Introduction: Our Changing World

Welcome to one of the most exciting parts of your English curriculum! In this chapter, we explore Environment, Weather, Science, and Technology. These aren't just school subjects; they are the topics that dominate our news, our social media feeds, and our daily lives. Whether you are reading a weather warning on your phone or learning how to use a new gadget, you are using the skills we will cover here. Don't worry if these topics seem "science-heavy." We are focusing on communication—learning how to read instructions, describe the world around us, and share our opinions on big issues like climate change.

1. Talking About the Weather and Environment

At this level, you need to go beyond just saying "It's sunny." You should be able to describe environmental changes and understand warnings.

Key Vocabulary

  • Environment: Global warming, pollution, recycling, renewable energy, habitat.
  • Weather: Humidity, thunderstorm, forecast, temperature, seasonal.
  • Disasters/Hazards: Flood, drought, earthquake, typhoon, landslide.

Understanding Hazard Warnings (ประกาศเตือนภัย)

When reading warnings (on the internet or in public places), look for Modal Verbs that tell you how urgent the situation is:

Must / Have to: Used for rules and survival. "Residents must evacuate immediately."
Should / Ought to: Used for advice. "You should stay indoors during the storm."
May / Might: Used for possibility. "Heavy rain may cause flash floods."

Quick Review: The Weather "It"
Remember that when we talk about weather, we usually use "It" as a dummy subject. "It is pouring with rain" or "It will be humid tomorrow."

2. Science and Technology in Daily Life

You don't need to be an engineer to talk about technology! In English class, the focus is on User Instructions (คู่มือการใช้งาน) and Internet Information.

Following Instructions

To explain how a gadget works or how to perform a science experiment, we use Sequencing Connectives. These help the reader follow the steps in the right order:

1. First, plug in the device.
2. Second/Next, press the power button.
3. Then, wait for the blue light to flash.
4. Finally, connect it to your Wi-Fi.

Searching the Internet

When looking for science info online, use Skimming (reading quickly for the main idea) and Scanning (looking for specific numbers or names). Look for reliable "Search results" and "Keywords." Did you know? Using the right keywords is a skill! Instead of typing "Why is the sky blue?", a science researcher might search for "Rayleigh scattering atmosphere."

3. Grammar for Science and Environment

To speak and write effectively about these topics, you need a few specific "tools" from your grammar toolbox.

The Passive Voice

In science and environmental reports, the action is often more important than the person doing it. Active: People throw millions of plastic bottles away.
Passive: Millions of plastic bottles are thrown away. (This sounds more formal and factual).

Logical Connectives (Cause and Effect)

Environment and science are all about how one thing leads to another. Use these phrases:
  • Because of / Due to / Owing to: "The flight was cancelled due to the thick fog."
  • Caused by: "Global warming is caused by greenhouse gases."
  • So...that / Such...that: "The storm was so strong that trees fell down."

If-Clauses (Conditionals)

We use these to talk about possibilities in nature or technology: "If the temperature rises, the ice will melt." (Real possibility).

4. Comparing and Giving Opinions

In your exams, you might be asked to compare two types of technology or give an opinion on environmental issues.

Making Comparisons

Use comparative adjectives to look at two things: "Electric cars are quieter than petrol cars."
"Solar energy is more sustainable than coal."

Expressing Your Opinion

When discussing topics like "Should we ban plastic bags?", use these polite formulas:
  • "In my opinion, technology makes our lives easier."
  • "I believe that we must protect our oceans because..."
  • "I agree with the report, but I think it will be difficult to change."
Key Takeaway: When giving an opinion, always provide a reason or an example. This moves your English from a basic level to a B1 "Independent User" level!

5. Reading Non-Linear Media

Science and environment topics often use graphs, charts, and tables.
  • Line Graphs: Usually show changes over time (e.g., rising temperatures).
  • Bar Charts: Compare different groups (e.g., CO2 emissions by country).
  • Pie Charts: Show parts of a whole (e.g., types of energy used in Thailand).
Common mistake to avoid: Don't just read the numbers. Look for the Main Idea. Is the trend going up, going down, or staying the same? Use words like increase, decrease, and stable.

Summary Checklist

- Vocabulary: Can you name 5 environmental problems and 5 types of weather?
- Instructions: Can you use First, Next, Finally to explain how to use a phone?
- Logic: Can you use because of or due to to explain a cause?
- Opinions: Can you start a sentence with "In my opinion..." and give a reason?

Don't worry if some of the scientific words are long! Focus on the connective words (like however, therefore, although) because they are the "glue" that holds your English together. Keep practicing, and you'll be communicating like a pro!