Edison often said, “1 will discover what the world needs, then I will try to invent it.”  It is true that he did more than any other man of his time in inventing things. He made more than one thousand inventions in his life and all these have changed our way of living. Edison was one of the greatest inventors in the world. When Edison died in 1931, someone said people should turn off all the lights in their homes, streets and factories for several minutes in honor of this great man. Of course it was impossible to do so. And this shows what Edison's inventions mean to people's life.

1.All the things Edison invented were _________ people needed at that time.

2.Edison _________in inventing new things.

3.Edison had _________ inventions in all his life.

4.Edison was dead for nearly _______ years.

5.It was __________ to turn off all the lights in honor of the greatest inventor.

In every little girl’s toy box. there might be a Barbie Doll. Barbie is 50 years old this, year. It was designed(设计)in 1959 by an American businesswoman named Ruth Handler. She and her husband Elliott started the toy company Mattel. She named the new doll after their daughter Barbara. The first Barbie Doll appeared at the toy fair（交易会）New York on March 9th, 1959. This date is used as Barbie’s birthday.
Mattel sold three hundred thousand Barbie Dolls in the first year at a price of three dollars. Today, a fifty-year-old Barbie in good condition might cost more than twenty-seven thousand dollars. Mattel says 90% of the girls in the United States aged from three to ten own at least one Barbie Doll. And girls aged three to six own an average（平均）of about twelve.
When Mattel created Barbie Dolls half a century ago, they never thought this doll would become a legend. Now Barbie Dolls are famous all over the world. They are sold in one hundred and fifty countries, and every second three Barbie Dolls are sold around the world.
【小题1】Who designed the first Barbie Doll in 1959?