Welcome to Global Challenges!

Hello! In this chapter, we are going to explore the language we use to talk about big problems that affect our entire planet—like environmental pollution and climate change. Learning this vocabulary isn't just about passing a test; it’s about having the "word power" to discuss the future of our world. Don't worry if some of these long words look scary at first; we will break them down into bite-sized pieces together!

Section 1: How New Words are Made

In English, we often build big words from smaller parts, almost like playing with Lego blocks. The syllabus highlights three main ways to build vocabulary for global challenges:

1. Affixation (Adding "Hooks")

We add a "hook" to the beginning (prefix) or the end (suffix) of a word to change its meaning.

  • Prefix Example: Ex- (means "out" or "away from").
    Exhale = To breathe out. (Think of ex-it, the way out!)
  • Suffix Example: -tion (changes a verb into a noun/the process of something).
    Civilisation = The process of human social development.

2. Compounding (Joining Two Words)

This is when we put two whole words together to make a new one.

  • Test + Tube = Test tube (A tool used in science to study global health or pollution).
  • Green + House = Greenhouse (Related to the "Greenhouse Effect").

3. Blending (The Word "Smoothie")

This is when we take pieces of two words and blend them together.

Did you know?

The word Smog is a blend of Smoke + Fog. It describes that thick, dirty air you sometimes see in big cities!

Quick Tip: If you see a long word, try to "un-clip" the prefix or suffix to find the root word you already know.

Key Takeaway: You can figure out the meaning of many "Global Challenge" words by looking at how they are built (Affixation, Compounding, and Blending).

Section 2: Talking About the Environment

The biggest global challenge we face is environmental pollution. Here are the key terms you need to know, grouped by their causes:

Key Vocabulary to Master:

  • Exhaust fumes: The dirty gases sent out by engines (like cars and buses).
  • Toxic chemicals: Poisonous substances that can harm people and nature.
  • Oil spills: When oil accidentally leaks into the ocean, harming sea life.
  • Deforestation: The process of clearing/cutting down wide areas of trees. (Notice the -tion suffix!)
  • Air-conditioners: A major source of energy use that contributes to rising temperatures.

Memory Aid: Think of De-forestation as "Destroying" the forest.

Key Takeaway: Most global challenges are linked. For example, deforestation leads to less oxygen and more carbon dioxide in our air.

Section 3: Explaining "Cause and Effect"

When we talk about global challenges, we need to explain why things happen. This is called a cause-and-effect relationship.

How to Connect Ideas:

To be a great English speaker, use these "connectors" to link a Challenge to its Cause:

  • Because of / Due to: "The Earth's temperature rises because of the frequent use of air-conditioners."
  • As a result of: "Oil spills happen as a result of equipment faults in tankers."
  • Since: "Since paper is made from wood, using more paper leads to cutting down more trees."

The "Fishbone" Analogy:

Imagine a fish skeleton. The "head" is the big problem (Environmental Pollution). Each "bone" pointing to the head is a cause (like exhaust fumes or oil spills). Using the connectors above helps you describe those bones!

Common Mistake to Avoid: Don't forget that "because" is followed by a subject and a verb (e.g., because it is hot), but "because of" is followed by a noun (e.g., because of the heat).

Key Takeaway: Use phrases like "as a result of" and "since" to show you understand what is causing a global problem.

Section 4: Comparing and Contrasting

Sometimes you need to compare two different challenges or look at two sides of an argument. Use these rhetorical functions to sound more professional:

1. Comparing (Finding Similarities)

  • Similarly: "Air pollution harms our lungs; similarly, water pollution can make us very sick."

2. Contrasting (Finding Differences)

  • However / On the contrary: "Some think pollution is only a city problem. However, it affects rural areas too."

Quick Review Box:
- Cause: Why it happens (Use: because of, since).
- Effect: What happens next (Use: as a result, therefore).
- Contrast: Showing the other side (Use: however, on the contrary).

Key Takeaway: Using words like "however" helps you present a balanced and thoughtful argument about world issues.

Summary of Global Challenges Vocabulary

You’ve done a great job! By focusing on how words are built and how to connect causes to effects, you are ready to discuss any global challenge. Remember:

  • Check the prefixes and suffixes.
  • Use cause-and-effect connectors to explain your points.
  • Be specific with terms like deforestation and exhaust fumes.

Keep practicing, and don't be afraid to use these new words in your next essay or discussion!