17.A group of college students is hoping to place a satellite powered only by water into an orbit  aroud  the moon.
The  students are from Cornell University in the state of New York.They are takking part in a compete  team is called the CisLunar Explorers.The word cislunar means"between Eatrth and the-moon".
The challenge is simple:to design,build and deliver
"flight-qualified,small satellites".NASA official  say the satellites must be able to perform"advanced operations near and beyond the moon".
Ten teams are  taking part in the competition.But the  CisLunar Kxplorer satellites are the only ones using water to power their spaceceraft.The idea for a water-powered vehicle came from Mason Peck,who works at Cornell  University.He has always wanted to use something other than rockets to push beyond earth.
The  craft  is two connected  satellites,both  shaped  like the English latter"I".Water is storel in the lower   part of the satellite.The sun will separate the water into two  elements:bydrogen  and  oxy-gen.When  one combines  hydrogen and oxygen with a spark (火花)an explosion results.This pro-vides a forward  movement,known as thrust.
Another cool thing about the CixLunar Explorer is how the team is teaching it to navigate its way through spare.The  idea in to ropy how old-lime sailors used the moon,sun  and stars to fix their posi-tion on the oceans.The satellite is equipped with cameras.The  cameras  will takepictures of their sun,Earth and the moon and compare their positions  and   theirsize.Based   on wherethe  sun,moon and Earth are at any given time,the Cislunar Explorers will do the matheroatics to find their position.

33.What do the Cornell students plan to do?D
A.Place an earth satellite into orbit.
B.Meet the challenge of joining NASA.
C.Explore space  by means of satellites.
D.Send up a water-powered moon salellite.
34.What can we learn about the CisLunar  Explorer satellites?A
A.Theyare unusual.
B.They areordinary.
C.Theyare simple.
D.They areexpensive.
35.How do the CisLunar  Explorer find inspiration for guiding their spacecraft?C
A.By Inking space pictures.
B.By doingcomputingtasks.
C.From  the ancient sailors.
D.From theposition ofthem oceans.

分析 本文介紹了在一個(gè)科技競賽中,一組大學(xué)生嘗試能能將一顆僅由水驅(qū)動的衛(wèi)星送入月球軌道.

解答 33.D.細(xì)節(jié)理解題.由第一段A group of college students is hoping to place a satellite powered only by water into an orbit  aroud  the moon可知一組大學(xué)生希望能將一顆僅由水驅(qū)動的衛(wèi)星送入月球軌道,故選D.
34.A.理解推斷題.由第三段Ten teams are  taking part in the competition.But the  CisLunar Kxplorer satellites are the only ones using water to power their spaceceraft可知,共有十個(gè)團(tuán)隊(duì)參加比賽,但他們的衛(wèi)星是唯一使用水力作為動力的,因此很特別,故選A.
35.C.理解推斷題.由最后一段The  idea in to ropy how old-lime sailors used the moon,sun  and stars to fix their posi-tion on the oceans可知,他們的想法來自古時(shí)的水手,故選C.

點(diǎn)評 本篇閱讀難度比一般閱讀較大,它存在的生詞比較多,因此考生應(yīng)當(dāng)綜合略讀、跳讀和查讀,猜詞等閱讀技巧來做題,平時(shí)也應(yīng)加強(qiáng)練習(xí).

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