Charles Darwin, a young man just out of university in 1831,       1    (offer) a job on a ship on a voyage of discovery around the world. Life on board was tough. Darwin was       2    (terrible) seasick and was only happy when he was ashore collecting plant samples. and observing animals. It was to be the most important journey in his life. It       3    (last) for five years.

Darwin studied nature in South America and in a group of small islands in the South Pacific. On each island there were birds. They were very similar,       4    the shape of their beaks, and even their eating habits varied. Darwin wondered why they were different. Then he realized that over millions of years, all plants and animals have gradually changed into the forms we see today.       5    we call "the survival of the fittest" he named "natural selection". He also called this slow process of change “evolution”.

By 1846, he had published an article describing his voyage. Darwin spent the years       6    followed developing his theories and making them perfect. In 1859, he published them in The Origin of Species. It caused a huge       7    (argue) because it seemed to deny what the Bible said. His The Descent of Man, 1871, pointed       8    that mankind had come from the same ancestor. Other scientists agreed with his ideas and took up     9    (he) cause. The Church prohibited the       10    (teach) of the Theory of Evolution in some countries. However, today most people believe that Darwin was right.

On Monday, two days after Yuan Longping,     1    (know) as “father of hybrid rice”, passed away at the age of 91, the farewell ceremony for him     2    (hold) in Changsha City, capital of Central China’s Hunan province.

People from all walks of life     3     (include) many Hong Kong residents and stars mourned his passing away. One important reason     4     people are mourning Yuan, both in the Chinese mainland and in Hong Kong Special Administrative Region, is that he helped this nation get rid of     5    (hungry). That’s a matter of life and death to Chinese people,     6    (especial) to Hong Kong people, because it replies on import for over 95 percent of its food. In the 1960s, the mainland opened three freight trains that carried various agricultural     7    (product) to Hong Kong. Without the mainland’s food supply, Hong Kong     8     not have focused on the economic development. It is Yuan’s hybrid rice that makes     9     possible for the mainland to grow abundant rice. Actually, the Hong Kong people, like their compatriots(同胞) on the mainland, have never forgotten Yuan has done to China and to the world.

Now Yuan has passed away,     10     his contributions will be remembered forever.