Physical exercise is good for our mind，body and spirit.Today，working out （鍛煉） through online videos is becoming very popular.We can work out anytime anywhere.
   One of my friends，Li Fei，followed short workout videos to do daily exercise. "I feel like working out with my friends，which encourages me to hold on to the last minute." she said.Another friend of mine，Michael，told me that workout videos let him feel so comfortable. "I have a fear of working out at the gym （健身房） because I don't like being watched by others." he said.
   With their examples，I decided to give it a try.When I told my plan to my elder sister，a P.E.teacher，she reminded me that workout videos could be helpful，（A）         ，it might still carry some problems.
   "Without being with someone in person，you will be less willing（愿意的）to work out to your best."My sister said to me. "Well，if you really want to have a try.First，choose proper programs or videos.And then ask your friends for advice.Their experiences can give you a good sight.Anyway，don't be addicted （沉迷的） to it.You should try different ways to work out to be healthy."
   At her suggestions，I finally followed an online workout program.I felt it very practical and helpful when I put in the right amount （量） of work along with a strong will.But it can be difficult sometimes when I'm too lazy or too busy to stick to it.

（1）Why is working out through online videos becoming popular today？

Because we can work out anytime anywhere.

Because we can work out anytime anywhere.

（2）Which way to work out doesn't Michael like？

He doesn't like working out at the gym.

He doesn't like working out at the gym.

（3）請(qǐng)?jiān)?（A） 處橫線上填一個(gè)恰當(dāng)?shù)膯卧~。

however。

however。

（4）What are my sister's suggestions？Please list at least two. （請(qǐng)說(shuō)出兩條建議）

Choose proper programs or videos.Don't be addicted to it.

Choose proper programs or videos.Don't be addicted to it.

（5）What is the passage about？

The popularity of workout videos and its advantages and problems.

The popularity of workout videos and its advantages and problems.