The beautiful Li River is one of the     1     (famous) tourist destinations, but the     2     (grow) in tourism has had negative effects on the river’s water quality. This report looks at the problem of water pollution and some actions that have been taken to deal with it.

Water quality in the Li River had suffered     3     (great) from an increasing volume of tourists, many of     4    frequently threw garbage into the river. Many tour boats contributed     5     the problem too. The local population rose rapidly, as well as     6     number of commercial and industrial enterprises. Water pollution levels increased, with more household and commercial waste ending up in the river. To feed more people, more chemicals     7     (use) to increase crop production. These chemicals led to severe water quality issues,     8     (cause) a decrease in the number of fish species.

Finally, a series of urgent steps were taken     9     (restore) the river’s original beauty. It     10     (believe) that the beauty of the Li River will be preserved for generations to come.

4 . A leaked IPCC draft reports, “Widespread use across millions of square kilometers globally of tree-planting and bioenergy crops could have potentially serious consequences for food security and land degradation (退化).” In other words, more massive monocultures (单种栽培) and more bioenergy crops, fueled by more fertilizers, could damage the structure of the environmental soil and its capacity to absorb carbon.

Everyone knows that to help ease the increasing climate crisis, we need to plant new trees. It’s said that the earth could support an additional 9,000,000 square kilometers of forest, potentially hosting 500 billion trees capable of capturing more than 200 billion tonnes of carbon dioxide at maturity. It would be a serious help to the environment.

Bioenergy now holds a 50 percent share of the world’s renewables consumption—as much as hydro, wind, solar and all others combined. It’s good news, but not entirely. If we consider that increasing desertification and rising ocean levels will take away more arable (可耕种的) land, we arrive at a crucial “trilemma”(三难困境). Should we use our spare soil for agriculture, reforestation or bioenergy?

Such a question would make sense in a multilateral, harmonious world, not on a planet where the richest country cancels an environment-saving agreement, thus encouraging the most tropically-forested nation to set about cutting trees.

Last year, 36,000 square kilometers of forest was cut down. Wouldn’t it be better to start by stopping deforestation altogether? Animal farming takes up 77 percent of the world’s arable land and provides us with 18 percent of the calories. Shouldn’t we cut back on global meat consumption? Modern bioenergy is already available. Shouldn’t we get rid of first-generation biofuels, which are produced from food crops?

5 . After decades of work trying to save the giant panda, Chinese officials have announced the species is no longer endangered. The pandas have been reclassified in the country from endangered to vulnerable after efforts to increase the population. Now the number has risen to 1,800 in the wild.

“China has established a relatively complete nature reserves system,” Cui Shuhong, director of the Department of Natural Ecological Protection of the Ministry of Ecology and Environment, said on Wednesday. “Large areas of natural ecosystems have been systematically and completely protected, and wildlife habitats have been effectively improved.”

The latest classification upgrade reflects their improved living conditions and China's efforts in keeping their habitats integrated, Cui added.

Bamboo makes up 90% of pandas' diets, and the animals would likely starve without the shoots. Experts believe China’s efforts to replant bamboo forests have been the key to the increase in the population of pandas.

Generally speaking, a panda has to eat at least 26 pounds of bamboo every day to maintain its energy, so large areas of bamboo forests are primary to their survival.

Planting bamboo also has advantages for the planet, as the bamboo is grass, not a tree, and is incredibly efficient at absorbing carbon dioxide, as well as emitting 35% more oxygen than trees.

“The Chinese have done a great job in investing in panda habitats, expanding and setting up new reserves,” Ginette Hemley, senior vice president of conservation at the World Wildlife Fund. told the media. “They are a wonderful example of what can happen when a government is committed to conservation.”

Continuing China's success will be dependent on the country protecting land from agricultural and urban development. As land becomes rarer, measures will need to be extended to protect more land, to ensure bamboo forests can thrive and as a result, protect the future of the world's most lovable, lazy, and monochrome (black and white) creature.

8 . Ever wonder why there are so many people polluting the earth? Ever say to yourself： Hey, I wish that I could do more to help the environment? Have you ever thought about trying to help the earth but never really did it? Well, here are some pretty easy and skillful ideas for that green - earth desire inside you.

●Turn off your computer. By leaving it on all day you are creating more CO₂ than a regular passenger would, driving to and from work in one day.

● Ride your bike or carpool (合用汽车).Obviously, you are creating less CO₂ which will help the ozone(臭氧).

● Make a garden. Even simply grow some plants in your kitchen, which will help produce more oxygen while eating up some of that evil CO₂.

● Buy local groceries. It creates less impact on the environment. Besides, you're supporting your local farmers.

● Recycle. You had to see this coming. But you have no idea how much you are helping the environment by simply reusing a water bottle instead of buying a huge pack at the store.

● Don't run the water while brushing. It saves you money and helps the water resources.

● Open the curtains. Natural light is much prettier and it will keep the energy usage down.

● Rechargeable batteries. You have no idea how much it takes to get rid of batteries. Do yourself a favor. Save some money and some energy.

10 . A four-year-old boy who was crazy about collecting rubbish has finally fulfilled his dream of being a cleaner. Riley McCourt has admired the local rubbish collectors for ages, spending his days picking up waste on his street and wheeling bins (垃圾桶) to the side of the road to help out his neighbors. He loves cleaning and binning waste. His favorite chore is to empty the rubbish from the chip shop his mum runs. Two weeks ago, however, a disaster struck: Riley accidentally knocked over one of the bins and was accused of causing trouble.

Someone posted in the local Facebook group that Riley had put rubbish in the street, clearly unaware of his love for keeping the streets clean. Thankfully his innocence was quickly proven, and his local council decided to make his dreams come true by allowing him to work alongside the cleaners for a day.

Riley joined the waste collection crew on Wednesday, chatting with the team, helping with the recycling, and riding in the waste collection vehicles. He even got his own jacket. Riley's mum, Toni McCourt, said, “He loves the bins and trucks.” Riley's favorite day is definitely bin day. He goes round collecting the rubbish up on the street. The cleaners all know him when they spot him. He goes outside as soon as he sees them come round. He helps his neighbors put their bins out for collection.

Riley clearly made a good impression during his first day on the job, as community services manager Jane Carrol said she was very pleased with his enthusiasm for the role. Jane said, “Riley is clearly a keen recycler and who knows, when he is older I'm sure he would make an excellent member of the team here. It was a pleasure for the team to show him around the vehicles.”