When you watch TV programs about wild animals, it is surprising to see how an antelope can escape a lion’s attack. In the wilderness, everyone has a stunt. Even plants have their own ways of fighting off enemies.
Over millions of years of evolution, plants have developed a unique defence system. Chemicals are wildly used for survival. By making their leaves, flowers, roots and fruits distasteful or poisonous(有毒的) to enemies, plants can fight back.
One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree’s leaves, the amount of poison increases in the other leaves. “It’s like the damaged leaves telephoning the others telling them to fight together against the enemy, ” he said.
The tree also sends defence messages to neighboring plants by giving out a special smell. Golden Wattle trees in the surrounding 45 meters will get the message and produce more poison within 10 minutes. Now, if an enemy eats too many of the trees’ leaves, it will die.
Every species of plant or tree is good at the production of a particular set of chemicals. A herbivore that can safely eat the leaves of one tree may be poisoned by its neighbor.
In this way, plants have developed not only individual defence system, but also shared it with others. This makes it impossible for a single animal to destroy even a small area of forest.
小題1: Which of the following can be the best title of the passage?
A．Plants Fight back with Poisons
B．Plants Can Kill Animals
C．Animals and Plants
D．Lions and Antelopes
小題2:According to the study, if one Golden Wattle tree is attacked by animals, it can________.
A．tell other trees to protect it
B．produce more poison within 10 minutes
C．send defence messages to the neighboring plants
D．kill the animals with its leaves
小題3: In this passage the underlined word “herbivore” probably means animals which ________.
A．live on both animals and plants B．feed on smaller animals
C．live on treesD．feed on plants or grass
小題4:The last paragraph of the passage suggests that this kind of defence system________.
A．does great harm to the animals B．does good to the forests
C．is helpful to some animalsD．harms the forests

小題1:A
小題2:C
小題3:D
小題4:B

試題分析：
小題1:A 主旨大意題。文章主要討論的是植物進行自我保護的話題，它們是通過分泌出毒素來保護自己的，故A正確。
小題2:C 細節(jié)題。根據(jù)第四段第一行The tree also sends defence messages to neighboring plants by giving out a special smell.說明C正確，
小題3:D 推理題。根據(jù)本句A herbivore that can safely eat the leaves of one tree may be poisoned by its neighbor.
說明該herbivore是吃樹葉的動物，也許它能吃一顆樹的樹葉，但是另外一棵樹的樹葉就會有更強的毒素。故該詞指一種吃草的動物。故D正確。
小題4:B 推理題。根據(jù)最后一段最后一句This makes it impossible for a single animal to destroy even a small area of forest.說明它可以保護整片森林不被動物吃掉。故B正確。
點評：文章主要討論的是植物進行自我保護的話題，它們是通過分泌出毒素來保護自己的�？疾橥评硪惠^多，解推斷題最主要的方法是根據(jù)詞義關(guān)系推斷具體細節(jié)。?
練習冊系列答案
相關(guān)習題

科目：高中英語 來源：不詳 題型：閱讀理解


Many times when people hear the words social networking, their brains automatically go to sites such as Twitter or Facebook．However, there are sites for those into social networking and into reading． Sound crazy? It's really not．
If you' ve ever wanted a site where you can receive book recommendations, follow your favorite authors, and keep up with what your friends are reading．then look no further than Goodreads, com．
Goodreads provides useful services for those in the reading world, It is a site where you can win books by going to giveaways and simply entering your information．Some giveaways are even signed by the author．And the books aren't boring, old or torn copies - many of them are ARC’s （Advanced Readers Copies）, for which you can write a short review on the site．Anyone can post reviews of their favorite books or series so that others may feel inclined to read them as well．
Another function of the site is offering book clubs and interest groups．You can have interactive discussions with groups of people reading the same things, sort of like a blog．You can also make friends with people and post statuses similar to Facebook．Your friends can send you hook recommendations and you can add them to your shelf if you choose．
Shelves are by far one of the best features on the site．You can categorize your entire library and put hooks you want to read on your "to - read" shelf．These virtual （虛擬的）shelves allow you to see what you' ve read and also let you keep track of the number of books you' ve read in a year．
You can even read original writing for free because many people post their own writing on the site to gain feedback and advice on how to improve．Anyone can join this site for free and fall in love with not just a hook, but a book site as well．
小題1:People who go to the site Twitter mostly want to              ．
A．get more books to readB．buy goods for their daily life
C．Set to know more peopleD．post their book recommendations
小題2:According to the author, if you want to interact with others about reading,            ．
A．you have a lot of websites to log on
B．you'd better go to Goodreads．com
C．you should go to bookstores or libraries
D．you can go to Twitter or Facebook
小題3:The underlined part "feel inclined" in．Paragraph 3 is the closest in meaning to “____” ．
A． have a tendency                                                 C． have no difficulty
C． have a possibility                                                D． have no doubt
小題4:You can do all of the following things on Goodreads．com EXCEPT         ．
A．receiving books signed by the authors
B．publishing your comments on books
C．exchanging your ideas with other people
D．buying all kinds of books that you like
小題5:What do we know about the shelves on Coodreads．com?
A．They are filled with all kinds of books from some libraries．
B．They are real bookshelves presented to readers by the site．
C．That is where people put books they have read or want to read．
D．New books will continuously be added to readers shelves by the site．

