ArecentexperimentheldinJapanshowsthatitisalmostimpossib...
問題詳情:
A recent experiment held in Japan shows that it is almost impossible for people to walk exactly straight for 60 metres.Tokyo University of Agriculture and Technology found 20 healthy men and asked them to walk as straight as possible to a target 60 metres away at the normal speed. Each man had to walk on white paper fixed flat to the floor wearing wet colored socks.The footprints revealed that all walked in a winding rather than a straight line.Researchers found that people readjust the direction of walking every few seconds.The amount of the winding differed from subject to subject.This suggests that none of us can walk in a strictly straight line.We walk in a winding way mainly because of a slight structural or functional imbalance of our limbs (四肢).Although we may start walking in a straight line, several steps afterwards we have changed direction.
Eyesight helps us to correct the direction of walking and leads us to the target.Your ears also help you walk.After turning around a lot with your eyes closed, you can hardly stand still, let alone walk straight.
It’s all because your ears help you balance.Inside your inner ear there is a structure which contains liquids.On the sides of the organ are many tiny hair-like structures that move around as the liquid flows.When you spin (旋轉) the liquid inside also spins.The difference is that when you stop, the liquid continues to spin for a while.Dizziness (眩暈) is the result of these nerves in your ear.When you open your eyes, although your eyesight tells you to walk in a straight line, your brain will trust your ears more, thus you walk in a curved line.
1.The experiment held in Japan proved that _______.
A.the participants kept readjusting their direction of walking
B.all the participants (參與者) had a good sense of direction
C.the experiment was done in different ways
D.none of the participants finished the 60 metres
2.What helps to readjust our walking direction?
A.Limbs. B.Ears. C.Eyes. D.Footprints.
3.The underlined word “subject” in Para. 1 refers to ________.
A.a person with a functional imbalance
B.a person chosen to be studied in an experiment
C.the subject one studies at school
D.the direction of walking
4.The purpose of writing the article is to ________.
A.prove that ears can help us to walk straight
B.explain why we can hardly walk in a strictly straight line
C.point out the importance of noticing everyday science
D.tell us if we try, we can walk in a straight line.
【回答】
ACBB
知識點:閱讀理解
題型:未分類
-
早春二月的某一天,A市的平均氣溫為-5℃,B市的平均氣溫為3℃,則當天B比A市的平均氣溫高
問題詳情:早春二月的某一天,A市的平均氣溫為-5℃,B市的平均氣溫為3℃,則當天B比A市的平均氣溫高____________℃.【回答】8提示:3-(-5)=8.知識點:有理數的加減法題型:填空題...
-
美是一種感覺,當人體下半身長與身高的比值越接近0.618時,越給人一種美感.某女士身高165cm,下半身長x與...
問題詳情:美是一種感覺,當人體下半身長與身高的比值越接近0.618時,越給人一種美感.某女士身高165cm,下半身長x與身高l的比值是0.60,為儘可能達到好的效果,她應穿的高跟鞋的高度大約為( )(A)4cm (B)6cm (C)8cm (D)10cm【回答】...
-
簡答題(選做一題)(5分)20.閱讀下面《紅樓夢》選段,依據原著故事情節,回答問題。一句話未了,忽見一個老婆子...
問題詳情:簡答題(選做一題)(5分)20.閱讀下面《紅樓夢》選段,依據原著故事情節,回答問題。一句話未了,忽見一個老婆子忙忙走來,說道:“這是那裡說起!金釧兒姑娘好好的投井死了!”金釧兒因何投井自盡?她死後,王夫人和寶釵對此作何反應?請簡述。21.閱讀下面《歐也妮·葛朗臺》選段,...
-
在探究“光對鼠婦生活的影響”實驗中屬於變數的是( )A.溫度 B.溼度 ...
問題詳情:在探究“光對鼠婦生活的影響”實驗中屬於變數的是( )A.溫度 B.溼度 C.光照 D.土壤【回答】C知識點:生物圈是最大的生態系統題型:選擇題...
相關文章
- 完形填空。Johnisanartist(畫家).HelivesnexttoJane.Hespends(花費)m...
- “PresidentXiJinping’sreport,”asmileonhisface,hecontinu...
- 完形填空JoeSimpsonandSimonYateswerethefirstpeopletoclimbthe...
- “I’matpeacewithit.Ihavenoregrets.”LiNapostedthisbitter...
- Lookatthisphoto.①Theboy'snameisJohn.Hehastwosisters.②Th...
- TheestablishmentoftheXiong'anNewAreaisthelateststepmCh...
- 閱讀與回答問題SixteenisaspecialageintheUnitedStates.There’soft...
- 完形填空Johnisanartist(畫家).HelivesnexttoJane.Hespends(花費)mu...
- BeijingOperaisthequintessence(精髓)ofChina.It'sthemostwel...
- It'sinterestingtoseehowpeoplemakeuseofthetimetheyspendo...