Соедините придаточные и главные предложения. запишите их на
правой стороне тетради и переведите, обращая внимание на перевод
инфинитива
1. we know all the rocks…
2. the geological investigations to be carried out…
3. the science of geology can explain…
4. many questions remain completely unsolved…
5. to have any deposition…
a. … there must exist a source of sediments.
b. … the mode of occurrence of ore deposits.
c. … and there are many questions to be posed.
d. … include field prospecting and exploration.
e. … to be penetrated by cracks and fissures

People in contemporary world can hardly imagine their lives without machines. Every day either a new gadget is invented or an old one is improved. Different people appreciate new inventions differently. Some suppose that sophisticated gadgets are really useful and necessary, while others find them absolutely awful as they influence people badly. As for me, I am pretty sure that gadgets make people`s lives easier.

Firstly, they do all kinds of dirty and hard work, as cleaning. Secondly, devices can save a lot of time as well as storage space. For instance, a computer disk can contain the same amount of information as several thick books.So, machines help people in different spheres.

However, opponents of this point of view are definitely sure that gadgets affect people negatively. People are reluctant to work due to the influence of machines. People become lazy and disorganized. They just expect their latest gadgets to do everything instead of them. Moreover, according to scientists, a great number of widespread devices produce radiation that can cause serious health problems. Furthermore, more and more people are becoming addicted to their modern gadgets, for instance computers, TVs or mobile phones. So, they neglect their home obligations, work or school and spend all their spare time in front of a laptop screen or a TV-set.

In conclusion, I firmly believe that in spite of all drawbacks, gadgets have, their benefits are much more considerable, as they save people`s time and let them enjoy life.

I. Harry (woke) early on Saturday morning and (lay) for a while thinking about the coming match. He (has been) nervous since Monday, mainly at the thought of what Wood (would say) if the team (lost). He had never (wanted) to beat Slytherin so badly. He (got) up, (dressed), and (went) down to breakfast early, where he (found) the rest of the team. They (were sitting) at the long, empty table. Nobody (was talking).
II. A week later, Harry, Snape and Ron (were walking) across the Entrance Hall when they (saw) a small knot of people who (had gathered) around the notice-board and (were reading) a piece of parchment that had just (been pinned up). "They (are starting) a Duelling Club!", (said) Ron. "First meeting tonight! I do not (mind) duelling lessons, they (might) come in handy one of these days. Shall we (go)?" Harry and Snape (were) all for it, so at eight o'clock that evening they (hurried) back to the Great Hall. "I wonder who (will teach) us? I hope it (will be) Frederick," said Snape.