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单选题The biggest advantage of this product is that ______.A it will be faster and cheaper than manual laborB it can climb mountainsides, drill holes, insert bars and cementC it can collect data on the slope’ s stabilityD it can drill without a human being o

题目
单选题
The biggest advantage of this product is that ______.
A

it will be faster and cheaper than manual labor

B

it can climb mountainsides, drill holes, insert bars and cement

C

it can collect data on the slope’ s stability

D

it can drill without a human being on board

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相似问题和答案

第1题：

Fly ash can partly take the place of ______.

A. paving material

B. cement

C. concrete

D. the coal by-product


正确答案：B
答案为B。根据第一段倒数第二句，and can replace up to 20 percent of the cement used in concrete, "replace"相当于“take the place of”

第2题：

Many experts believe that in the new world of artificial intelligence（AI）human beings will still be needed to do the jobs that require higher-order critical,creative,and innovative thinking and the jobs that require high emotional engagement to meet the needs of other human beings.The 1 for many of us is that we do not excel at those skills because of our natural cognitive and emotional tendencies:We are confirmation-seeking thinkers and ego-affirmation-seeking defensive reasoners.We will need to overcome those tendencies 2 take our thinking,listening,relating,and collaborating skills to a much higher level.This process of 3 begins with changing our definition of what it means to"be smart."4,many of us have achieved success 5 being"smarter"than other people as 6 by grades and test scores,beginning in our early days in school.AI will change that because there is no 7 any human being can outsmart,8,IBM's Watson,at least without augmentation,Smart machines can process,9,and recall information faster and better than we humans.10.AI can pattern-match faster and produce a wider array of alternatives than we can.AI can even learn faster.In an age of smart machines,our old definition of what makes a person smart doesn't 11.What is needed is a new definition of being smart,one that 12 higher levels of human thinking and emotional engagement.The new smart will be determined not by what or how you know 13 by the quality of your thinking,listening,relating,collaborating,and learning.Quantity is 14 by quality.We will spend more time training to be open-minded and learning to update our beliefs in 15 to new data.We will practice 16 after our mistakes,and we will invest more in the skills traditionally 17 with emotional intelligence.The new smart will be about trying to overcome the two big 18 0f critical thinking and team collaboration:our ego and our fears.Doing so will make it easier to perceive reality as it is,rather than as we 19 it to be.In short,we will embrace humility.That is 20 we humans will add value in a world of smart technology.
1选？

A.controversy
B.challenge
C.opportunity
D.compromise

答案：B
解析：
本题考查上下文语义。those skills回指上文“Al时代仍然需要的人类技能：更高层次的批判性、创造性和创新性思维以及高度的情感投人”，空格后“我们不擅长这些技能”这一情况应该是“AI时代我们亟需克服的问题”．B.challenge符合文意。

第3题：

29． When it thunders, we always see the light before we hear the sound．______ It’s because

