Being a veterinarian(兽医), I had to examine a ten-year-old Irish Wolfhound named Belker. The dog's owners, Ron, his wife Lisa, and their boy Shane, loved Belker very much.

    I examined Belker and found him {#blank#}1{#/blank#}(die) of cancer. I told the family we couldn't do {#blank#}2{#/blank#} for Belker, and offered to perform the euthanasia(安乐死) procedure in their home.

    As we made arrangements, Ron and Lisa told me they thought {#blank#}3{#/blank#}would be good for six-year-old Shane to watch. They felt Shane might learn something.

    The next day, Belker's family surrounded him. Shane seemed so calm, petting(拍) the old dog for the last time, that I wondered if he understood {#blank#}4{#/blank#}was happening. Within a few minutes, Belker slipped {#blank#}5{#/blank#}(peaceful) away.

    The little boy seemed to accept it without any difficulty. We sat together after Belker's death,{#blank#}6{#/blank#} (wonder) why animal lives are shorter than human lives. Shane, having listened quietly, said, “I know {#blank#}7{#/blank#}.”

    {#blank#}8{#/blank#}(surprise), we all turned to him. What he said next amazed me. It has changed my life.

    He said, “People are born so that they can learn how to live {#blank#}9{#/blank#}good life—like loving everybody all the time and being nice, right?”

    The six-year-old boy continued, “Well, dogs already know how to do that,{#blank#}10{#/blank#} they don't have to stay as long.”

    There is much discussion about the necessity of daily homework for students. Some say homework is necessary since only practice{#blank#}1{#/blank#} (make) perfect, while others disagree. In my opinion, daily homework is necessary for students.

    However, this might be misleading that one may believe all forms of homework are necessary{#blank#}2{#/blank#}(actual), only proper amount of homework in proper form is{#blank#}3{#/blank#}(accept); some homework may not only fail{#blank#}4{#/blank#} (help) the students, but on{#blank#}5{#/blank#}contrary bore them so much that they may lose their interest in studying. “Proper”homework, in my opinion{#blank#}6{#/blank#} (vary) in its forms{#blank#}7{#/blank#}might be some extensive reading, a paper, or even just a game, as well as other ordinary exercise. And it should leave enough{#blank#}8{#/blank#} (free) to the students so that they could do things they really like to do with self-motivation, rather than unwillingness. We should always remember that homework is something for us to guide the students, rather than drive them. Only if a teacher {#blank#}9{#/blank#}(keep) this {#blank#}10{#/blank#}his/her mind, the homework could be of most help to the students.

    The Internet is an amazing information resource. Students, teachers, and researchers use it as {#blank#}1{#/blank#}investigative tool. Journalists use it to find information for stories. Doctors use it to learn more about unfamiliar diseases and the {#blank#}2{#/blank#} (late) medical development. Ordinary people use it for shopping, banking, bill-paying, and communicating with family and friends. People all over the world use it to connect with individuals from {#blank#}3{#/blank#}countries and cultures. However,{#blank#}4{#/blank#}there are many positive developments{#blank#}5{#/blank#} (associate) with the Internet, there are also certain fears and concerns.{#blank#}6{#/blank#}concern relates to a lack of control over {#blank#}7{#/blank#}appears on the Internet. With television and radio there are editors to check the accuracy or appropriateness of the content of programs, and with television there are {#blank#}8{#/blank#} (restrict) on what kinds of programs can {#blank#}9{#/blank#} (broadcast) and at what times of the day. With the Internet, parents cannot check a published guide to determine what is suitable {#blank#}10{#/blank#}their children to see.

    Red is used in many American expressions. It can be used to show {#blank#}1{#/blank#} (happy), as in “a red letter day. This is a day when something special happens. The expression is probably based on church customs. {#blank#}2{#/blank#} almost six hundred years, church calendars have been marked with red to indicate special holy {#blank#}3{#/blank#} (day).

The expression “a red-letter day” is often heard in daily life. A red-letter day is {#blank#}4{#/blank#} day that people are feeling quite happy. You might tell your friends that yesterday was a red-letter day because you {#blank#}5{#/blank#} (win) some money in the state lottery (彩票).

    “Rolling a red carpet” is another {#blank#}6{#/blank#} (common) heard expression, {#blank#}7{#/blank#} represents a warm welcome. A city may “roll a red carpet” for {#blank#}8{#/blank#} (it) baseball team when the team arrives home after winning the championship.

    Red is also used in some expressions that {#blank#}9{#/blank#} (be) not happy. “Red-handed” is an example. To be caught “red-handed” is to be found in an act of wrong doing. For example, a mother might say she caught her son red-handed, {#blank#}10{#/blank#} (take) cookies out of the cookie jar.

You Are a Time Traveler

    Time travel has long fascinated people. Traveling to the past or future would allow you to live in exciting periods of history or get a glimpse(一瞥) of {#blank#}1{#/blank#} the future holds. Think about it. If you could travel in time, where would you go? Perhaps you would voyage far ahead of the present day {#blank#}2{#/blank#} (meet)your future self! What about watching an original performance of {#blank#}3{#/blank#} Shakespeare play in Elizabethan England? Or maybe you would pay a visit to {#blank#}4{#/blank#} (you)as a baby.

    Since these ideas are universally appealing to everyone, it is {#blank#}5{#/blank#} (nature)that time travel interests so many writers, filmmakers, and scientists. It has been depicted in a {#blank#}6{#/blank#} (various) of media, such as literature, film, and science reports. But you might be surprised to realize that {#blank#}7{#/blank#} the smallest sense of the term, we are all time travelers. Even as you sit here {#blank#}8{#/blank#} (read)this article, time is racing forward. The future becomes the past as soon as it happens. The present is so fleeting(稍纵即近)! Everything you do quickly {#blank#}9{#/blank#} (become) part of the past, and so it is that we move through time. The famous scientist Albert Einstein, assigned a mathematical formula to this idea, {#blank#}10{#/blank#} is called The Theory of Relativity.

    According to a recent survey, violence does exist in schools. Students show their fear and parents and teachers also {#blank#}1{#/blank#} (express) their great concern about it. Experts hope {#blank#}2{#/blank#} whole society will pay more attention to the mental health of adolescents.

    Nowadays, school violence is a big issue. I think this is a phenomenon (现象), which {#blank#}3{#/blank#} (call) for our great concern. We should try every effort {#blank#}4{#/blank#} (prevent) school violence happening, for more and more students would drop out of school if their personal {#blank#}5{#/blank#} (safe) could not be guaranteed (保证). In fact, violence can be learned. {#blank#}6{#/blank#} (actual), children learn violent behavior from adults or from {#blank#}7{#/blank#} they see on television or the Internet.

    If I meet with school violence, I will not answer violence with violence, for it will result in {#blank#}8{#/blank#} (much) fights. I will tell my teachers or parents about it. I think they will help me deal with it well and protect me {#blank#}9{#/blank#} the bad guys.

    All in all, we students should behave {#blank#}10{#/blank#} (we) and keep away from violence.