Archimedes. Why in the first place was the ancient Greek scientist? First of all, because he is one of the greatest mathematicians of all times, close he came to the calculation of the number of "PI". Today all students and students of the daily study and enjoy the discoveries of the Greek. Also Archimedes was famous for the invention of many useful machines. Among these are the siege guns, and mirrors, поджигающие sails on the Roman ships by focusing sunlight. Archimedes made the first theorist of mechanics. For example, he presented the complete theory of the lever, applying it in practice. Also, scientists have developed a Archimedes screw (screw), with the help of which вычерпывается water and the present day. The primacy of the inventor of merit - all of it was opened more than two thousand years ago, when there were no computers, no technology available today, the inventors. Archimedes, perhaps, he studied in the libraries of Alexandria, but most of his knowledge was acquired independently.
4. Поставьте наречие частоты в нужное место. Переведите. .
1. always - Luke is always borrowing my electric shaver without asking.
2. sometimes - We sometimes send e-mails to each other.
3. rarely - Peter rarely complains about his hard job.
4. never - You must never run in the dining-room.
5. hardly ever - My kids hardly ever read books.
6. very seldom - My parents very seldom eat fish.
7. once a month - I pay my rent once a month.
8. usually - She is usually late for the lectures.
9. occasionally - We occasionally visit our grandma in the countryside.
10. quite often - I quite often make pizza for my family.
1. Люк всегда берёт мою электробритву без спроса.
2. Иногда мы посылаем друг другу электронные письма.
3. Питер редко жалуется на свою тяжелую работу.
4. Вы никогда не должны бегать в столовой.
5. Мои дети почти никогда не читают книг.
6. Мои родители очень редко едят рыбу.
7. Я плачу за квартиру раз в месяц.
8. Обычно она опаздывает на лекции.
9. Мы иногда навещаем нашу бабушку в деревне.
10. Я довольно часто готовлю пиццу для своей семьи.