Agricultural experts say crop diversity is important to feed the【小题1】(increase) population of our planet. They say having a large variety of plants also【小题2】(help) to protect against possible crop diseases and future crises. But many experts say the number has decreased sharply during the past century.

One of the world's 【小题3】(large) seed conservation projects has predicted further losses. The Millennium Seed Bank Partnership is warning that up to one hundred thousand plant species could 【小题4】 (permanent) disappear. The rich collection of genes【小题5】 decide their qualities would disappear with them.

Many experts blame climate change and loss of habitat, normal growth area, for damaging plant life. They say human【小题6】(activity) and poorly planned, overly heavy use of land also are responsible. Modern business farming is responsible【小题7】loss of farmers' traditional crop varieties. The "Green Revolution" of the twentieth century changed agriculture. Some experts say the use of modern commercial farming methods saved millions of people from【小题8】(starve). Farmers planted, watered, and fertilized their crops with the help of machines. They treated their fields with chemicals【小题9】(control) diseases and insects. Harvests grew larger and higher quality,【小题10】 another result was that some traditional crops were lost. Damage to the environment over the past century makes people believe that crop diversity also suffered.

After graduating from the university 【小题1】 a bachelor’s degree in biotechnology in 2020, Jiang Ming started work as a keeper at the forest zoo, which is home to more than 3, 000 animals from 260 species.

Born and raised in a rural area of Jiangsu, he 【小题2】 (love) animals and watched documentaries about them since childhood.

During his job interview at the zoo, when Jiang was asked 【小题3】 he had any experience in saving animals, he said the first one he 【小题4】 (help) rescue was a small turtle his father found in a river near his village.

Members of an elephant herd【小题1】(make)a 500-kilometer trip through southwestern China have become international stars. The elephants are traveling from their home,a【小题2】(mountain) area of Yunnan province, toward the city of Kunming. Sixteen animals【小题3】(start) out in the group last year. But the government   says two retuned home and a baby was born during the walk.

Officials in China say they are not sure【小题4】(exact)what persuaded【小题5】elephants to make their long trip. Some experts say the elephants might have left because their leader might have gotten lost.

Asian elephants are loyal 【小题6】   their home areas unless there are major changes to the environment, a loss of resources or development . Elephants【小题7】(give)the top level of protection in China. This permits their numbers to continually increase even as their natural habitat shrinks.

Chinese officials have ordered people【小题8】(stay)inside and not to look at the elephants or try to keep them away with fireworks or other things. Officials in cities have used building【小题9】(equip) to block the animals from entering 【小题10】 have dropped food to keep them away.