A． our eyes are in front of our ears

B． our eyes are cleverer than our ears

C． our eyes can see but our ears can-t

D．light goes faster than sound


正确答案：D
29.D【解析】这是一个科普常识，因为光速比声速快。

第4题：

共用题干
Black Holes

1 Black holes can be best described as a sort of vacuum,sucking up everything in space.Scientists
have discovered that black holes come from an explosion of huge stars.Stars that are near death can no longer
burn due to loss of fuel , and because its temperature can no longer control the gravitational（重力的）force,
hydrogen ends up putting pressure onto the star's surface until it suddenly explodes then collapses.
2 Black holes come from stars ihat are made of hydrogen,other gases and a few metals.When these
explode it can turn into a stellar-mass（恒星质量) black hole , which can only occur if the star is large enough
(should be bigger than the sun)for the explosion to break it into pieces,and the gravity starts to compact
every piece into the tiniest particle.Try to see and compare:if a star that's ten times the size of the sun ends
up being a black hole that's no longer than 70 kilometers,then the Earth would become a black hole that'S
only a fraction of an inch!
3 Objects that get sucked in a black hole will always remain there,never to break free.i1it remember
that black holes can only gobble up（吞噬）objects within a specific distance to it.It's possible for a large
star near the sun to become a black hole,but the sun will continue to stay in place.Orbits（轨道）do not
change because the newly formed black hole contains exactly the same amount of mass as when it was a star,
only this time its mass is totally contracted that it can end up as no bigger than a state.
4 Sofar,astronomers have figured out that black holes exist because of Albert Einstcin's theory of
relativity.In the end,through numerous studies,they have discovered that black holes truly exist.Since black
holes trap light and do not give off light,it is nearly impossible to detect black holes via a telescope.But
astronomers continue to study galaxies（银河系）, space and the solar system to understand how black holes
might evolve.It is possible that black holes can exist for millions of years,and later contribute to a bigger
process in galaxies,which can eventually lead to creation of new entities（实体）.Scientists also credit black
holes as helpful in learning how galaxies began to form.

Paragraph 1________
A:What Happens to the Objects Around a Black Hole?
B:Is There Proof That Black Holes Really Exist?
C:How Were Black Holes Named?
D:What Are Different Types of Black Holes?
E:What Are Black Holes Made of?
F: How Are Black Holes Formed?

答案：F
解析：
第一段描述了什么是黑洞，以及它产生的缘由―巨型恒星爆炸，并叙述了恒星爆炸的 原因和简要过程。再看选项，只有F项符合题意。
第二段的主要内容是：恒星来自由氢气、其他气体和一些金属组成的恒星；当这些物质 爆炸时，恒星就变成了质量与原先的恒星等同的黑洞，恒星的每个碎片都被重力压缩成极小的 颗粒。观察选项，似乎E、F两项都可选，但一则上一小题只能选F项，二则此段虽也讲了黑洞 是怎么形成的，但比较侧重黑洞形成过程中，原来的恒星变成极小的颗粒。由第三段最后一句 也可知，这些颗粒的质量总和与原来的恒星一样，正是这些颗粒使黑洞有极大的吸附性，而成 其为“黑洞”。因此，黑洞就是由这些极小却质量巨大、吸附性极强的颗粒构成的。故选E。
第三段描述了黑洞极大的吸附性，及其具有如此大的吸附性的原因。黑洞形成后，周 围一定距离内的几乎一切东西都会被吞噬而难以逃脱，故选A。
第四段主要讲黑洞存在的依据及科学家们的研究和设想。故选B。
由第一段第二句“...black holes come from an explosion of huge stars.”可知答案。
由第二段第二句后半部分“...the gravity starts to compact every piece into the tiniestparticle”可知答案。
由第三段最后一句“…the newly formed black hole contains exactly the same amount of mass as when it was a star...”可知答案。
由第四段第一句话可知答案。

第5题：

共用题干
Black Holes

1 Black holes can be best described as a sort of vacuum,sucking up everything in space.Scientists
have discovered that black holes come from an explosion of huge stars.Stars that are near death can no longer
burn due to loss of fuel , and because its temperature can no longer control the gravitational（重力的）force,
hydrogen ends up putting pressure onto the star's surface until it suddenly explodes then collapses.
2 Black holes come from stars ihat are made of hydrogen,other gases and a few metals.When these
explode it can turn into a stellar-mass（恒星质量) black hole , which can only occur if the star is large enough
(should be bigger than the sun)for the explosion to break it into pieces,and the gravity starts to compact
every piece into the tiniest particle.Try to see and compare:if a star that's ten times the size of the sun ends
up being a black hole that's no longer than 70 kilometers,then the Earth would become a black hole that'S
only a fraction of an inch!
3 Objects that get sucked in a black hole will always remain there,never to break free.i1it remember
that black holes can only gobble up（吞噬）objects within a specific distance to it.It's possible for a large
star near the sun to become a black hole,but the sun will continue to stay in place.Orbits（轨道）do not
change because the newly formed black hole contains exactly the same amount of mass as when it was a star,
only this time its mass is totally contracted that it can end up as no bigger than a state.
4 Sofar,astronomers have figured out that black holes exist because of Albert Einstcin's theory of
relativity.In the end,through numerous studies,they have discovered that black holes truly exist.Since black
holes trap light and do not give off light,it is nearly impossible to detect black holes via a telescope.But
astronomers continue to study galaxies（银河系）, space and the solar system to understand how black holes
might evolve.It is possible that black holes can exist for millions of years,and later contribute to a bigger
process in galaxies,which can eventually lead to creation of new entities（实体）.Scientists also credit black
holes as helpful in learning how galaxies began to form.

