题目

共用题干第一篇
Walking to Exercise the Brain
Do you think sitting and studying all the time will improve your grades?Think again.Getting some exer-
cise may help,too.
New research with old people suggests that taking regular walks helps them pay attention better than if
they didn't exercise.
Previous research had shown that mice learn,remember,and pay attention better after a few weeks of
working out on a running wheel.Mice that exercise have greater blood flow to the brain than those who don't.
Their brain cells also make more connections.
Neuroscientists(神经科学家)from the University of Illinois at Urbana Champaign wanted to find out if
the same thing is true for people.First,they measured the physical fitness of 41 adults,ages 58 to 77,after
each person walked 1 mile.Then,participants looked at arrows on a computer screen and had to use computer
keys to show which way one particular arrow was pointing.
Adults who were physically fit were faster at the arrow task,and their answers were just as accurate as
their less-fit peers,the researchers found.The fitter participants also had more blood flow to a part of their
brain responsible for paying attention and making decisions.
In a second study , 15 elderly people who completed a 6-month aerobic-training(有氧运动)course were
faster at attention tasks compared with 14 seniors who just did stretching and toning exercises(韵律操)for
the same amount of time.
So,even going for a walk every 2 or 3 days for just 10 to 45 minutes can help.That should be good news
for the elderly.
The effects of exercising on the brains of younger people haven't been studied yet. Still,it can't hurt to
take occasional breaks and go for a walk or run around with friends.Whatever you do,though,don't try to
read and walk at the same time.You could end up hurting yourself! It is suggested in the last paragraph that people should______________.A:run around once a weekB:not read and walk at the same timeC:go for a walk every dayD:not hurt their friends while exercising

