阅读理解。 She is widely seen as proof that

题型:阅读理解

问题:

阅读理解。

     She is widely seen as proof that good looks can lastforever. 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 Louvre Museum 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 noticedchanges 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 interestingthat when you're not

looking at her, she seems, to be smiling, andthen you look at herand she stops, "said Professor

Margaret Livingstone of Harvard University . "It's because direct vision is excellent at picking

updetail,but less suitedto looking at shadows. Da Vinci paintedthe smile in shadows. "

     However,the actual history of the Mona Lisa is just as my stcrious as the smile. DaVinci

himself loved it so much that he always carriedit with him, until it was even-tually soldto France's

King Francis Ⅰ in 1519.

In 1911,the painting was stolen from the Louvre by a former employee, who took it out of the

museum hidden under his coat. He said he plannedto return it to Italy. The painting was sent

back toFrance two years later. During World War Ⅱ,French hidthe painting in small towns to

keep it out of the hands ofGerman forces.

1. We can infer from the text that_______.

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D. Mona Lisa does not look out of date though painted 500 years ago

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 lovedit greatly and always kept itin ashade.

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

D. King FrancisIbought it and then returned it to Italy.

3. Choose the right orderabout the happenings onto the MonaLisa._____

a. It was stolen from theLouvre.

b. Its painter sold it to King FrancisⅠ .

c. Its stateof health was checked.

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

c. It was hidden andprotected against Germans.

A. b,a,d,c,e

B. d,e,c,b,a

C. d,a,c,c,b

D. b,c,a,d,e

3.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 tobe stolen again when it's under repair

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

D. expertsaren't sure about the materials or the chemical state of its oil paints

考点:历史文化类阅读
题型:阅读理解

一质点沿直线ox做加速运动,它离开O点的距离随时间t的变化关系为x=5+2t3,其中x的单位是m,t的单位是s,它的速度v随时间t的变化关系是v=6t2,其中t的单位是s。设该质点在t=0到t=2s间的平均速度为v1,t=2s到t=3s间的平均速度为v2,则[ ]

A.v1=12m/s v2=39m/s

B.v1=8m/s v2=38m/s

C.v1=12m/s v2=19.5m/s

D.v1=8m/s v2=13m/s

题型:阅读理解

关节活动范围分为____和____两种。

题型:阅读理解

患者,男性,30岁。患左髋关节结核半年,未曾治疗。X线检查发现髋关节破坏明显,全身中毒症状严重。治疗宜()

A.绝对卧床休息

B.局部制动

C.病灶清除加给予抗结核药物

D.功能锻炼,防止关节强直加给予抗结核药物

E.给予抗结核药物加局部制动

题型:阅读理解

拉西环的直径()高度。

A.大于

B.小于

C.等于

D.近似于

题型:阅读理解

开停换热器时,不应将蒸气阀门和加热器介质阀门开的太猛,否则,容易造成外壳与列管伸缩不一,产生热应力,使局部焊缝开裂或管子胀口松弛。

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