理工类单选集_考试卷模拟考试题_5

1、姓名：_ 班级：_ 学号：_-密-封 -线- 理工类单选集_考试卷模拟考试题考试时间：120分钟 考试总分：100分题号一二三四五总分分数遵守考场纪律，维护知识尊严，杜绝违纪行为，确保考试结果公正。1、*html*?下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。b第一篇/bb? ? ? ? ? ? ? ? ? ? ? eta carinae/b? ?as possiblythe galaxys (银河) most massive star, eta carinae is now engaging in some veryun

2、usual behaviour. australian astronomers, being in the southern hemisphere(半球), are able to observe it clearly.? ?in the 19th century, etacarinae was for a time the third brightest star in the sky. it has now becomeless bright so that binoculars (双筒望远镜) are needed to see it. “it seems to bebrightenin

3、g and becoming less bright over a period of many years”, said dr bobduncan from the australia telescope national facility.? ?while itis not unusual for stars to vary in brightness, the period is usually muchshorter. “since 1992 it has become four times brighter, and then last year itbegan to drop dr

4、amatically,” he said.? ?the problem in observingeta carinae is that it has been surrounded by a cloud of gas and dust, making ithard to see the star directly. however, radio waves and infrared light (红外线) canpass through this cloud, so telescopes that receive these wavelengths canobserve what is occ

5、urring.? ?eta carinae is of particular interestto astronomers because it seems to be in its death throes (剧痛). being so largeit will end up as a supernova (超新星). there has not been a supernova in ourgalaxy since the invention of the telescope. while a 1987 explosion in a nearbygalaxy gave astronomer

6、s plenty of valuable data, they are hungry for an evencloser look.? ?eta carinae has other unique features, and is theonly star known to produce an ultraviolet (紫外线) laser that is brighter than thatproduced by the sun. lasers have been observed in other frequencies from a fewstars.eta carinae is now

7、 engaging in （ ）a.some very common behaviour.b.some very dull behaviour.c.some very frightening behaviour.d.some very strange behaviour.2、*html*?下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。b第一篇/bb? ? ? ? ? ? ? ? ? ? ? eta carinae/b? ?as possiblythe galaxys (银河) most massive star, eta c

8、arinae is now engaging in some veryunusual behaviour. australian astronomers, being in the southern hemisphere(半球), are able to observe it clearly.? ?in the 19th century, etacarinae was for a time the third brightest star in the sky. it has now becomeless bright so that binoculars (双筒望远镜) are needed

9、 to see it. “it seems to bebrightening and becoming less bright over a period of many years”, said dr bobduncan from the australia telescope national facility.? ?while itis not unusual for stars to vary in brightness, the period is usually muchshorter. “since 1992 it has become four times brighter,

10、and then last year itbegan to drop dramatically,” he said.? ?the problem in observingeta carinae is that it has been surrounded by a cloud of gas and dust, making ithard to see the star directly. however, radio waves and infrared light (红外线) canpass through this cloud, so telescopes that receive the

11、se wavelengths canobserve what is occurring.? ?eta carinae is of particular interestto astronomers because it seems to be in its death throes (剧痛). being so largeit will end up as a supernova (超新星). there has not been a supernova in ourgalaxy since the invention of the telescope. while a 1987 explos

12、ion in a nearbygalaxy gave astronomers plenty of valuable data, they are hungry for an evencloser look.? ?eta carinae has other unique features, and is theonly star known to produce an ultraviolet (紫外线) laser that is brighter than thatproduced by the sun. lasers have been observed in other frequenci

13、es from a fewstars.the word “period” in paragraph 3 means the length of time （ ）a.over which stars vary in brightness.b.for which eta carinaes brightening lasts.c.eta carinae takes to become a supernova.d.it takes the laser from eta carinae to travel to the earth.3、*html*?下面有3篇短文，每篇短文后有5道题，每道题后面有4个选

