【C2】A.groundB.accountC.lightD.consideration
【C2】
A.ground
B.account
C.light
D.consideration
【C2】
A.ground
B.account
C.light
D.consideration
Many people believe the glare(耀眼的强光)from snow causes snowblindness. Yet, dark glasses or not they find themselves suffering from headaches and watering eyes, and even snowblindness, when exposed to several hours of "snow light". The United States Army has now determined that the glare from snow does not cause snowblindness in troops in a snow-covered country. Rather, a mans eyes frequently find nothing to focus on in a broad expanse of a snow-covered area. So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and the eyeballs become sore and the eye muscle aches. Nature balances this annoyance by producing more and more liquid which covers the eyeballs. The liquid covers the eyeballs in increasing quantity until vision blurs(模糊). And the result is total, even though temporary, snowblindness. Experiments led the Army to a simple method of overcoming this problem. Scouts(侦察兵)ahead of a main body of troops are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark-colored objects ahead on which they too can focus. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop searching through the snow-blanketed landscape. By focusing their attention on one object at a time, the man can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white area is overcome. Question: The first paragraph is mainly concerned with______.
A.snow glare and snowblindness
B.the whiteness from snow
C.headaches, watering eyes and snowblindness
D.the need for dark glasses
As she walked round the huge department store, Edith reflected how difficult it was to choose a suitable Christmas present for her father. She wished that he was as easy to please as her mother, who was always【C1】______with perfume. Besides, shopping at this time of the year was a most disagreeable experience: people【C2】______on your toes, poked you with their elbows and almost knocked you over in their haste to get to a bargain ahead of you. Partly to have a rest, Edith paused in front of a counter where some attractive ties were【C3】______. "They are real silk," the assistant assured her, trying to tempt her. "Its【C4】______no doubt the price". But Edith knew from past experience that her choice of ties【C5】______ever pleased her father. She moved on reluctantly and then quite by chance, stopped【C6】______a small crowd of men had gathered round a counter. She found some good quality pipes on sale—and the prices were very【C7】______. Edith did not hesitate for long: although her father only smoked a pipe 【C8】______, she knew that this was a present which was bound to please him. When she got home, with her small but【C9】______present concealed in her handbag, her parents were already at table having supper. Her mother was in a especially cheerful【C10】______, "Your father has at last decided to stop smoking," she informed her daughter.
【C1】
A.delighted
B.curious
C.anxious
D.fond
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