理工類單選集考試卷模擬考試_題_13

1、姓名：_ 班級(jí)：_ 學(xué)號(hào)：_-密-封 -線- 理工類單選集考試卷模擬考試_題考試時(shí)間：120分鐘 考試總分：100分題號(hào)一二三四五總分分?jǐn)?shù)遵守考場(chǎng)紀(jì)律，維護(hù)知識(shí)尊嚴(yán)，杜絕違紀(jì)行為，確?？荚嚱Y(jié)果公正。1、so many earthsthe milky way (銀河) contains billions of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.

2、a mechanical failure recently put that kepler space telescope out of service. kepler had played a big role in creating a census of planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that

3、might have conditions similar to those on earth.the authors of a study, published in the proceedings of the national academy of sciences, conclude that between 14 and 30 out of every 100 stars, with a mass and temperature similar to the sun, may host a planet that could support life as we know it. s

4、uch a planet would have a diameter at least as large as earths, but no more than twice that big . the planet also would have to orbit in a stars habitable zone. thats where the surface temperature would allow any water to exist as a liquid.the new estimate of how many planets might fit these conditi

5、ons comes from studying more than 42, 000 stars and identifying suitable worlds orbiting them. the scientists used those numbers to extrapolate (推算) to the rest of the stars that the telescope could not see .the estimate is rough, the authors admit. if applied to the solar system, it would define as

6、 habitable a zone starting as close to the sun as venus and running to as far away as mars. neither planet is earthlike (although either might have been in the distant past). using tighter limits, the researchers estimate that between 4 and 8 out of every 100 sunlike stars could host an earth-sized

7、world. these are ones that would take 200 to 400 days to complete a yearly orbit.four out of every 100 sunlike stars doesnt sound like a big number. it would mean, however, that the milky way could host more than a billion earth-sized planets with a change for life.the kepler space telescope has bee

8、n in service for 15 years.（ ）a.rightb.wrongc.not mentioned2、so many earthsthe milky way (銀河) contains billions of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.a mechanical failure recently put that ke

9、pler space telescope out of service. kepler had played a big role in creating a census of planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that might have conditions similar to those on

10、 earth.the authors of a study, published in the proceedings of the national academy of sciences, conclude that between 14 and 30 out of every 100 stars, with a mass and temperature similar to the sun, may host a planet that could support life as we know it. such a planet would have a diameter at lea

11、st as large as earths, but no more than twice that big . the planet also would have to orbit in a stars habitable zone. thats where the surface temperature would allow any water to exist as a liquid.the new estimate of how many planets might fit these conditions comes from studying more than 42, 000

12、 stars and identifying suitable worlds orbiting them. the scientists used those numbers to extrapolate (推算) to the rest of the stars that the telescope could not see .the estimate is rough, the authors admit. if applied to the solar system, it would define as habitable a zone starting as close to th

13、e sun as venus and running to as far away as mars. neither planet is earthlike (although either might have been in the distant past). using tighter limits, the researchers estimate that between 4 and 8 out of every 100 sunlike stars could host an earth-sized world. these are ones that would take 200

14、 to 400 days to complete a yearly orbit.four out of every 100 sunlike stars doesnt sound like a big number. it would mean, however, that the milky way could host more than a billion earth-sized planets with a change for life.the main task of the kepler space telescope is to find out planets with sim

15、ilar conditions to earths.（ ）a.rightb.wrongc.not mentioned3、so many earthsthe milky way (銀河) contains billions of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.a mechanical failure recently put that ke

16、pler space telescope out of service. kepler had played a big role in creating a census of planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that might have conditions similar to those on

17、 earth.the authors of a study, published in the proceedings of the national academy of sciences, conclude that between 14 and 30 out of every 100 stars, with a mass and temperature similar to the sun, may host a planet that could support life as we know it. such a planet would have a diameter at lea

18、st as large as earths, but no more than twice that big . the planet also would have to orbit in a stars habitable zone. thats where the surface temperature would allow any water to exist as a liquid.the new estimate of how many planets might fit these conditions comes from studying more than 42, 000

19、 stars and identifying suitable worlds orbiting them. the scientists used those numbers to extrapolate (推算) to the rest of the stars that the telescope could not see .the estimate is rough, the authors admit. if applied to the solar system, it would define as habitable a zone starting as close to th

20、e sun as venus and running to as far away as mars. neither planet is earthlike (although either might have been in the distant past). using tighter limits, the researchers estimate that between 4 and 8 out of every 100 sunlike stars could host an earth-sized world. these are ones that would take 200

21、 to 400 days to complete a yearly orbit.four out of every 100 sunlike stars doesnt sound like a big number. it would mean, however, that the milky way could host more than a billion earth-sized planets with a change for life.the planet that could support life might be a little bit smaller than earth

