Jenny Miller was a strange little girl. She liked to spend her time alone eating chocolate. Her parents were worried, so they took all the chocolate away.

    Jenny left her house to look for some chocolate. She found a small house full of glasses.

    Among all the glasses, a blue glass caught Jenny's attention. It was full of chocolate. There was also a card in it, saying," Change tears into chocolate. "

    Jenny was very excited. She took the blue glass and ran out of the house to look for someone crying. First, she met a little boy crying hard, and she collected his tears. The tears were quickly changed into chocolate. While Jenny was collecting the tears, she comforted(安慰)the boy. Finally, the boy stopped crying and they had a fun time together.

    Later, Jenny met a woman who had broken some plates and an old man who couldn't find his dog. They were so sad that their tears could not help falling down. Jenny collected their tears and made them happy again.

    Soon, Jenny realized that making people happy was even more important than finding chocolate. So she stopped collecting tears and began to help sad people. As a result, she became friend with them and lived a much happier life than before.

We all enjoy being part of a group — there's no better work than teamwork, right? Actually, I disagree. Teamwork can be hard. In fact, it was so difficult that I left my office job and started working from home on my own. It's much better fit for me, and it has made me think about why teamwork can make our job harder rather than easier.

Personalities(个性) can make teamwork difficult. There is often someone on the team that puts their needs first. The team often goes along with this person whose ideas might not be the best, just the loudest. Just one difficult personality can make teamwork hard. Combine(结合) several challenging personality types and it's even harder.

Not having enough time together can also make teamwork challenging. For example, I was once on a team where we never had enough time to meet as a group. To successfully work as a team, you need time together — and lots of it.

A final reason teamwork is difficult is because there is often no training on how to work on a team. You can't just put people in a room and expect them to work well with each other. You need to build trust with your team members. Think of football players: They aren't just given a ball and told to play. They practice, and they train.

Team can be hard, but working alone has its challenges, too. When my computer doesn't work, I don't have an IT person to turn to. When I have a great idea, I don't have anyone to share it with to see if it really is a great idea. Don't get me wrong — I still like my team of one and enjoy making all of important decisions myself. But now I realize what was wrong with the teamwork I did in the past and how good teamwork could be if done correctly. And that's useful information — because one day I might want to turn ME TEAM into a WE TEAM.

Scientists have found fossils of animals with tails since hundreds of millions of years ago. Back then, early fish used their tails as fins（鳍）to swim through oceans, and run away from enemies. {#blank#}1{#/blank#}

Scientists believe that dinosaurs used their tails to balance their heavy heads and bodies while they walked. {#blank#}2{#/blank#}

Similarly, kangaroos use their tails for balance. But their tail also works as their third powerful leg, it can help push them forward. In addition, a monkey's tail can also act like a hand, helping it to hold onto tree branches. 

{#blank#}3{#/blank#}But their roles are quite different. Most tailed insects use their tails to lay eggs. Birds use their tails to balance while sitting on trees. They also use tails to control directions. For many birds, a spread and raised tail is part of the lover-finding show. {#blank#}4{#/blank#}Male ones will spread their colorful tails to attract female ones. 

Besides, animal that live in groups, like wolves, use different tail position to show their rank. {#blank#}5{#/blank#} Scientists believe those tails disappeared around 20 million years ago. Once they started walking upright, we lost them because we had no use for them anymore. 

How do people from all over the world spend their free time? Let's have a look.

Making the transition (过渡) from junior high school to senior high school is an important stage for teenagers. During this {#blank#}1{#/blank#} (时期) of time, they will face a great number of challenges as they {#blank#}2{#/blank#} (对待) with the transition. {#blank#}3{#/blank#} (无论谁) takes this transition seriously will be likely to adapt to the new environment quickly.

Academic (学业) expectations {#blank#}4{#/blank#} (增加) as students move up to high school. The {#blank#}5{#/blank#} (课程) in high school become more difficult and require students to put in more effort. Students who learn {#blank#}6{#/blank#} (明智地) and learn well tend to perform better academically and are more confident about themselves.

Developing new relationships with classmates and teachers is also a new challenge for students. However, these relationships can be a {#blank#}7{#/blank#} (宝贵的) source of support when students get into difficulties. Joining clubs and attending school events are good chances for students to {#blank#}8{#/blank#} (与......有联系) with others.

All in all, high school life is full of challenges and makes students feel stressed and embarrassed at times, but it can also be a time of great joy and {#blank#}9{#/blank#} (发现). So students should take time to appreciate the people and experiences that make high school special and taste the memories during their {#blank#}10{#/blank#}(一生).