The ocean bottom.a region nearly 2.5 times greater than the total land area of the Earth. is even today largely unexplored. Until about a century ago.the deep-ocean floor was completely inaccessible a 题目和参考答案——青夏教育精英家教网—

精英家教网 > 高中英语 > 题目详情

The ocean bottom，a region nearly 2.5 times greater than the total land area of the Earth， is even today largely unexplored. Until about a century ago，the deep-ocean floor was completely inaccessible and hidden beneath waters averaging over 3，600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth's surface，the deep-ocean bottom is a strange environment to humans，in some ways as forbidding and remote as the outer space.
Although researchers have taken samples of deep-ocean rocks for over a

century，the first detailed global study of the ocean bottom did not actually start until 1968，with the beginning of the National Science Foundation's Deep Sea Drilling Project ( DSDP). Using techniques first developed for the offshore oil and gas industry，the DSDP's drill ship，the Glomar Challenger，was able to maintain a steady position on the ocean's surface and drill in very deep

waters，taking samples of rock from the ocean floor.
The Glomar Challenger completed 96 voyages in a 15-year-research program that ende

d in November 1983. During this time，it sailed 600，000 kilometers and took almost
20，000samples of rocks around the world. Those samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to make out what

it will probably look like millions of years in the future. Today，largely on the strength of evidence gathered during the Glomar Challenger's voyages，nearly all earth scientists agree on the theories of plate tectonics (构造学) and continental drift that explains many of the geological processes.
The samples of rocks drilled by the Glomar Challenger have also provided a climatic record stretching back hundreds of millions of years. The information of

past climatic changes can be used to predict future climates.
小题1:The underlined word" inaccessible" in Line 3 means .

A．unrecognizable

B．unreachable

C．unusable

D．unreasonable

小题2:Why does the author mention "outer space" in the first paragraph?

A．The Earth's climate millions of years ago was similar to that in outer space.

B．It is similar to the ocean floor in being strange to the humans.

C．Rock formations in outer space are similar to those found on the ocean floor.

D．Techniques used by scientists to explore outer space were similar to those used in ocean exploration.

小题3:Which of the following is TRUE of the Glomar Challenger?

A．It is a type of submarine.	B．It is an ongoing project.
C．It has gone on over 100 voyages.	D．It made its first DSDP voyage in 1968.

小题4:The Deep Sea Drilling Project was significant because it was .

A．an attempt to find new sources of oil and gas

B．the first extensive exploration of the ocean bottom

C．made up of geologists from all over the world

D．supported entirely by the gas and oil industry

小题5:Which is NOT mentioned in the passage as being a result of the Deep Sea Drilling Project?

A．Geologists were able to determine the Earth's appearance millions of years ago.

B．Two geological theories became more widely accepted by scientists.

C．Geologists observed forms of life never before seen.

D．Information was revealed about the Earth's past climatic changes.

BBDBC

略

练习册系列答案

年级	高中课程	年级	初中课程
高一	高一免费课程推荐！	初一	初一免费课程推荐！
高二	高二免费课程推荐！	初二	初二免费课程推荐！
高三	高三免费课程推荐！	初三	初三免费课程推荐！
更多初中、高中辅导课程推荐,点击进入>>

相关习题

科目：高中英语 来源：不详 题型：完形填空

“Cheese” — a metaphor (隐喻) for what we want to have in life，whether it is a job, a relationship, or money.
Each of us has our own __26__of what cheese is, and we want to __27__it because we believe it makes us __28__.
Once there lived four little characters. Two were __29__named Sniff and Scurry and two were little people named Hem and Haw.
Every morning, the mice and the little people __30_their running wear and went to Cheese Station C __31__they found their cheese. It was such a large store(仓库) of cheese that Hem and Haw __32__moved their homes to be closer to it.
One morning, Sniff and Scurry arrived at Cheese Station C and discovered there was __33__cheese. They weren’t surprised. __34__they had noticed the supply   35 cheese had been getting smaller every day; they were prepared for the result. They set out quickly to __36__new cheese.
Later that same day, Hem and Haw arrived. “What? No cheese! Who moved my cheese?” Hem yelled(叫喊). They went home that night __37__and discouraged.
The next day Hem and Haw __38__to Cheese Station C. But the situation hadn’t changed. Haw asked, “Do Sniff and Scurry know something we don’t know?” Hem __39__him and said, “What would they know? They are simple   40   and we are human beings. They cannot be __41__than we are.”
Haw suggested, “Maybe we should   42  talking about the situation and just to look for some new cheese.”
Haw decided to   43  Cheese Station C while Hem was more comfortable staying in the cheese less Station C.
Meanwhile, Sniff and Scurry went farther   44  they found Cheese Station N. They found what they had been looking for. It was the biggest   45  of cheese the mice had ever seen.

