Ⅴ. 根据所给的提示词写句子。
★ How an invention changes life.
Example: (radio / spread)
→ The radio helped spread news around the world in seconds.
1. 3D printer / produce

2. Smart Cook / recipes

3. Super See glasses / see better

4. radio / enjoy music

5. my favorite invention / (Why)

1. The 3D printer helps produce many things quickly. 2. Smart Cook helps people find delicious recipes. 3. Super See glasses help people see better. 4. The radio helps people enjoy music anytime. 5. My favorite invention is the the mobile phone because it makes our life easier and more fun.

Ⅰ. 从方框中选择合适的词语,用其正确的形式完成短文。
choose invent use make protect
The radio is an important invention that connects people with the outside world. It plays a great role in people's daily life, especially before the popularity of TVs and computers.
The first practical radio 1. by Guglielmo Marconi in Italy in 1895. At that time, it 2. mainly from metal and simple electronic parts. Now, radios 3. by people around the world, and their working principle is simple: signals 4. by radios to play news and music. Besides, radios 5. to get information easily in some places, and they should be protected well because of their practical value. We should learn about the history of this great invention.

1. was invented 2. was made 3. are used 4. are chosen 5. can be used