2 . When Arun Krishnamurthy was a teenager, he witnessed a pond near his home filled up with trash. The damage to the pond made a great_________to the beautiful pond in his memory. So he decided to do something to_________its original beauty.

In 2007, Krishnamurthy and his team founded the EFI to_________the garbage and restore the natural habitats of birds, frogs and native plants, giving wildlife a chance to_________. Over the past few years, the EFI has _________restoration work on 112 lakes and ponds._________, EFI aimed to restore lakes and ponds. However, its far -reaching influence surprised Krishnamurthy. The work has_________India's water supply for it helps groundwater recharge.

In fact, groundwater is_________to India, accounting for 80% of its water supply. However, overusing water is reducing reserves greatly. Government is required to take some measures, but Krishnamurthy believes it is _________that plays a significant role.

Currently, the EFI is facing a__________when it comes to waste disposal(处理). Up to 95% of the solid waste it __________ from lakes and ponds ends up in landfills. The group is researching on various__________of reusing and recycling more of the trash.

Despite the difficulties, he feels__________not only for India but for the world. He__________everyone to care for lakes and ponds, the dumping(倾倒)of the waste and needs of wildlife. With the right__________, each of us can make a difference to our planet.

4 . Lots of people have trees to look at from their bedrooms, but my perspective（视角）is different. My name is Miranda Gibson. I have been living at the top of a tree_______60 meters for 449 days now. Some people might wonder_______on earth I would choose to do this.

Stretching out below me is one of Tasmania's last areas of ancient forest---in an area that was proposed for World Heritage protection, yet remains under the_______of industrial logging（砍伐）. On 12 December 2011, machinery（大型机械）rolled into the forest and the destruction began. I couldn't_______the thought that these forests would be_______forever. So, on 14 December 2011, I packed up my life,_______of my job plans, and climbed 200 feet onto the top of this tree. I have been here ever since.

People often ask me what I do up here all day. It's busier than you would imagine. Like an office job, but with a splendid_______! I spend my days writing about this forest and its urgent（紧急的）need for_______on my blog.

Life in the treetops can be_______at times. I have times when I feel frustrated（沮丧）and wish I could________, to anywhere, just to have a change of scenery for a minute! There are also times when I feel terribly________. I miss my friends and family. My only connection to the outside world is my phone and computer, which I charge via solar panel.________these times, I find myself loving the experience. Living on the tree has been inspiring. I am willing to________up here for as long as it takes, but I honestly hope it won't be too________before I will be able to get down and put my feet on the ground in a forest that is no longer under threat—in a forest that will be________guarded for future generations.