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Below is a selection from a popular science book.
If blood is red, why are veins (静脉) blue?
Actually, veins are not blue at all. They are more of a clear, yellowish color. Although blood looks red when it’s outside the body, when it’s sitting in a vein near the surface of the skin, it’s more of a dark reddish purple color. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison.
Which works harder, your heart or your brain?
That kind of depends on whether you’re busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker（超级油轮）. But, in the long run, your brain probably tips it, because even when you’re sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it.
Why do teeth fall out, and why don’t they grow back in grown-ups?
Baby (or “milk”) teeth do not last long; they fall out to make bigger room for bigger, stronger adult teeth later on. Adult teeth fall out when they become damaged, decayed（腐烂）and infected by bacteria. Once this second set of teeth has grown in, you’re done. When they’re gone, they are gone. This is because nature figures you’re set for life, and what controls regrowth of your teeth switches off.
Do old people shrink（收缩）as they age?
Yes and no. Many people do get shorter as they age. But, when they do, it isn’t because they’re shrinking all over. They simply lose height as their spine (脊柱) becomes shorter and more curved due to disuse and the effect of gravity (重力). Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again? No, because old people don’t really shrink! It is not that they are growing backwards—their legs, arms and backbones getting shorter. When they do get shorter, it’s because the spine has shortened a little. Or, more often, become more bent and curved.
Why does spinning make you dizzy)?
Because your brain gets confused between what you’re seeing and what you’re feeling. The brain senses that you’re spinning using special gravity-and-motion-sensing organs in your inner ear, which work together with your eyes to keep your vision balance stable. But when you suddenly stop spinning the system goes out of control, and your brain thinks you’re moving while you’re not.
Where do feelings and emotions come from?
Mostly from an ancient part of the brain called the limbic system（边缘系统）. All mammals have this brain area — from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other, newer bits of the brain, we feel more complex emotions than any other animal on this planet.
If exercise wears you out, how can it be good for you?
Because our bodies adapt to everything we do to them. And as far as your body is concerned, it’s “use it, or lose it”! It’s not that exercise makes you healthy, it’s more that a lack of exercise leaves your body weak and easily affected by disease.
1.What is the color of blood in a vein near the surface of the skin?
A. Blue B. Light yellow
C. Red D. Dark reddish purple
2.Why do some old people look a little shrunken as they age?
A. Because their spine is in active use.
B. Because they are more easily affected by gravity.
C. Because they keep growing backwards.
D. Because their spine becomes more bent.
3.Which of the following statements about our brain is true?
A. In the long run, our brain probably works harder than our heart.
B. When our brain senses the spinning, we will feel dizzy.
C. The brains of the other mammals are as complex as those of humans.
D. Our feelings and emotions come from the most developed area in our brain.
4.What is the main purpose of the selection?
A. To give advice on how to stay healthy.
B. To provide information about our body.
C. To challenge new findings in medical research.
D. To report the latest discoveries in medical science.
高三英语阅读理解困难题查看答案及解析
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Below is a selection from a popular science book.
If blood is red, why are veins(静脉) blue?
Actually, veins are not blue at all. They are more of a clear, yellowish colour. Although blood looks red when it's outside the body, when it's sitting in a vein near the surface of the skin, it's more of a dark reddish purple colour. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison.
Which works harder, your heart or your brain?
This question depends on whether you're busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker. But, in the long run, your brain probably tips it, because even when you're sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it.
Do old people shrink as they age?
Yes and no. Many people do get shorter as they age. But, when they do, it isn't because they're shrinking all over. They simply lose height as their spine(脊柱) becomes shorter and more curved due to disuse and the effects of gravity(重力). Many (but not all) men and women do lose height as they get older. Men lose an average of 3－4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again？No, because old people don't really shrink！It is not that they are growing backwards—their legs, arms and backbones getting shorter. When they do get shorter, it's because the spine has shortened a little. Or, more often, become more bent and curved.
Why does spinning make you dizzy(眩晕的)?
Because your brain gets confused between what you're seeing and what you're feeling. The brain senses that you're spinning using special gravity and motion sensing organs in your inner ear, which work together with your eyes to keep your vision and balance stable. But when you suddenly stop spinning , the system goes out of control, and your brain thinks you're moving while you're not!
Where do feelings and emotions come from?
Mostly from an ancient part of the brain called the limbic system. All mammals have this brain area—from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other newer bits of the brain, we feel more complex emotions than any other animal on the planet.
1.What is the colour of blood in a vein near the surface of the skin?
