题目

The 6-year-old girl, Ruby, lived in New Orleans, Louisiana. She was supposed to go to school close to her home. But all the students in that school were white. Ruby was black. School leaders didn’t want to accept her, so they made Ruby take a hard exam and hoped she would fail. But Ruby was so smart that she passed the test easily and was finally allowed to go to the school.Ruby was excited about her new school. But when she and her mom arrived on her first day, she saw a crowd of angry people shouting very cruel things at the gate. They did not want a black child to attend the school. “I 3.世界人口在以每年八千万的速度增长。The population of the world                         80        every  year.