共 
電子是一種帶有負電的次原子粒子，通常標記為 e − {\displaystyle e^{-}\,\!} 。電子是第一代輕子，以重力、電磁力和弱核力與其它粒子交互作用。輕子是構成物質的基本粒子之一，無法被分解為更小的粒子。電子帶有1/2自旋，是一種費米子，根據包立不相容原理，任何兩個電子都不能處於同樣的量子態。電子的反粒子是正子，其質量、自旋、帶電量大小都與電子相同，但是電量正負性與電子相反。電子與正子會因碰撞而互相湮滅，並在這過程中，生成一對以上的光子。 
維基百科本書特色
The theme of Book Five is“Go shopping”.
The contents are “Looking for a parking space”, “Buying clothes”, “Buying shoes”, “Buying specialty”, “Have tasty snacks”,”Have cold drinks”, “Playing games”, “Bargain”, “Promotion event” and “On sale” . They all provide you the usage of the language when you do your daily shop.
“Shopping” is the most frequent daily activity in a city.Every time when go shopping, people may find that they encounter some problems such as: where to park, what to eat,what to do for entertainment, where to buy things in good prices. You may have an unhurried shopping with this book!
本冊主題是「去逛街」。內容有：找停車位、買服飾、買鞋子、買特產、吃小吃、喝冷飲、玩遊戲、殺價、促銷活動、減價等，為您提供日常逛街時需要用到的語言。
「逛街」是都市裡最常見的一種日常活動。逛街經常會遭遇到一些問題，像是：沒地方停車，要吃些什麼？買些什麼？玩些什麼？哪裡可以買到便宜的東西？擁有本書，大大方方逛街去。
光碟圓標文案
100堂中文課 100 Units Chinese
5 去逛街Go Shopping
1 Looking for a parking space
2 Buying clothes
3 Buying shoes
4 Buying specialty
5 Have tasty snacks
6 Have cold drinks
7 Playing games
8 Bargain
9 Promotion event
10 On sale
