# Unit 3: Global warming

> Từ vựng và mẫu câu Unit 3 (Global warming), English Discovery 11: … is caused by … / We must act now to ….

Source: https://olyclass.com/library/tb-english-discovery-g11-u03/

- Subject: English
- Level: B1
- Textbook unit: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=tb-english-discovery-g11-u03
- Copy and edit it: https://olyclass.com/library?copy=tb-english-discovery-g11-u03
- Games it plays well in: [Claw Machine](https://olyclass.com/classroom-games/claw-machine/), [Tile Grab](https://olyclass.com/classroom-games/tile-grab/), [Dare Board](https://olyclass.com/classroom-games/dare-board/), [Lucky Wheel](https://olyclass.com/classroom-games/lucky-wheel/)

## Words in this game

- **atmosphere**: The atmosphere protects life on Earth.
- **emission**: Each emission from a car pollutes the air.
- **fossil fuel**: Coal is a fossil fuel.
- **climate change**: Climate change is a big problem today.
- **deforestation**: Deforestation destroys the homes of many animals.
- **decay**: Old leaves decay on the ground.
- **trap**: Some gases trap heat near the Earth.
- **vapor**: You can see vapor above hot water.
- **heatwave**: We stayed inside during the heatwave.
- **surface**: The surface of the lake is calm.
- **emit**: Factories emit a lot of smoke.
- **water shortage**: A water shortage can make life difficult.

## Questions

1. Global warming is ___ by too much carbon dioxide. (cause / caused / causes / causing)
   Answer: caused
2. Heatwaves are caused by ___. (cold snow / fresh rain / global warming / small waves)
   Answer: global warming
3. We must act now ___ the Earth. (saved / saving / to save / we save)
   Answer: to save
4. We must act now to reduce ___ from cars and factories. (emissions / heatwaves / surfaces / vapors)
   Answer: emissions