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DNA is in every cell ( 细 胞 ) of our bodi...

DNA is in every cell ( ) of our bodies except for our red blood cells. It stores the information your body needs to make you who you are. Your DNA is 99.5% the same as everyone else on the planet. The 0.5% that we don't share with everyone else is the bit that makes you different.

DNA is the mysterious code ( 神秘密码 ) of life. It not only decides your gender ( 性别 ) and appearance, but also tells you about your family history, as well as your relations with people in other parts of the world.

Last fall, 20 students at Coretta Scott King Young Women's Leadership Academy in Atlanta learned more about who they are through a DNA test.

During their life sciences class, the girls took samples ( 样本) from their cheeks and sent them to Living DNA, a UKbased DNA testing company. From the test results, they learned about their ancestry ( 祖先 ) and made real-world connections to their races.

Lizbeth Islas, 12, learned about her family's Central American roots ( 根,根源 ) from her mother, who is Guatemalan ( 危地马拉人 ). She expected to share DNA with 54% of Native American people, but she was surprised to find that she also shared DNA with people living in Africa and Europe.

Elianed Guzman, 13, knew little about her family except that they were from Mexico. She was surprised to learn that she also shared DNA with people in China and Japan.

The girls gathered in small groups to wait for their results. Their reactions reached from confusion to surprise. The 13-year-old Amariah Caudle said she learned that "the color of your skin can't decide where you are from."

Diahan Southard, a manager from Living DNA, helped them understand the test results. "Does it change how you see yourself?" Southard asked.

"Now I know I have family from everywhere," said Jahtmya Phillips, 13. "Does it change how you see the girls around the table?" Southard asked. "We are all sisters," said Anike Akanni-Jenkins, 13.

Laura Pena, the school's class designer, said she hopes to add DNA testing to the school's ninth grade curriculum ( 课程 ) in the future. "This is not a lesson they will forget anytime soon," she said.

1.Which of the following about DNA is NOT TRUE according to the passage?

A.DNA decides your gender and appearance.

B.DNA can tell you about your family history.

C.99.5% of your DNA is different from other people.

D.DNA can find your relations with people in other parts of the world.

2.Guzman shares DNA with people in     .

A.Africa B.Australia C.Europe D.Asia

3.What did the students learn from the program?

A.People need to accept who they are.

B.Everyone in the world is connected to others.

C.We should learn more about our family history.

D.People's personalities can be explained by their roots.

 

1.C 2.D 3.B 【解析】 短文主要讲述了人类的DNA,介绍了亚特兰大科雷塔·斯科特·金年轻女性领导力学院的20名学生通过DNA测试明白了世界上的每个人都与其他人联系在一起。 1. 推理判断题,根据“DNA is the mysterious code ( 神秘密码 ) of life. It not only decides your gender ( 性别 ) and appearance, but also tells you about your family history, as well as your relations with people in other parts of the world.DNA是生命的神秘密码。它不仅决定你的性别(性别)和外貌,还会告诉你你的家族史,以及你与世界其他地方的人的关系。”可知选项ABD正确;根据“Your DNA is 99.5% the same as everyone else on the planet. The 0.5% that we don't share with everyone else is the bit that makes you different. 你的DNA和地球上其他所有人的DNA都是99.5%相同的,我们没有与其他人分享的0.5%是让你与众不同的一小部分。”故选项C错误,故选C。 2. 细节理解题,根据“Elianed Guzman, 13, knew little about her family except that they were from Mexico. She was surprised to learn that she also shared DNA with people in China and Japan. 13岁的埃利亚内德·古兹曼(Elianed Guzman)除了知道他们来自墨西哥外,对她的家人知之甚少。她惊讶地得知,她也与中国和日本的人分享了DNA。”可知是中国人和日本人,那么应该在亚洲,故选D。 3. 细节理解题,根据“Your DNA is 99.5% the same as everyone else on the planet.你的DNA和地球上其他所有人的DNA都是99.5%相同的。”以及亚特兰大科雷塔·斯科特·金年轻女性领导力学院的20名学生通过DNA测试结果可知世界上的每个人都与其他人联系在一起,故选B。
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