Reading good books is one of the greatest pleasures in life. It 1 our happiness when we are cheerful, and lessens our 2 when we are sad. A good book may absorb our attention so 3 that for the time being we forget our 4.

    Whatever may be our main purpose in reading, good books should never fail to give us 5. With a good book in our hands we will never be 6. Whether the characters in the book are taken from real life or are purely 7, they may become our companions and make us laugh. The people we meet in books may 8 us either because they are similar to our close friends or because they present 9 types whom we are glad to welcome as new acquaintances. Our human friends sometimes 10 us, but the friends we make in books are always respect us. By turning the pages we can 11 them without any fear of hurting their feelings, When our human friends 12 us, good books are always there to give us sympathy and encouragement.

    One of the most valuable gifts from books is 13. Few of us can travel far from home.14 all of us can lead varied lives through the pages of book. When we wish to 15 from the dull realities of everyday life, a book will help us when 16 else can. To travel by book we don't have to 17 and save a lot of money. Through books we may gel the thrill of adventure without 18. We can climb high mountains or cross the hoi sands of the desert,19, through books the whole world is ours for the asking. The 20 of our literary experiences are almost unlimited.

将一根绳子连续对折2次，然后每隔一定长度剪一刀，共剪了3刀，这样原来的绳子被剪了____段．

根据对话内容选择合适的答案填空。

A: Look, there are many animals in the zoo. Let's go and see them.

B: OK. Let's go.

A: Tom, there are so many birds in the tree.

B: Yes. There’s a monkey, too. I love monkeys.

A: There are two snakes under the chair.

B: Yes. But I don't like snakes.

A: Look, there are four chicks here.

B: How beautiful they are!

A: Two leopards are over there.

B: They are beautiful, too.

我国古代经济中心经历了从北方向南方逐渐转移的过程。从唐朝中晚期到五代，宋朝，江南地区的农业生产水平逐渐超过北方，下列对其原因的表述正确的是（    ）

长120厘米，宽30厘米的长方形的面积是____，合____平方分米