【推荐1】If you make a list of the world’s top ten most challenging job, chances are that being a teacher will not make the cut. But think about the daunting task millions of educators face each day as they try to mold a group of often surly, unruly kids into intelligent, well-rounded individuals. That surely has to be the toughest job in the world, especially given that there is no promotion or bonus awaiting them even if they are wildly successful!

What if these all-important individuals that we often take for granted disappear from our lives? That was what Project Ed and Participant Media's Teach campaign asked filmmakers of all ages to envision for their recently held contest. Entitled, "A World Without Teachers," its intent was to inspire more young people to become teachers. However, the 62 amazing video submissions also serve as a reminder of how grim things would be if we didn't have these selfless individuals guiding us through life. What was interesting is that even the youngest contestants did not appear to rejoice at the idea of not having anybody telling them what to do.

High-school student Savannah Wakefield pondered if art as we know it today would have been different without teachers. Would Monet have discovered his talent for impressionism? Los Angeles-based Miles Horst, who won the 1,000 USD prize for the best adult submission imagines a world where teachers are replaced by a 'brain box' in his fun animated entry.

Youth category winner Marina Barham's video depicts a fact we all know but often forget. Teachers don't just teach, they inspire - something that no electronic device, no matter how smart, can do! So the next time you think your teacher is being   "mean" for trying to channel you in the right direction, imagine a life without him/her. We have a feeling it will not appear as rosy!

【推荐2】New technology rules the whole world now. But I still remember when I was a child, I did not have a cell phone or a computer because it was not necessary at all in those days. The internet was not popular, and the touch screen technology was unknown.

At this time here in the US smartphone are really a need, especially for young and business people. There are many applications really useful like maps, dictionaries, e-mails and games.

For me, I use my smartphone to check the weather and to look for something on the internet and of course to keep communicating through calls and texts. Besides, I like music applications, GPS and Facebook.

Many tests have discovered that cell phones cause damages to us because they send out radioactive(具有放射性的) waves to our bodies and this could cause cancer.

Psychologists say that these devices can affect behavior and I believe everyone knows it is harmful to the eyes if we are sitting for a long time in front of computer. However, it seems to be difficult for us to give up, even if we know how bad it is for our health. The use of technology becomes more and more important in our lives.

I think the use of technology has brought us unimaginable things. If we use technology correctly, I am sure it would be possible to decrease the damage to our bodies.

Keep in mind that it is important not to focus only on technology, but to spend time with our families and people close to us.