商慕夏:谁能帮我查查高中英语阅读有关科学技术方面的！谢谢了！

介绍两个美国高中网站.一个是芝加哥高中图书馆科学资料库.
另一个是全美高中探讨中心.它对全世界的学生开放.鼓励所有学生参加科学比赛.获奖者,可得奖学金等奖励.
希望对你有帮助.
http://dewey.chs.chico.k12.ca.us/sci.html
http://www.youth.net/nsrc/webs.html

Telescope

LIGHT and other kinds of electromagnetic (电磁) radiation coming from the universe outside the earth must travel enormous distances through space and time to reach observers. Only the brightest and nearest stars can be seen with the unaided eye. To see farther, a telescope is needed.
The word telescope is derived from the Greek words tele, "from afar", and skopos, "viewer" .
Even a simple homemade telescope can clearly show Saturn's (土星) rings, Jupiter's (木星) bands and red spot (大红斑), stars, nebulae (星云), and nearby galaxies.
The ability to study the distant planets and other structures in the universe with these powerful yet remarkably simple instruments has revolutionized mankind's understanding of the natural world.
All telescopes gather radiation from distant objects over a large area and focus it, thereby increasing the intensity of the radiation and allowing the objects to be magnified (放大).
Sophisticated telescopes are used to view radiation in all parts of the electromagnetic spectrum (电磁波谱) from long-wave radiation to infrared (红外线) radiation and light and much shorter wave radiation, including ultraviolet (紫外线) and X rays.
This radiation travels through space at the speed of light in the form of waves of electric and magnetic fields. Because of its basic similarity, all such radiation can be focused by reflecting it off a curved surface or by refracting, or bending, it with glass lenses (镜头). The devices that are used to do this, however, vary, depending on the wavelength or type of radiation being studied.
Optical telescope
The first telescope developed, and the one most widely used, is the optical telescope.
The light-gathering power of a telescope is determined by the diameter of its objective mirror or lens. This light-gathering power determines how faint an object the telescope can observe.
Reflecting telescope
A typical reflecting telescope used by an amateur astronomer may have a primary mirror measuring 10 to 20 cm in diameter. Reflecting telescopes used by professional astronomers usually have mirrors that measure more than 152 cm in diameter. One of the largest is a 600 cm telescope in the Caucasus Mountains of Eastern Europe that began operating in 1976. (Part I)(SD-Agencies)

http://pdf.sznews.com/szdaily/2001/0620/sz04s.htm

这有不少，题目吗，随意出点即可，高中生好对付。

Telescope

LIGHT and other kinds of electromagnetic (电磁) radiation coming from the universe outside the earth must travel enormous distances through space and time to reach observers. Only the brightest and nearest stars can be seen with the unaided eye. To see farther, a telescope is needed.
The word telescope is derived from the Greek words tele, "from afar", and skopos, "viewer" .
Even a simple homemade telescope can clearly show Saturn's (土星) rings, Jupiter's (木星) bands and red spot (大红斑), stars, nebulae (星云), and nearby galaxies.
The ability to study the distant planets and other structures in the universe with these powerful yet remarkably simple instruments has revolutionized mankind's understanding of the natural world.
All telescopes gather radiation from distant objects over a large area and focus it, thereby increasing the intensity of the radiation and allowing the objects to be magnified (放大).
Sophisticated telescopes are used to view radiation in all parts of the electromagnetic spectrum (电磁波谱) from long-wave radiation to infrared (红外线) radiation and light and much shorter wave radiation, including ultraviolet (紫外线) and X rays.
This radiation travels through space at the speed of light in the form of waves of electric and magnetic fields. Because of its basic similarity, all such radiation can be focused by reflecting it off a curved surface or by refracting, or bending, it with glass lenses (镜头). The devices that are used to do this, however, vary, depending on the wavelength or type of radiation being studied.
Optical telescope
The first telescope developed, and the one most widely used, is the optical telescope.
The light-gathering power of a telescope is determined by the diameter of its objective mirror or lens. This light-gathering power determines how faint an object the telescope can observe.
Reflecting telescope
A typical reflecting telescope used by an amateur astronomer may have a primary mirror measuring 10 to 20 cm in diameter. Reflecting telescopes used by professional astronomers usually have mirrors that measure more than 152 cm in diameter. One of the largest is a 600 cm telescope in the Caucasus Mountains of Eastern Europe that began operating in 1976. (Part I)(SD-Agencies)

Websites

African studies
http://www.AfricaOnline.com/AfricaOnline/kidsonly/
Target age range: 6-12 : 13-17
Kids resource page about the people and cultures of Africa. This page chronicles (记述) the daily lives of African communities, with reference materials about geography, cultural exchanges, and educational resources.

http://www.sas.upenn.edu/African_Studies/AS.html Target age range: 13-17 : 18 and over
Internet resources about the continent of Africa. This site has numerous links to educational resources about African culture and history for all ages.

http://www.sas.upenn.edu/African_Studies/Country_Specific/Angola.html
Target age range: 13-17 : 18 and over
Internet directory of resources about Angola. This site has information about the people and culture of this nation, and links to other Internet sites, as well as basic geographical, government, and history information.(Part I)(SD-Agencies)

I understand but I don't have any...
I want someone give me some knowledge about it too.I'm a student like you ...
What shall we do?

www.dsaffst.com.cn

书店里有，自己找一下吧。