Yesterday, I saw the old lady fall down when I went to school. I was going to help him up. At that moment, a passer-by stop me, saying I might be misunderstood. Hearing from his words, I began to slow down my steps. However, another student, that saw everything, went quick up to help. The old lady said nothing but lots of thank to the boy. I felt badly and ashamed. Help others is forever a virtue of China. We can’t let it disappear. I will try my best reach out my hand next time.

   My aunt came to my home with her six-year-old daughter Alice this morning. While my aunt was talking with my mom at home，my cousin felt a bit __________. So I suggested that I go out with her. My aunt happily __________. So we went to the park near my home together. There we bought two __________ and started flying them. While we were doing that，Alice couldn't help __________. She jumped up and down and I __________ she was truly having great fun. And I must __________ that I haven't enjoyed myself like that for a long time.

Afterwards，we sat down on a bench，looking at the garden. As we were __________ there，Alice looked up at me and said，"What a __________ day today！"I smiled at her and agreed. I then started __________ what we had done today. We did something quite ___________，yet we were very happy.

Many people wait for their "best days". But I think today is our ___________ day. That's a lesson I ___________ today. As adults，we often make plans ___________in order to have a great day. Some people think that they can have a nice day through spending a lot of ___________. I think we should be more like ___________.They don't think about money or what will happen tomorrow. They really live in the moment and enjoy the ___________！

We often hear the expression that we should live in the ___________. How do we do that？We're not doing such a good job. ___________ today is important as we are exchanging（交换）a day of our life for it. Yesterday is ___________. Tomorrow is a mystery. Today is a gift. That's why it is called the present, ___________ seize（抓住）the day！

   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."

   Determined to keep my private life from the census taker（人口普查员），I locked the front door. After several more days of _________to answer the door，one afternoon I _________ to my car. The census taker，who had been _________all week to catch me，spotted me and ran up to _________.I told the man firmly I would not answer his questions. He glared at me and _________ walked away.

A week went by. All my neighbours had _________their census questions，and the census taker _________. Then one afternoon there came a knock at the door. I answered the door and found a middle-aged lady. Suddenly，I realized my _________."I'm Carla with the US Census Bureau，"she said，_________herself the way the former one had. Only there was something __________：she was smiling.

So I let her in, offered her a bottle of water, and waited for the __________. But first, she asked about my family. __________she told me about her own family and something else. I __________ a lot about Carla, as she was in no hurry to get to the __________. She was pleasant and relaxed. And so was I. After about an hour, she put away her _________ and thanked me for the water, __________as she got into her car. I realized I didn't __________her visit at all.

Carla would call every few months, asking if our __________had changed. We always talked about our families and lives __________we were friends.