A. Blue. B. Light yellow.
C. Red. D. Dark reddish purple.
2.Why do some old people look a little shrunken as they age?
A. Their spine is in active use.
B. They are more easily affected by gravity.
C. They keep growing backwards.
D. Their spine becomes more bent.
3.Which of the following statements about our brain is TRUE?
A. In the long run, our brain probably works harder than our heart.
B. When our brain senses the spinning, we will feel dizzy.
C. The brains of the other mammals are as complex as those of humans.
D. Our feelings and emotions come from the most developed area in our brain.
4.What is the main purpose of the selection?
A. To give advice on how to stay healthy.
B. To provide information about our body.
C. To challenge new findings in medical research.
D. To report the latest discoveries in medical science.
高三英语阅读理解中等难度题查看答案及解析
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Below is a selection from a popular science book.
If blood is red, why are veins（静脉） blue?
Actually, veins are not blue at all. They are more of a clear, yellowish color. Although blood looks red when it’s outside the body, when it’s sitting in the vein near the surface of the skin, it’s more of a dark reddish purple color. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison.
Which works harder, you heart or your brain?
That kind of depends on whether you’re busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker. But in the long run, your brain probably tips it, because even when you’re sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it.
Why do teeth fall out, and why don’t they grow back in grown-ups?
Baby (or “milk”) teeth do not last long; they fall out to make bigger room for bigger, stronger adult teeth later on. Adult teeth fall our when they become damaged, decayed and infected by bacteria. Once this second set of teeth has grown in, you’re done. When they’re gone, they are gone. This is because nature figures you’re set for life, and what controls regrowth of your teeth switches off.
Do old people shrink as they age?
Yes and no. Many people do get shorter as they age. But, when they do, it isn’t because they’re shrinking all over. They lose height as their spine（脊柱） becomes shorter and more curved due to disuse and the effect of gravity(重力). Many (but not all) men and women do lose height as they get older. Men lose and average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again? No, because old people don’t really shrink! It is not that they are growing backwards ----- their legs, arms and backbones getting shorter. When they do get shorter, it’s because the spine has shortened a little. Or, more often, become more bent and curved.
Why does spinning make you dizzy（眩晕的）?
Because your brain gets confused between what you’re seeing and what you’re feeling. The brain senses that you’re spinning using special gravity-and-motion-sensing organs in your inner ear, which work together with your eyes to keep your vision balance stable. But when you suddenly stop spinning the system goes out of control, and your brain thinks you’removing while you’re not.
Where do feelings and emotions come from?
Mostly from an ancient part of the brain called the limbic system. All mammals have this brain area ----- from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other, newer bits of the brain, we feel more complex emotions than any other animal on this planet.
If exercise wears you out, how can it be good for you?
Because our bodies adapt to everything we do to them. And as far as your body is concerned, it’s “use it, or lose it”! It’s not that exercise makes you healthy, it’s more that a lack of exercise leaves your body weak and easily affected by disease
1.What is the color of blood in a vein near the surface of the skin?
A．Blue B．Light yellow
C．Red D．Dark reddish purple
2.Why do some old people look a little shrunken as they age?
A．Because their spine is in active use.
B．Because they are more easily affected by gravity.
C．Because they keep growing backwards.
D．Because their spine becomes more bent.
3.Which of the following statements about our brain is true?
A．In the long run, our brain probably works harder than our heart.
B．When our brain senses the spinning, we will feel dizzy.
C．The brains of the other mammals are as complex as those of humans.
D．Our feelings and emotions come from the most developed area in our brain.
4.What is the main purpose of the selection?
A．To give advice on how to stay healthy.
B．To provide information about our body.
C．To challenge new findings in medical research.
D．To report the latest discoveries in medical science.
高三英语阅读理解困难题查看答案及解析
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How to Order
Ordering from BooksFirst is easy and safe.
Selecting Your Books
When you have found a book you would like to order, just click on Add to Basket and it will be added to your shopping basket. To make it easy to keep track of the books you’ve selected, My Shopping Basket will display your choices wherever you are on the site. When you’re ready to place your order, select View Basket.
View Basket
This is where you select the postal destination for your order, indicate whether you would like Next Day Delivery in the UK and choose gift-wrapping. You can also amend (修改) the contents of your basket by making any changes and then selecting Update Basket.
Overseas customers ordering three or more books can also request reduced airmail charges here. When you’re happy with the contents of your shopping basket, go to the Secure Checkout.
The Order Form
After you’ve completed the order form, you will receive an on-screen acknowledgment. This will be followed by an email confirming the details of your order.
