Ex. 8. Fill in the blanks with prepositions where ncccssary.
by, of, to, in, after, without, between
1. D. I. Mendeleyev made ... a thorough study ... the relation ... the
atomic weights... the elements and their properties. 2. Mendeleyev’s periodic
table consisted ... seventeen columns. 3 a general way Mendeleyev’s
table resembled ... the present periodic table ... the noble gases.
4. Mendeleyev placcd... a number... elements... different positions. 5. The
periodic law was accepted ... its proposal... Mendeleyev. 6. M ost... the
elements occur ... the periodic table ... the order ... increasing atomic
weights. 7. Mendeleyev predicted the existence ... six elements
corresponding... vacant places... his table. 8. The properties... the newly
discovered elements were very close ... the properties predicted ... him.
Объяснение:
Vesalius was a Flemish-born anatomist whose dissections of the human body helped to correct misconceptions dating from ancient times.
Andreas Vesalius was born on 31 December 1514 in Brussels, Belgium, then part of the Holy Roman Empire. He came from a family of physicians and both his father and grandfather had served the holy Roman emperor. Vesalius studied medicine in Paris but was forced to leave before completing his degree when the Holy Roman Empire declared war on France. He then studied at the University of Louvain, and then moved to Padua to study for his doctorate. Upon completion in 1537 he was immediately offered the chair of surgery and anatomy.
Surgery and anatomy were then considered of little importance in comparison to the other branches of medicine. However, Vesalius believed that surgery had to be grounded in anatomy. Unusually, he always performed dissections himself and produced anatomical charts of the blood and nervous systems as a reference aid for his students, which were widely copied.
In the same year Vesalius wrote a pamphlet on blood letting, a popular treatment for a variety of illnesses. There was debate about where in the body the blood should be taken from. Vesalius' pamphlet was supported by his knowledge of the blood system and he showed clearly how anatomical dissection could be used to test speculation, and underlined the importance of understanding the structure of the body in medicine.
In 1539, his supply of dissection material increased when a Paduan judge became interested in Vesalius' work, and made bodies of executed criminals available to him. Vesalius was now able make repeated and comparative dissections of humans. This was in marked contrast to Galen, the standard authority on anatomy who, for religious reasons, had been restricted to animals, mainly apes. Vesalius realised that Galen's and his own observations differed, and that humans do not share the same anatomy as apes.
2 You are always complaining that waiters are rude!
3 I walk.to school every day. I don't take the bus.
4 You are always borrowing money!
5 That’s worrying because the number of people without job is increasing.
6 Robert is a vegetarian. He doesn't eat meat.
7 Do you cook your own dinner every day?
8 Holidays abroad are becoming increasingly popular.
9 Are you in a hurry? — No, I am walking quickly because I’m cold.
10 Where’s your father? — He is in the bathroom. He is shaving .
11. The neighbours forever slam doors and shout during the night.
12 My sister takes part in the competitions almost every weekend.