II. Arrange the words into sentences:
1. not, ages, Angela, have, and, Flora, for, seen.
2. fought, men, ancient, survival, for.
3. its, help, called, Titanic, radio, the, for, on.
4. nothing, have, they, found.
5. me, has, much, expedition, impressed, the.

Let's discuss some important issue of our nowadays. Social networks, are these evil or kind modern tools in our life? How happy we were, when we found out about all that great services like Facebook, ebay, instagram and similar? As an advantages we could finally find our old, lost and current friends, view ther pictures showing their lifes, chat with them, put thousands likes and have a feeling that we are stil close, that we participate somehow. We don't need to spend the hours in the shops and supermarkets any more: just several clicks are left to order, purchase and receive desired items! Lovely. We don't need to work hard on our homework because there is any information on the web we can get. But from another point of view, let's think carefully about what we lost in our life when we started to use the social networks every day. Please think about when did you call your friend last time just to talk? When did you spend the whole day on the nature? We have an illusion of real communications now, because it is much easier to write a message than to meet. When did you read a good book last time? When did you do your homework without cheating it for 100%? People have started spending more than 50% of their free time with gadgets, moover they do it at the school or at work. That is becoming a huge threat for the whole world. We are not getting clever, we are choosing the easiest ways to live. Please think about. To sum up, social networks are interesting places to spend time in, but don't forget that you have your real life passing by while you are online all days long. All of us should keep a healthy balance between or real and internet life. I suggest to choose the second option more frequently.

1. the poincaré conjecture.

in 2002, the russian mathematician grigori perelman proved the poincaré conjecture. this is a very serious discovery in mathematics. it was one of the seven tasks of the millennium. for this work, he received the prestigious fields medal, an analogue of the nobel prize in mathematics.

2. quantum clock.

quantum clocks are the most accurate chronometer in the world, surpassing all previously existing ones. nobel laureates of 2012 serge arosh and david wineland made a discovery that allowed to overcome the quantum barrier.

3. the discovery of eris.

the eris is the second after the massive pluto massive dwarf planet of the solar system. it was the discovery of eris from pluto that ceased to be the ninth planet, and passed into the category of "dwarf".

4. created the first synthetic bacterial cell.

in 2010, scientists from the craig venter institute created the first fully synthetic chromosome with the genome. when it was embedded in a bacterial cell devoid of genetic material, it began to function and divide according to the laws prescribed by the new genome.

5. higgs boson.

this was experimental evidence of the existence of the higgs boson. the practical significance of the discovery of the higgs boson is that scientists are opening up prospects for the development of anti-gravity and the development of engines that do not require energy to operate.