Many people have never heard of the early black American scientist, Benjamin Banneker. Yet he was very important in American history.

  Benjamin Banneker was born on November 9 , 1731. Benjamin didn't get much school education while growing up. Most of what he learned came from his own curiosity. He wanted to learn about everything he saw.

  At age 21 ,Benjamin borrowed a pocket watch from one of his neighbors. With great care he took the watch apart piece by piece. He drew pictures of each piece. When the pictures were finished,he put the watch back together perfectly. Then he studied his drawings. He took pieces of wood and carved an exact duplicate(复制品)of each piece. He put the pieces together and created a wooden clock. The clock kept perfect time for over forty years.

  Benjamin Banneker became well-known for his almanacs(年历).He loved studying events, stars, and facts of all kinds. He put all of his collected information into a book called an almanac. He could tell people just exactly what time the sun would rise and set years ahead of time. Many farmers used his almanac to plant their crops. Today, farmers still use a Farmer's Almanac for planting.

Benjamin Banneker died on October 9 , 1806. Besides he was an important scientist in American history,he also fought for the freedom of slaves until his dying day.

根据短文内容,选择最佳答案。

(   ) 1. How old was Benjamin Banneker when

he passed away?

A.60. B.65.

C.70. D.75. 

(   ) 2. What's the meaning of the underlined word " curiosity"?

A.好奇心        B.破坏欲

C.自信心        D.创造性

(   ) 3. What was different about the clock Benjamin Banneker made?

A.    It was larger than usual.

B.    Its parts were made of wood.

C.    It is still running today.

D.    It was digital.

(   ) 4. What type of book did Benjamin Banneker create?

A.    Farmer's almanac.

B.    Farmer's law.

C.    Dictionary.

D.    Textbook.

(   ) 5. Why did the writer think Benjamin Banneker was a scientist?

A.    Because he invented many things.

B.    Because he invented a special clock.

C.    Because today people still use his almanac for planting.

D.    Because today people still use his works for doing many things.

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