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问题 多选题

下列关于图中所示光学现象的描述或解释正确的是（　　）

A．图甲中，小孔成的是倒立的虚像

B．图乙中，人配载的凹透镜可以矫正近视眼

C．图丙中，白光通过三棱镜会分解成红、橙、黄、绿、蓝、腚、紫七色光

D．图丁中，漫反射的光线杂乱无章不遵循光的反射定律

答案

A、小孔成的像是由实际光线形成的，可以用光屏接收到，符合实像的特征，不是虚像，此项错误；

B、近视是因为晶状体曲度过大，折光能力太强使像成在视网膜前面，用凹透镜矫正，此项正确；

C、白光由七色光组成，不同色光通过三棱镜后，偏折角度不同，所以被分解成七色光，这是光的色散现象，此项正确；

D、只要是光的反射，都遵循光的反射定律，镜面反射和漫反射都遵循光的反射定律，此项错误．

故选BC．

单项选择题

一台主机要解析 www.abc.edu.cn 的IP地址，如果这台主机配置的域名服务器为202.120.66.68，因特网顶级服务器为 11.2.8.6，而存储 www.abc.edu.cn 与其 IP 地址对 应关系的域名服务器为 202.113.16.10 ，那么 这台主机解析该域名通常首先查 询 ______。

A．202.120.66.68 域名服务器

B．11.2.8.6 域名服务器

C．202.113.16.10 域名服务器

D．不能确定，可以从这3个域名服务器中任选一个
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单项选择题

People often say that the Englishman’s home is his castle. They mean that the home is very important and personal to him. Most people in Britain live in houses rather than flats, and many people own their homes. This means that they can make them individual(个体的); they can paint them, and change them in any way they like. Most house have a garden, even if it is a very small one, and the garden is usually loved. The house and the garden are the private (私人的) space of the individual.

People usually like to mark their space. Are you sitting now in your home or on a train Have you marked the space around yourself as your If you are on the train you may put your coat or small bag on the seat beside you. If you share a flat you may have one corner or chair which is your own.

Once I was travelling on a train to London. I was in a section for four people and there was a table between us. The man opposite to me had his briefcase on the table. There was no space on my side of the table at all. I was angry. Maybe he thought that he owned the whole table. I had read a book about non-verbal communication, so I took various papers out of my bag and put them on his briefcase! When I did this he suddenly became angry and his eyes nearly popped out (突出) of his head. I had invaded (侵犯) his space! A few minutes later I took my papers off his case in order to read them. He immediately moved his case to his side of the table. Of course, it is possible that he just wanted to be helpful to me!

If you are visiting another country you may feel that you don’t have any private space. Hotel rooms look much the same in every country in the world. All day long, you share public spaces with other people. You see the local people in their private spaces and you feel lonely and "outside". Local people can create their private spaces by talking about things you don’t know about. And you even feel that they like you to be outside them so that they will enjoy being inside even more! This is one of the difficulties of being a traveler! But if you understand it then it helps you. Haven’t you enjoyed being part of a group and "owning" a bit of space

The main purpose of the passage is to tell readers to（）

A．own private spaces by living in houses

B．have one corner of their own in public places

C．realize the importance of "space" in communication

D．create their private spaces by talking with local people
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