22、. （ ）a.rightb.wrongc.not mentioned4、so many earthsthe milky way (銀河) contains billions of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.a mechanical failure recently put that kepler space telescope out

23、 of service. kepler had played a big role in creating a census of planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that might have conditions similar to those on earth.the authors of a

24、study, published in the proceedings of the national academy of sciences, conclude that between 14 and 30 out of every 100 stars, with a mass and temperature similar to the sun, may host a planet that could support life as we know it. such a planet would have a diameter at least as large as earths, b

25、ut no more than twice that big . the planet also would have to orbit in a stars habitable zone. thats where the surface temperature would allow any water to exist as a liquid.the new estimate of how many planets might fit these conditions comes from studying more than 42, 000 stars and identifying s

26、uitable worlds orbiting them. the scientists used those numbers to extrapolate (推算) to the rest of the stars that the telescope could not see .the estimate is rough, the authors admit. if applied to the solar system, it would define as habitable a zone starting as close to the sun as venus and runni

27、ng to as far away as mars. neither planet is earthlike (although either might have been in the distant past). using tighter limits, the researchers estimate that between 4 and 8 out of every 100 sunlike stars could host an earth-sized world. these are ones that would take 200 to 400 days to complete

28、 a yearly orbit.four out of every 100 sunlike stars doesnt sound like a big number. it would mean, however, that the milky way could host more than a billion earth-sized planets with a change for life.the earth is planet orbiting in the suns habitable zone.（ ）a.rightb.wrongc.not mentioned5、so many e

29、arthsthe milky way (銀河) contains billions of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.a mechanical failure recently put that kepler space telescope out of service. kepler had played a big role in

30、creating a census of planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that might have conditions similar to those on earth.the authors of a study, published in the proceedings of the na

31、tional academy of sciences, conclude that between 14 and 30 out of every 100 stars, with a mass and temperature similar to the sun, may host a planet that could support life as we know it. such a planet would have a diameter at least as large as earths, but no more than twice that big . the planet a

32、lso would have to orbit in a stars habitable zone. thats where the surface temperature would allow any water to exist as a liquid.the new estimate of how many planets might fit these conditions comes from studying more than 42, 000 stars and identifying suitable worlds orbiting them. the scientists

33、used those numbers to extrapolate (推算) to the rest of the stars that the telescope could not see .the estimate is rough, the authors admit. if applied to the solar system, it would define as habitable a zone starting as close to the sun as venus and running to as far away as mars. neither planet is

34、earthlike (although either might have been in the distant past). using tighter limits, the researchers estimate that between 4 and 8 out of every 100 sunlike stars could host an earth-sized world. these are ones that would take 200 to 400 days to complete a yearly orbit.four out of every 100 sunlike

35、 stars doesnt sound like a big number. it would mean, however, that the milky way could host more than a billion earth-sized planets with a change for life.the new finding is based on a thorough study of 170, 000 stars in the milky way.（ ）a.rightb.wrongc.not mentioned6、so many earthsthe milky way (銀

36、河) contains billions of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.a mechanical failure recently put that kepler space telescope out of service. kepler had played a big role in creating a census of

37、planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that might have conditions similar to those on earth.the authors of a study, published in the proceedings of the national academy of sci

38、ences, conclude that between 14 and 30 out of every 100 stars, with a mass and temperature similar to the sun, may host a planet that could support life as we know it. such a planet would have a diameter at least as large as earths, but no more than twice that big . the planet also would have to orb

39、it in a stars habitable zone. thats where the surface temperature would allow any water to exist as a liquid.the new estimate of how many planets might fit these conditions comes from studying more than 42, 000 stars and identifying suitable worlds orbiting them. the scientists used those numbers to

40、 extrapolate (推算) to the rest of the stars that the telescope could not see .the estimate is rough, the authors admit. if applied to the solar system, it would define as habitable a zone starting as close to the sun as venus and running to as far away as mars. neither planet is earthlike (although e

41、ither might have been in the distant past). using tighter limits, the researchers estimate that between 4 and 8 out of every 100 sunlike stars could host an earth-sized world. these are ones that would take 200 to 400 days to complete a yearly orbit.four out of every 100 sunlike stars doesnt sound l

42、ike a big number. it would mean, however, that the milky way could host more than a billion earth-sized planets with a change for life.the estimate of the number of planets that could support life is not very accurate.（ ）a.rightb.wrongc.not mentioned7、so many earthsthe milky way (銀河) contains billio

43、ns of earth-sized planets that could support life thats the finding of a new study. it draws on date that came from nasas top planet-hunting telescope.a mechanical failure recently put that kepler space telescope out of service. kepler had played a big role in creating a census of planets orbiting some 170, 000 stars. its data have been helping astronomers predict how common planets are in our galaxy. the telescope focused on hunting planets that might have conditions similar to those on earth.the authors of a study, published in the proceedings of the national academy