14、项。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。b第一篇/bb? ? ? ? ? ? ? ? ? ? ? eta carinae/b? ?as possiblythe galaxys (银河) most massive star, eta carinae is now engaging in some veryunusual behaviour. australian astronomers, being in the southern hemisphere(半球), are able to observe it clearly.? ?in the 19th century, e

15、tacarinae was for a time the third brightest star in the sky. it has now becomeless bright so that binoculars (双筒望远镜) are needed to see it. “it seems to bebrightening and becoming less bright over a period of many years”, said dr bobduncan from the australia telescope national facility.? ?while itis

16、 not unusual for stars to vary in brightness, the period is usually muchshorter. “since 1992 it has become four times brighter, and then last year itbegan to drop dramatically,” he said.? ?the problem in observingeta carinae is that it has been surrounded by a cloud of gas and dust, making ithard to

17、 see the star directly. however, radio waves and infrared light (红外线) canpass through this cloud, so telescopes that receive these wavelengths canobserve what is occurring.? ?eta carinae is of particular interestto astronomers because it seems to be in its death throes (剧痛). being so largeit will en

18、d up as a supernova (超新星). there has not been a supernova in ourgalaxy since the invention of the telescope. while a 1987 explosion in a nearbygalaxy gave astronomers plenty of valuable data, they are hungry for an evencloser look.? ?eta carinae has other unique features, and is theonly star known t

19、o produce an ultraviolet (紫外线) laser that is brighter than thatproduced by the sun. lasers have been observed in other frequencies from a fewstars.eta carinae is hard to observe because （ ）a.it is too far away.b.there is too much dust and gas around it.c.the binoculars are not powerful enough.d.it d

20、oes not send out infrared light.4、*html*?下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。b第一篇/bb? ? ? ? ? ? ? ? ? ? ? eta carinae/b? ?as possiblythe galaxys (银河) most massive star, eta carinae is now engaging in some veryunusual behaviour. australian astronomers, being in the southern hemi

21、sphere(半球), are able to observe it clearly.? ?in the 19th century, etacarinae was for a time the third brightest star in the sky. it has now becomeless bright so that binoculars (双筒望远镜) are needed to see it. “it seems to bebrightening and becoming less bright over a period of many years”, said dr bo

22、bduncan from the australia telescope national facility.? ?while itis not unusual for stars to vary in brightness, the period is usually muchshorter. “since 1992 it has become four times brighter, and then last year itbegan to drop dramatically,” he said.? ?the problem in observingeta carinae is that

23、 it has been surrounded by a cloud of gas and dust, making ithard to see the star directly. however, radio waves and infrared light (红外线) canpass through this cloud, so telescopes that receive these wavelengths canobserve what is occurring.? ?eta carinae is of particular interestto astronomers becau

24、se it seems to be in its death throes (剧痛). being so largeit will end up as a supernova (超新星). there has not been a supernova in ourgalaxy since the invention of the telescope. while a 1987 explosion in a nearbygalaxy gave astronomers plenty of valuable data, they are hungry for an evencloser look.?

25、 ?eta carinae has other unique features, and is theonly star known to produce an ultraviolet (紫外线) laser that is brighter than thatproduced by the sun. lasers have been observed in other frequencies from a fewstars.astronomers are particularly interested in eta carinae because （ ）a.it is in its fina

26、l stage.b.it is a supernova.c.it exploded in 1987.d.it is brighter than the sun.5、*html*?下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。b第一篇/bb? ? ? ? ? ? ? ? ? ? ? eta carinae/b? ?as possiblythe galaxys (银河) most massive star, eta carinae is now engaging in some veryunusual behaviour. au

27、stralian astronomers, being in the southern hemisphere(半球), are able to observe it clearly.? ?in the 19th century, etacarinae was for a time the third brightest star in the sky. it has now becomeless bright so that binoculars (双筒望远镜) are needed to see it. “it seems to bebrightening and becoming less

