Unit 5: Inventions

 I.COMPLETE THE SENTENCES USING THE GIVEN WORDS

1. If you have an ___e-book reader____, you don't have to bring all those heavy books in your bag.  

2. Can I use a ______correction pen_____ to cover errors in my writing?  

3. A normal printer is more ____economical_______ than a 3-D printer.  4. You should use this pair of _____earbuds__________, others won't be able to hear it.  5. A ______digital camera_________ allows us to view and edit photos easily.  6. Don't worry. This is a ____handheld_ _____, so it's quite small and light.  

In the age of technology, laptop used widely. The laptop brings us a lot of benefits for our live. It is very versatile as it can do many things. Firstly, it is portable. Therefore, people can take it everywhere. Secondly, it is economical so everyone don't have to spend to much money to buy it. Besides, the laptop is a mean of entertainment. We can use it to listen to music, to chat with friends, to make video call with parents, to play games, etc. Moreover, we can use laptop for studying. For example, the laptop can be used for researching topics on the Website or typing the assignments as well. In short, laptop is one of the greatest inventions in the world as well as the best thing in our society.