Albert Einstein's theory of relativity helps to prove__________.
A:the existence of black holes
B:the creation of new entities
C:the same amount of mass
D:an fraction of an inch
E:a fraction of an inch
F:the tiniest particle

答案：A
解析：
第一段描述了什么是黑洞，以及它产生的缘由―巨型恒星爆炸，并叙述了恒星爆炸的 原因和简要过程。再看选项，只有F项符合题意。
第二段的主要内容是：恒星来自由氢气、其他气体和一些金属组成的恒星；当这些物质 爆炸时，恒星就变成了质量与原先的恒星等同的黑洞，恒星的每个碎片都被重力压缩成极小的 颗粒。观察选项，似乎E、F两项都可选，但一则上一小题只能选F项，二则此段虽也讲了黑洞 是怎么形成的，但比较侧重黑洞形成过程中，原来的恒星变成极小的颗粒。由第三段最后一句 也可知，这些颗粒的质量总和与原来的恒星一样，正是这些颗粒使黑洞有极大的吸附性，而成 其为“黑洞”。因此，黑洞就是由这些极小却质量巨大、吸附性极强的颗粒构成的。故选E。
第三段描述了黑洞极大的吸附性，及其具有如此大的吸附性的原因。黑洞形成后，周 围一定距离内的几乎一切东西都会被吞噬而难以逃脱，故选A。
第四段主要讲黑洞存在的依据及科学家们的研究和设想。故选B。
由第一段第二句“...black holes come from an explosion of huge stars.”可知答案。
由第二段第二句后半部分“...the gravity starts to compact every piece into the tiniestparticle”可知答案。
由第三段最后一句“…the newly formed black hole contains exactly the same amount of mass as when it was a star...”可知答案。
由第四段第一句话可知答案。

第6题：

共用题干
B1i'k Holes

1 Black holes can be best described as a sort of vacuum,sucking up everything in space. Scientists
have discovered that black holes come from an explosion of huge stars. Stars that are near death can no longer
burn due to loss of fuel , and because its temperature can no longer control the gravitational（重力的）force,
hydrogen ends up putting pressure onto the star' s surface until it suddenly explodes then collapses.
2 Black holes come from stars that are made of hydrogen,other gases and a few metals. When these
explode it can turn into a stellar-mass ( 恒星质量）black hole , which can only occur if the star is large enough
(should be bigger than the sun) for the explosion to break it into pieces,and the gravity starts to compact
every piece into the tiniest particle. Try to see and compare:if a star that' s ten times the size of the sun ends
up being a black hole that' s no longer than 70 kilometers ,then the Earth would become a black hole that' s
only"fraction of an inch!
3 Objects that get sucked in a black hie will always remain there,never to brsak fren. But remember
that black holes can only gobble up（吞噬）objects within a specific distance to it It' s possible for a large
star near the sun to become a black hole,but the sun will continue to stay in place. Orbits (轨道）do not
change because the newly formed black hole, contains exactly the same amount of mass as when it was a star,
only this time its mass is totally contracted that it can end up as on biggeer tnan a state.
4 So far, astronomers have figured out that black holes exist because of Albert Einstenin's theory of
relativity. In the end,through numerous studies ,they have discovered that black holes truly exist. Since black
holes trap light and do not give off light,it is nearly impossible to detect black goles via a telescope. But
astronomers continue to study galaxies (银河系）,space and the solar system to understand how black holes
misht evolve. It is possible that black holes can exist for millions of years,and later contribute to a bigger
process in galaxies ,which can eventually lead to creation of new entities（实体）.Scientists also credit black
holes as helpful in learning how galaxies began to form.