小题1:.

A．feeling

B．idea

C．worry

D．hope

小题2:.

A．get

B．avoid

C．follow

D．try

小题3:

A．happy

B．angry

C．full

D．worried

小题4:

A．humans

B．dogs

C．mice

D．cats

小题5:

A．put in

B．took off

C．gave in

D．put on

小题6:

A．where

B．that

C．which

D．what

小题7:.

A．firstly

B．suddenly

C．finally

D．always

小题8:

A．some

B．no

C．any

D．much

小题9:

A．For

B．If

C．Though

D．Since

小题10:

A．with

B．of

C．for

D．to

小题11:.

A．search for

B．find

C．look after

D．discover

小题12:A. glad

B hopeful

C. unsatisfied

D. excited

小题13:.

A．returned

B．left

C．walked

D．ran

小题14:

A．smiled at

B．laughed at

C．thought of

D．praised

小题15:

A．animals

B．cheese-lovers

C．thieves

D．Sniff and Scurry

小题16:

A．more foolish

B．bigger

C．smarter

D．faster

小题17:

A．start

B．stop

C．get

D．enjoy

小题18:

A．leave

B．go

C．move

D．start

小题19:

A．if

B．unless

C．when

D．until

小题20:

A．store

B．factory

C．company

D．Home

查看答案和解析>>

科目：高中英语 来源：不详 题型：完形填空

Unemployment will certainly be in double-digits next year--and may remain there for some time. And for every person who __1_ as unemployed in the Bureau of Labor Statistics’ household survey, you can bet there’s another either too __2__ to look for work or working part time who’d rather have a full-time job or else taking home less pay than before. And there’s yet another person who’s more fearful that he or she will be the __3__ to lose a job.
__4__, 10 percent unemployment really means 20 percent underemployment or anxious employment, all of which translates __5__ into late payments on mortgages, credit cards, auto and student loans, and loss of health insurance. It also means sleeplessness for tens of millions of Americans, and, of course, __6__ purchases.
Unemployment of this magnitude and duration also translates into ugly __7__, because fear and anxiety are __8__ grounds for the political resentment against immigrants, blacks, the poor, government leaders, business leaders, Jews and other easy _9__. It’s already started. Next year is a mid-term election. Be prepared for worse.
So why is unemployment and underemployment so high? And why is it _10__ to remain high for some time? Because, as noted, people who are worried about their jobs or have no jobs, and who are also trying to _11__ from under a pil

e of debt, are not going to do a lot of shopping. And businesses that don’t have customers aren’t going to do a lot of new _12__. And foreign nations also suffering high __13__ aren’t going to buy a lot of our goods and services. And without customers, companies won’t __14__. They’ll cut payrolls instead.
This brings us to the obvious question: Who’s going to buy the stuff we make or the services we provide, and therefore bring jobs back? There’s only one __15__ left: The government.

小题1:

A．keeps to

B．sticks to

C．shows up

D．attaches

小题2:

A．discouraged

B．timid

C．sure

D．upset

小题3:

A．first

B．next

C．last

D．only

小题4:

A．On the other hand

B．By contrast

C．As a whole

D．In other words

小题5:

A．enormously

B．definitely

C．exactly

D．directly

小题6:

A．fewer

B．more

C．better

D．worse

小题7:

A．economics

B．trades

C．politics

D．industries

小题8:

A．necessary

B．fertile

C．scarce

D．heated

小题9:

A．opponents

B．targets

C．victims

D．potentials

小题10:

A．due

B．able

C．equal

D．likely

小题11:

A．get out

B．get around

C．get into

D．get off

小题12:

A．programming

B．planning

C．investing

D．advertising

小题13:

A．signature

B．unemployment

C．crisis

D．inefficiency

小题14:

A．rent

B．run

C．sell

D．hire

小题15:

A．manufacturer

B．applicant

C．buyer

D．employer

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

Dear Michelle:
My Dad hates my Mom. He tells me that she is a liar and that I should not trust her. Of course, they are divorced but they have “joint custody(共同监护)”. What a joke! I am 15, my brother is nine, and we have a life of hell, frankly.
We live one week on and one week off. This was the brilliant idea of both of my parents, which was fair to them but ruining my life. I can’t get away from his voice and his putting my mom down. Sometimes I think about running away.
A Hopeless Ant
Dear Hopeless Ant:
First, thank you for trusting me with your problem. If all you said is correct, then there are several
things that you can and should do to help yourself, your brother, and your parents.
● You need a family counselor(顾问). Such a person could listen to each family member alone and
then meet together to talk about the situation.
If refused, you need to talk to a counselor in your school. You need to be heard, and you need an
adult who will listen. A school counselor can organize a meeting with your parents.
● Perhaps you need to write to her. Writing things down allows people to go over it more than one
time.
I cannot imagine that she will stand passively by and do nothing at all to help once she reads how
you feel. Your father needs a letter as well. He may not realize the destructive effect that it has on his
children.
● Lastly, have a plan in mind when all else fails that is not self-destructive. Life passes very quickly, and you will grow up and have your own life.
Above all, you need to keep yourself safe. Never doubt that it will get better. Write back and let me know how everything is going.
The Hopeless Ant wrote the letter to _______.
A. complain about the problems
B. ask for advice
C. make his father punished
D. just play a joke
小题1:.
The Hopeless Ant hated his father because __________.

A．his father always told a lie

B．his father wasn’t friendly to his mother

C．his father divorced his mother

D．the Hopeless Ant couldn’t stay with his parents

小题2:.
According to the text, which of the following advice is in greatest need for the Hopeless Ant?

A．Keep himself safe.	B．Have a talk with his parents.
C．Have his own family plan.	D．Write letters to families.

小题3:.
In which part of a website may the passage appear?

A．Entertainment.

B．Advertisement.

C．Life.

D．Education.

查看答案和解析>>

科目：高中英语 来源：不详 题型：完形填空

完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握其大意，从第每题所给的A、B、C、D四个选项中，选出最佳选项
How often do you let other people’s nonsense change your mood? The mark of a successful person is how   36  he can get back his focus on what is important.
Two years ago I gained the knowledge about the Law of the Garbage Truck. I   37  it in a taxi. I got on a taxi, and we headed for Grand Central Station. We were 38 in the right lane(行车道) when   39 a black car jumped out of a parking space right in front of us. My taxi driver stepped on his brakes(刹车)heavily, and    40  the car’s back end by just inches!
The driver almost caused a(n)   41 , saying bad words at us. My t

axi driver just smiled and waved at the guy 42   . So, I said, “This guy almost   43  your car and sent us to the   44  !” On the way to the Grand Central Station, my taxi driver told me what I now   45  “The Law of the Garbage Truck.”
“Many people are like garbage trucks. They run around full of   46  , full of frustration, full of anger, and full of disappointment. As their garbage becomes more, they needed a(n)   47 to dump(扔) it. When someone wants to dump it on you, don’t   48  it. You just smile, wish them well, and focus on important things quickly.
Good leaders know they have to be 49 for their next meeting. Good parents know that they have to welcome their children home from school with hugs and kisses. Good 50 and parents know what is   51 for them. The bottom line is that   52 people do not let garbage Trucks take over their day.
Life is too   53 to wake up in the morning with 54 , so take your time and love the peop

le who treat you right. 55 about the ones who don’t. Don’t be regretful for your life.

小题1:.

A．quickly

B．hardly

C．completely

D．directly

小题2:.

A．realized

B．observed

C．concluded

D．learned

小题3:

A．walking

B．driving

C．running

D．talking

小题4:

A．suddenly

B．slowly

C．secretly

D．finally

小题5:.

A．struck

B．hit

C．approached

D．missed

小题6:

A．argument

B．fire

C．accident

D．debate

小题7:

A．impatiently

B．friendly

C．angrily

D．impolitely

小题8:

A．destroyed

B．stole

C．burned

D．caught

小题9:

A．station

B．office

C．park

D．hospital

小题10:

A．imagine

B．believe

C．call

D．expect

小题11:

A．energy

B．garbage

C．happiness

D．possibility

小题12:

A．assistant

B．chance

C．tool

D．place

小题13:

A．value

B．refuse

C．mind

D．ignore

小题14:

A．ready

B．eager

C．anxious

D．suitable

小题15:

A. teachers

B doctors

C. drivers

D. leaders

小题16:

A．useful

B．important

C．necessary

D．dangerous

小题17:.