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

In our life, we have rarely expressed our gratitude to the one who lived those years with us. In fact, we don't have to wait for anniversaries to thank the ones closest to us and the ones so easily overlooked. If I have learned anything about giving thanks, it is this: give it now! While your feeling of appreciation is alive and sincere, act on it. Saying thanks is such an easy way to add to the world's happiness.
Saying thanks not only brightens someone else's world, it brightens yours. If you're feeling left out, unloved or unappreciated, try reaching out to others. It may be just the medicine you need. Of course, there are times when you can't express gratitude immediately. In that case, don't let embarrassment sink you into silence and speak up the first time you have the chance.
Once a young minister, Mark Brian, was sent to a remote parish(教區(qū))of Kwakiutl Indians in British Columbia. The Indians, he had been told, did not have a word for thank you. But Brian soon found that these people had unusual generosity. Instead of saying thanks, it is their custom to return every favor with a favor of their own, and every kindness with an equal or superior kindness. They do their thanks. I wonder if we had no words in our vocabulary for thank you, would we do a better job of communicating our gratitude? Would we be more responsive, more sensitive, more caring?
Thankfulness sets in motion a chain reaction that transforms people all around us－including ourselves. For no one ever misunderstands the melody(旋律)of a grateful heart. Its message is universal; its poems transcend(超越)all earthly barriers; its music touches the heaven.
小題1:Who do we easily forget to express our thanks to according to the writer?
A．Friends not meeting for a long time.B．Former teachers and friends.
C．People we want to get close to.D．Our family members and good friends.
小題2: When we say something for what others do for us, it ______.
A．benefits the people who do something for us
B．is good for both us and people who help us
C．wastes our and our friends' time at the same time
D．does harm to both us and people who help us
小題3:What does the writer mean in the third paragraph?
A．The only way to thank others is to express by your own words.
B．The best way to thank others is to do something for them.
C．We can thank people who help us in various ways.
D．We can thank people who help us in two ways.
小題4:The way to make us feel happy is ______ when we think we ourselves are forgotten in the world.
A．to help and appreciate othersB．to ask others to help us
C．to remind others of our helping themD．to ask someone to help others

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Dogs may not know exactly what you are doing especially when you’re trying to figure out a square root or diagram a sentence. But according to a new study, dogs can understand what we’re thinking and feeling by reading our facial expressions and body language and following our eyes.
Researchers studied 29 dogs. The dogs were shown a movie where a woman looked directly at them and said “Hi dog!” Then, the woman looked at a flowerpot sitting next to her. The researchers found that when the woman looked at and spoke directly to a dog, the dog usually followed her eyes to the flowerpot. It proved that the dogs knew that the woman was thinking about the flowerpot.
“By following the eye movements of dogs, we were able to get a first-hand look at how their minds are actually working,” said Jozsef, the senior researcher.
Later in the movie, the woman said “Hi dogs” in a low voice and didn’t look at the dog before looking at the flowerpot. In that situation, the dogs didn’t seem to understand what the woman was thinking. There was no eye contact, and the woman didn’t appear to speak to the dogs directly.
That comes as no surprise to dog trainer Jones. “Dogs normally speak through nonverbal signals. It’s more natural to them,” she said. “If you’ve ever watched dogs at a dog park, you’ve seen it. Within 30 seconds they enter the park, much information has passed between the new dog and the ones already in the park. They’re exchanging looks, observing eyes and body posture. On the other hand, when you speak to a dog, they are learning a foreign language.”
Picking up your nonverbal signals seems more natural. So, if you were hoping that all this means your dog could help you solve your math problems, you’re probably out of luck. But he or she might be a lot more in tune with what you’re thinking than you previously thought.
小題1:How could the researchers find that the dogs understood the woman’s intention?
A．By speaking to them directly.
B．By reading their eye movements.
C．By following their facial expressions.
D．By asking the dog trainer questions.
小題2:According to the text, Jones finds that ______.
A．dogs usually speak through verbal signals
B．dogs learn a great deal more at a dog park
C．dogs can understand humans’ words easily
D．dogs speak through eyes and body language
小題3:It is implied in the text that dogs can read your emotions only if ______.
A．you manage to get their attention
B．you like making friends with them
C．you are familiar with their behavior
D．you can pick up their verbal signals
小題4:What does the underlined phrase “be in tune with” in the last paragraph mean?
A．refuseB．a(chǎn)pproveC．understandD．love

