约1000字。

　　【图解教材】之文档：人教英语必修2 Unit 2 The Olympic Games
　　【思维导图】
　　【微试题】
　　1. Over 1 000 athlete s will _______________ the race.将有1 000多名运动员参加赛跑。
　　【答案】competed  against
　　2. You must ______ the task ____________ difficult.你必须承认这项任务是艰巨的。
　　【答案】admit to be
　　3. I __________ the old tyres ______ new ones.
　　我用新轮胎替换了旧轮胎。
　　【答案】replaced  with
　　4. [2014山东高考]阅读理解。
　　Elizabeth Freeman was bo rn abou t 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 Massach usetts 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 strimbet’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 wo n her freedom---- the first slave in Massachusetts to do so under the new constitution.
　　Strangely enough, after the trial, the Ashleys asmbet to co me back and work for them as a paid employee. She declined and instead went to work for Segdewicmbet died in 1829, but her legacy lived on in her many descendants(后裔).