Nanjing, situated in the lower reaches of the Yangtze River, was the capital of China for six Dynasties. An Australian Nanjinger Townley loves the rivers in the city. He     1     (ride) a bike along the bank of a river to the Nanjing Fishmouth Wetland Park in Jianye District every Saturday and Sunday mornings, about a 15-km round trip.     2     (walk) around the city or visiting museums is also an enjoyable part of his life.

According to Townley, Nanjing is in an ideal     3     (locate) in one corner of the Yangtze River Delta region, close to Shanghai.

Now, Townley works with and     4     (support) by the Jiangsu Industrial Technology Research Institute. He serves     5     a visiting professor at the School of Environmental Science and Engineering at Nanjing Tech University. After being a consultant and in the industry for     6     (year), he loves being connected to a university again     7     (share) his knowledge and experience with younger people and to initiate research based on the problems he has encountered in the real world so far. “I know my education and life are different from the     8     (type) Chinese students. Despite the differences,     9     I want to do with my Chinese students is encourage them to think, to be curious     10     to always search for new things.”

Every day, Duan Lianru spends several hours sitting in her office in Hunchun, Jilin province to make a     1     (compare) of hundreds of photos of Siberian tigers on the computer.

“It seems a little boring, but     2     (basic) I enjoy the work, which makes a connection between me and the big cats,” said the 36-year-old monitor from there search monitoring center of the Northeast China Tiger and Leopard National Park. The park     3     (stretch) across the provinces of Jilin and Heilongjiang.

Duan is responsible for identifying the tigers according to patterns on     4     (they) fur and giving them something like     5     identity card.

The park,     6     size exceeds (超过) 1.4 million hectares, is the most important habitat for wild Siberian tigers and Amur leopards in China.

The Siberian tigers’ “ID cards” come     7     a lot of important basic data that aids scientific conservation.     8     (base) on such information, Duan draws the family trees of the tigers.

Recent years     9     (see) a remarkable increase in the variety and number of wild animals and more tiger families have been found, including some back two or three generations.

“I feel quite honored to be involved in such significant work.” Duan said. “     10     (create) a more beautiful world, humans and wild animals, I hope, can live in harmony.”

The difference between a part-time bookseller and a professional one isn't a clear line in the sand. At one time, a professional bookseller might have been defined as someone     1    primary occupation was selling books. Changes in both technology and the market    2    （influence) that a little, with the Internet allowing anyone to list books for sale.

A professional bookseller is an individual who has thoroughly studied how to identify books and     3    （accurate)describe their condition.That knowledge can be gained by years of experience working for another bookseller or as     4     buyer and collector.

A professional bookseller     5     (value) their customers even more than the     6    （sale) of individual books. The professional is in the business for the long term. Individual books in their list come and go,     7     the relationship with their customers gets closer.

A professional bookseller pairs their knowledge of books with salesmanship,     8    (help) communicate the value of a book to potential customers. The ideal description of a book combines an accurate list of important features along with a     9     (detail) description of the condition of the individual copy. There's plenty of room in an online book description for a professional bookseller to stress on the     10     (important) of a particular work.