When I was in high school, most of my friends had bicycle. I hoped I could also have it. One day I saw a second-hand bicycle, that was only one hundred yuan. I asked my father the money, and he said he could only give me half of the money. I should earn the other half by myself. So I went to sell newspapers after the school. My father was pleasing when I showed him the money a month late. He gave me the other fifty. You can imagine how happily I felt when I ride to school on my own bicycle.

   Two old beggars (乞丐) were sitting on a busy street corner of a big city. They watched _______ as a lot of people walked by without looking at them. Sometimes, a kind-hearted woman or a small child would _______ a few coins in the hats in front of them.

Today was not a _______ day for begging. The men were able to _______ enough for a big meal. As it was getting dark, they started to _______ their things.

Just as they were getting ready to leave, they _______ a man walking toward them. He was a _______ man. They could tell that from his fine clothes. The first beggar said to the second with _______, “He’s coming our way!” The man stopped, _______ into his pocket and took something out. What looked like a piece of hard ________, wrapped (包裹) in white paper, hit each of their waiting hats. The rich man turned and ________ his way.

“He could have easily left us a few ________ or a bill, but he laughed at us with a piece of rock candy,” said the first beggar. He looked at the offering ________. “There’s no way we can ________ this — we have no teeth.” With these words, he picked up the thing and threw it away. Then he collected his things and ________ .

The second beggar wanted to do the same, ________ a second thought made him change his ________.“I haven’t had anything like this for ages,” he thought. “How ________ of that man to offer me something so sweet!” With that, he opened the white paper. To his ________, there was no hard rock candy inside. ________, a shiny white pearl (珍珠) worth thousands of dollars fell into his hand.

   When 65-year-old Joan Price got a check in a hospital in November，she knew she wouldn't be returning to her home. But she _________ to pay her rent so her cat，Isis，would have a _________ place to live in.

Price got _________ wrong with her liver 40 years ago. She was unable to walk or stand without _________—a difficult condition，but her only _________ was for Isis.

The manager of Price's building in Fort Lauderdale，Florida，_________ the cat and cleaned her litter box，but Isis，a 2-year-old black cat that Price had _________，was alone. And with no friends or family nearby，Price _________ that Isis would have no one to care for her.

"I was so anxious. I cried every night，"Price _________ Vetstreet. com. "I don't care about myself. I'm ready. But I am worried if Isis is OK."

Price began getting in touch with rescue groups to find a new home for Isis，but she wasn't having any luck ____________ Dorian Wagner，a Florida blogger，who often helps local rescues find homes for cats，____________ Price's unpleasant situation.

Wagner ____________ Price's story with her Facebook community. Soon so many people were ____________ in helping that Wagner started a Facebook page to ____________ updates and organise assistance.

The ____________ quickly found a foster home（寄养家庭）for Isis，but they knew she needed a ____________ home，so Wagner worked with Good Karma Pet Rescue and began to ____________ whoever hoped to adopt Isis.

Soon they found a home with the help of a friend in Michigan, and another member of the Facebook group offered to ____________ the cat to meet her new owner.

When Price learned that Isis would have a new family, she was ____________ deeply. Just knowing Isis was taken care of gave her much ____________.

   Caroline Solomon was on her high school's swim team. But at times she could not go into the creek（小溪）near her home. It was simply too polluted. "I decided I wanted to do something about it，"she recalls. So she studied environmental science and public policy at Harvard University in Cambridge. Later，she went to graduate school. Some of her classes could be challenging，though，since she couldn't hear her teachers. "I've been deaf since I was 15 months old，"Solomon notes.

Today she teaches biology at Gallaudet University in Washington，DC. She has no trouble communicating with her students. They，too，are primarily deaf or hard of hearing. That's why all classes at Gallaudet are taught in American Sign Language. Solomon also has an active life outside the classroom. She especially enjoys hiking，biking and other activities with her family.

Her research takes her to the Anacostia River. "It is very close to Gallaudet，and I easily bring my students there，"she says. Water running through local forests and marshes drains into this river，so does water running off urban streets，golf courses and industrial sites." The river's watershed（流域）kind of concentrates all the things that happen when humans mess with the natural landscape，"she explains. Not surprisingly，this river has developed a reputation for being quite polluted.

Solomon has been focusing on how pollutants affect tiny organisms that form the base of the river's food web. "I am now looking at the bacteria population，" she says，"to see what types there are."

Solomon wants to see more students who are deaf or have other disabilities make a difference in environmental science and other fields. As she often says, "If I can do it, you can do it."