A．successful

B．busy

C．silly

D．common

小题18:.

A．long

B．hard

C．short

D．exciting

小题19:

A．aims

B．dreams

C．hopes

D．regrets

小题20:

A. Point

B. Forget

D. Wonder

D. Dream

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

Recently in the hope of earning both money and social experience, I became a door-trw door salesman.
I once read a saying. “If somebody wants something of yours, you will be treated as warmly as spring, but if they don’t you may be treated as coldly as winter.” You may consider this an exaggeration (夸张), but if you are a salesman, it is clearly correct.
You would never have found it to be so true if you hadn’t been a salesman. You needn’t stand doubtful looks and unfriendly comments; you needn’t listen to something completely wrong and nod to say that it was quite right, you needn’t worry about being refused time after time; you needn’t always keep patience and a smile; you needn’t repeat the same sentences over and over again; you needn’t talk to somebody you dislike ....
I did this work for a month, then I decided to give it up; Apart from the reasons above, I found I was paying too much attention to the job and thus sacrificing my study time. The latest test result proved that my grades were getting worse.
Even worse, I hadn’t enough time to join my classmates in college activities. Some times 1 felt lonely and unhappy because of both my study and my part-time job. Now I don’t think it is worth doing such a thing for even though I was earning money it came at great cost.
Newspapers and magazines often publish stories about excellent students who do part-time work while also keeping high scores in class. But according to my experience, park-time work can have some strong negative influences on study.
Most students don’t view the relationship between study and work correctly. In my opinion, if it isn’t a must for financial reasons, students should be careful about taking up a part-time job.
小题1: From the text, we can tell that the writer is _____.

A．an unemployed man	B．a middle-school student
C．a college student	D．a door-to-door salesman

小题2:Which of the following words has the closest meaning to the underlined word “sacrificing”?

A．Losing

B．Wasting

C．Using

D．Getting

小题3:The writer thought_____.

A．doing a part-time job was unnecessary

B．part-time jobs had good effect upon study

C．it was hard to deal with the relationship between study and work

D．part-time jobs would be good for every college student

小题4:What would be the best title for the text _____.

A．Part-time Jobs Are Useful	B．Part-time Jobs Can Cost Dear
C．Students Shouldn’t Take Part-time Jobs	D．Part-time Jobs Are Important to Many Students

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

In early autumn I applied for applied for admission to college. I wanted to go nowhere but to Cornell University,but my mother fought strongly againsnst it. When she saw me studying a photograph of my father on the sports ground of Cornell,she tore it up.
“You can’t say it’s not a great university,just because Papa went there.”
“That’s not it at all.And it is a top university.”She was still holding the pieces in her hand. “But we can’t afford to send you to college.”
“I wouldn’t dream of asking you for money.Do you want me to get a job to help suppont you and Papa?Things aren’t that bad,are they?”
“No,”she said. “I don’t expect you to help support us.”
Father borrowed money form his rich cousins to start a small jewellery shop,His chief customers were his old college friends.To get new customers,my mother had to help.She picked up a long-forgotten membership in the local league of women,so that she cound get to know more people. Whether those people would turn into customers was another question. I knew that my Parents had to wait for quite a long time before their small investment (投资) could show returns.What’s more ,they had not wanted enough to be roch and successful ；otherwise they cound not possibly have managed their lives so badly.
I was torn between the desave to help them and change,their lives,and the determinstion not to repeat their mistakes.I had a strong belief in my power to go what I wanted.After months of hard study I won a full college scholarship（奖学金）.My father could hardly contain his pride in me,and my mother eventually gave in before my success.
小题1:The author was not allowed to go to Cornell University mainly because
his father grduated from the university
his mother did not thinks it a great university
his parents needed him to help support the family
his parents did not have enough money for him
小题2:The father srarted his small shop with the money from

A．a local league	B．his university
C．his relatives	D．his college friends

小题3:Why did the mother renew her membership in the league?

