There is strong and comprehensive evidence that the rise in temperature     1    (lead) to an increase in extreme weather and natural disasters worldwide, causing serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will     2    (probable) continue and there will be a higher price     3    (pay). In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves     4    (cause) deaths and economic losses.

Continued greenhouse gas emissions will result     5    further warming and long-lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider making     6    (policy) and taking appropriate actions and measures to reduce greenhouse gas emissions. We as individuals can also reduce our “carbon footprint” by restricting     7    amount of carbon dioxide our lifestyles produce. It is our responsibility     8    (seize) every opportunity to educate everyone about global warming, along with its causes and     9    (impact), because this is the most serious issue affecting all of us on this planet. So     10    will you do to help?

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.

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.

Herds of elephants used to live on the plains of Africa and in the forests of Asia. But today, hunters are a serious threat     1     them. The number of these large animals     2     (reduce) at an alarming rate due to     3     (legal) hunting. To save them, some     4     (reserve) have been established where they can live in peace and safety. However, the attacks on them will continue as long as interest in buying elephant products exists. To make humans and animals live     5     harmony, measures must be taken     6     (protect) these beautiful creatures from becoming     7     (endanger).

Herds of elephants used to live on the plains of Africa and in the forests of Asia. But today, hunters are a serious danger     1     them.     2     large amount of cruel hunting has contributed     3     the dramatic     4     (reduce) of these large animals. To save them, some     5     (reserve) have been established where they can live in peace and safety. Moreover, many people are devoted to     6     (protect) them. However, the     7     (cruel) on them will continue as long as interest in buying elephant products     8     (permit). To make humans and animals live in harmony, it is urged that measures     9     (take) to protect these beautiful creatures from     10     (extinct).