This year marks the 50th anniversary (周年) of the discovery of qinghaosu,     1     is used as the main part for the most common and effective antimalarial treatment today. According to the World Health Organization, qinghaosu is     2     (benefit) to about millions of people in the world.

Until now, China     3     (train) thousands of anti-malaria workers for developing countries     4     built malaria prevention and control centers for 30 countries. During the 1940s, China was attacked by malaria, with nearly 30 million cases each year. In June 2021, the WHO announced China had finished the     5     (remove) of this disease within its borders.

Tu Youyou was excited to hear the WHO’s announcement. But a sense of responsibility quickly followed,     6     (inspire) Tu to ask her workmates how many countries had not destroyed malaria and how Chinese researchers could help.

Last month, during a meeting    7     (organize) by some officials, Tu said     8     number of cases and death rates of malaria has increased in some parts of the world. The disease     9     (remain) a serious public health challenge, and it is important for the international society to work together to achieve a malaria-free world, she added.

At the age of 92, Tu may not be able to work as hard as she did decades ago, but she reads monthly news on her team’s research and often offers her advice     10     key projects.

China earlier on Thursday successfully launched Tianhe from the Wenchang Spacecraft Launch Site,     1     (start) a series of key launch missions    2    aim to complete the construction of the station by the end of next year.

The construction of the space station and a state-level space lab,    3    (be) key goal to fulfilling the three strategic steps in China’s manned space program and    4    important   leading project for building China’s    5    (strong) in science, technology and aerospace.

China’s most adventurous space attempt, the multimodule space station named Tiangong, will have three main components — a core module    6    (attach) to two space laboratories — with a combined weight of nearly 70 tons. The core capsule, named Tianhe, is 16. 6 meters long     7    has a diameter (直径) of 4. 2 meters. The craft’s weight is equal    8    the combined weight of 15 standard-size automobiles.

The capsule will be     9     (centre) to the space station’s future operations, given that astronauts will live there and control the entire station from inside. It will     10     (use) to host scientific and technological experiments too. The entire station is expected to become fully operational around the end of 2022 and is set to work for about 15 years.

How did BYD build its dreams? BYD had an advantage from the start: unlike car makers that expanded to build electric models, it was     1     (original) a battery company that later started making cars.

Its chief executive Wang Chuanfu was born into a family of farmers. After earning degrees in college, he co-founded BYD along with his cousin in 1995. The two made a name for     2     (they) as manufacturers of rechargeable batteries     3     (use) in smartphones, laptops and other electronics-that competed with pricier Japanese imports. It became a publicly traded company in 2002. Electric Vehicles (EVs) were still in their early stages then, but     4     (official) were looking for a gap in the market that China could fill. For BYD, the batteries it had been making     5     (be) effectively the engines that would power EVs.

In 2008, US billionaire Warren Buffett bought a 10% stake (股份) in BYD Auto,     6     (say) that it would one day become “the largest player in a global automobile market that was bound to go electric”. Analysts say BYD owes its growth     7     its original business-batteries. They are among the     8     (expensive) parts of an EV and making them in-house saves BYD a lot of money.

“    9     is demand everywhere in the world for affordability,” says Mr Bill Russo, the Founder and CEO of Automobility. And the place     10     can offer that to the world right now, he adds, is China.