Paragraph 2_____________
A:What Happens to the Objects Around a Black Hole?
B:Is There Proof That Black Holes Really Exist?
C:How Were Black Holes Named?
D:What Are Different Types of Black Holes?
E:What Are Black Holes Made of?
F:How Are Black Holes Formed?

答案：E
解析：
第一段描述了什么是黑洞，以及它产生的缘由―巨型恒星爆炸，并叙述了恒星爆炸的 原因和简要过程。再看选项，只有F项符合题意。
第二段的主要内容是：恒星来自由氢气、其他气体和一些金属组成的恒星；当这些物质 爆炸时，恒星就变成了质量与原先的恒星等同的黑洞，恒星的每个碎片都被重力压缩成极小的 颗粒。观察选项，似乎E、F两项都可选，但一则上一小题只能选F项，二则此段虽也讲了黑洞 是怎么形成的，但比较侧重黑洞形成过程中，原来的恒星变成极小的颗粒。由第三段最后一句 也可知，这些颗粒的质量总和与原来的恒星一样，正是这些颗粒使黑洞有极大的吸附性，而成 其为“黑洞”。因此，黑洞就是由这些极小却质量巨大、吸附性极强的颗粒构成的。故选E。
第三段描述了黑洞极大的吸附性，及其具有如此大的吸附性的原因。黑洞形成后，周 围一定距离内的几乎一切东西都会被吞噬而难以逃脱，故选A。
第四段主要讲黑洞存在的依据及科学家们的研究和设想。故选B。
由第一段第二句“…black holes come from an explosion of huge stars.”可知答案。
由第二段第二句后半部分“…the gravity。tartst。。ompact evey piece into the tiniest particle”可知答案。
由第三段最后一句“…the newly formed black hol。Contains。xactly the same amount of mass as when it was a star…”可知答案。
由第四段第一句话可知答案。第4部分：阅读理解第一篇 本文主要讲的是科学家利用植物的光合作用使其生产氢气等可供人类使用的能源。

第7题：

共用题干
Black Holes

1 Black holes can be best described as a sort of vacuum,sucking up everything in space.Scientists
have discovered that black holes come from an explosion of huge stars.Stars that are near death can no longer
burn due to loss of fuel , and because its temperature can no longer control the gravitational（重力的）force,
hydrogen ends up putting pressure onto the star's surface until it suddenly explodes then collapses.
2 Black holes come from stars ihat are made of hydrogen,other gases and a few metals.When these
explode it can turn into a stellar-mass（恒星质量) black hole , which can only occur if the star is large enough
(should be bigger than the sun)for the explosion to break it into pieces,and the gravity starts to compact
every piece into the tiniest particle.Try to see and compare:if a star that's ten times the size of the sun ends
up being a black hole that's no longer than 70 kilometers,then the Earth would become a black hole that'S
only a fraction of an inch!
3 Objects that get sucked in a black hole will always remain there,never to break free.i1it remember
that black holes can only gobble up（吞噬）objects within a specific distance to it.It's possible for a large
star near the sun to become a black hole,but the sun will continue to stay in place.Orbits（轨道）do not
change because the newly formed black hole contains exactly the same amount of mass as when it was a star,
only this time its mass is totally contracted that it can end up as no bigger than a state.
4 Sofar,astronomers have figured out that black holes exist because of Albert Einstcin's theory of
relativity.In the end,through numerous studies,they have discovered that black holes truly exist.Since black
holes trap light and do not give off light,it is nearly impossible to detect black holes via a telescope.But
astronomers continue to study galaxies（银河系）, space and the solar system to understand how black holes
might evolve.It is possible that black holes can exist for millions of years,and later contribute to a bigger
process in galaxies,which can eventually lead to creation of new entities（实体）.Scientists also credit black
holes as helpful in learning how galaxies began to form.

