5. I quite enjoy practising shadow boxing.
我非常喜歡練習太極拳。
還能這樣說：
Shadow boxing is my favorite.
I like shadow boxing.
應用解析：
the shadows of old age 老態；
the shadow of a name 虛名；
live in the shadow 隱姓埋名；
be afraid of one's own shadow 草木皆兵，膽小到極點
6. TaiChiChuan is a form of martial arts.
太極拳是武術的一種形式。
還能這樣說：
TaiChiChuan is a form of Chinese martial art.
Martial arts contains TaiChiChuan.
應用解析：
fill out a form 填表格；
take the form of 采取……的形式；
standardize a form 使一種形式標準化；
form from 由……組成，用……構成；
form after 按照……構成
7. Do you know if there are some relations between TaiChiChuan and Qigong?
你知道太極拳和氣功之間有什么聯系嗎？
還能這樣說：
Does TaiChiChuan have anything to do with Qigong?
Is there any relationship between TaiChiChuan and Qigong?
應用解析：
have relation to 和……有關系；
with relaton to 關于……；就……而論；
make relation to 提及；讀到；
relation by marriage 姻親，裙帶關系
8. I did fencing occasionally while I was at college.
我在大學時偶爾玩玩擊劍。
還能這樣說：
I did a bit of fencing while I was at university.
During my college life, I did fencing once a while.
應用解析：
fence round the point 避開問題的要點；
fence againt 防御……
off the fence 猶豫不決；
on sb.'s fence 幫助某人