Слова в скобках и есть лишние
MY PET'S A ROBOT
For people who want a real pet but aren't able to look after one scientists in Japan have developed (as) a robotic cat called NeCoRo. It can (to) sit, stretch and "sleep", although it can't walk. When you stroke it, it will purr, wiggle its (the) ears and move its head, and sound sensors in its ears mean NeCoRo can recognise its name when you (to) call it. Doctors in the US were (so) impressed by the robotic cat. They have been using it to help (the) long-stay patients in hospital. Studies have shown that (by) stroking a cat can make people feel relaxed and happy, (bat) with the robotic cat they don't have to (be) worry about feeding it or having to find a litter tray.
But, unfortunately, people try to subordinate to themselves the nature, to become her owner, but so it is impossible. The nature needs to be protected, it is our house. Necessary for life the nature gives all to us. If was considered earlier, the natural riches which aren't settled that they in large quantities, then now it becomes clear what is in limited quantity much. The person can't use gifts of the nature constantly as they can disappear soon. A task of the person to preserve the nature and to increase her riches. It is necessary to approach the matter as we are obliged to leave behind to the descendants the rich, beautiful, and pure planet responsibly.