早教吧作业答案频道 -->英语-->
What'stheredstarintheskythroughatelescope(望远镜)?ItisMars.Doyouwanttoknowmoreaboutit?Takethe"MarsOrbitExpress"!"MarsOrbitExpress"isaspaceprobe(探测器).ItwassenttowardsMarsbyA
题目详情
What's the red star in the sky through a telescope(望远镜)?It is Mars.Do you want to know more about it?Take the"Mars Orbit Express"!
"Mars Orbit Express"is a space probe (探测器).It was sent towards Mars by American scientists on August 12th,2005.Its tasks are to study Mars'atmosphere and return photos to Earth.But before that"Mars Orbit Express"must travel about 100hundred million kilometers and seven months.It reached Mars'orbit(轨道)in March,2006.
Mars and Earth have similar weight and size.However,Mars is closer to the sun than Earth.Mars is very cold.The average temperature is below 50℃.The temperature at noon only reaches 20℃during a Mars day.Its atmosphere is mostly CO2.It has much sand and two moons---Phobos and Deimos.
Scientists think Earth and Mars had similar beginnings 4.6billion years ago.But while Earth supports millions of lives,Mars becomes bad."Earth easily could have turned out like that."said an scientist,"It is important for us to find out why and Mars Orbit Express'should do that.""Mars Orbit Express"also would help scientists to learn what might happen to Earth in the future."Mars Orbit Express"would work for about four years.
38.What can you see through a telescope when watching Mars?___.
A.Much sand B.A red star C.Its atmosphere D.Its size
39.One of the tasks of Mars Orbit Express is___.
A.taking pictures of Mars
B.studying the weight of Mars
C.finding out distance between Earth and Mars
D.telling the time it takes to go from Earth to Mars
40.Compared with Earth,___.
A.Mars has a long history B.Mars is big and heavy
C.Mars is close to the sun D.Mars'atmosphere is mainly O2.
41.Which might be the proper title for the passage?___
A.Mars:differences from Earth B.A probe:to learn more about Mars
C.Mars:change of temperature D.A probe:to tell the future of Earth.
"Mars Orbit Express"is a space probe (探测器).It was sent towards Mars by American scientists on August 12th,2005.Its tasks are to study Mars'atmosphere and return photos to Earth.But before that"Mars Orbit Express"must travel about 100hundred million kilometers and seven months.It reached Mars'orbit(轨道)in March,2006.
Mars and Earth have similar weight and size.However,Mars is closer to the sun than Earth.Mars is very cold.The average temperature is below 50℃.The temperature at noon only reaches 20℃during a Mars day.Its atmosphere is mostly CO2.It has much sand and two moons---Phobos and Deimos.
Scientists think Earth and Mars had similar beginnings 4.6billion years ago.But while Earth supports millions of lives,Mars becomes bad."Earth easily could have turned out like that."said an scientist,"It is important for us to find out why and Mars Orbit Express'should do that.""Mars Orbit Express"also would help scientists to learn what might happen to Earth in the future."Mars Orbit Express"would work for about four years.
38.What can you see through a telescope when watching Mars?___.
A.Much sand B.A red star C.Its atmosphere D.Its size
39.One of the tasks of Mars Orbit Express is___.
A.taking pictures of Mars
B.studying the weight of Mars
C.finding out distance between Earth and Mars
D.telling the time it takes to go from Earth to Mars
40.Compared with Earth,___.
A.Mars has a long history B.Mars is big and heavy
C.Mars is close to the sun D.Mars'atmosphere is mainly O2.
41.Which might be the proper title for the passage?___
A.Mars:differences from Earth B.A probe:to learn more about Mars
C.Mars:change of temperature D.A probe:to tell the future of Earth.
▼优质解答
答案和解析
38.答案:B.细节理解题.根据第一段What's the red star in the sky through a telescope(望远镜)?It is Mars.通过望远镜看到天空中的红色星星是什么?它是火星.可知,通过望远镜看火星,它是一个红色的星星,选B.
39.答案:A.细节理解题.根据第二段第一行Its tasks are to study Mars'atmosphere and return photos to Earth.它的任务是研究火星大气层并把照片返回到地球.可知,火星快车轨道的任务之一是拍摄火星照片.选A.
40.答案:C.细节理解题.根据第三段However,Mars is closer to the sun than Earth然而,火星比地球更接近太阳,可知,与地球相比,火星更接近太阳,选C.
41.答案:B.标题猜测题.根据第一段It is Mars.Do you want to know more about it?它是火星,你想知道关于它的更多信息吗?可知,短文主要介绍通过发送探测器更多的了解火星.可知,题目应该是"探索:更多了解火星",选B.
39.答案:A.细节理解题.根据第二段第一行Its tasks are to study Mars'atmosphere and return photos to Earth.它的任务是研究火星大气层并把照片返回到地球.可知,火星快车轨道的任务之一是拍摄火星照片.选A.
40.答案:C.细节理解题.根据第三段However,Mars is closer to the sun than Earth然而,火星比地球更接近太阳,可知,与地球相比,火星更接近太阳,选C.
41.答案:B.标题猜测题.根据第一段It is Mars.Do you want to know more about it?它是火星,你想知道关于它的更多信息吗?可知,短文主要介绍通过发送探测器更多的了解火星.可知,题目应该是"探索:更多了解火星",选B.
看了 What'stheredst...的网友还看了以下:
已知∠AOB,∠A'O'B',且AO//A'O',BO//B'O',猜想∠AOB与∠A'O'B'有怎 2020-03-31 …
在共点O三条不共面直线a,b,c上,在点O两侧分别取点A和A',B和B',C和C',且AO=A'O 2020-05-13 …
关系R(A,B)和S(B,C)中分别有10个和15个元组,属性B是R的主码,则中元组数目的范围是A. 2020-05-24 …
SELECT (52)A.A,R.C,F,GB.A,C,S.B,S.FC.A,C,S.B,S.CD. 2020-05-26 …
(18)A.A, R.C, F, GB.A, C,S.B, S.FC.A, C, S.B,S.CD. 2020-05-26 …
.已知:Kps(ZnS)=1.2×10-23,Ksp(MnS)=1.4×10-15则()A.ϕo( 2020-06-11 …
选择元音字母在单词中发音不同的一项.1;A:h(a)nd;B:f(a)ce;C:(a)pple.2 2020-06-17 …
排列成正确的句子:me,I,go,excuse,haveto.排列成正确的单词:1.c,d,e,s, 2020-11-01 …
设n阶方阵A,B满足AB=O,其中O为零矩阵,则必有A.A=O或B=OB.︳A︳=0或︳B︳=0C. 2020-11-02 …
下列四种算法的时间复杂度中,执行时间最短.A.O(n)B.O(log2n)C.O(2n)D.O(n2 2020-12-15 …