Will the 3:50 train be c for you?If it is,I’ll book a ticket for you. 题目和参考答案——青夏教育精英家教网—

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Will the 3:50 train be c__________for you?If it is,I’ll book a ticket for you.

convenient

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相关题目

In the atmosphere , carbon dioxide acts rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun’s rays to enter but prevents the heat from escaping.

According to a weather expert’s prediction, the atmosphere will be 3 ℃ warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球), possibly resulting in an alteration of the earth’s chief food growing zones.

In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels.

Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth

However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. Scientists conclude, therefore, that up to now natural influences on the weather have gone beyond those caused by man. The question is: Which natural cause has most effect on the weather?

One possibility is the variable behavior of the sun. Astronomers at one research station have studied the hot sports and ‘cold” spots( that is, the relatively less hot spots) on the sun. As the sun rotates(使旋转), every 27.5 days, it presents hotter or colder faces to the earth, and different aspects to different parts of the earth. This seems to have a considerable effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation. The sun is also changeable over a long term: its heat output goes up and down in cycles, the latest trend being downward.

Scientists are now finding shared relations between models of solar weather interactions and the actual climate over many thousands of years, including the last Ice Age. The problem is that the models are predicting that the world should be entering a new Ice Age and it is hot. One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(惯性) of the earth’s climate. If this is right, the warming effect of carbon dioxide might thus be serving as a useful opposed balance to the sun’s fading heat.

It can be concluded that concentration of carbon dioxide in the atmosphere would ____.

A. mean a warming-up in the Arctic.

B. raise the temperature of the earth’s surface.

C. prevent the sun’s rays from reaching the earth’ s surface.

D. explain the cause of great changes in the climate in the northern hemisphere.

The article was written to explain____.

A. the greenhouse effect. B. the solar effects on the earth.

C. the causes affecting weather. D. the models of solar weather of solar weather interactions.

Although the fuel consumption is greater in the northern hemisphere, temperature there seems to be falling. This is ____.

A. mainly because the levels of carbon dioxide are rising

B. partly due to changes in the output of solar energy

C. possibly because the ice caps in the poles are melting

D. only due to the effect of the inertia of the earth’s climate

On the basis of their models, scientists are of the opinion that .

A. the climate of the world should be becoming cooler

B. the new Ice Age will be delayed by the greenhouse effect

C. the man-made warning effect helps to increase the solar effects

D. it will take thousands of years for the interia of the earth’s climate to take effect.

If the assumption about the delay of a new Ice Age is correct, ___.

A. ice would soon cover the northern hemisphere.

B. the greenhouse effect could work in favor of the earth.

C. the best way to overcome the cooling effect would be to burn more fuels.

D. the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly.

In 1989 an 8.2 earthquake almost flattened America, killing over 30,000 people in less than four minutes. In the middle of complete damage and disorder, a father rushed to the school where his son was supposed to be, ___1__ that the building was ___2___.

After the unforgettably shock, he ___3___ the promise he had made to his son: "No matter ___4___, I'll always be there for you!" And tears began to ___5___ his eyes. As he looked at the pile of ruins, it looked hopeless, but he kept remembering his ___6___to his son. He rushed there and started ___7___ the ruins.

As he was digging, other helpless parents arrived, ___8___: "It's too late! They're all dead! ___9___, face reality, there's nothing you can do!" To each parent he responded with ___10___: "Are you going to help me now?" No one helped． And then he continued to dig for his son, stone by stone.

Courageously he went on alone because he needed to know ___11___: "Is my boy ___12____ or is he dead?" He dug for eight hours...12 hours...24 hours...1 hours...then, in ___13____ hour, he pulled back a large stone and heard his son's __14____. He screamed his son's name, "ARMAND!" He heard back, "Dad!?! It's me, Dad! I told the other kids not to worry. I told them that if you were alive, you __15____ me and __16____ you saved me, they'd be saved． You promised, 'No matter what happens, I'll always be there for you!' You did it, Dad!"

"What's going on in there? " the father asked．

"There are 14 of us __17____ __18____ 33, Dad． We're scared, hungry, thirsty and thankful you're here. When the building collapsed, it made __19____, and it saved us."