A．To help with her husband’s business	B．To raise money for her son
C．To meet her long-forgotten friends	D．To better manage her life

小题4:According to the text,what was the author determined to do in that autumn? To get a well-paid job for himself
To improve relations with his mother
To go to his dream university
To carry on with his father’s business

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

The bus is a usable form of transportat

ion all over the world because we can easily take it to go everywhere. Also, we do not need to worry about danger on a long-distance trip. Now, we have comfortable buses in London. I would like to describe how comfortable they are. First, the number of seats on a bus has been reduced from 44 to 19. The reason why the number of seats is now 19 is that the seats have been changed to big and comfortable sofas.
Originally, they chang

ed the normal seats to airplane seats and took out ten seats from the buses. However, every customer wanted to have a more comfortable seat on the bus when they went on long-distance trips, so they changed them to sofas. Also, the owners of the bus companies wanted to make more money, so they tr

ied to meet the passengers’ needs. They changed the airplane seats to sofas, so the number of seats is now 19.
As the new buses appear, the prices go up, too. The owners have many ideas, which you have probably never thought about before. Now they have bus attendants who serve water, snacks, newspapers, and towels.
Also, you can change the direction and the height of the sofa to make yourself more comfortable, and there is a service bell on each sofa. Moreover, some companies show movies on the buses. In addition, when you go on a long-distance trip, they have luxurious(豪华的) buses that have an LCD screen on each seat. That is not the only surprising thing on the bus. They also have different TV channels, movie channels, and seventy TV games for killing time while you are on the bus.
小题1:How many airplane seats did they put in a bus originally?

A．10 seats.

B．19 seats.

C．34 seats.

D．44 seats.

小题2: The direction and height of the sofas can be changed so that ______.
A. they can take up less space B. they can hold more people
C. passengers can feel more comfortable D

. passengers can watch a movie
小题3:If you are thirsty and want to have a drink while sitting in the bus, you’d better _____.

A．go to the front of the bus to get it	B．get off the bus to buy some by yourself
C．change the direction of the seat	D．ring the bell on your sofa

小题4:Though there are fewer seats on the buses, _____.

A．the bus can pick up as many passengers as before

B．the owners get more money by offering better service

C．the bus fare remains the same as before

D．the bus is as crowded as it was before

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

Temperature is measured by means of a thermometer (温度计). One general form of thermometer depends upon the fact that most solids and liquids expand as their temperature rises. There are one or two exceptions. There is, for instance, a kind of steel called invar (from “invariable”) which does not change its dimensions as temperature changes; it is valuable for making pendulums (钟摆), since, if the length of a pendulum changes, its time of vibration changes. It is also used for making very accurate measuring scales. In both cases, then, changes of atmospheric temperature have no effect if invar is used.
Another exception is that very odd liquid, water, which has many strange properties (特性). As water gets colder it contracts (收缩), which is ordinary behavior, until it reaches the temperature of 30℃. above freezing point. After that, as it gets colder, it expands. This is fortunate---for considering the freezing of a pond. As the water on top gets colder, it shrinks; and so, volume for volume, it becomes heavier and sinks. This goes on until all the pond is at 30℃, but after that, as the water becomes colder it expands. Therefore the colder water stays on top and freezes, covering the pond with ice. If the water went on contracting down to the freezing point, the pond would become a solid block of ice in the end. This would not worry people who live in hot climates, but it would be very serious for those who live in cold climates, especially for those who want to break the ice and catch fish which live in the cold water beneath.
小题1: Invar is valuable for making pendulums because _______.

A．it can hardly change its shape or size as temperature changes.

B．it will change its dimensions without the change of temperature.

C．its time of vibration doesn’t change if its length changes.

D．its time of vibration does not change if its length changes.

小题2: As water gets colder after reaching the temperature of 30℃. it will _______.

A．contract

B．shrink

C．expand

D．freeze

小题3: Which of the following statements is true, according to this passage?

A．Only invar can be used to make a thermometer.

B．Only water can be used to make a thermometer.

C．Both invar and water can be used to make a thermometer.

D．Neither invar nor water can be used to make a thermometer.

小题4:The best title of this passage is most likely to be _____.

A．Temperature Measurement	B．Two Exceptions
C．Uses of Invar	D．Properties of Water

查看答案和解析>>

同步练习册答案

练习册

高中

初中

小学