Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Учебное пособие по англ языку.doc
Скачиваний:
2128
Добавлен:
19.05.2015
Размер:
5.15 Mб
Скачать

4.Look through the text and say what every passage is about. Choose the right variant.

The first passage

The second passage

The third passage

The fourth passage

The fifth passage

The sixth passage

The seventh passage

The eighth passage

is about

  • possible causes of cancer

  • surgery

  • normal body cells growth

  • chemotherapy

  • the process called metastasis

  • types of cancer

  • radiotherapy

  • cancer cell growth

5.Translate the text into Russian

6.Answer the questions.

  1. What is cancer?

  2. When does cancer start?

  3. What is the difference between cancer cell growth and normal cell growth?

  4. How does the process of metastasis go on?

  5. How many types of cancer are there?

  6. What does cancer treatment include?

  7. What factors can lead to cancer?

7.Fill in the table

Types of cancer treatment

Means of cancer treatment

Aim of cancer treatment

1.____________________

a………

2.____________________

3.____________________

a……….

b………

c………

TOPIC 39. HEPATITIS

The knowledge and understanding the nature of hepatitis is the way to defend yourself. This lesson will help you.

1.Review the given words.

Inflammation / liver / cells / tissue / occur / jaundice / loss of appetite / malaise / acute / cause / cases / transmit / contaminated food / fatigue / fever / abdominal pain / nausea / itching / dark urine / prevent / avoid / needles / syringes / spread / cure.

2.Study the words

  1. ingestion - приём пищи

  2. exhibit – обнаружить, проявлять

  3. sanitation – улучшение санитарных условий

  4. exposure – подвергание внешнему воздействию

  5. clear the infection – устранять инфекцию

  6. replicate – воспроизводиться путём клеточного деления

  7. scarring – появление рубцов

3.Read and translate the text.

Hepatitis

Hepatitis is an inflammation of the liver characterized by the presence of inflammatory cells in the tissue of the organ. The condition can be healing on its own or can progress to fibrosis (scarring) and cirrhosis. Hepatitis may occur with limited or no symptoms, but often leads to jaundice, loss of appetite and malaise. Hepatitis is acute when it lasts less than six months and chronic when it persists longer. A group of viruses known as the hepatitis viruses cause most cases of hepatitis worldwide, but it can also be due to toxins (alcohol, certain medications), other infections.

Hepatitis A virus (HAV) is transmitted person-to-person by ingestion of contaminated food or water or through direct contact with an infectious person. The incubation period is between two and six weeks and the average incubation period is 28 days.

Early symptoms of hepatitis A infection can be mistaken for influenza, but some people exhibit no symptoms at all. Symptoms of hepatitis A infection include fatigue, fever, abdominal pain, nausea, diarrhea, appetite loss, jaundice, weight loss, itching, dark urine. Hepatitis A can be prevented by vaccination, good hygiene and sanitation.

There is no specific treatment for hepatitis A. Patients should rest, avoid fatty foods and alcohol, eat a well-balanced diet.

Hepatitis B virus (HBV) results from exposure to infectious blood or body fluids. Possible forms of transmission include sexual contact, blood transfusions, re-use of contaminated needles and syringes, and vertical transmission from mother to child during childbirth.

The acute hepatitis B infection causes liver inflammation, vomiting, jaundice and rarely, death. Chronic hepatitis B may cause liver cirrhosis and liver cancer. The infection is preventable by vaccination.

Acute hepatitis B infection does not usually require treatment because most adults clear the infection spontaneously. Treatment of chronic infection may be necessary to reduce the risk of cirrhosis and liver cancer. Although none of the available drugs can clear the infection, they can stop the virus from replicating, thus minimizing liver damage.

The hepatitis C virus (HCV) is spread by blood-to-blood contact. The infection is often asymptomatic, it is mostly discovered accidentally. Persistent infection can be treated with medication. 51% are cured overall. No vaccine against hepatitis C is currently available. Chronic infection can progress to scarring of the liver (fibrosis), and advanced scarring (cirrhosis) which is generally apparent after many years.