step by step3000第三册unit5答案及原文

英语专业学生经典的听力材料

Part I

A1

1. A successful brain tissue transplant carried out by a South African surgeon.

2.The discovery of a new way to increase the effectiveness of chemotherapy.

3.The possibility of a new way to treat glaucoma.

4. A new research on writing which shows that writing can result in clinically

meaningful outcomes.

A new research on writing which shows that writing can help people with chronic

illness improve their health.

5.The theory and function of acupuncture.

A2

1. A week ago / Parkinson’s disease.

2. A natural defense mechanism

3.The death of brain cells

4.Meeting patients’ psychological needs produces physical health benefits.

5.Side effects / cut back on medication.

1.The world’s leading transplant surgeon, Dr Christopher Bernard, has carried

out one of the most difficult brain tissue transplants yet attempted. The South African surgeon has succeeded in transplanting tissues into the human brain in what is thought to be the first operation of its kind. The surgery was performed

a week ago on a patient sufferi ng from Parkinson’s disease. A portion of the

patient’s adrenal gland was implanted into a part of the patient’s brain, an operation which has previously been performed only on rats and monkeys.

2.Approximately a third of all people develop cancer at one point in their lives.

Chemotherapy has its limitations, but it is one of the major treatment options.

Some American scientists have discovered they can increase the effectiveness of chemotherapy by inhibiting a natural defense mechanism employed by cancer cells.

3.Glaucoma is responsible for blindness in an estimated 67 million people

around the world. Until now, treatments have focused exclusively on the eyes.

But that may change in the next few year, following the discovery that glaucoma involves the death of brain cells.

4.New research shows that the simple act of writing down thoughts about a

stressful event can help people with chronic illnesses improve their health.

This is the first study to show that writing can result in clinically meaningful outcomes for chronically-ill patients. The study adds to the growing amount of scientific literature suggesting that meeting patient’s psychological needs produces physical health benefits.

5.Traditional Chinese medicine says that good health is associated with the

balance of Qi. Qi can be hindered or helped by yang and yin. According to traditional theory, the goal of acupuncture is to promote the flow of qi by