Nature has devised many ways to protect
creatures’ eyes. The most common protection is the eyelid--a fold of skin that
closes over the eye, protecting it from damage. Eyelashes are useful for keeping
out dust and other irritants, and tears wash away any particles that get through
the other defenses.
Some creatures, including most birds, have
three eyelids. The upper and lower lids act like human lids and keep out twigs,
dirt and sand. The third eyelid, however, is a semitransparent tissue that
crosses over the eye from the inside corner to the outside corner. Because of
this protective membrane, birds seldom have to blink. They close their eyes only
when they go to sleep. In ducks, this third eyelid self as an underwater diving
mask that helps the ducks find food.
Most fish and snakes have
no eyelids at all. Instead, a har
A. to keep windblown sand out of its eyes
B. that get in the way of its sight
C. to help it see better
D. to attract other camels
[单项选择]
Passage Three
Oceanography has been defined as "The application of all sciences to the study of the sea".
Before the nineteenth century, scientists with an interest in the sea were few and far between. Certainly Newton considered some theoretical aspects of it in his writings, but he was reluctant (不愿意) to go to sea to further his work.
For most people the sea was remote, and with the exception of early intercontinental travellers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question "What is at the bottom of the oceans" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile (起伏形状) of the route to estimate the length of cable that had to be manufactured.
It was to Maury of the U. S.
A. the beginnings of oceanography
B. the laying of the first undersea cable
C. the investigation of ocean depths
D. the early intercontinental communications
[单项选择]
What has influenced the way of teaching specialist English in schools A. The knowledge of teachers. B. The behaviors of students. C. The principles of schools. D. The introduction of books.
[单项选择]He ______people with less knowledge than he has.
[A] looks up [B] looks down upon
[C] looks at [D] look after
[单项选择] Passage Three
No artist has affected modern art more
than Pablo Picasso. The thousands of masterpieces he created changed the way
people thought about art. Picasso was perhaps the most talented and successful
artist who ever lived.
Pablo Picasso was born in 1881 in a
small town on the southern coast of Spain. His father was a painter who taught
art. Picasso showed exceptional talent at an early age and, by the time he was
in his teens, painted better than his father or any of the local art teachers.
At sixteen, Picasso was sent to the Royal Academy of Madrid, where students drew
from plaster casts and copied works of the old masters. Picasso felt these
assignments were pointless and began to work on his own. Picasso’s father soon
became angry with his son’s rebellious behavior, long hair, and strange clothes.
He believed that Picasso was w
A. He was the most successsful artist in history.
B. He had exceptional talent in art.
C. His paintings changed people’s idea about art.
D. He worked continuously.
[单项选择] Passage Three
An employer has several choices he can
consider when he wants to hire a new employee. First, he may look within his own
company. But if none of the present employees are suitable for the position, he
will have to look outside the company. If his company has a personnel office, he
can ask them to help find qualified applicants.
There are other
valuable sources the employer can use, such as employment agencies, professional
societies and so on. He can also advertise in the newspapers and magazines and
ask prospective candidates to send in resumes.
The employer has
two kinds of qualifications to consider when he wants to choose from among
applicants. He must consider both professional qualifications and personal
characteristics. A candidate’s professional qualifications include his
education, experience and skills. These can
A. has worked for two months
B. has had college education
C. is getting training
D. is fond of sports
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