattle grazing.

2. Tree roots are attached to the soil bedrock.

2. The soil bedrock is attached by tree roots.

3. Flood can amplify the extent of erosion.
3. The extent of erosion can be amplified by floods.

4.  landslides are frequently associated with sloped terrain deforestation.

4. Sloped terrain deforestation is frequently associated with landslides.

3. Underline the correct option to complete the sentence.

a. We must (protect/protected by) the forest.
b. Forest destruction (caused/are caused by) storms, floods, and other natural disaster.
c. Parasites (kill/kill by) trees in the forest.
d. Lightning and other natural events can (start/started by) forest fires.

e. Forests act as carbon (sinks/sinks by) absorbing atmosphere CO2 during photosynthesis. 

Answers :
a. Protect
b. Caused
c. Kill
d. Start

e. sinks

4. Read the cause and write an effect. Then, write one full sentence that states the cause and effect.

Cause	a. People are cutting the trees.
Effect	There will be flooding everywhere.
Sentence	There were floods everywhere due to people cutting the trees.

 

Cause	b. people are dumping trash everywhere.
Effect	Garbage everywhere, and growing diseases.
Sentence	In cities, diseases are growing due to garbage everywhere.

 

Cause	d. more people are using polythene bags.
Effect	Deadly waste in landfills and the oceans.
Sentence	Plastic bags start out as fossil fuels and end up as deadly waste in landfills and the ocean.

 

Cause	e. many cars are releasing carbon monoxide.
Effect	Reduction of oxygen intake by man.
Sentence	Breathing in CO can cause headaches, respiratory problems, and even death if inhaled in large quantities

 

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Summary of poems: 

Unit-2: The poem “A Time to Talk”

Unit-2: The Lesson “Everyday it Happens”

Unit-2: The poem “Do it anyway”

Central Ideas of poems: 

Unit-2: The poem “A Time to Talk”

Unit-2: The Lesson “Everyday it Happens”

Unit-2: The poem “Do it anyway”

Unit-5: The poem “A Far Away Village”

Paraphrasing of poems: 

Unit-2: The poem “A Time to Talk”

Unit-2: The Lesson “Everyday it Happens”

Unit-2: The poem “Do it anyway”

Unit-5: The poem “A Far Away Village”

Source: English Book (National Book Foundation, Pakistan)

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