1peter: you (have been telephoning) for ages. have you not nearly (finished)? jack: i (have not got) through yet. i (have been trying) to get our paris office but the line (has been ) engaged all morning. 2 ann (has failed) her driving test three times because she's so bad at reversing. but she (has been practising) reversing for the last week and i think she (has got) a bit better at it. 3 tom: i have often (wondered) why bill left the country so suddenly. peter: actually, i have just (found) out. 4 he (has been playing) the bagpipes since six o'clock this morning. he has only just (stopped). 5 why have you (not brought) me the letters for signature? have you (not typed) them yet? 6 tom (looking up absent-mindedly as mary comes in): have you been (sunbathing)? mary (crossly): don't be ridiculous! it (has been raining) all day! 7 a pair of robins (have been building) a nest in the porch since last week. i (have been watching them from my window since they began. 8 the police (have not found) the murderer yet, but the dead man's brother (has been) in the station all day. the police say that he (has been helping) them with their enquiries. 9 they (have pulled) down most of the houses in this street, but they (have not touched) the old shop at the corner yet. 10 tom is convinced that there is gold in these hills but we (have been searching) for six months and (have not seen) any sign of it. 11 i (have been waiting) for the prices of the houses to come down before buying a house, but i think i (have been waiting) too long and the prices are beginning to go up again. 12 peter (has been) a junior clerk for three years. lately he (has been looking) for a better post but so far he (has not found) anything.
Научиться произносить
БОЛЕЗНЬ СЕРДЦА
Заболевания сердца делятся на две широкие группы: врожденные и приобретенные. врожденный
пороки сердца вызваны структурными дефектами. Приобретенные пороки сердца в основном обусловлены
ревматизму.
Врожденные дефекты могут привести к цианозу, если дефект таков, что кровь не
пройти через легкие для оксигенации. У пациента синие губы и синий палец
и ногти. Концы пальцев рук и ног округлые и булавовидные.
Иногда есть отверстие между левой и правой стороной сердца, или
даже между аортой и легочной артерией.
Симптомы зависят от типа болезни сердца. Иногда дефект выявляется
на обычном осмотре; в других случаях возможны одышка, затруднение
при ходьбе или беге, отеки ног и отечность лица, а затем и всего
тело. Некоторые из этих аномалий могут быть хирургически исправлены
1)Heart disorders fall into two broad groups: congenital and acquire
2)Congenital defects may result in cyanosis if the defect is such that blood does not
pass through the lungs for oxygenation. The patient has blue lips and blue-finger
and toe-nails. The ends of the fingers and toes are rounded and club-like.
Sometimes there is an opening between the left and right side of the heart, or
even between the aorta and pulmonary artery.
Symptoms depend on the type of heart disease. Sometimes, the defect is picked
up on a routine examination; at other times there may be breathlessness, difficulty
in walking or running, swelling of feet and puffiness of face, and later of the whole
body.
3)Yes of course.Some these anomalies can be surgically corrected