28、 bright over a period of many years”, said dr bobduncan from the australia telescope national facility.? ?while itis not unusual for stars to vary in brightness, the period is usually muchshorter. “since 1992 it has become four times brighter, and then last year itbegan to drop dramatically,” he sai

29、d.? ?the problem in observingeta carinae is that it has been surrounded by a cloud of gas and dust, making ithard to see the star directly. however, radio waves and infrared light (红外线) canpass through this cloud, so telescopes that receive these wavelengths canobserve what is occurring.? ?eta carin

30、ae is of particular interestto astronomers because it seems to be in its death throes (剧痛). being so largeit will end up as a supernova (超新星). there has not been a supernova in ourgalaxy since the invention of the telescope. while a 1987 explosion in a nearbygalaxy gave astronomers plenty of valuabl

31、e data, they are hungry for an evencloser look.? ?eta carinae has other unique features, and is theonly star known to produce an ultraviolet (紫外线) laser that is brighter than thatproduced by the sun. lasers have been observed in other frequencies from a fewstars.which of the following statements abo

32、ut eta carinae is not true? （ ）a.it will end up as a supernova.b.it can be seen only through binoculars,c.it is the only, star that sends out an ultraviolet laser.d.its ultraviolet laser is brighter than that of the sun.6、*html*b第二篇/bb? ? ? ? ? ? ? ?new foods and the new world/b? ?in the last 500yea

33、rs, nothing about people - not their clothes, ideas, or languages - haschanged as much as what they eat. the original chocolate drink was made from theseeds of the cocoa tree (可可树) by south american indians. the spanish introducedit to the rest of the world during the 1500s. and although it was very

34、expensive, it quickly became fashionable. in london, shops where chocolatedrinks were served became important meeting places. some still existtoday.? ?the potato is also from the new world. around 1600, thespanish brought it from peru to europe, where it soon was widely grown. irelandbecame so depen

35、dent on it that thousands of irish people starved when the cropfailed during the “potato famine (饥荒) “of 1845-1846, and thousands more wereforced to leave their homeland and move to america.? ?there aremany other foods that have traveled from south america to the old world. butsome others went in th

36、e opposite direction. brazil is now the worlds largestgrower of coffee, and coffee is an important crop in colombia and other southamerican countries. but it is native to ethiopia, a country in africa. it wasfirst made into a drink by arabs during the 1400%.? ?according toan arabic legend, coffee wa

37、s discovered when a person named kaldi noticed thathis goats were attracted to the red berries on a coffee bush. he tried one andexperienced the “wide-awake” feeling that one third of the worlds populationnow starts the day with.according to the passage, which of the following has changed the most i

38、n the last 500 years? （ ）a.food.b.clothing.c.ideology.d.language.7、*html*b第二篇/bb? ? ? ? ? ? ? ?new foods and the new world/b? ?in the last 500years, nothing about people - not their clothes, ideas, or languages - haschanged as much as what they eat. the original chocolate drink was made from theseed

39、s of the cocoa tree (可可树) by south american indians. the spanish introducedit to the rest of the world during the 1500s. and although it was veryexpensive, it quickly became fashionable. in london, shops where chocolatedrinks were served became important meeting places. some still existtoday.? ?the

40、potato is also from the new world. around 1600, thespanish brought it from peru to europe, where it soon was widely grown. irelandbecame so dependent on it that thousands of irish people starved when the cropfailed during the “potato famine (饥荒) “of 1845-1846, and thousands more wereforced to leave

41、their homeland and move to america.? ?there aremany other foods that have traveled from south america to the old world. butsome others went in the opposite direction. brazil is now the worlds largestgrower of coffee, and coffee is an important crop in colombia and other southamerican countries. but

42、it is native to ethiopia, a country in africa. it wasfirst made into a drink by arabs during the 1400%.? ?according toan arabic legend, coffee was discovered when a person named kaldi noticed thathis goats were attracted to the red berries on a coffee bush. he tried one andexperienced the “wide-awak

