1f it so hard, we'd go to town. A. isn’t raining B. weren't raining C. doesn't rain D. has rain 题目和参考答案——青夏教育精英家教网—

题目内容

1f it ________so hard, we'd go to town.

A. isn’t raining

B. weren't raining

C. doesn't rain

D. has rain

答案：B
解析：

这是与目前状况不相符合的虚拟语气。

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1f it ________so hard, we'd go to town.

A. isn’t raining

B. weren't raining

C. doesn't rain

D. has rain

It is midnight on September 22，2012．The sky above Manhattan，New York is filled with a curtain of colorful light． New Yorkers are fascinated by the beautiful aurora(极光)．However, their fascination is short-1ived．

Within a few seconds，electric bulbs dim(变暗)and flicker(闪烁)，then become unusually bright for a few seconds．Then all the lights second go out．Within 90 seconds，the entire eastern half of the US is without power．

Besides the US，Europe，Japan and China are also hit by the same terrible event．It is a violent solar flare(太阳耀斑)，150 million kilometers away on the surface of the sun．

Science fiction? No．A report funded by NASA and issued by the US National Academy of Sciences in January this year says it could happen．

A massive solar flare is most likely on a spring or autumn night in 2012，according to the report．

Solar flares are huge explosions on the surface of the sun．In a matter of just a few minutes they heat material to many millions of degrees and release as much energy as a billion megatons(百万吨)of TNT explosives．Solar flares release a stream of charged high-energy particles(粒子)．They are called“solar winds”

If one solar‘‘wind’’should hit the Earth's magnetic shield(磁扬)，the result could be terrible for humans.

But there’s no need to run for cover from solar winds． They do not harm 1ife on Earth，they only affect the way we live，especially since we depend so much on modern technology．They can pump extra electricity into power line, and pipelines，causing blackouts and fuel leaks(泄漏). Solar winds are also known to affect mobile phone operations, and may disrupt wireless Internet services．

Moreover, solar winds can prevent normal satellite operations，and disrupt radio communications and navigation systems such as the Global Positioning System．

Auroras are powered by solar wind．This wind blows past the Earth at about 400-700 km per second and creates storms in the Earth’s magnetic environment．In the polar regions these explode into southern or northern polar lights．

The most serious solar storm that hit Earth in history happened in 1859． It caused the failure of telegraph(电报)systems in Europe and North America．

So, for humans，the sun is a double-edged sword． Without1 the sun, there would be no 1ife on Earth． Without the sun， Earth would be a frozen dark ball floating in space．However, on the other hand，the sun can disorder our 1ives from time to time．

10．What is the main idea of the passage?

A．It introduces to readers the advantages and disadvantages of the sun．

B．It describes a science fiction set in Manhattan on 22 September 2012．

C．It shows readers the way in which solar winds form inside the sun．

D．It explains what solar flares are and their effects on human life．

11．The first two paragraphs are written_________.

A．to show a beautiful scene in a true story

B．to describe the beautiful scenery of Manhattan

C．to describe the power problem around the world

D．to introduce the topic of this passage

12．What can we conclude from the passage?

A．Solar flares will do great harm to those who are using the Internet．

B．Solar flares cannot reach as far as the polar regions．

C．Solar flares are huge explosions that happen inside the sun．

D．1f it weren’t’t for our reliance on technology, solar flares probably wouldn’t affect us．

13．Solar winds will likely affect us in the following ways EXCEPT that ．

A．normal satellite operations will be stopped

B．the lights in the areas affected will go out at the same time

C．people on the streets will be struck to death

D．some navigation systems will be out of order

She is widely seen as proof that good looks can last for ever. But, at nearly 500 years of age, time is catching up with the Mona Lisa.

The health of the famous picture, painted by Leonardo da Vinci in 1505, is getting worse by the year, according to the Louver Museum(卢浮宫) where it is housed.

“The thin, wooden panel on which the Mona Lisa is painted in oil has changed shape since experts checked it two years ago,” the museum said. Visitors have noticed changes but repairing the world’s most famous painting is not easy. Experts are not sure about the materials the Italian artist used and their current chemical state.

Nearly 6 million people go to see the Mona Lisa every year, many attracted by the mystery of her smile. “It is very interesting that when you’re not looking at her, she seems to be smiling, and then you look at her and she stops,” said Professor Margaret Livingstone of Harvard University. “It’s because direct vision(视觉) is excellent at picking up details, but less suited to looking at shadows. Da Vinci painted the smile in shadows.”

However, the actual history of the Mona Lisa is just as mysterious as the smile. Da Vinci himself loved it so much that he always carried it with him, until it was eventually sold to France’s King Francis I in 1519.

In 1911, the painting was stolen from the Louver by a former employee, who took it out of the museum, hidden under his coat. He said he planned to return it to Italy. The painting was sent back to France two years later. During World War Ⅱ, French hid the painting in small towns to keep it out of the hands of German forces.

We can infer from the text that_______

A. the Mona Lisa is proved to be able to last another 500 years

B. Mona Lisa’s beauty is fading gradually with 500 years passing by

C. the Mona Lisa has been catching people’s wide attention in the past 500 years

D. Mona Lisa does not look out of date though painted 500 years ago

Which of the following is true about the Mona Lisa?

A. It was once taken away and hidden up by German forces.

B. Its painter himself loved it greatly and always kept it in a shade.

C. Mona Lisa stops smiling when you look at her wanting to see her smiles.

D. King Francis I bought it and then returned it to Italy.

Choose the right order about the happenings onto Mona Lisa.

a. It was stolen from the Louver.

b. Its painter sold it to King Francis I

c. Its state of health was checked.

d. It was returned to France and housed in the Louver Museum.

e. It was hidden and protected against Germans.

A. b-a-d-e-c B. d-e-c-b-a C. d-a-e-c-b D. b-c-a-d-e

It may add to the difficulty in repairing the painting that_____.

A. experts haven’t noticed changes in its shape as visitors do

B. it is likely to be stolen again when it’s under repair

C. it is uncertain which country, Italy of France, should take charge

D. experts aren’t sure about the materials and the chemical state of its oil paint

此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：

此行多一个词：把多余的词用斜线（＼）划掉，在该行右边横线上写出该词，并也用斜线划掉。

此行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。

此行错一个词：在错的词下面画一横线，在该行右边横线上写出改正后的词。

One day, I went to the railway station to buy a ticket to my aunt. When I got there, I told that the ticket had all been sold out. Just then a man came up and said with a strongly Zhejiang accent that he had a spare ticket. I didn’t know that if I could believe him or not. After hesitate for a while, I decided to take it. So as soon as the man left, I began to regret. If he was not honest, what shall I do? On a third day, I went to the station to see my aunt away. As I was waving goodbye to her, I saw the man sitting next to my aunt, smiling at me.

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