单选题 American Blacks experienced a revolution after 1945, a revolution in expectations. Following World War Ⅱ, the steady movement toward first-class citizenship for Black people quickened, with significant actions taking place in courts of law, in voting booths, in restaurants and in the streets of the nation. A decade of intense civil rights activity was launched in 1954 when the United States Supreme Court declared segregated schools to be unconstitutional. In 1955, Dr. Martin Luther King, Jr., effectively organized the Blacks of Atlanta, Georgia, in a bus boycott. The boycott lasted two years, and when it was over, Blacks no longer were degraded by being forced to sit or stand in the rear of buses. In 1960, a group of Black college students decided that they, as well as white persons, had the right to eat at a lunch counter in Greensboro, North Carolina. This sit-in sparked an aggressive national movement and, in the next few years, thousands of young men and women—Black and White, North and South—overturned local laws and customs that had maintained segregation. Sit-ins, pray-ins, freedom rides, freedom marches and demonstrations to open all schools to Black children took place across the nation.

单选题Scientists who study the brain have found out a great deal about how we learn.They have_____21_____that babies learn much more from the sights and sounds around them than we_____22_____before.You can?

单选题 You must take ______ for granted that I will help you.

单选题 —Must I finish the term paper before Friday? — ______.

单选题 The foreign visitors said that they wouldn't mind ______.

单选题 'I missed the train home last night.' 'So ______'

单选题 ______ to hurt her feelings, he did not tell her the truth.

单选题A. they spent on their wedding B. It can be small C. It really was D. Yes, that's true E. I wouldn't want a small wedding F. I like a big wedding G. I'd rather have a small wedding H. they invite a lot of people Dodd：Their wedding was absolutely beautiful． Gwen： 56 ．1 want a wedding like that． Dodd：How much do you think 57 ? Gwen：I think it might’ve cost them a nice chunk of change． Dodd：Do you want a big wedding like that? Gwen：Not really． 58 ． Dodd： 59 ． Gwen：Why not? Dodd：I want my wedding to be big and memorable． Gwen： 60 and memorable too． Dodd：Well，to each his own． Gwen：You are absolutely right．

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单选题 New ideas have been put into practice ______ he was elected our leader.

单选题 It was not until the accident happened ______.

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单选题 The garden requires ______.

单选题Researchers are trying to（） whats wrong with their experiments.

单选题 Let's think of a situation ______ this idiom can be used.

单选题Many a young scientist__engaged in the research work.

单选题 Please keep me informed ______ the changes of your address as soon as possible.

单选题 This October, the interact celebrated its 40th birthday. In the past 40 years, this great invention has changed our lives in many ways, including our shopping habits. *A big attraction. Not long ago, I became an online shopper. I had heard about online shopping before, but I had no intention of following the trend. It was not until my room bought some cosmetics via the internet and both morn and I tried them and were satisfied with the purchase that I finally decided to register for Taobao, China' s leading e-commerce website. Soon, I found cyberspace to be a shopping paradise. There are a lot of cheap daily necessities such as clothes, books, stationery etc. Lots of choices, lower of prices and great convenience making shopping online a big attraction. *A new platform. Generally speaking, I'm satisfied with goods I' ve bought online, but it doesn't means that I can fully trust e-shopping. On many BBS forums online shoppers bitterly condemn a few e-shops for selling low-quality goods and cheating them of their money. Since no one likes being cheated, some people have turned to a new platform for e-shopping. They have started to buy and sell goods via social net-working websites--for example, two of my classmates have recently set up an e-store on Renren to sell colored contact lenses. (镜片)There is little risk of being cheated, since the sellers are the people we know well. *A good suggestion Although there are many advantages of doing business via social networking websites, I think it's improper for high school students to do business with schoolmates. First, doing business means shouldering huge responsibilities, and we' re not mature enough to have them. Second, our present main task is studying, when doing business is pretty time-consuming. Third, if you are dissatisfied with what you' ve bought from your friends, what will you do? If you retum your purchases, you may hurt your friends' feelings; if you keep silent, you may not feel happy. Shakespeare once said, 'To be or not to be, that' s a question. ' If you don' t want to face such problems, please follow suggestion: be careful when shopping online and don' t make profits from friendship.

单选题 Looking back on my childhood, I am convinced that naturalists are born and not made. Although we were all brought up in the same way, my brothers and sisters soon abandoned their pressed flowers and insects. Unlike them, I had no ear for music and languages. I was not an early reader and I could not do mental arithmetic. Before the World War I we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a crystal-clear memory of the dogs, the farm animals, the local birds and, above all, the insects. I am a naturalist, not a scientist. I have a strong love of the natural world, and my enthusiasm bas led me into varied investigations. I love discussing my favorite topics and enjoy burning the midnight oil while reading about other people's observations and discoveries. Then something happens that burning these observations together in my conscious mind. Suddenly you fancy you see the answer to the fiddle (迷), because it all seems to fit together. This has resulted in my publishing 300 papers and books, which some might honour with the title of scientific research. But curiosity, a keen eye, a good memory and enjoyment of the animal and plant world do not make a scientist; one of the outstanding and essential qualities required is self-discipline, a quality I lack. A scientist requires not only self-discipline but hard training, determination and a goal. A scientist, up to a point, can be made. A naturalist is born. If you can combine the two, you get the best of both worlds.