With the International Conference on Food Loss and Waste closed on Saturday in Jinan, Shandong Province, the country has sent a signal to     1     world that China will deal with issues concerning food security by reducing loss and waste in agriculture. With the theme of reducing food loss and food waste and promoting     2     (globe) food security, the three-day event     3     (hold) both online and offline attracted more than 300 participants.

The current world grain production is about 2.8 billion tons a year. Therefore, the loss of only one percentage     4     (be) equal to the loss of 28 million tons of food. This can feed about 70 million people.

In recent years, China     5     (make) great progress in controlling loss and waste in food, with main efforts including upgrading facilities and     6     (equip). In Shandong Province, China’s major grain producer, the Sinograin (中粮集团) grain storage site is equipped with 4,500 high-definition cameras and 280,000 temperature sensors     7     (ensure) that the stock (储备) is in the best condition. Data shows that during China’s 13th Five-Year Plan period (2016-2020) , about 13 million tons of food had been saved     8     (year) after production.

We cannot end hunger     9     we do not deal with the high levels of food loss and waste. Cooperation and innovations (创新) in business models, technologies and digital solutions could all contribute     10     reducing food loss and waste.

Charles Darwin was an English     1     (science) who studied nature. He is known     2     his theory of evolution (进化论)．

Darwin was born on February 12, 1809, in Shropshire, England. In 1831, Darwin boarded a ship     3     (call) the HMS Beagle and set out on a fantastic five­year journey around the world. His goal was     4     (study) the natural history of the areas he was to explore. Darwin was     5     (amaze) at the variety (多样性) of species he saw on his journey. He noticed that although the different islands had similar animals and plants, many seemed to have changed to adapt (适应) to their local environments. He noted some     6     (difference) between the mockingbirds found on San Cristobal, Floreana and two other islands. This led     7     (he) to wonder why they varied from place to place.

Darwin first presented his theory of evolution by natural selection (选择) in 1858 to explain how animals adapted to their environment to survive. The idea of evolution     8     (be) not new then, but Darwin’s theory explained how evolution occurred. When Darwin published On the Origin of Species in 1859, the book was     9     immediate success. However, it was not popular with people     10     believed that all the animals on the planet had been made at the same time by one creator. But Darwin scientifically proved all the species on Earth had evolved from earlier species!