We will then inform you when your order has been sent. If this is your first order, we will also inform you of your personal BooksFirst account number.
Your First Order
We’ll send you a personal account number after you have placed your first order. For following orders all you need to do is enter your personal account number and email address.
Returning Customers
If you have ordered from us before, online, by mail or telephone, you will have already owned a personal account number. You then only need to complete the full order form. Using your account number allows us to find your details from our records (they are not accessible online).
However, you do not need your BooksFirst personal account number to place an order—simply present all the required details on the order form. If you don’t have a note of your account number just Contact us so that we can supply it to you.
1.We can probably read this advertisement ______.
A．in a newspaper B．in a magazine C．on the Internet D．on TV
2.Yours choices will be displayed in order to ______.
A．To make it easy to keep track of the books.
B．To make sure you’ve selected a book.
C．To make an advertisement.
D．To show this is the postal destination.
3.Which of the following is true?
A．You must put what you choose in a basket as you do in a supermarket.
B．You can find your Shopping Basket nowhere but in View Basket.
C．You will get your personal account number the third time you order..
D．You can get an account number after you place an order online
4.The purpose of this advertisement is______.
A．to promote the sale of books
B．to show the procedure of ordering books online
C．to help readers apply for account numbers
D．to supply account numbers to readers
高三英语阅读理解中等难度题查看答案及解析
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Ordering from BooksFirst is easy and safe.
SELECTING YOUR BOOKS
When you have found a book you would like to order, just click on Add to Basket and it will be added to your shopping basket. To make it easy to keep track of the books you’ve selected, My Shopping Basket will display your choices wherever you are on the site. When you’re ready to place your order, select View Basket.
VIEW BASKET
This is where you select the postal destination for your order, indicate whether you would like Next Day Delivery in the UK and choose gift-wrapping. You can also change the contents of your basket by making any changes before selecting Update Basket.
Overseas customers ordering three or more books can also request reduced airmail charges here. When you’re happy with the contents of your shopping basket, go to the Secure Checkout.
THE ORDER FORM
After you’ve completed the order form, you will receive an on-screen acknowledgment. This will be followed by an email confirming the details of your order.
We will then inform you when your order has been sent. If this is your first order, we will also inform you of your personal BooksFirst account number.
YOUR FIRST ORDER
We’ll send to you a personal account number after you have placed your first order. For following orders all you need to do is enter your personal account number and email address.
RETURNING CUSTOMERS
If you have ordered from us before, online, by mail or telephone, you will have already owned a personal account number. You then only need to complete the full order form. Using your account number allows us to find your details from our records (they are not accessible online).
However, you do not need your BooksFirst personal account number to place an order simply present all the required details on the order form. If you don’t have a note of your account number just contact us so that we can supply it to you.
1.Where can customers make any change about their orders?
A.At Add to Basket. B.At My Shopping Basket.
C.At View Basket. D.At Secure Checkout.
2.If overseas customers order three or more books, they can .
A.get books at reduced price B.choose gift-wrapping
C.receive an on-screen acknowledgment D.get reduced airmail charges
3.The purpose of the passage is to .
A.persuade readers to read more books
B.show readers how to order books from Booksfirst
C.help customers apply for account numbers
D.inform readers of how to select books
高三英语阅读理解简单题查看答案及解析
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It is said that books on ______ popular science are in ______ short supply.
A. the; a B. /; / C. /; the D. the; the
高三英语单项填空中等难度题查看答案及解析
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学校图书馆需要购置一批新书， 现向学生征求意见。假如你是李越，你认为学校图书馆最需
要购置科普类图书（popular science books）和文学类图书（literary books）。请你用英语给图书馆王老师写一封100—120词的信，推荐这两类书，并分别说明推荐理由。
注意：信的抬头与落款已给出（不计入词数）。
Dear Mr. Wang,
____________________________________________________________________________________
Yours sincerely
Li Yue
高三英语书面表达困难题查看答案及解析
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——How do you like the set of popular science books?
——Wonderful! It _____ many problems we are interested in exploring.
A. refers B. consults C. covers D. writes
高三英语单项选择题中等难度题查看答案及解析
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Enter to win free book giveaways from publishers. See details for each book giveaway below.
Wilf The Migh
ty Worrier: Saves the WorldBy Georgia Pritchett
Wilf is a little boy who worries quite a lot, about quite a lot of things. About almost everything.