43、e” feeling that one third of the worlds populationnow starts the day with.”some” in the last sentence of the first paragraph refers to （ ）a.some cocoa trees.b.some chocolate drinks.c.some shops.d.some south american indians.8、*html*b第二篇/bb? ? ? ? ? ? ? ?new foods and the new world/b? ?in the last 50

44、0years, nothing about people - not their clothes, ideas, or languages - haschanged as much as what they eat. the original chocolate drink was made from theseeds of the cocoa tree (可可树) by south american indians. the spanish introducedit to the rest of the world during the 1500s. and although it was

45、veryexpensive, it quickly became fashionable. in london, shops where chocolatedrinks were served became important meeting places. some still existtoday.? ?the potato is also from the new world. around 1600, thespanish brought it from peru to europe, where it soon was widely grown. irelandbecame so d

46、ependent on it that thousands of irish people starved when the cropfailed during the “potato famine (饥荒) “of 1845-1846, and thousands more wereforced to leave their homeland and move to america.? ?there aremany other foods that have traveled from south america to the old world. butsome others went i

47、n the opposite direction. brazil is now the worlds largestgrower of coffee, and coffee is an important crop in colombia and other southamerican countries. but it is native to ethiopia, a country in africa. it wasfirst made into a drink by arabs during the 1400%.? ?according toan arabic legend, coffe

48、e was discovered when a person named kaldi noticed thathis goats were attracted to the red berries on a coffee bush. he tried one andexperienced the “wide-awake” feeling that one third of the worlds populationnow starts the day with.thousands of irish people starved during the “potato famine” becaus

49、e （ ）a.they were so dependent on potatoes that they refused to eat anything else.b.they were forced to leave their homeland and move to america.c.the weather conditions in ireland were not suitable for growing potatoes.d.the potato harvest was bad.9、*html*b第二篇/bb? ? ? ? ? ? ? ?new foods and the new

50、world/b? ?in the last 500years, nothing about people - not their clothes, ideas, or languages - haschanged as much as what they eat. the original chocolate drink was made from theseeds of the cocoa tree (可可树) by south american indians. the spanish introducedit to the rest of the world during the 150

51、0s. and although it was veryexpensive, it quickly became fashionable. in london, shops where chocolatedrinks were served became important meeting places. some still existtoday.? ?the potato is also from the new world. around 1600, thespanish brought it from peru to europe, where it soon was widely g

52、rown. irelandbecame so dependent on it that thousands of irish people starved when the cropfailed during the “potato famine (饥荒) “of 1845-1846, and thousands more wereforced to leave their homeland and move to america.? ?there aremany other foods that have traveled from south america to the old worl

53、d. butsome others went in the opposite direction. brazil is now the worlds largestgrower of coffee, and coffee is an important crop in colombia and other southamerican countries. but it is native to ethiopia, a country in africa. it wasfirst made into a drink by arabs during the 1400%.? ?according t

54、oan arabic legend, coffee was discovered when a person named kaldi noticed thathis goats were attracted to the red berries on a coffee bush. he tried one andexperienced the “wide-awake” feeling that one third of the worlds populationnow starts the day with.which country is the largest coffee produce

55、r? （ ）a.brazil.b.colombia.c.ethiopia.d.egypt.10、*html*b第二篇/bb? ? ? ? ? ? ? ?new foods and the new world/b? ?in the last 500years, nothing about people - not their clothes, ideas, or languages - haschanged as much as what they eat. the original chocolate drink was made from theseeds of the cocoa tree

56、 (可可树) by south american indians. the spanish introducedit to the rest of the world during the 1500s. and although it was veryexpensive, it quickly became fashionable. in london, shops where chocolatedrinks were served became important meeting places. some still existtoday.? ?the potato is also from

57、 the new world. around 1600, thespanish brought it from peru to europe, where it soon was widely grown. irelandbecame so dependent on it that thousands of irish people starved when the cropfailed during the “potato famine (饥荒) “of 1845-1846, and thousands more wereforced to leave their homeland and move to america.? ?there aremany other foods