Scientists are learning the secret ways in which plants “talk” to each other. It has been known for some time that plants use chemicals 【小题1】（communicate）with each other. When 【小题2】（attack）by insects, the plant releases chemicals from the leaves that 【小题3】（eat）. This is like 【小题4】warning. When another plant detects the chemicals, it starts to release 【小题5】（it）own, different chemicals. Some chemicals drive insects away.

【小题6】（surprising）, plants also use sound to communicate. Some plants make noises with their roots. Some trees make clicking noises when there is not enough water, 【小题7】（indicate）drought is arriving.

Most surprisingly of all, plants have an 【小题8】（amaze）system of communication that can link nearly every plant in a forest. It is called “wood wide web”, 【小题9】is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food 【小题10】each other.

In 2014, China and South Korea agreed to collaborate on research into giant pandas. Two years 【小题1】 (late), in March 2016, the pandas Aibao and Lebao were transported to Samsung Everland in Korea, 【小题2】 they have since become a symbol of the strong bond between the two nations. In July 2020, Fubao was born in South Korea, and both countries have been working together 【小题3】 (ensure) that the panda cub grows up healthy and strong.

Jiang Zheyuan, also known as “Grandpa Panda,” is the breeder responsible for caring 【小题4】 the pandas at Everland. According to him, the pandas follow 【小题5】 regular routine of eating, resting, 【小题6】 (exercise) and interacting with tourists every day in their panda paradise. Fubao, in particular, is growing quickly and 【小题7】 (healthy) and eats more than her parents 【小题8】 (do) at her age.

The Panda Paradise 【小题9】 (receive) between 7,000 to 10,000 visitors daily who come to see the giant pandas. Jiang Zheyuan expressed his gratitude for the concern and 【小题10】 (affect) shown by Chinese friends online regarding the welfare of the Aibao family.

Looking out of the window of his Ford truck, Bob Fitzgerald sees large, undesirable plants growing in the fields.【小题1】(visitor) to his neighborhood in Princess Anne, Maryland 【小题2】(main) see dying forests and empty farmland.

Fitzgerald says the land【小题3】(be) in his family for over 3 centuries. “I’d say in the next 20 years. You’re going to lose【小题4】very high percentage of that land.”

The land around the Chesapeake Bay has been sinking for hundreds of years. But   climate change is making things【小题5】(bad). As sea level rises, salt water is entering rivers and other waterways. As a result, the ground is becoming too salty for crops【小题6】(grow) on.

Maryland’s Eastern Shore is home to some of the oldest farms in North America. Fitzgerald says he has seen big changes during his life.

“You just can’t believe【小题7】it’s been taking things over in the last 15 or 20 years. I can show you land around here that people raised tomatoes on when I was a little boy. And now it’s gone.”

Around the world, scientists warn that coastal farms are   under【小题8】(threaten)   from rising seas and salt water. A World Bank report estimates rice production in coastal areas of Bangladesh may fall【小题9】15 percent by the year 2050. Another study found hundreds of millions of people will【小题10】(force) to move inland because of rising waters.