SmalldiscoveriesinIndonesiaarecausingastirinthesciencew...
问题详情:
Small discoveries in Indonesia are causing a stir in the science world. Researchers have unearthed(挖掘) tiny bones that they believe belong to an entirely new human species. If that’s true, it will change how we think about our ancestors.
Clues that the little people may have lived long ago were first revealed last year in the scientific journal Nature. Scientists said that they had found the bones of a three-foot-tall female on the island of Flores, in Indonesia. When they looked more closely, they saw that the nearly complete skeleton(骨骼) belonged to a full-grown adult. Researchers named her Hobbit, after the tiny heroes of the Lord of the Rings books.
Now the team is saying it has unearthed even more pieces of the puzzle, including a jawbone and parts of arms, legs and hands form several individuals, as well as stone tools. They reported their find in Nature this month. “The new evidence makes it very clear that these people are a new species, distinct from modern humans,” Peter Brown, a scientist on the team, said. They named these ancient humans Homo floresiensis.
Brown says that these little people lived as recently as 12,000 years ago. If Homo floresiensis was a different species from modern humans, that would make our family tree bigger than we knew. It means, says Brown, that “until recently, a relative shared the planet with us.”
Many scientists think a new species is unlikely. Some argue that the bones must have belonged to modern humans whose small size was the result of a genetic problem.
Daniel E. Lieberman, a scientist at Harvard University, thinks that the debate over the discovery is healthy. He believes that the questions and arguments raised by critics will help us learn more about these unusual skeletons. “Disagreement is an important part of the scientific process,” Lieberman said. “As far as I’m concerned, the story’s only just begun.”
1.Researchers name the skeleton Hobbit because ________.
A.it is a figure described in the Lord of the Rings
B.it resembles the tiny heroes in a set of books
C.it proves to be a full – grown adult
D.it belongs to ancient human species
2.Small discoveries in Indonesia are important because .
A.they are revealed in the scientific journal Nature
B.they are made by Peter Brown, a famous scientist
C.they are about ancestors of modern humans
D.they might provide new evidence for human study
3.According to Daniel E. Lieberman, .
A.Homo floresiensis doesn’t exist B.disagreement leads to further research
C.the investigation hasn’t begun yet D.our family tree is bigger than we knew
4.Which of the following might be the best title of the passage?
A.Comparison between Different Peoples
B.Arguments over Human Origin
C.Discovery of a Possible New Human Species
D.History of Indonesian People
【回答】
BDBC
知识点:阅读理解
题型:未分类
-
(2010·福建高考)入海河流三角洲的土地利用类型受河流淡水和海洋咸水的共同影响。某三角洲面积增长较快,该三...
问题详情: (2010·福建高考)入海河流三角洲的土地利用类型受河流淡水和海洋咸水的共同影响。某三角洲面积增长较快,该三角洲地区2007年土地利用类型的构成如下表所示。读表,完成11~12题。旱地林草地盐荒地滩涂其它合计占总面积比例(%)171232182110011.该三角洲地...
-
_____________,_____________。万里悲秋常作客,百年多病独登台。杜甫《登高》
问题详情:_____________,_____________。万里悲秋常作客,百年多病独登台。杜甫《登高》【回答】无边落木萧萧下,不尽长*滚滚来。知识点:其他题型:填空题...
-
某有机物结构简式为,下列关于该有机物的说法中不正确的是( )A.遇FeCl3溶液显紫*B.与足量的*氧化*溶...
问题详情:某有机物结构简式为,下列关于该有机物的说法中不正确的是()A.遇FeCl3溶液显紫*B.与足量的*氧化*溶液在一定条件下反应,最多消耗NaOH3molC.能发生缩聚反应和加聚反应D.1mol该有机物与溴发生加成反应,最多消耗1molBr2【回答】解析A项,有机物分子中存在*羟基,所以...
-
下列句子中没有运用拟人修辞手法的一项是( ) A.我们的春雁每天都要去玉米地作一次旅行,但绝不是偷偷摸摸进行的...
问题详情:下列句子中没有运用拟人修辞手法的一项是( ) A.我们的春雁每天都要去玉米地作一次旅行,但绝不是偷偷摸摸进行的。B.每次出发前,都有一场高声而有趣的辩论,而每次返回之前的争论则更为响亮。C.3月的大雁则不同。尽管它们在冬天的大部分时间里都可能受到*击,但...
相关文章
- 阅读并回答问题 WangLeiisaChinesetaxidriver.Hehasason.Hisnamei...
- BeijingOperaisthequintessence(精髓)ofChina.It'sthemostwel...
- Inhis1930essay“EconomicPossibilitiesforOurGrandchildren...
- InternetSecurityAwarenessMS-ISAC“KidsSafeOnline”2017Vir...
- Nickname:Hawaii’sIslandofAdventureSize:4,028squaremiles...
- 阅读与回答问题SixteenisaspecialageintheUnitedStates.There’soft...
- JackBainesisaself-mademillionaire,buthisbeginningswerev...
- “Dutch”expressionsheardinAmericanEnglishwerefirstusedi...
- UKPrimeMinisterDavidCameron’sMessageonChineseNewYear201...
- IncampusviolencecasesinBeijingduringthelastfiveyears,14...