问题 阅读理解与欣赏

阅读《巡天遥看一千河》的文字,完成1~4题。

  “坐地日行八万里,巡天遥看一千河”,毛 * * 的浪漫诗句则是有现代科学背景的。因为人人都在随着地球“日行八万里”——地球的地壳表面周长约4万千米,也就是8万里,地球自转一圈就是一天。但是,“日行八万里”是被动的,“行”也得行,“不行”也得行,而“巡天遥看一千河”就可以从主动与被动两个方面去解释了:人自然可以在被动地“日行八万里”时仰天观看天上的银河,更可以主动地在宇宙飞船上俯看地球上的“一千河”。诗人抒情式的想象是恢弘的。

1.找出反义词。

_______________________________________

2.本段运用的说明方法是______________、______________。

3.画线句的含意是什么?

_______________________________________________

4.本文意在介绍遥感技术,为什么第2段开头要介绍毛 * * 的诗呢?有没有偏离题意呢?

_______________________________________________ 

答案

1.参考答案:地——天 被动——主动仰——俯

2.引用 列数字

3.人随着地球自转观看银河,也可以在宇宙飞船上俯看地球上的“一千河”。

4.以诗句导入,增强了文章趣味性,自然地引出下文知识的介绍,毛 * * 的诗句还照应了题目。因而没有偏离题意。(意对即可)

选择题
单项选择题

Electronic mail has become an extremely important and popular means of communication.

The convenience and efficiency of electronic mail are threatened by the extremely rapid growth in the volume of unsolicited commercial electronic mail. Unsolicited commercial electronic mail is currently estimated to account for over half of all electronic mall traffic, up from an estimated 7 percent in 2001, and the volume continues to rise. Most of these messages are fraudulent or deceptive in one or more respects.

The receipt of unsolicited commercial electronic mail may result in costs to recipients who cannot refuse to accept such mail and who incur costs for the storage of such mail, or for the time spent accessing, reviewing, and discarding such mail, or for both. The receipt of a large number of unwanted messages also decreases the convenience of electronic mall and creates a risk that wanted electronic mail messages, both commercial and noncommercial, will be lost, overlooked, or discarded amidst the larger volume of unwanted messages, thus reducing the reliability and usefulness of electronic mail to the recipient. Some commercial electronic mail contains material that many recipients may consider vulgar or pornographic in nature.

The growth in unsolicited commercial electronic mail imposes significant monetary costs on providers of Internet access services, businesses, and educational and nonprofit institutions that carry and receive such mail, as there is a finite volume of mail that such providers, businesses, and institutions can handle without further investment in infrastructure. Many senders of unsolicited commercial electronic mail purposefully disguise the source of such mall.

Many senders of unsolicited commercial electronic mall purposefully include misleading information in the messages’ subject lines in order to induce the recipients to view the messages. While some senders of commercial electronic mail messages provide simple and reliable ways for recipients to reject (or ’opt-out’ of) receipt of commercial electronic mall from such senders in the future, other senders provide no such ’opt-out’ mechanism, or refuse to honor the requests of recipients not to receive electronic mail from such senders in the future, or both.

Many senders of bulk unsolicited commercial electronic mail use computer programs to gather large numbers of electronic mail addresses on an automated basis from Internet websites or online services where users must post their addresses in order to make full use of the website or service.

The problems associated with the rapid growth and abuse of unsolicited commercial electronic mall cannot be solved by the government alone. The development and adoption of techno-logical approaches and the pursuit of cooperative efforts with other countries will be necessary as well.

Which of the following is NOT true about unwanted e-mail().

A. It costs money to receive them.

B. It’s free to store them.

C. It takes time to access them.

D. It takes time to throw them away.