When a large star explodes,the gravity compacts every piece into______.
A:the existence of black holes
B:the creation of new entities
C:the same amount of mass
D:an fraction of an inch
E:a fraction of an inch
F:the tiniest particle

答案：F
解析：
第一段描述了什么是黑洞，以及它产生的缘由―巨型恒星爆炸，并叙述了恒星爆炸的 原因和简要过程。再看选项，只有F项符合题意。
第二段的主要内容是：恒星来自由氢气、其他气体和一些金属组成的恒星；当这些物质 爆炸时，恒星就变成了质量与原先的恒星等同的黑洞，恒星的每个碎片都被重力压缩成极小的 颗粒。观察选项，似乎E、F两项都可选，但一则上一小题只能选F项，二则此段虽也讲了黑洞 是怎么形成的，但比较侧重黑洞形成过程中，原来的恒星变成极小的颗粒。由第三段最后一句 也可知，这些颗粒的质量总和与原来的恒星一样，正是这些颗粒使黑洞有极大的吸附性，而成 其为“黑洞”。因此，黑洞就是由这些极小却质量巨大、吸附性极强的颗粒构成的。故选E。
第三段描述了黑洞极大的吸附性，及其具有如此大的吸附性的原因。黑洞形成后，周 围一定距离内的几乎一切东西都会被吞噬而难以逃脱，故选A。
第四段主要讲黑洞存在的依据及科学家们的研究和设想。故选B。
由第一段第二句“...black holes come from an explosion of huge stars.”可知答案。
由第二段第二句后半部分“...the gravity starts to compact every piece into the tiniestparticle”可知答案。
由第三段最后一句“…the newly formed black hole contains exactly the same amount of mass as when it was a star...”可知答案。
由第四段第一句话可知答案。

第8题：

According to Charles, people send messages via facsimile because ______.

A．it is cheaper and faster than ordinary mail

B．it can send things that could not be expressed by telex

C．it is faster and not much more expensive than mail

D．the Royal Mail could not reach places abroad


正确答案：B

第9题：

共用题干
Black Holes

1 Black holes can be best described as a sort of vacuum,sucking up everything in space.Scientists
have discovered that black holes come from an explosion of huge stars.Stars that are near death can no longer
burn due to loss of fuel , and because its temperature can no longer control the gravitational（重力的）force,
hydrogen ends up putting pressure onto the star's surface until it suddenly explodes then collapses.
2 Black holes come from stars ihat are made of hydrogen,other gases and a few metals.When these
explode it can turn into a stellar-mass（恒星质量) black hole , which can only occur if the star is large enough
(should be bigger than the sun)for the explosion to break it into pieces,and the gravity starts to compact
every piece into the tiniest particle.Try to see and compare:if a star that's ten times the size of the sun ends
up being a black hole that's no longer than 70 kilometers,then the Earth would become a black hole that'S
only a fraction of an inch!
3 Objects that get sucked in a black hole will always remain there,never to break free.i1it remember
that black holes can only gobble up（吞噬）objects within a specific distance to it.It's possible for a large
star near the sun to become a black hole,but the sun will continue to stay in place.Orbits（轨道）do not
change because the newly formed black hole contains exactly the same amount of mass as when it was a star,
only this time its mass is totally contracted that it can end up as no bigger than a state.
4 Sofar,astronomers have figured out that black holes exist because of Albert Einstcin's theory of
relativity.In the end,through numerous studies,they have discovered that black holes truly exist.Since black
holes trap light and do not give off light,it is nearly impossible to detect black holes via a telescope.But
astronomers continue to study galaxies（银河系）, space and the solar system to understand how black holes
might evolve.It is possible that black holes can exist for millions of years,and later contribute to a bigger
process in galaxies,which can eventually lead to creation of new entities（实体）.Scientists also credit black
holes as helpful in learning how galaxies began to form.

