Wandering sounds, irregular rhythms and a carrier of gentle emotions. This is the musical language of guqin, a plucked seven string instrument created in ancient China.

The earliest piece of guqin in China,     1    (unearth) in Hubei province in 2016, dates back to the Zhou Dynasty. The body of a guqin is made of lacquered wood and the strings of twisted silk.    2     its seemingly simple appearance, making a guqin is extremely demanding.     3     outstanding piece can take anywhere from two to several decades to craft. It is a crystallization of art and time.

The guqin was favored by the literati in ancient China. The most renowned guqin     4    (music) was Yu Boya in the Spring and Autumn and Warring States periods.     5     he played his guqin in the mountains, a woodcutter named Zhong Ziqi heard the music and understood exactly     6     Yu wanted to express.

This deep understanding formed a strong bond between them,     7       they became close friends. This is the famous tale behind the guqin masterpiece, Flowing Water, High Mountains. The piece     8    (pass) down through generations and is considered one of the most famous and important     9    (compose) in Chinese guqin music. This graceful dialogue,     10    (flow) from brushed fingertips and travelling for thousands of years, is continuing to this day.

In the summer of 1405, Zheng He set sail from Taicang on his first voyage. His ships     1     (load) with china, silk, tea and other treasures as gifts for foreign rulers. Zheng He's seven voyages had a far­reaching impact     2     China and its neighbours. Zheng He's efforts helped develop and strengthen     3     (harmony) relations with these countries and regions. Zheng He's accomplishments are now     4     (wide) acknowledged, and he is remembered as one of China's most influential explorers.

Columbus was born in a port city of Italy in 1451. As a teenager, he loved sailing, and he showed great interest in geography,     5     inspired him to begin his career as a seaman. Columbus insisted on     6     (search) for a direct sea route to the East Indies by sailing across the Atlantic Ocean. On 3 August 1492, he     7     (depart) from Spain with three ships carrying about 90 crewmen. Regardless of all the challenges, Columbus managed     8     (keep) everyone out of danger with his knowledge and     9     (brave) across the ocean. Finally, on 12 October, the crew spotted land in     10     distance. His voyages opened a new chapter of the Age of Exploration, a period which witnessed many important geographical findings.

“A heavy ion (离子) cancer treatment system developed by Chinese researchers will soon be put into     1     (operate) in northwest China’s Gansu Province,” researchers said.

The system will be used in a hospital in Lanzhou, capital of Gansu,     2     is mainly devoted to treating cancer patients with the technology of heavy-ion accelerators.

Cancer radiation treatments     3     (employ) heavy-ion accelerators can attack     4     target with high-energy electrons (电子) to kill cancer cells.

Compared to traditional therapy (治疗) such as radiation, heavy ion treatment     5     (consider) to have more balanced properties with     6     (little) radiation on healthy cells. The treatment period is shorter,     7     the therapy could more     8     (effect) control cancer cells, according to Wang Xiaohu, deputy director of the Gansu Provincial Cancer Hospital.

Researchers with the Institute of Modern Physics under the Chinese Academy of Sciences started basic research     9     the technology in 1993 and developed the accelerators in 2015.

A report published by the National Cancer Center in 2017 showed that China has nearly 25 percent of the world’s new cancer cases, with 10,000 cancer patients     10     (add) per day. Every year, there are two million cancer-induced deaths. Lung, breast and stomach cancers are the most common types.

Once, there lived a poor man in a small village. He was very clever but didn't want     1    (work) at all. He lived on     2     the villagers gave him every day. One day he got a basket of eggs     3       a kind lady. He began to think that he would save eggs until they were in short supply. Then he could earn a small amount of money by     4     (sell) them at a-very good price. And then he would buy a couple of goats.   Very soon, he would have     5     large group of goats. The goat milk would bring him much more money. With the money, he would buy a cow.    6     (it)milk would bring him a lot of money. He would become much    7    (rich ), build a big house and marry a pretty woman. They would have a lot of     8     (child). While he was lost in thought,     9    (unlucky ), he fell over a stone and all the eggs dropped onto the ground. He was very sad. That     10     (bring) an end to the man's beautiful dream.