Will you be happy when you leave your mother? Or will you miss your mother? If you do, you are homesick. “homesick” is a word made up of HOME and SICK. You know each word, right? But do you know the meaning when you put them together? It is Sick For Home. It means you miss your home. You miss the delicious food at home.

    Now think for a minute about SEASICK. Is Seasick the same as Homesick? Does seasick mean Sick For Sea? It means something quite different. “Seasick” means Sick By The Movement On The Sea. If you travel by ship and you feel seasick, you just want to go back home and have a good rest. Why? Because you feel sick on a ship.

    Have you ever heard of a person being heartsick? If you're heartsick, you are sad and your heart is broken. And we also have other words made like this, such as “handshake” and “handbag”. Isn't it interesting? It is also helpful to know something like this in your English study.

开放与交流是隋唐时期的主要特征。唐朝统治者以博大的胸怀吸纳了来自世界各地的朋友们。唐朝的哪座城市，既是当时各族交往的中心，又是一座国际性大都市（   ）

海洋环境问题是指（　　）

①海洋资源开发问题             

②海洋污染问题

③海上航运与空间开发          

④海洋生态破坏．

科技进步推动了资本主义的巩固与扩大，促进了世界市场的形成与发展。阅读材料，回答问题：

材料一：工业革命产生的强大推动力逐渐使世界紧密地联系在一起。人和货物可以借助多种快捷便利的方式在世界各地之间流动，信息的传递也变得非常容易。

材料二：日本明治政府领导人……并不对西方文明本身感兴趣，而仅仅对其中增加了民族力量的那些组成部分感兴趣。……他们提出了一个非凡的改革方案，宗旨在于建立一个强大的日本，而不是完全模仿西方国家。

材料三：1971年，尼克松说：“西欧与日本都是美国非常强有力的竞争对手。朋友，是的。盟友，是的。但是，他们正在与我们竞争。在经济领域的问题上，他们在全世界同我们竞争得非常激烈。”

材料四：据下图和资料，苹果第五代iPad共有四百多个部件；苹果在全球有数百家供应商，分布在中国内地、中国台湾地区、新加坡、马来西亚、泰国、捷克以及美国等地，但是大部分产品是在中国组装的。