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

Learning is natural. It begins as soon as we were born. Our  36  teachers are our families. At home we learn to talk and to  37  and feed ourselves.
Then we go to school. A teacher tells us   38   to learn and how to learn. Many teachers teach us, and we pass many   39  .Then people say we are   40  .
Are you really educated? Let’s think about the real meaning of   41   .Knowing facts does not   42 being able to solve(解決) problems. Solving problems   43   creativity(創(chuàng)造性),not just a good  44  .Some people who don’t know many   45 are good at solving problems.
Henry Ford is a good   46  .He left school at the age of 15. Later when his company could not build cars   47  enough, he solved the problem. He  48  of the assembly line(裝配線).
What does a good teacher do? Does he give students facts to  49  ? Well, yes, we must remember facts. But a good teacher   50  how to find answers. He brings us to the  51  of knowledge so we can drink for ourselves. When we are thirsty, we know where to go.
True learning combines(結(jié)合) intake(輸入) and output. We take information   52 our brains. Then we use it. Think of a   53  —it stores a lot of information, but it can’t think. It only obeys commands. A person  54  only remembers facts hasn’t really learned. Learning takes   55 only when a person can use what he knows.
小題1:
A．firstB．goodC．normalD．helpful
小題2:
A．wearB．put onC．runD．dress
小題3:
A．whatB．whenC．thatD．who
小題4:
A．stationsB．peopleC．pencilsD．exams
小題5:
A．caredB．educatedC．exchangedD．passed
小題6:
A．talkingB．growingC．a(chǎn)nsweringD．learning
小題7:
A．suggestB．sayC．meanD．show
小題8:
A．needs B．isC．bringsD．gets
小題9:
A．wordB．thingC．memoryD．condition
小題10:
A．peopleB．factsC．tonguesD．ways
小題11:
A．learnerB．teacherC．exampleD．driver
小題12:
A．wellB．fastC．beautifulD．cheap
小題13:
A．replaceB．heardC．talkedD．thought
小題14:
A．catch B．understandC．followD．remember
小題15:
A．knowsB．showsC．givesD．compares
小題16:
A．plentyB．pileC．stream（小溪）D．much
小題17:
A．ofB．forC．a(chǎn)boutD．into
小題18:
A．radio B．computerC．recordD．machine
小題19:
A．\B．whoC．whichD．what
小題20:
A．placeB．service C．notesD．time

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Once upon a time in a land far away, there was a wonderful old man who loved everything：animals, spiders, insects．
One day while walking through the woods, the nice old man found a cocoon（繭）of a butterfly．He took it home．A few days later, a small opening appeared; he sat and watched the butterfly for several hours as it struggled to force its body through that little hole．Then it seemed to stop making any progress．It appeared as if it had gotten as far as it could and it could go no farther．Then the man decided to help the butterfly, so he took a pair of scissors and cut off the remaining bit of the cocoon．
The butterfly then appeared easily．
But it had a swollen body and small, fragile wings．The man continued to watch the butterfly because he expected that, at any moment, the wings would enlarge and expand to be able to support the body, which would be smaller in time．Neither happened! In fact, the butterfly spent the rest of its life crawling （慢慢爬行）around with a swollen body and fragile wings．
It never was able to fly．
What the man in his kindness and hurry did not understand was that the limited cocoon and the struggle required for the butterfly to get through the tiny opening were Nature's way of forcing fluid from the body of the butterfly into its wings so that it would be ready for flight once it achieved its freedom from the cocoon．
Sometimes struggles are exactly what we need in our life．If we were allowed to go through our life without any obstacles and difficulties, it would disable us．We would not be as strong as what we could have been．And we could never fly．
小題1:The butterfly could never fly because _______________．
A．it was too fat and strong．
B．it loved crawling around．
C．it got out of the cocoon easily．
D．it didn’t get through the cocoon．
小題2:The text is most likely to be found in a book about_______________．
A．popular scienceB．humorous stories．
C．successful peopleD．philosophyevents
小題3:What is the implied meaning of the passage?
A．Life without any obstacles and difficulties is perfect．
B．Obstacles and difficulties contribute to success．
C．Never help a butterfly to get out of the cocoon．
D．A butterfly can never fly without going through the cocoon