Black holes are formed after_________.
A:the existence of black holes
B:the creation of new entities
C:the same amount of mass
D:an fraction of an inch
E:a fraction of an inch
F:the tiniest particle

答案：D
解析：
第一段描述了什么是黑洞，以及它产生的缘由―巨型恒星爆炸，并叙述了恒星爆炸的 原因和简要过程。再看选项，只有F项符合题意。
第二段的主要内容是：恒星来自由氢气、其他气体和一些金属组成的恒星；当这些物质 爆炸时，恒星就变成了质量与原先的恒星等同的黑洞，恒星的每个碎片都被重力压缩成极小的 颗粒。观察选项，似乎E、F两项都可选，但一则上一小题只能选F项，二则此段虽也讲了黑洞 是怎么形成的，但比较侧重黑洞形成过程中，原来的恒星变成极小的颗粒。由第三段最后一句 也可知，这些颗粒的质量总和与原来的恒星一样，正是这些颗粒使黑洞有极大的吸附性，而成 其为“黑洞”。因此，黑洞就是由这些极小却质量巨大、吸附性极强的颗粒构成的。故选E。
第三段描述了黑洞极大的吸附性，及其具有如此大的吸附性的原因。黑洞形成后，周 围一定距离内的几乎一切东西都会被吞噬而难以逃脱，故选A。
第四段主要讲黑洞存在的依据及科学家们的研究和设想。故选B。
由第一段第二句“...black holes come from an explosion of huge stars.”可知答案。
由第二段第二句后半部分“...the gravity starts to compact every piece into the tiniestparticle”可知答案。
由第三段最后一句“…the newly formed black hole contains exactly the same amount of mass as when it was a star...”可知答案。
由第四段第一句话可知答案。

第10题：

Many experts believe that in the new world of artificial intelligence（AI）human beings will still be needed to do the jobs that require higher-order critical,creative,and innovative thinking and the jobs that require high emotional engagement to meet the needs of other human beings.The 1 for many of us is that we do not excel at those skills because of our natural cognitive and emotional tendencies:We are confirmation-seeking thinkers and ego-affirmation-seeking defensive reasoners.We will need to overcome those tendencies 2 take our thinking,listening,relating,and collaborating skills to a much higher level.This process of_3 begins with changing our definition of what it means to"be smart."4.many of us have achieved success 5 being"smarter"than other people as 6 by grades and test scores,beginning in our early days in school.AI will change that because there is no 7 any human being can outsmart,8.,lBM's Watson,at least without augmentation.Smart machines can process,9,and recall information faster and better than we humans.10,AI can pattern-match faster and produce a wider array of alternatives than we can.AI can even learn fasrer.In an age of smart machines,our old definition of what makes a person smart doesn't 11.What is needed is a new definition of being smart,one that 12 higher levels of human thinking and emotional engagement.The new smart will be determined not by what or how you know 13 by the quality of your thinking,listening,relating,collaborating,and learning.Quantity is 14 by quality.We will spend more time training to be open-minded and learning to update our beliefs in 15 to new data.We will practice 16 after our mistakes,and we will invest more in the skills traditionally 17 with emotional intelligence.The new smart will be about trying to overcome the two big 18 0f critical thinking and team collaboration:our ego and our fears.Doing so will make it easier to perceive reality as it is,rather than as we 19 it to be.In short,we will embrace humility.That is 20 we humans will add value in a world of smart technology,13选？

A.but
B.or
C.rather
D.and

答案：A
解析：
本题考查句内语义逻辑。空格后“思考、倾听、联系、合作和学习的质量”是空格上句“更高层次的人类思考和情感投入能力”的同义表达。上文已知“聪明的新定义看重这些品质”，所以本句中，新型的聪明应该由思考、倾听等的质量决定，故空格部分not by what or how you know____by．．．应表示“否定前者，肯定后者”的取舍逻辑，not…bu L…表示“不是……，而是……”，故A.but符合文意。C.raiher表示取舍逻辑时，需用于not.…but rather.，，结构中，故排除。

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