Нужно написать не очень большое сочинение на англ. яз. про любой гаджет, например, телефон.

In today’s generation, our technology has been very advance. In the past, mobile phones are just used to communicate to anyone and anywhere. But in this present time, they are more than just a communication device. They have been a necessity in our everyday lives. Even children nowadays have their own cell phones. Many teenagers today describe their cell phones as their “life”. But as for me, I own a Blackberry Curve 3G phone and it can be very useful for communication, school, and entertainment.

The main use of my mobile phone is for communication. I can use it for sending text messages and for calling anyone from anywhere in the island without a landline connection. It also allows me to call for help during times of emergencies. For example, if I encountered an accident, I can immediately call my friends or family for help. And any cellular phones can make a call to 911 in case there is no service to where the person is, or in case he has no load. In the past, whenever a person needs to get a hold of someone, he can only call them using their landline phone. Or if he is not home, he needs to run to the nearest telephone booth to make a call. Because of technological advancements, I can also use my phone for sending e-mails and instant messages through Blackberry Messenger, Yahoo! Messenger, and MSN. Even social networks like Facebook and Twitter that can only be accessed through the computer can now be accessed on my phone.
I will never be bored when I have my cell phone. It is not just a great communication device; it can be a good source of entertainment as well. My phone’s entertainment feature is very useful whenever I am waiting for my ride, waiting for my next class or if I have a doctor’s appointment. There are thousands of free games available that can be downloaded easily. With the access on the internet, I can go on YouTube, Google, and Yahoo! anytime.

Может, опишешь самые мощные гаджеты Древности и наших дней? Например, катапульту (стенобитную машину) Др. Греции и водородную бомбу современности? Мощнее их ничего не было и нет.

Гаджет (gadget) переводится как "приспособление". Похоже, речь идёт об электронных гаджетах? Но и упомянутые тоже интересны — вот преп удивится! Удивится твоим знаниям, в том числе и английского!