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Elizabeth Freeman was born about 1742 to African American parents who were slaves. At the age of six months she was acquired, along with her sister, by John Ashley, a wealthy Massachusetts slaveholders. She became known as “Mumbet” or “Mum Bett.”

For nearly 30 years Mumbet served the Ashley family. One day, Ashley’s wife tried to strike Mumbet’s sister with a spade. Mumbet protected her sister and took the blow instead. Furious, she left the house and refused to come back. When the Ashleys tried to make her return, Mumbet consulted a lawyer, Theodore Sedgewick. With his help, Mumbet sued(起诉) for her freedom.

While serving the Ashleys, Mumbet had listened to many discussions of the new Massachusetts constitution. If the constitution said that all people were free and equal, then she thought it should apply to her. Eventually, Mumbet won her freedom---- the first slave in Massachusetts to do so under the new constitution.

Strangely enough, after the trial, the Ashleys asked Mumbet to come back and work for them as a paid employee. She declined and instead went to work for Segdewick. Mumbet died in 1829, but her legacy lived on in her many descendants(后裔). One of her great-grandchildren was W.E.B. Du Bois, one of the founder of the NAACP, and an important writer and spokesperson for African American civil rights.

Mumbet’s tombstone still stands in the Massachusetts cemetery where she was buried. It reads, in part: “She was born a slave and remained a slave and remained a slave for nearly thirty years. She could neither read nor write, yet in her own sphere she had no superior or equal.”

51. What do we know about Mumbet according to Paragraph 1?

A. She was born a slave    B. She was a slaveholder

C. She had a famous sister   D. She was born into a rich family

52. Why did Mumbet run away from the Ashleys?

A. She found an employer   B. She wanted to be a lawyer

C. She was hit and got angry    D. She had to take care of her sister

53. What did Mumbet learn from discussions about the new consititution?

A. She should always obey her owners’ orders B. She should be as free and equal as whites

C. How to be a good servant      D. How to apply for a job

54. What did Mumbet do after the trial?

A. She chose to work for a lawyer    B. She found the NAACP

C. She continued to serve the Ashleys   D. She went to live with her grandchildren

55. What is the test mainly about?

A. A story of a famous writer and spokesperson B. The friendship between a lawyer and a slave

C. The life of a brave African American woman D. A trial that shocked the whole world

D

How fit are your teeth? Are you lazy about brushing them? Never fear: An inventor is on the case. An electric toothbrush senses how long and how well you brush, and it lets you track your performance on your phone.

The Kolibree toothbrush was exhibited at the International Consumer Electronics Show in Las Vegas this week. It senses how it is moved and can send the information to an Android phone or iPhone via a Bluetooth wireless connection.

The toothbrush will be able to teach you to brush right (don’t forget the insides of the teeth!) and make sure you’re brushing long enough. “It’s kind of like having a dentist actually watch your brushing on a day-to-day basis,” says Thomas Serval, the French inventor.

The toothbrush will also be able to talk to other applications on your phone, so developers could, for instance, create a game controlled by your toothbrush. You could score points for beating monsters among your teeth. “We try to make it smart but also fun,” Several says.

Serval says he was inspired by his experience as a father. He would come home from work and ask his kids if they had brushed their teeth. They said “yes,” but Serval would find their toothbrush heads dry. He decided he needed a brush that really told him how well his children brushed.

The company says the Kolibree will go on sale this summer, for $99 to $199, developing on features. The U.S. is the first target market.

Serval says that one day, it’ll be possible to replace the brush on the handle with a brushing unit that also has a camera. The camera can even examine holes in your teeth while you brush.

56. Which is one of the feature of the Kolibree toothbrush?

A. It can sense how users brush their teeth. B. It can track users’ school performance.

C. It can detect users’ fear of seeing a dentist. D. It can help users find their phones.

57. What can we learn from Serval’s words in Paragraph 3?

A. You will find it enjoyable to see a dentist.

B. You should see your dentist on a day-to –day basis.

C. You can brush with the Kolibree as if guided by a dentist.

D. You’d like a dentist to watch you brush your teeth every day.

58. Which of the following might make the Kolibree toothbrush fun?

A. It can be used to update mobile phones. B. It can be used to play mobile phone games

C. It can send messages to other users D. It can talk to its developers.

59. What is Paragraph 5 mainly about?

A. How Serval found out his kids lied to him.

B. Why Serval thought brushing teeth was necessary.

C. How Serval taught his kids to brush their teeth.

D. What inspired Serval to invent the toothbrush

60. What can we infer about Serval’s children?

A. They were unwilling to brush their teeth

B. They often failed to clean their toothbrushes.

C. They preferred to use a toothbrush with a dry head.

D. They liked brushing their teeth after Serval came home.

61. What can we learn about the future development of the Kolibree?

A. The brush handle will be removed.   B. A mobile phone will be built into it.

C. It will be used to fill holes in teeth   D. It will be able to check users’ teeth

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