She is widely seen as proof that good lo

题型:阅读理解

问题:

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.

小题1: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D.Mona Lisa does not look out of date though painted 500 years ago小题2:Which of the following is true about the Mona Lisa?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.小题3: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小题4: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

考点:历史文化类阅读
题型:阅读理解

I.已知:

2CO(g)+O2(g)=2CO2(g) △H=-566kJ/mol

2H2(g)+O2(g)=2H2O(g) △H=-483.6kJ/mol

(1)写出可逆反应一氧化碳与水蒸气反应生成二氧化碳和氢气的热化学方程式:________________。

(2)写出CO(g)+H2O(g)CO2(g)+H2(g)的平衡常数表达式:__________,若某温度时K=1,某时刻测得该温度下密闭容器中各物质的物质的量浓度见表

此时正、逆反应速率的关系是_________(填序号)。

A.v(正)>v(逆)B.v(正)<v(逆)C.v(正)=v(逆)D.无法确定

Ⅱ.经测定分析某容器内各物质的物质的量浓度(mol/L)变化如表

(3)计算出0~3min时CO2的平均反应速率及c4:________、________。

(4)4~5min、5~6min之间可能改变的条件分别是__________(填序号)。

A.使用催化剂、增大CO2浓度 B.升高温度、增大H2O浓度 C.降低温度、减小压强

题型:阅读理解

苦杏仁苷属于

A.原生苷

B.单糖链苷

C.双糖苷

D.氧苷

E.氰苷

题型:阅读理解

甲公司为乙公司向丙公司借款作担保,在保证合同中没有明确约定保证的方式,根据有关法律规定,此保证属于( )。

A.一般保证

B.连带保证

C.反担保保证

D.书面保证

题型:阅读理解

编制单位工程质量监督报告,应在竣工验收之日起()天内提交竣工验收备案部门。

A.3

B.5

C.7

D.9

题型:阅读理解

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