Yourbraincontrolseverythingyoudo.Itmakesitpossiblefor...
問題詳情:
Your brain controls everything you do. It makes it possible for you to think,
Learn, create and feel; to blink(眨眼) and breathe and for your heart to heat --this
fantastic control center is your brain. It is so amazing that a famous scientist once
called it " the most complex(複雜) thing we have yet discovered in our universe".
Can this small grey organ(器官) , which weighs less than one and a half kilos,
really do so much? Amazingly , your brain contains about 100 billion neurons(神經元) -it would take you over 3 ,000 years to count them all. Believe it or not, the activity in your brain never stops. Your neurons create and send more messages than all the phones in the world. And although one neumn creates only a little electricity, all your neurons together can produce enough electricity to power a light bulb (燈泡).
So exactly how fast does your brain work? Well, imagine this: a bee lands on your foot. Neurons in your skin send this information to your brain at a speed of more than 240 kilometers per hour. Your brain then uses other neurons to send the message back to your foot to shake the bee off quickly. These neurons can send this information at more than 320 kilometers per hour. No computer has your hrain's unbelievable ability to deal with the amount of information coming from your eyes, ears and other sensory organs.
But how does your brain allow you to leam things Lhat you will use in the future? The structure (結構) of your brain changes every time you have a new thought, remember or leam something. For example, riding a bike seems impossible at first, but soon you are able to do it. How? As you practice, your brain sends "bike riding" messages again and again Soon, the actions are learnt and you are able to ride a bike easily from then on.
1. From the passage we know that neurons______________ .
A. receive messages very slowly B. are only found in your skin
C. send messages to your brain D. need electricity to work
2. In Paragraph 3, the writer mentions computers to ______________ .
A. compare them wich the human brain B. show how fast they have become
C. say that computers have no abilities D. ask people to use computers more
3. When you have a new thought, ______________ .
A. your brain will power a light bulb B. your heart beats faster
C. you remember something D. the structure of your brain changes
4. The article is mainly ahout ________________ .
A all the steps when your brain leams things
B. what an unbelievable organ the human brain is
C. how the brain makes people smarter than computers
D. the things you can do to make your brain work faster
【回答】
1C 2A 3D 4B
知識點:日常生活類
題型:閱讀理解
-
下列說法正確的是 A.物質發生化學反應都伴隨著能量變化B.伴有能量變化的物質變化都是化學變化C.在一個確...
問題詳情: 下列說法正確的是 A.物質發生化學反應都伴隨著能量變化B.伴有能量變化的物質變化都是化學變化C.在一個確定的化學反應關係中,反應物的總能量總是高於生成物的總能量D.放熱反應的發生無需任何條件【回答】A知識點:化學反應中的能量變化題型:選擇題...
-
______clevertheboyis! A.How ...
問題詳情:______clevertheboyis! A.How B.What C.Whata【回答】A知識點:感嘆句題型:選擇題...
-
下列與實驗相關的敘述正確的是 A.稀釋濃硫*時,應將蒸餾水沿燒杯內壁緩慢地注入濃硫*中B.配製溶液時,若加水...
問題詳情:下列與實驗相關的敘述正確的是 A.稀釋濃硫*時,應將蒸餾水沿燒杯內壁緩慢地注入濃硫*中B.配製溶液時,若加水超過容量瓶刻度,應用膠頭滴管將多餘溶液吸出C.配製1mol·L-1300mLNaCl溶液可以選擇一個50mL的容量瓶和一個250mL的容量瓶D.可以用右圖裝置進行*氣的...
-
(2010·福建大學聯考)入海河流三角洲的土地利用型別受河流淡水和海洋鹹水的共同影響。某三角洲面積增長較快,該三...
問題詳情: (2010·福建大學聯考)入海河流三角洲的土地利用型別受河流淡水和海洋鹹水的共同影響。某三角洲面積增長較快,該三角洲地區2007年土地利用型別的構成如下表所示。讀表,完成11~12題。旱地林草地鹽荒地灘塗其它合計佔總面積比例(%)171232182110011.該三角洲地...
相關文章
- MichaelMorpurgoisoneofBritain'sbestlovedstorymakerswhos...
- EveryoneknowsEnglishisoneofthemostimportantsubjectsi...
- Itisveryeasytocookinstantnoodles(方便麵)inashorttimebyputt...
- —Imustsaygoodbyetoyou.Ifeelveryupset.—Cheerup! Itwon'tb...
- ---I’msorrythatI’vekeptyourbookforsolong. Ipromisetoret...
- 閱讀填表。Doyouliketraveling?Howcanyoumakeyourtripinterestin...
- —Imissedmybushere.I’msorrytokeepyouwaitingforsolong. ...
- ―ProfessorLiiskindbutstrictabouteverything.―
- “Don'tworryifyouhaveproblems!”Itiseasytosayuntilyouare...
- Anewstudylinksheavyairpollutionfromcoalburningtoshorter...