2 . In 1994, The Brazilian photographer Salgado went back to his homeland in Minas Gerais, Brazil. He was__________ to see the land run by his family. The thick forest there was once a paradise   ( 乐园 ) for him and his friends, bringing them___ memories.

To his horror, he saw a totally different____. Only 0.5% of the land was covered with trees. “The land was as sick as a serious patient — everything was______ due to deforestation (砍伐森林),” Salgado said___ during a meeting on climate change in Paris.

Salgado ______that he should do something about it. Then he ______the bold idea of replanting trees on the land, which beyond his expectations, received___ from his wife and relatives. Soon the whole family _______   and the results are remarkable. _______, the land is changing: It is carpeted with green trees again and some of the insects, birds and animals living in the land before____. The land has been brought back to life. The___ family’s hard work also impressed people around them. They___ cutting down trees and began to protect the environment.

“The work over the years is quite difficult but well worth the_____ and I think every   little bit of work_____,” said Salgado. Therefore, everyone should play a part in protecting   the environment.

3 . The last complete ice shelf in the Canadian Arctic has collapsed(倒塌).The Milne Ice Shelf is _______ Ellesmere Island,Canada.The shelf lost _______ 40 percent of its area in just two days at the end of July.

Above normal air temperatures,offshore winds and open water in front of the shelf are all parts of the _______ for its break-up.The shelf area shrank(缩小）by about 80 square kilometers.By comparison,the island of Manhattan in New York _______ about 60 square kilometers.Temperatures in the polar area have been _______ intense(强烈的).Summer in the Canadian Arctic this year has been 5 degrees Celsius_______ the 30-year average.That has _______ smaller ice caps,_______ can melt quickly.As a glacier disappears,more bedrock is left _______.This then speeds up the melting__________. A research camp,including instruments for measuring water flow through the ice shelf,was lost when the shelf at Ellesmere Island collapsed.

＂It was only a __________ of time,"said Mark Serreze,director of the National Snow and Ice Data Center. His study showed the ice caps were__________ to disappear within five years.Their disappearance was __________ last month,when NASA satellite images of the area showed a complete lack of snow and ice.Serreze's __________ trip to the Arctic was many years ago."When I was there in the 1980s,I knew every square inch of those ice caps,"Serreze said."You have the good __________.It's like your first girlfriend.I want her back."

4 . I take the train to work every morning from a train station near my house. I can get to the station quite __________ because there is a shortcut(捷径) to the station. But in the summer, it can get quite smelly because of all the __________．So I always try to __________ through it.Today I was trying to do so as usual __________ something made me stop for a moment.I saw the most beautiful __________ by an old woman walking in front of me with the help of a white __________．

She was short and __________ and had white hair. She was walking __________ as each step took some effort. I hadn’t specially noticed her __________ , until she stopped near a rubbish bin.

She slowly placed her walking stick __________ the rubbish bin.Then she leaned(倚靠) on it with her right hand. She bent down and __________ the rubbish. She clearly found it __________ and it took her a while. She __________ some rubbish with her left hand and slowly straightened(挺直) herself up again. All the while she used the rubbish bin to __________ herself. She threw the rubbish inside the bin and then __________ walking. It all took her great effort.

There’s so much rubbish and no one ever does __________ about it. I was moved to __________ this old woman make such a great effort to keep even a small part of it __________ ! I haven’t been able to __________ thinking about that all day.

I want to follow her example. I’ve decided to pick up rubbish off the __________ if I see it from now on. I hope people will do the same as I do.