People may find it unbelievable that two hundred years ago people did not link illness     1     environmental problems. In London, drinking polluted water led     2     many deaths from cholera. It always started in the poor neighborhood, and then it spread to the richer areas as the servants infected     3     the illness passed it on. Many doctors suspected    4    polluted water was     5     (blame). John Snow’s     6     (finding) proved that the dirtier the water, the     7     (severe) the illness. Therefore, they concluded that water must be     8     (pure). They instructed the     9     (handle) be removed from pumps if the water carried the virus. Thanks     10    John Snow, cholera was defeated eventually.

7 . BEAUTIFUL IRELAND AND ITS TRADITIONS

Ireland’s beautiful countryside has always had a great influence on its people and traditions. The country has a long history of producing great writers and poets. Its beautiful countryside excites and inspires all, offering something for each of the senses. The peaceful landscape of the “Emerald Isle” and its many green counties is a true feast for the eyes, with its rolling green hills dotted with sheep and cattle. And down by the sea, the roar of the ocean waves and cries of the seabirds make up the music of the coast. On a quiet morning in the mountains, feel the sun on your skin, and breathe in the sweet scent of fresh flowers while birds greet the new day with their morning song. With all this beauty, it is not surprising that Ireland has developed strong traditions that include music, dancing, and dining. To have a chance of experiencing this, stop by a village pub and relax with a glass of wine or a local beer. Better yet, enjoy a delicious traditional Irish Beef Stew. If you’re lucky, you might be able to enjoy some traditional music and dancing, too. And if you introduce yourself to a friendly face, you are more than likely to experience local culture and customs first-hand.

Traditional Chinese medicine (TCM) is a health care system in which patients     1     (treat) with natural plant, animal, and mineral remedies (药物). It is believed, for a person to be healthy,     2     yin and yang forces should be in balance. Imbalance causes illness or injury. TCM is about     3     (restore) the balance between yin and yang forces in patients. It has been a major part of traditional Chinese culture and continues to play     4     vital role in medical treatment in China today.

According to the World Health Organization, nearly 80 percent of the world’s population depends for its primary health care needs     5     , medicines from plants and animals. This is especially true in countries where traditional medicines are     6     (wide) used.

Increasingly, however, modern medicines also contain substances from animals and plants. Given growing populations, increasing wealth, and the     7     (spread) popularity of natural remedies around the world the demand for these medicines and remedies     8     (rise) now .The rising demand,     9     (combine) with reduced habitat, has put a number of plant and animal species used for medicinal purposes at risk for many years.

For instance, TCM uses about 1,000 plant and 36 animal species, including the tiger, rhinoceros (犀牛), and sea horse,     10     are all in danger.