Упражнвние 49

А. Проанализируйте структуру сложно-подчинённых предложений с придаточными обстоятельства вре­мени, которые могут находиться как до, так и пос­ле главного предложения. Опираясь на схемы, при­ведённые ниже, найдите ядро в главном и прида­точном предложениях и укажите союз, которым придаточное предложение присоединяется к глав­ному.

Сложно-подчинённое предложение

или

Сложно-подчинённое предложение

Б. Переведите предложения.

1. The nasal passages filter the air as it passes through them.

2. The large intestine absorbs water from the food after it has passed through the
small intestine.

3. When the walls of the ventricles contract, the blood is sent out under pressure
into the aorta and pulmonary artery.

4. Once the food is chewed and moistened and reduced to a semi-liquid state, the
tongue rolls it into a ball and pushes it backward into the pharynx.

5. The complex of digestive processes gradually simplifies the foods eaten until
they are in a form suitable for absorption.

6. Except in emergency situations every effort is made to have the patient in a state
of optimal health before surgery is performed.

7. As the baby takes its first breath the lungs fill and expand pressing against the rib
cage.

8. After food has been chewed and swallowed, it must be moved through the gastro­
intestinal tract for further preparation and final disposition.

9. Even when an individual muscle is voluntarily relaxed, some of its fibers are in
contraction.

10. Once vitamin B₁₂ has been absorbed from the gastro-intestinal tract it is stored in
large quantities in the liver.

11. Pancreatic cancer is a silent disease that develops without apparent symptoms
until it is far advanced.

12. Immediately after a blood vessel is traumatized, its wall contacts in the region of
the injury.

13. Patients with typhoid fever are placed under enteric precautions until the urine
and feces are free of bacilli.

14. Blood transfusions became practicable and safe in 1900, after Landsteiner
discovered blood groups.

15. Today patients may be fitted with a prosthesis immediately after the limb is
removed and before they leave the operating room.

9.6 Придаточные предложения причины