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请阅读 Passage 2,完成小题。
Passage 2
Several research teams have found thatnewborns prefer their mothers' voices over those of other people. Now a team ofscientists has gone an intriguing step further: they have found that newbornscry in their native language. "We have provided evidence that languagebegins with the very first cry melodies," says Kathleen Wermke of theUniversity of Wurzburg, Germany, who led the research.
?"The dramatic finding of this study isthat not only are newborns capable of producing different cry melodies, butthey prefer to produce those melody patterns that are typical for the?ambientlanguage they have heard during their fetal life, within the lasttrimester," said Wermke. "Contrary to orthodox interpretations, thesedata support the importance of human infants' crying for seeding languagedevelopment."
???Ithad been thought that babies' cries are constrained by-their breathing patternsand respiratory apparatus, in which case a crying baby would sound like acrying baby no matter what the culture is, since babies are anatomically identical."The prevailing opinion used to be that newborns could not activelyinfluence their production of sound," says Wermke. This study refutes thatclaim: since babies cry in different languages, they must have somecontrol?? (presumably unconscious) overwhat they sound like rather than being constrained by the acoustical propertiesof their lungs, throat, mouth, and larynx. If respiration alone dictated what a crysounded like, all babies would cry with a falling-pitch pattern, since that'swhat happens as you run out of breath and air pressure on the throat'ssound-making machinery decreases. French babies apparently didn't get thatmemo. "German and French infants produce different types of cries, eventhough they share the same physiology," the scientists point out."The French newborns produce ‘nonphysiological' rising patterns," showingthat the sound of their cries is under their control.
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细节题。根据“scientists thought that babies became capable of vocal imitation noearlier than 12 weeks of age”可知,A项说法错误。根据“We have provided evidence that language begins with the very firstcry melodies”及后文可知,Kathleen Wermke的研究是用婴儿哭声声调的不同来说明婴儿语言的习得可能在子宫中就开始了,婴儿的哭声可能就是他们早期语言习得的体现。B项说法正确。根据“That acquisition,it is now clear, begins months before birth,probablyin the third trimester”可知,C项与原文不符。D项在文中直接进行了说明,不符合题目要求。故本题选B。
《义务教育数学课程标准(2011年版)》强调,课程内容要反映社会的需要、数学的特点,要符合学生的认知规律。课程内容的组织要重视过程,处理好()的关系。
设α是某一方程组的解向量,k为某一常数,则kα也为该方程组的解向量。( )
案例:
在有理数运算的课堂教学片段中,某学生的板演如下:
针对该学生的解答,教师进行了如下教学:
师:请仔细检查你的演算过程,看是否正确无误?
生:好像正确吧。
请分析例题1、例题2中每一步运算的依据。(10分)
初中数学课程是一门国家课程,其主要内容包括课程目标、教学内容、教学过程和( )等
教师职业道德区别于其他职业道德的显著标志就是( )。
对高中数学的评价,下列说法错误的是( )。