You may have heard of the saying “YOLO” . It _______ “You Only Live Once”.

Teenagers often use this saying. Having a YOLO attitude (态度) means that you make the most of every day. It means you enjoy your life, _______ you only get one. You might do lots of fun activities, or always _______ your friends.

US rapper (说唱歌手) Drake used YOLO in his song The Motto. Then the saying became even more _______. Children like to use _______ like this when they talk to their friends online.

But scientists think it might be more than just a popular saying. They made two groups of students from a United States university do a(n) _______.

Group A was told to pretend (假装) they were _______ to a new city in 30 days, and Group B was not. Group A did lots of activities and spent time with their families and friends. Group B did not _______ their behavior (行为).

At the _______ of the experiment, the students did a survey (调查). It was to find out how ________ they were. Group A was much happier. The survey shows that having a YOLO attitude is good for your health!

Once upon a time, there was a beautiful girl. She lived with her father in the forest. One day, a lion came to their house and told the father to let the girl _________ him. The father and the girl were very _______ of the lion. If the girl did not get married to the lion, the lion might be very angry and kill them _________. So the father had to find a way of _________ the lion.

After thinking a lot, he said to the lion, “I am _________ to marry my daughter to you, but she is very afraid of your teeth and claws. If you let me take _________ all out, you can marry her. I am sure my daughter can make a good _________.” “No problem!” the lion said. So he let the father take out all his _________ and claws. When the lion was toothless and clawless, the father began hitting him _________ a heavy stick. The lion could not defend (保卫) himself __________ he had no teeth or claws.

Finally, he ran away. He was also unable to kill animals for food. So he soon died.

Peter and Joe lived next to each other. Both of them grew many different _________ in their gardens. Peter _________ watered his plants and didn’t pay a lot of attention (注意力) to them. But Joe was very careful with his plants and watered them often. Peter’s plants were small, but still looked okay,   _________ Joe’s plants were much bigger and greener.

One night. there was a heavy storm (暴风雨). The next morning, both of the two men _________ to check on (检查) their gardens. Joe saw that his plants had been pulled from the ground and totally (完全) died. But there was _________ wrong with Peter’s. Joe was _________ and asked Peter, “We both grew the same plants and I cared for my plants better than you did. How could your plants still be okay?” Peter smiled, “Because you gave your plants too much attention and care. You made it too easy for them to _________ I gave my plants just a little bit of water, so they had to grow deeper to take in more water. That is _________ my plants didn’t die.”

Sometimes, too much care can make us become weak and have fewer chances to be strong.