# Unit 5: Inventions

> Từ vựng và mẫu câu Unit 5 (Inventions), Global Success 10: … was invented by … / Passive voice / What is it used for?.

Source: https://olyclass.com/library/tb-global-success-g10-u05/

- Subject: English
- Level: B1
- Textbook unit: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=tb-global-success-g10-u05
- Copy and edit it: https://olyclass.com/library?copy=tb-global-success-g10-u05
- Games it plays well in: [Lucky Wheel](https://olyclass.com/classroom-games/lucky-wheel/), [Picture Dice](https://olyclass.com/classroom-games/picture-dice/), [Ladder Climb](https://olyclass.com/classroom-games/ladder-climb/), [Paper Race](https://olyclass.com/classroom-games/paper-race/)

## Words in this game

- **3D printing**: 3D printing can make small toys quickly.
- **app**: I use an app to learn English.
- **apply**: You can apply this idea to your project.
- **button**: Press the button to start the machine.
- **charge**: I charge my phone every night.
- **communicate**: We communicate with friends by phone.
- **device**: This small device is very useful.
- **display**: The display on my phone is very bright.
- **driverless**: A driverless car has no driver.
- **e-reader**: My e-reader holds hundreds of books.
- **experiment**: We did an experiment in science class.
- **hardware**: The keyboard is a piece of hardware.

## Questions

1. The telephone ___ by Alexander Graham Bell. (invented / is inventing / was invented / were invented)
   Answer: was invented
2. What is a camera used for? (Cooking rice / Cutting paper / Taking photos / Washing clothes)
   Answer: Taking photos
3. Choose the correct form: Many apps ___ on phones every day. (are used / are using / is used / use)
   Answer: are used
4. Which sentence is correct for a past invention? (The light bulb invented by Edison. / The light bulb is invent by Edison. / The light bulb was invented by Edison. / The light bulb were invented by Edison.)
   Answer: The light bulb was invented by Edison.