1、Passage 4Do you know who Benjamin Banneker was and what he did? Benjamin Banneker was a
self-educated scientist at a time when most African Americans were slaves. Born a free black man
in the British Colony of Maryland in 1731, he received some formal education, but he mostly
borrowed books and taught himself science and mathematics. At 22, he borrowed a pocket watch,
and without any training, figured out how to carve a working wooden clock that chimed each hour. Because of this clock, he became well known and people would visit him just to see his creation.
Banneker ran his family farm from many years, but when he was in his late 50s, a neighbor‘s
son lent him a telescope. He became interested in astronomy, the study of the planets and stars,
and again taught himself a new science. He made calculations of tides, sunrises and sunsets, and
even predicted an eclipse. For several years he published an almanac of these calculations. Today,
he is best known for publishing six almanacs, called ―Benjamin Banneker‘s Almanac‖ between
1792 and 1797.
In the 1790s, Banneker also helped survey and lay out the land for Washington, D. C., which
became the nation‘s capital. For a look at Banneker‘s amazing life, visit the Benjamin Banneker
Historical Park & Museum in Ellicott City, Maryland.
1. What was the status of most African-Americans at Banneker‘s time?

1、1、

78.The taxi driver had to( )to the side of the road when a policeman began to follow him for speeding.

2、14、

8、13、

10.The fact that something is cheap doesn‘t( )mean it is of low quality.

108.You can‘t( )him in his knowledge of physics.

10、19、

1、Passage 19Throughout her working life, a ship — like a motorcar — must be serviced regularly if she
is to remain efficient. After a period at sea she must be overall checked and any necessary repairs
must be made. There are also instances when a ship must be converted from being one kind of
carrier to another. Most of today‘s oil, for example, is carried by huge super-tankers. The smaller
tankers, many of which are still in good condition, can be converted into bulk carriers（散货船）
for the transport of sugar, coal or ore.
Conversion or repair work is carried out in a dry dock, a huge hole cut into the ground and
lined with concrete. At one end are large gates separating the dock from the river or sea. When
these gates are opened, water pours into the dock and fills it. A ship can then enter the dock, where
it is carefully fastened in an upright position.When the ship is positioned inside the dock, the gates are closed and the water is pumped out.
The vessel slowly settles on to wooden blocks. Wooden supporters are put in position between the
ship and the sides of the dock to prevent her from rolling over. Great care is taken to make sure
that the ship rests evenly on the keel（龙骨）blocks to prevent damage being done.
As soon as the ship is firmly positioned, repair or conversion work can begin on her body or
superstructure.
1. According to the passage, in what way is a ship like motorcar?

8、16、