关于海底地形的叙述，正确的是（） A．海洋的主体部分是大陆_爱下问搜题

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问题选择题

关于海底地形的叙述，正确的是（）

A．海洋的主体部分是大陆架

B．海洋深处的地形一般是大陆架

C．海沟都位于大洋的中部

D．大陆架深度一般不超过200米

答案

D

题目分析：海洋的主体部分是大洋盆，海洋深处的地形一般是大洋盆，海沟一般由板块运动的交界处，特别是大洋板块与陆地板块的交界处，大陆架深度一般不超过200米。

点评：本题还可以考查我国海域、内海、海洋资源等知识。

问答题

对号入座

名称	序号	简称	行政中心
黑龙江省
内蒙古自治区
广东省
台湾省

完形填空

Jack Baines is a self-made millionaire, but his beginnings were very lowly. He was the youngest of eight children. His father had a 16 in a cotton mill (纱厂), but he was often 17 to work because of poor health. The family couldn’t 18 to pay the rent or bills, and the children often went 19 . After leaving school at the age of 14, Jack was 20 what to do when Mr Walker, his old teacher, offered to lend him ￡100 to start his own 21 .
　　It was just after the war. Raw materials were not enough, and Jack saw a 22 in scrap metal(废弃金属). He bought bits of metal and stored it in an old garage. When he had built up a large amount, he sold it and 23 plenty of money.
　　Jack 24 working hard. After one year he succeeded in 25 the ￡100.
　　By the time Jack was 30 years old he had 26 his first million, and he wanted to 27 this achievement by doing something “ 28 ”. With all his money it was 29 to build a beautiful home for himself and his parents. In 1959, “Baines Castle” was built in the 30 of the Lancashire countryside. It was one of the finest buildings in the country.
　 Jack has recently sold “Baines Castle” for ￡500 million, 31 Jack still can’t get used to 32 the good life. He can 33 be found drinking with the locals at the local pub（酒吧）.
“I remember being very 34 as a child, but never 35 as a child,” says Jack, “and I will never forget where I came from and who I am.”

C．interesting