5. Are you a member of fitness club?
你是健身俱樂部的成員嗎？
還能這樣說：
Do you belong to the health club?
Are you admitted as a member of the fitness club?
諺語：
He is not fit to command others that cannot command himself.
正人先正己。
6. I find great fun in aerobic activity.
我發現有氧健身活動其樂無窮。
還能這樣說：
Aerobic activity is very interesting.
Aerobic activity is full of fun.
應用解析：
like fun 有力地；迅速地；十分；
have fun 作樂，玩樂；
do not see the fun of 不以為有趣；
for fun 開玩笑，不是認真的；
make fun of sb. 嘲笑；取笑
7. We should warm up before doing some exercises.
開始做運動前，我們都應該熱身。
還能這樣說：
We should do warm-up when we begin to do some exercises.
Each time we work out we should begin with warm-up exercises.
諺語：
A borrowed cloak does not kept one warm.
借來的斗篷不暖身。
8. Bodybuilding is becoming more and more popular in my town.
健身在我家鄉變得越來越流行。
還能這樣說：
It is very popular to build up bodies in my town.
Working out is becmoing increasingly popular in my town.
應用解析：
come to town 到城里來；到場；
hit town 來到城里；
the sea-born town 水都威尼斯；
out of town 不在城里；在鄉下