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He to hot summer we should wear dark glass ________ our eyes ________ In hot summer we should wear dark glass ________ our eyes ________ .

1. A.
   protecting; from being hurt
2. B.
   to protect; from hurting
3. C.
   to protect; from being
4. D.
   to protect; be hurt

The National Gallery of Art in Washington, D.C., is one of the world's greatest art museums. Millions of people have entered its doors to see paintings by the world's fine artists. But if these priceless masterpieces are to be preserved, the Gallery must protect them carefully. The Gallery's 135-man guard force has successfully prevented them from being stolen, but protecting the paintings from nature is a greater problem.

In past times, the owners of paintings did not protect them from damaging changes in humidity (湿度) and temperature. As a result, the life of these paintings were shortened. In the National Gallery, however, humidity and temperature are carefully controlled. The building is air-conditioned in summer and heated in winter. The air-conditioning and heating system are so important to the life of the painting that the Gallery has two of each system. If one should fail, the extra one can take over.

Light is another enemy of paintings. Ultraviolet rays (紫外线) in light cause paintings to fade (褪色).  Long ago, paintings often hung in dark churches and palaces. A coat of varnish (清漆) was a protection from the weak light. But when museums took over the care of many paintings, they were often hung in brighter light than before. Soon they were in danger of fading. The damaging effects of light were increased when the museums removed the varnish coating, yellowed with age.

To protect its paintings, the National Gallery put a special kind of glass in its skylights. This glass allows visible lights to enter the building but it keeps out harmful ultraviolet rays. The Gallery has also developed new and better varnishes which help to keep paintings from fading. Thanks to these new precautions, many of the world's greatest paintings are being well protected for future generations to enjoy.

1.The text mainly tells us about ______.

A．the guard force in the National Gallery

B．protecting great paintings from nature

C．priceless paintings of past times

D．the air-conditioning and heating systems in the National Gallery

2.The underlined word "precautions" in Paragraph 4 is closest in meaning to ______.  

A．decorations

B．problems

C．suggestions

D．applications

3.From the text we can infer that_______.

A．great artists painted in dark churches and palaces

B．you can touch these paintings while you are in the National Gallery

C．the care of the world's greatest paintings is both a big responsibility and a great challenge

D．the guard force in the Gallery has not done a good job

Susannah was a shy but clever girl. She had worn     1   for as long as she could remember. And again, for as long as she could remember, some of her classmates had always made fun of her. The worst thing was that Lewis    2   her “Four Eyes”. She acted like she didn’t     3    but in fact Susannah couldn’t stand it.
One day, the class went on a school outing to visit some famous     4   . The children were walking towards the caves when Lewis   5    . While falling, he got   6    of Susannah, who walked next to him, and both     7    down the hole.
They landed in a dark cave. Susannah and Lewis shouted for   8   , but no one came. The next morning they still hadn’t been found and Lewis continued shouting for help, but no       9        and he started feeling     10 .
It must have been noontime, because Susannah    11   that the ray of light just landed on the floor in front of her.   12   , she took a piece of wood that had fallen into the cave, and, using her glasses as a magnifying glass, she focused the ray of light onto the    13    . Now they had a torch. Lewis watched with surprise and    14    and off they went to explore the cave.
It took them some time, and they had to burn quite a few torches, but finally they found a way out. On top of hugs and cries of    15  , Lewis gave Susannah his heartfelt thanks.

One sunny afternoon, a seven-year-old girl went for a walk. She crossed a large area of grassland into the woods __36__ she realized that she was lost.
Sitting on a rock and __37__ what to do, she began crying. After a while, she__38__ to walk along a wide path lined with tall trees and thick bushes. __39__ it was getting dark, she saw a small, dark wooden house. She opened the door and __40__ stepped in. Suddenly, she heard a strange noise, and she ran out the door and back to the __41__. Cold and tired, she fell asleep near a __42__.
The girl’s parents were out and her dog, Laddy, was at home. Laddy __43__ that his Mistress（女主人）was in danger. He jumped __44__ a window, breaking the glass. He looked in the fields. But he couldn't find his mistress anywhere. However, from the ground came a __45__ scent (气味) as he lowered his head. He __46__ the scent and walked across the grassland. Barking __47__ into the air, the dog __48__ through the woods until he found the __49__ . But the girl was not there, so he headed back to the woods. Much to his __50__ , he saw his mistress’ blue shirt in the distance. He __51__ over some bushes and saw the little stream, where the girl was __52__.
When she opened her eyes and   53  her dog standing beside her, the girl said, “you   54   me, Laddy,” and she kissed him several times. Seeing their daughter and dog coming back, the parents burst into tears of     55 . That night Laddy had a Hero's supper: a huge meal of steak.