Sponsored by: Quercus
Giveaway dates: December 17 - January 18, 2016
Copies available: 10
Battle of the Bots (Robots Rule)
By C. J. Richards
Thanks to the eleven-year-old robotics whiz kid George Gearing and his best buddy, Jackbot, the evil Dr. Micron is finally behind bars. But life is hardly back to normal. With TinkerTech closed down for investigation and the townspeople abandoning their own beloved robots...
Sponsored by: Houghton Mifflin Harcourt
Giveaway dates: November 4 - November 24, 2015
Copies available: 5
The Secrets to Ruling School (Without Even Trying): Book 1 (Max Corrigan)
By Neil Swaab
It’s the first week of middle school, i.e., the Worst Place in the Entire World. How do you survive in a place where there are tough kids twice your size, sadistic (虐待狂的) teachers, and restrictions that make jail look like a five-star resort? Easy: with the help of Max Corrigan, middle school “expert” and life coach. Let Max teach you how to.
Sponsored by: Amulet Books
Giveaway dates: November 23 - January 8, 2016
Copies available:10
Weird but True 7: 300 Outrageous Facts
By National Geographic Kids
Ridiculous But True! 7 is the newest addition to the blockbuster Weird But True series. This new book offers children 300 more of the strange facts, illustrations, and photographs they love!
Sponsored by: National Geographic Children's Books
Giveaway dates: November 12 - January 14, 2016
Copies available: 10
1.You can get these book giveaways by _______.
A. entering a website to win
B. going to the book stores
C. writing a letter to sponsors
D. visiting the publishers in person
2.Which book would Tom like to get if he is interested in robots?
A. Wilf The Mighty Worrier: Saves the World
B. Battle of the Bots (Robots Rule)
C. The Secrets to Ruling School
D. Weird but True 7: 300 Outrageous Facts[
3.The text is intended to ______.
A. suggest ways to win free books from publishers
B. help readers contact with free book publishers
C. inform the readers to win free book giveaways
D. introduce some newly published children books
高三英语阅读理解中等难度题查看答案及解析
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Here is Booked．net’s selection of the strangest events worldwide·
Elephant polo(象球)
The title is self-explanatory, but elephant polo is more interesting than the traditional alternative played on horses．Elephants make the game slower，and, because of this the field is only three-quarters the length of a standard polo field．The elephants carry two people and are guided by mahouts(看象人)．The player hits the ball and tells the mahout which way to go. The Kings Cup Elephant Polo Tournament is the sixth largest event in the Thai calendar.
Volcan de Lodo El Totumo
If you are in Colombia at the end of March，you should make Cartagena part of your journey—here．between December and March every year，is the opportunity to get dirty, Bathing in mud from the Volcan de Lodo El Totumo can best be described as a primitive experience. The volcano is diminutive(微小的)，looking more like a little hill rising about 10 to 15m from the ground. If you climb a wooden staircase to reach the very top, you will discover a pit(大坑)of gray mud. It is believed that the mud has a curing effect，purifying your skin．
La Tomatina
It is possibly the most famous and most specific food fight in the world. If you think tomatoes are only for salads，you are on a wrong track．Just a visit to Valencia，or more precisely，a small Spanish village named Bunol in August can totally change your perception . There，on the last Wednesday of August every year．trucks dump 120 tons of tomatoes in the streets of the town, and tomato juice and pulp(果肉)flow from there.
Balloon Fiesta
Have you ever been taken to the skies in a hot-air balloon? The annual Albuquerque International Balloon Fiesta in America gives you the chance to enjoy a bird’s eye view of the city and countryside．Since 1972, perfect October weather，blue skies and wind patterns have combined to allow balloonists to control and retrace their route thanks to the direction of the winds. This is the only place in the world to enjoy a mass rise of balloons floating in the blue skies each October.
1.Where can visitors experience bathing in mud in February?
A. In Thailand． B. In Colombia，
C. In Spain D. In America·
2.Visitors to Bunol in August can_____.
A. attend the annual balloon fiesta
B. watch volcanoes erupting in person
C. take part in the game of elephant polo
D. witness the most specific food fight in the world
3.We can learn from the passage that________.
A. mahouts decide which way to go and hit the ball
B. the Kings Cup Elephant Polo Tournament is held each October
C. the tomato fight is intended to purify people’s skin with tomato juice.
D. the annual Albuquerque International Balloon Fiesta has been held for 45 years.
4.Which of the following groups of people are likely to be interested in this passage?
A. Students who like biology．
B. Those who like eating fruit．
C. Scientists who are doing research on volcanos
D. People who are curious about very strange events.
高三英语阅读理解中等难度题查看答案及解析
ty Worrier: Saves the World