Monkeys are surprisingly diverse in appearance and other characteristics, but they all retain the basic attributes of this group. Belonging to the primates is determined according to the following criteria: the presence of prehensile limbs and developed clavicles; brush well bend and unbend; first the fingers are opposed by the rest; on the finger - nails (but in some species and claws); of the orbit surrounded by bone rings, separated from the temporal pits, eyes directed forward; teeth of four types (for newborns typical of the milk teeth, which are then replaced by permanent); - developed cecum; a placenta, etc. In the body size of the primates range from the tarsier, pygmy marmoset and mouse microcebus (8-15 cm in length) up to six-foot gorilla. Average weight of mouse microcebus - 60 g, while the gorilla can reach a weight of 300 kg. In accordance with the size of the body changes and the lifespan of primates. Some monkey species maximum age not more than 10 (marmosets), other - 57 years (the orangutan). With the lifespan associated the duration of pregnancy. The amplitude of this magnitude is significant in primates: from 40 days at tupai to 270-290 days in higher apes. Обезьяны удивительно разнообразны по внешнему виду и другим характеристикам, но при этом все они сохраняют основные признаки этого отряда. Принадлежность к приматам определяется по следующим признакам: наличие хватательных конечностей и развитых ключиц; кисти хорошо сгибаются и разгибаются; первые пальцы рук противопоставлены остальным; на пальцах - ногти (но у некоторых видов и когти); глазницы окружены костными кольцами, отделены от височных ям, глаза направлены вперед; зубы четырех типов (для новорожденных характерны молочные зубы, которые затем сменяются постоянными); развита слепая кишка; имеется плацента и др. По размерам тела приматы варьируются от долгопята, карликовой игрунки и мышиного микроцебуса (8-15 см в длину) до двухметровой гориллы. Средний вес мышиного микроцебуса - 60 г, тогда как горилла может достигать веса в 300 кг. В соответствие с размерами тела изменяется и продолжительность жизни приматов. У одних видов обезьян максимальный возраст не превышает 10 (различные виды игрунок), у других - 57 лет (орангутанг). С продолжительностью жизни связана длительность периода беременности. Амплитуда этой величины у приматов значительна: от 40 дней у тупайи до 270-290 дней у высших обезьян
“I think this is it, Mrs Grant,” – said doctor Cold (Kold) and handed her the prescription. The prescription (the list) was very long and Mrs. Grant was close to falling down in a faint when she finished reading it to the end. She had a headache, the had a cold, she was beginning to feel the symptoms of influenza. To cap it all, one of her children had mumps. “I also prescribed you the tablets (a medication) for high blood pressure,” – said doctor Cold. “How many tablets should I be taking?” “One tablet after each meal, that is three tablets a day.” Mrs. Grant thanked the doctor and heavily (with difficulty) walked to the pharmacy. She handed her long prescription to the pharmacist – to Mr. White. Mr. White gaily greeted her. “Now this is health!” (“What a wonderful health!”) he said, as he looked at the list.
1. Switch on the light. It (is getting) dark. 2. Put on a warm coat. It (is snowing) outside. 3. Look out of the window. Some students (are hurrying) to their first lecture. 4. It’s a fine day today. The sun (is shining), the wind is not (blowing). 5. We (are having) dinner right now. I’ll call you back later. 6. I (am wearing) my best suit and shoes today. I (am going) to an interview. 7. He (is looking for) this file but he can’t find it. 8. — What are you (looking) at? — I (am looking) at my old photographs. 9. It’s 10 o’clock but the child is still (sleeping). 10. I (am learning) Arabic, and I find it very interesting. 11. They are at a karaoke club now. They (are singing) there. 12. Look how many people (are walking) in the park. They (are enjoying) the fresh air and exercise. 13. What group are you (teaching) this year? 14. — How are you (feeling) today? — Thank you, doctor. I (am feeling) much better. 15. — Are you still (looking) for a job? — Yes, I am. 16. — What are you (thinking) about? — I (am thinking) about you. 17. — Why are you (sitting) here and (doing) nothing? — I (am relaxing). 18.— Are you (kidding)? — No, I’m absolutely serious. 19. — How are you (getting on)? — Thank you, I (am doing) fine.