题目列表(包括答案和解析)
6.____________(总共,完全地) there were 29 people in the bus.
答案:Altogether
5.His only means of ___________(身份证明) was his passport.
答案:identification
4.Education should not be considered to be a___________ (特权) in a modern society.
答案:privilege
3.I have no ___________(食欲) now because of the bad cold.
答案:appetite
2.The principal’s __________ (出现) at the party didn’t seem to be very welcome.
答案:appearance
1.Yesterday he received a __________ (报酬) of $800 for catching the criminal.
答案:reward
For hundreds of years humans have dreamt of finding life on distant planets.Now the hope of discovering real evidence of life has greatly 1 .
NASA’s Mars detector (火星探测器),Opportunity,succeeded in finding 2 that water 3 existed on the planet.Opportunity landed on Mars in January.Scientists now believe that the planet could once have supported 4 .
This discovery was 5 by Science,one of the worlds 6 magazines,as the most important scientific achievement of 504 last Friday.
“This little,wheeled,one-armed box went around another 7 and has done something 8 human has ever managed,” according to Science.“It has discovered another place in the universe where life 9 once have existed.”
“ 10 we still can’t say that life could have existed in this environment,it is now 11 that there was water on Mars,” said Steve Squyres,one of the scientists 12 the Mars mission (任务).The evidence comes from pictures and chemical readings taken by Opportunity.It 13 marks on rocks like those caused by flowing water on Earth and salty chemicals like those 14 in dried-out sea-beds.Scientists said the new evidence 15 beyond doubt that water has existed on Mars.
But it is still unknown 16 the water on Mars was like an ocean or just ice.
While Opportunity has not found any signs of life,the 17 of water means life is possible.”In everything we know about life on Earth,there is no 18 without liquid water,”Squyres said “So water is important for the search for life on Mars.”
Researchers agree that a future mission should bring back physical samples (样品).But some scientists worry about the risk that this could 19 dangerous foreign creatures to Earth.
“The 20 here is how to get the samples back,” Squyres replied.“I think it is our responsibility to limit any risk.”
1.A.decreased B.reproduced C.disappeared D.increased
答案:D
提示:从后面的内容可知,人们对发现的生命“印痕”越多,希望就增长。
2.A.signs B.signals C.marks D.symbols
答案:A
提示:火星探测器寻找水存在的痕迹。
3.A.never B.hardly C.once D.now
答案:C
提示:从前一句“succeed”可以推知“曾经”有水存在。
4.A.water B.air C.science D.life
答案:D
提示:根据文章第一段的第一句可知。
5.A.defined B.absorbed C.benefited D.chosen
答案:D
6.A.trusting B.leading C.sensitive D.varied
答案:B
提示:根据常识和前后语境可知这本杂志非常重要。
7.A.ocean B.solid C.substance D.planet
答案:D
8.A.only B.few C.no D.hardly
答案:C
提示:这台机器做了人类从没做成的一些事。
9.A.should B.must C.would D.could
答案:D
提示:could表示可能性的推测。
10.A.Since B.Thus C.Although D.Unless
答案:C
提示:根据前后意思,此处缺少一个引导让步状语从句的连词。
11.A.likely B.impossible C.certain D.positive
答案:C
提示:It’s certain that指……
12.A.working on B.working out tributing to D.devoting to
答案:A
13.A.ranges B.includes C.defines tains
答案:B
提示:include指“包括”,contains指“容器包容”。
14.A.found B.frozen C.floated D.dissolved
答案:A
提示:被发现的那些物体。
15.A.trusted B.discovered C.proved D.reminded
答案:C
提示:新的证据“证明了火星上曾有水存在”。
16.A.that B.whether C.why D.when
答案:B
提示:whether...or...引导出一个主语从句。
17.A.absence B.presence C.density D.salinity
答案:B
提示:presence指“存在”。
18.A.example B.property C.motion D.variety
答案:A
19.A.destroy B.introduce C.invite D.attract
答案:B
提示:有可能会把外星上的危险生物引到地球上来。
20.A.doubt B.response C.reply D.problem
答案:D
提示:从后面“risk”可知前面应为难题。
15.-What do you think of the restaurant?
-Wonderful.You couldn’t have found_______.
A.a good one B.a better one C.a best one D.the best
答案:B
提示:和对方提到的那家餐馆相比较,不可能再找到更好的了,此处比较级表最高级含义。
14.I think you’re got to the point_______a change is needed,otherwise you’ll fail.
A.when B.that C.where D.which
答案:C
提示:where在此处引导定语从句。
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