8.A telescope (望遠鏡),called Gaia,is being designed by astronomers in Europe,and it couldn't be more different from Pan-STARRS,which is another telescope being designed.While Pan-STARRS will be looking for asteroids (小行星) and comets headed for Earth,Gaia will be looking at our entire galaxy (銀河系).
Gaia is designed to draw a map of the Milky Way,our home galaxy.Just as a map of your town gives you a picture of where things are located,Gaia's map of the galaxy will tell astronomers where the stars are.Over five years,Gaia will observe (觀察) about a billion stars and other objects in our galaxy.Each object will be observed about 70times.
Gaia will be sent into space connected to a rocket.It contains two telescopes,each focused at a different angle (角度).These two telescopes act like Gaia's"eyes".The reason why humans can see things in 3D is that we have two eyes focused on the same object,at slightly different angles.By using two telescopes like eyes,Gaia can produce the first 3D map of the positions of the stars it views.
Gaia,which is to be sent into space in 2011,will be a powerful telescope.If you were to use it on Earth,for example,you could stand 600miles away from your best friends and still get a clear picture of their hair.
Gaia is one of more than a dozen telescopes being designed by scientists right now.The next generation of telescopes will reveal new parts of our universe that will seem surprising. The universe,with all its planets,stars and other strange objects,is a puzzle with pieces that we can see by using powerful telescopes.
32.How many different angles can Gaia focus at each time?A
A.2.
B.3.
C.4.
D.5.
33.The map to be drawn by GaiaD.
A.can show every building on Earth
B.can show you where your town is
C.will just show the stars around Earth
D.will show where the stars are in our home galaxy
34.What's Paragraph 4mainly about?C
A.What Gaia will do in space.
B.When Gaia will start to work.
C.How powerful Gaia will be.
D.What Gaia will do to Earth.
35.The underlined sentence in the last paragraph suggests that the next generation of telescopesD.
A.seem very surprising to scientists
B.will not be put into use in a short time
C.will just look at new things in universe
D.will be more powerful than the old generations.
分析 本文是一篇科教類閱讀,屬于說明文,本文主要介紹了威力強大的望遠鏡Gaia,并告訴人們新一代望遠鏡將比舊的更加強大.
解答 32.A.細節(jié)理解題.根據第三段前兩句Gaia will be sent into space connected to a rocket.It contains two telescopes,each focused at a different angle (角度).可知,Gaia連接著火箭將被送上太空.它包括兩個望遠鏡,每次都集中在在不同的角度.故選A.
33.D.細節(jié)理解題.根據第二段第二句Just as a map of your town gives you a picture of where things are located,Gaia's map of the galaxy will tell astronomers where the stars are.可知,由Gaia繪制的銀河系的地圖將告訴天文學家星星在哪里.故選D.
34.C.段落大意題.根據第四段第一句Gaia,which is to be sent into space in 2011,will be a powerful telescope.可知,Gaia將是一個強大的望遠鏡.故選C.
35.D.推理判斷題.根據第五段倒數第二句The next generation of telescopes will reveal new parts of our universe that will seem surprising.可知,下一代的望遠鏡將顯示出宇宙中似乎令人驚訝的新景象.可知新一代將比舊的更強的.故選D.
點評 本文是一篇科教類閱讀,題目涉及多道細節(jié)理解題,推理判斷題,段落大意題.做題時學生應仔細閱讀原文,把握文章主要內容,聯系文章上下文內容并結合所給選項含義,從中選出正確答案,一定要做到有理有據,切忌胡亂猜測.