"Come out, boy!"

"No, Dad! Let the other kids out first, __20____ I know you'll get me! No matter

what happens, I know you'll always be there for me!"

1．A．only discovering B．only to discover C．only realizing D．only to realize

2．A．as flat as a pancake B．as high as a mountain

C．as strong as an ox D．as weak as a kitten

3．A．memorized 　　　　　 B．forgot 　　　　　　　　 C．kept 　　　　　　　　　　 D．remembered

4．A．what 　　　　　　　 B．what happen 　　　　 C．which　　　　　　　　 D．who

5．A．fill 　　　　　　　　　　 B．fill in 　　　　　　　 C．come　　　　　　　 D．burst

6．A．picture 　　　　　　　 B．promise 　　　　　　　 C．present　　　　　　 D．encourage

7．A．digging 　　　　　　　 B．digging through 　　 C．digging out 　　　　　 D．digging into

8．A．to say 　　　　　　　　 B．said 　　　　　　　　　 C．and saying 　　　　　　 D．saying

9．A．Come out 　　　　　　　 B．Come again 　　　　　 C．Come on 　　　　　　 D．Come off

10．A．one word　　　　　　　　 B．one sound 　　　　　 C．one row 　　　　　 D．one line

11．A．for himself 　　　　　 B．of himself 　　　　　　 C．by himself 　　　　　　 D．to himself

12．A．live 　　　　　　　　　　　 B．living 　　　　　　　　　 C．alive 　　　　　　　　　　　　 D．lively

13．A．3 　　　　　　　　　　 B．the 3 　　　　　　　　　　 C．3^th 　　　　　　　 D．the 3^th

14．A．sound 　　　　　　　 B．voice 　　　　　　　　　 C．noise 　　　　　　　　 D．tone

15．A．will save B．would save C．save D．would have saved

16．A．when 　　　　　　　　　 B．because 　　　　　　　　 C．even if　　　　　　　　 D．though

17．A．remained 　　　　　　　 B．missing 　　　　　　　　 C．left 　　　　　　　　　　　 D．gone

18．A．for 　　　　　　　　　 B．behind 　　　　　　　　　 C．out of 　　　　　　　　　 D．over

19．A．a promise 　　　　　　 B．space 　　　　　　　　　 C．room 　　　　　　　　　 D．a triangle

20．A．because B．though C．when D．even though

Back those photos up
The images were striking. Homes on the East Coast were washed away by Superstorm Sandy. People were in tears, picking up faded photographs, among their only remaining possessions.
If that doesn’t move you to get serious about safekeeping your lifetime of memories, what will? The digital age offers tools never imaginable before—including one-click access to a lifetime of family photos.
Here is a brochure on how to back up (存) your photos and save them online, where they can live forever and be accessible in good times and bad.
Scanning
The first step for those old photos is to scan them and save them to a digital format. Most printers come with scanners these days, so that’s an easy but extremely time-consuming step.
Storing the photos
With your scans in place, import the photos into your computer, and back them up.
You could make multiple copies of the disks and spread them to loved ones. Or you could choose external(外接的) hard drives or USB thumb drive, and add your photo and video collection from your computer.
Online backup
If you need lots of space, look at a pure online backup service, Caronite.
Caronite backs up 300 million files daily. Once you sign up, it starts to pick up everything you have on your hard drive. But photo collection on your computer’s main hard drive charges for $59 a year.
Cloud Storage
For folks who don’t need automatic backup, but instead want to take a more active approach, Dropbox, Google Drive and Microsoft’s SkyDrive let you store files online by yourself, share and instantly access them. All offer free options—2GB of free storage for Dropbox, 5GB for Google and 7GB for SkyDrive. But if you want more, you need to pay.
Bottom Line
The hard drive or flash drive is the cheapest and easiest. But drives can fail. Online services are more expensive, but more secure. With more of us switching back and forth between our computers, such services are the best way to get access to our data from wherever we are.
【小题1】Why does the author mention Superstorm Sandy?