Unit3(M4)
1. virtual(adj.)（通过计算机软件）虚拟的，模拟的；很接近的，实际上的
VR=virtual reality 虚拟现实
the virtual world
2. reality(n.)现实，事实 realize(v.)实现 in reality事实上
My dream will come true/be realized/become a reality.
3. presentation(n.)展示，介绍；颁发；提交，出示 present(v.)
give a presentation 进行展示/介绍 present sth to sb=present sb with sth 把…交给；颁发；授予 4. amaze(v.)使惊奇 5. passive(adj.)被动的 active(adj.)
play a passive role in… take an active part in… 6. user(n.)使用者
7. sightseeing(n.)观光，游览
go sightseeing
8. happiness(n.)幸福，快乐 9. headset(n.)头戴式耳机 10. 3-D(n.)三维，立体 11. add to 使增强，使增加，使扩大
The flowers added to the beauty of the room.
The bad weather added to the difficulty of driving. add A to B
Shall I add your name to