细读课文深感悟。

一阵沉默之后，一只小手颤抖地举起来。忽然又放下去，然后又举起来。“一阵沉默”是由于(    )

I can’t find my dog. I ____ him  now

设M={x|0≤x≤4}，N={y|﹣4≤y≤0}，函数f（x）的定义域为M，值域为N，则f（x）的图象可以是（　　）

    Have you read the book called Uncle Tom's Cabin? It's said that it is one of the greatest books in America．The book ____an unpleasant social problem—slavery(奴隶制)in the Southern States of America. It first came out in 1852．Over 300,000____were sold out in a year．People had ____ideas about the book．In the North, more and more people began to____theft support(支持)for the freedom(自由)for the black people after they read the book, but in the South, many people were very____at the people in the North. In 1861, the war between the two parts of the country____. Uncle Tom's Cabin surely played a part in the ____. In 1862, Abraham Lincoln met Harriet Beecher Stowe, the book's ____. As he took her hand. Lincoln said, "So this is the little lady who started this big war."