【題目】

DNA is in every cell ( 細(xì) ) 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 ( 神秘密碼 ) of life. It not only decides your gender ( 性別 ) 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 ( 樣本) 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 ( 危地馬拉人 ). She expected to share DNA with 54% of Native American people, but she was surprised to nd 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 ( 課程 ) in the future. "This is not a lesson they will forget anytime soon," she said.

1Which 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 nd your relations with people in other parts of the world.

2Guzman shares DNA with people in .

A.AfricaB.AustraliaC.EuropeD.Asia

3What 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.

【答案】

1C

2D

3B

【解析】

短文主要講述了人類的DNA,介紹了亞特蘭大科雷塔·斯科特·金年輕女性領(lǐng)導(dǎo)力學(xué)院的20名學(xué)生通過(guò)DNA測(cè)試明白了世界上的每個(gè)人都與其他人聯(lián)系在一起。

1

推理判斷題,根據(jù)“DNA is the mysterious code ( 神秘密碼 ) of life. It not only decides your gender ( 性別 ) and appearance, but also tells you about your family history, as well as your relations with people in other parts of the world.DNA是生命的神秘密碼。它不僅決定你的性別(性別)和外貌,還會(huì)告訴你你的家族史,以及你與世界其他地方的人的關(guān)系!笨芍x項(xiàng)ABD正確;根據(jù)“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,我們沒(méi)有與其他人分享的0.5%是讓你與眾不同的一小部分。”故選項(xiàng)C錯(cuò)誤,故選C。

2

細(xì)節(jié)理解題,根據(jù)“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歲的埃利亞內(nèi)德·古茲曼(Elianed Guzman)除了知道他們來(lái)自墨西哥外,對(duì)她的家人知之甚少。她驚訝地得知,她也與中國(guó)和日本的人分享了DNA。”可知是中國(guó)人和日本人,那么應(yīng)該在亞洲,故選D。

3

細(xì)節(jié)理解題,根據(jù)“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!币约皝喬靥m大科雷塔·斯科特·金年輕女性領(lǐng)導(dǎo)力學(xué)院的20名學(xué)生通過(guò)DNA測(cè)試結(jié)果可知世界上的每個(gè)人都與其他人聯(lián)系在一起,故選B。

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