6. According to the study described in Paragraph 4, we can learn that　.

　　A. ancient dogs entered North America between 1450 and 1675 A. D.

　　B. the 11 bones of ancient dogs are not from native American dogs

　　C. the bones discovered by the gold miners were from North American wolves

　　D. the bones studied were not from dogs brought into North America by Europeans

　　【解析】选D。细节理解题。根据“They found the dogs all lived between the years of 1450 and 1675 A. D. , before Vitus Bering and Aleksey Chirikov who were the first known Europeans to view Alaska in 1741. . . ”可判断出被研究的骨头不是欧洲人带到北美的狗的骨头。所以D正确。

　　7. What can we know from the passage?

　　A. Native Americans domesticated local wolves into dogs.

　　B. Scientists discovered some ancient dog remains in the 1920s.

　　C. Latin America’s dogs are different from North America’s in genes.

　　D. Ancient dogs entered North America across the Bering Land Bridge.

　　【解析】选D。细节理解题。根据第一段“When people first walked across the Bering Land Bridge thousands of years ago, dogs were by their sides, according to a study published in the journal Science. ”可知D正确。

　　8. What does the passage mainly talk about?

【2015届高考英语一轮复习课时作业34 Unit 4（人教版选修7）】相关文章：

★ 河南省商丘市第三高级中学2013届高考英语第二轮专项复习《名词》教学设计（一）

★ 2017届高考英语二轮复习课时训练：21（含解析）

★ 2014届高考英语一轮复习课时作业(三十六)选修6Module 6《War and Peace》（外研版）

★ 2017届高考英语二轮复习课时训练：20（含解析）

★ 四川省2016届高考英语一轮复习课时作业（23） Module 5 A Trip Along the Three Gorges 外研版必修4

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文：名校模拟（含解析）

★ 2014届高考英语一轮复习必修1参考答案（外研版）

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 2 The United Kingdom

★ 2017届高考英语（江苏专用）二轮复习高考单词5大记忆法课件：4.联想记忆法

★ 【浙江专用】2014届高考英语一轮复习课时作业(十五)必修3Unit 5《Canada—“The True North”》