相关标签: 韵律操   有氧运动   科学家  

提示:未搜索到的试题可在搜索页快速提交,您可在会员中心"提交的题"快速查看答案。
答案
查看答案
相关试题
二、考题解析【教学过程】(一)开始部分1.课堂常规:体委整队,报告人数,师生问好,教师简要介绍教学内容,检查服装,安排见习生。导入:今天我们首先看一段视频,大家看到里面讲的内容是什么?看完同学们告诉老师看到了谁?对,同学们看到的是我国在大阅兵时候的一段视频,视频中队伍的变化多种多样,大家看到后都很兴奋。那我们也一起来感受一下吧,今天我们就来学习队列队形中的分队走和合队走。(二)准备部分1.图形跑方法:全班同学成一路纵队,教师领跑,在跑的过程中变换不同的图形,如:三角形、圆形、正方形等,同时教师需要通过语言调动学生的积极性。组织教学:在课前画好的区域内进行。2.配乐韵律操开合运动、踢腿运动、侧展运动、体转运动、跳跃运动。组织教学:四列横队体操队形,教师边做示范,边提示动作要领,语言激励学生,及时表扬鼓励。要求:拍节准确,动作到位,节奏感强。(三)基本部分1.示范提问:大家观察示范小组在分队走和合队走的过程中变换形式是怎样的?学生回答:分队走由一队分成了两队,合队走由两队合成了一队。组织教学:四列横队,前两排蹲下。2.讲解一路纵队中场行进,听到分队走的口令第一名同学左转弯,第二名同学右转弯,后面同学依次跟进,成二路纵队沿左右边线绕场进行。即将相遇,听到合队走的口令时,左路同学左转弯,右路同学右转弯并依次插入左路学生之后,成一路纵队进行。3.练习(1)分队走练习。将学生一路纵队在中场依次排开,根据老师口令进行分队走练习。(教师喊“齐步—走”的时候学生开始向前行进,当教师喊到“分队—走”的时候,学生按要求分成两队进行分队走练习。)(2)合队走练习。将学生分为两组在场地两边排开,根据老师口令进行合队走练习。(教师下达“齐步—走”的时候学生开始向前行进,当走至面对面时,教师下达“合队—走”口令,学生按要求合成一队进行合队走练习。)4.优生展示:教师选出优生进行展示师生进行自评、互评。(四)结束部分1.放松活动—配乐放松操组织教学:四列横队体操队形。要求:放松活动,身心充分放松。2.课堂小结:教师总结学练情况,表扬先进,激励全体学生。3.宣布下课、师生再见、回收器材。【答辩题目解析】1.本节课的重难点是什么?2.如何对队形队列进行教学计划的设计?
小学体育《助跑投掷垒球》一、考题回顾二、考题解析【教学过程】(一)开始部分1.课堂常规:体委整队,报告人数,师生问好,教师简要介绍教学内容,检查服装,安排见习生。导入:同学们,你们有没有过掷石子打水漂的经历啊?我看有很多同学玩过,今天啊,让我们重温一下当时玩的经历,学习助跑投掷垒球。2.队列队形练习:原地三面转法练习。组织教学:四列横队。要求:队列整齐,步伐一致。(二)准备部分1.游戏“长江黄河”方法:把游戏者分成人数相等的两队,面对面站在中线的两边,一队起名叫“长江”,另一队叫“黄河”,各队记住自己的队名。当教师发出“黄河”的口令时,“黄河”队马上转身往自己的场地跑,“长江”队立刻追击,如在限制线内追上者得一分。做5遍,游戏结束,以累积分多的队为胜。组织教学:面对站立,相距一步。2.配乐韵律操伸展运动、下蹲运动、体侧运动、体转运动、腹背运动、全身运动、跳跃运动、整理运动。组织教学:四列横队体操队形,教师边做示范,边提示动作要领,语言激励学生,及时表扬鼓励。要求:拍节准确,动作到位,节奏感强。3.专项练习两人一组压肩。(三)基本部分1.示范提问:引球到用力时的手臂姿势是怎样的?步伐是怎样的?学生回答:手臂后引,最后是交叉步与发力衔接。3.讲解动作要点:助跑有节奏,迈脚的同时向后引球,交叉上步、转体、挥臂等动作要连贯,将球经肩上全力投出。4.练习(1)原地徒手练习,体会动作结构和发力。组织教学:学生成体操队形散开。(2)徒手上步练习,初步体会步伐与用力的衔接。组织教学:学生稍微加大前后距离,教师通过数字口令进行协调。纠错:肘关节不要外展,投掷时,另一手托投掷臂的肘关节,并提示学生不要转肩。(3)持轻物助跑练习,体会连贯动作。组织教学:分为四组,手持沙包,按照教师口令依次进行投掷。纠错:出手角度不要过低,每次投掷时给自己设定一个目标,多次练习体会。上下肢配合要协调,体会身体不同部位用力感觉。(4)持垒球助跑练习,体会完整动作,帮助建立动作意识。组织教学:分为四组,手持垒球,按照教师口令依次进行投掷。纠错:投掷步与发力衔接不好,多次练习体会最后的衔接动作。5.优生展示组织教学:以体育小组为单位,自由选举两名代表进行展示,每组做完后采用不同形式进行评价。6.教学比赛—掷远比赛组织教学:以体育小组为单位,分别以远度线标准为例,分别从远度达标和累积远度两个评价标准去计算成绩。(四)结束部分1.放松活动—放松操组织教学:四列横队体操队形要求:放松活动,身心充分放松。2.课堂小结:教师总结学练情况,表扬先进,激励全体学生。3.宣布下课、师生再见、回收器材。【答辩题目解析】1.助跑投掷垒球技术重难点是?2.排球正面双手垫球动作要点是什么?
共用题干
第一篇
Walking to Exercise the Brain
Do you think sitting and studying all the time will improve your grades?Think again.Getting some exer-
cise may help,too.
New research with old people suggests that taking regular walks helps them pay attention better than if
they didn't exercise.
Previous research had shown that mice learn,remember,and pay attention better after a few weeks of
working out on a running wheel.Mice that exercise have greater blood flow to the brain than those who don't.
Their brain cells also make more connections.
Neuroscientists(神经科学家)from the University of Illinois at Urbana Champaign wanted to find out if
the same thing is true for people.First,they measured the physical fitness of 41 adults,ages 58 to 77,after
each person walked 1 mile.Then,participants looked at arrows on a computer screen and had to use computer
keys to show which way one particular arrow was pointing.
Adults who were physically fit were faster at the arrow task,and their answers were just as accurate as
their less-fit peers,the researchers found.The fitter participants also had more blood flow to a part of their
brain responsible for paying attention and making decisions.
In a second study , 15 elderly people who completed a 6-month aerobic-training(有氧运动)course were
faster at attention tasks compared with 14 seniors who just did stretching and toning exercises(韵律操)for
the same amount of time.
So,even going for a walk every 2 or 3 days for just 10 to 45 minutes can help.That should be good news
for the elderly.
The effects of exercising on the brains of younger people haven't been studied yet. Still,it can't hurt to
take occasional breaks and go for a walk or run around with friends.Whatever you do,though,don't try to
read and walk at the same time.You could end up hurting yourself!
The first study on 41 elderly people found______________.
A:the less-fit participants did arrow tasks faster
B:the fitter participants did arrow tasks faster
C:the less-fit participants gave more accurate answers
D:the fitter participants gave more accurate answers
联系我们 会员中心
返回顶部