E　　
As a result of pollution , Lake Erie , on the borders of the USA and Canada, is now without any living things.　　
Pollution in water is not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organism(生物体 ) to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die too. In this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening.　　
Where do the substances which pollute the water come form? There are two main sources sewage (污水) and industrial waste. As more detergent (洗涤剂 ) is used in the home, so more of it is finally put into our rivers. lakes and seas. Detergents harm water birds dissolving the natural substances which keep their feathers waterproof. Sewage itself, if not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many highly poisonous things in it, such as copper and lead(铅 ).　　
So , if we want or stop this pollution , the answer is simple: sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.　　
72. Pollution in water is noticed _____. 　　
A. when the first organisms are affected    B. when a good many fish and birds die 　　
C. when poisonous things are poured into water      　　
D. as soon as the balance of nature is destroyed 　　
73. The living things die because there is no ____ in the lake or river.  　　
A. water          B. fish               C. poison           D. oxygen 　　
74. Which of the following is harmful according to the passage? 　　
A. Organisms                             B. Plants and plankton in the water     　　
C. Waste water from cleaning   D. Industrial waste made clear before flowing into the water 　　
75.The way to stop water pollution is _______.　　
A. realize the serious situation clearly 　　
B. put oxygen into the river 　　
C. make the waste material harmless before flowing into the water 　　
D. make special room in the sea for our rubbish　　

E

　　The oldest forms of medicine are enjoying a comeback. Modern holistic medicine is an approach that treats the whole patient，not just the disease. It is a way to maintain good health rather than cure illness. The most important influences on today’s holistic medicine are ancient Chinese medicine and Indian Ayurvedic medicine，both of which promoted whole body health.

　　Holistic medicine usually combines diet，physical exercise and meditation，together with other alternative techniques such as massage and acupuncture. Herbal treatment，a practice of treating illness by using plants，is influenced by the writings of Culpeper as well as Chinese and Ayurvedic medicine. Homeopathy（顺势疗法）is one of the forms of holistic medicine which is widely practiced in Europe and the USA. Homeopathy began in Germany in the early 1800s, when Samuel Hahnemann described how very tiny doses of a drug had an effect on his patients. According to Hahnemann, the more the drug was diluted（稀释），the stronger its effects. The substance selected would produce similar effects to the disease itself if given in large doses. In the UK homeopathy is regarded as a non-traditional but just about acceptable treatment.

　　Meditation and contemplation have an important role in holistic medicine. They were brought to Europe by Indian teachers who combined Indian Ayurvedic medicine with Western beliefs. Transcendental meditation（超脱静坐）is one of the best known of these techniques. People repeat words inside their head to reach a state of deep relaxation.

　　The holistic movement has made many doctors look at the whole patient，not just the disease. Life-style，emotional problems and diet are just some of the factors that can affect a person’s health. Holistic medicine emphasizes good diet, exercise and fresh air, all of which contribute to health. Some clinics now offer holistic medicine along with traditional treatments，so that their patients can choose a combination of treatments that suits them. One problem with holistic medicine is that it is difficult for people to be sure that a doctor is reliable. To solve this，many countries want alternative doctors to form professional bodies.

67．Modern holistic medicine centers upon __________.

A．curing a disease

B．herbal treatment

C．continuous development

D．keeping patients healthy

68．Which of the following does NOT belong to holistic medicine？

A．Massage. 　　　　　　　　　　　　　　　B．Meditation.

C．A balanced diet.　　　　　　　　　　　 D．A knee operation.

69．The principle of homeopathy is that__________.

A．the large doses of medicine that will not be harmful will take better effect

B．the disease will be cured sooner by taking larger doses of medicine

C．a small thinner dose of medicine will be more effective

D．the doses of medicine depend on how serious the illness is

70．Which of the following titles best sums up the passage？

A．Holistic Medicine 　　　　　　　　　B．Traditional Medicine Returns

C．History of Medicine 　　　　　　　　D．Combination of Treatments Works

E　　

As a result of pollution , Lake Erie , on the borders of the USA and Canada, is now without any living things.　　

   Pollution in water is not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organism(生物体 ) to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die too. In this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening.　　

   Where do the substances which pollute the water come form? There are two main sources sewage (污水) and industrial waste. As more detergent (洗涤剂 ) is used in the home, so more of it is finally put into our rivers. lakes and seas. Detergents harm water birds dissolving the natural substances which keep their feathers waterproof. Sewage itself, if not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many highly poisonous things in it, such as copper and lead(铅 ).　　

   So , if we want or stop this pollution , the answer is simple: sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.　　

72. Pollution in water is noticed _____. 　　

A. when the first organisms are affected     B. when a good many fish and birds die  　　

C. when poisonous things are poured into water        　　

D. as soon as the balance of nature is destroyed  　　

73. The living things die because there is no ____ in the lake or river.   　　

  A. water           B. fish                C. poison            D. oxygen  　　

74. Which of the following is harmful according to the passage? 　　

 A. Organisms                              B. Plants and plankton in the water      　　

C. Waste water from cleaning   D. Industrial waste made clear before flowing into the water 　　

75.The way to stop water pollution is _______.　　

A. realize the serious situation clearly  　　

B. put oxygen into the river  　　

C. make the waste material harmless before flowing into the water 　　

D. make special room in the sea for our rubbish