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

The students at Sandy’s high school were badly shaken by the news that a classmate had  11 himself. On the suicide note was written: “It’s hard to  12 when nobody cares if you die.”
Glen, a teacher, realized this was a  13 moment about the importance of making people feel
 14 . He asked his class to imagine they were about to  15  and to write a note “telling someone how and why you  16 him or her.”
Sandy, who had a  17  relationship with her mother, decided to write her mother. Her letter  18  “We’ve had some  19  times and I haven’t always been a very good 20 ,but I know I’m lucky to have you in my life. You’re the  21 person I’ve ever known, And even when I disagree with you, I never  22 you love me and want what’s best for me. Thanks for not  23 up on me”.
When her mom read the note, she cried and hugged Sandy  24 but said little.
The next morning, Sandy found a 25  on her mirror: “Dearest Sandy, I want you to know being your mother is ,by far, the most important thing in my life.  26 I got your note, I thought I had lost your love and  27 . I felt like such a failure. I intended to 28 it all last night. Your note saved my  29 .”
Be careful not to underestimate the  30 of expressed appreciation. It won’t always save a life, but it will always make someone’s life better.
小題1:
A．sacrificedB． defeatedC． abandonedD． killed
小題2:
A． liveB． imagineC． struggleD． think
小題3:
A． sadB． finalC． teachableD． great
小題4:
A． ashamedB． valuedC． excitedD． scared
小題5:
A． dieB． failC． retireD． survive
小題6:.
A．missB． hateC． admireD． appreciate
小題7:
A． closeB．casualC．badD．personal
小題8:
A． readB． wroteC． spokeD． told
小題9:
A． freeB． delightfulC． usualD． rough
小題10:
A． daughterB． student C． friendD． trainer
小題11:
A． bestB． wisestC． luckiestD． gentlest
小題12:.
A． trustB． doubtC． considerD． predict
小題13:
A． takingB． goingC． givingD． looking
小題14:
A． coldlyB． hesitantlyC． shylyD． tightly
小題15:
A． noteB． giftC． noticeD． reminder
小題16:
A． SinceB． UntilC． ThoughD． When
小題17:
A． confidenceB． courageC． respectD． heart
小題18:
A． endB． makeC． getD． fall
小題19:
A． lifeB． timeC． moneyD． honor
小題20:
A． pushB． priceC． meaningD． power

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Harry is eighteen now. He studies in a middle school.His parents like him very much and hope he can become a famous man. So they often tell him to study hard and they do almost everything for him. They wakes him up at six in the morning, after breakfast his father takes him to school in a car and in the afternoon, as soon as the young man comes back, the supper is ready. Of course, he never washes his clothes or goes to buy anything in the shops.
Once Harry’s father was sent to London on business. He would stay there for half a year. Upon leaving, he told his wife to take good care of their son. The woman had to get up eatlier and did all that her husband did before. And two months later she was so tired that she was ill in bed. Now the young man got into trouble. He couldn’t do any housework. He had to do as his mother told him. He didn’t even know where to get on the bus!
One day Harry’s mother found his shoes were worn out and told him to buy a pair in the shop. But he didn’t  know how to choose  The woman had a sigh (嘆息)and give him a shoe patten(鞋樣)and told him to buy a pair of.shoes himself. With a policeman’s help, Harry found a shop. The shopkeeper was friendly to him. The man brought a lot of shoes and asked him to choose. When he was trying on a pair, suddenly he remembered something and took them off. The man was surprised and asked, “What’s the matter, young man?”
“I’m sorry. I’ve left the shoe pattern at home!”
小題1:         always does some housework in the morning
A．Harry's fatherB．Harry's mother
C．HarryD．Nobody
小題2:The woman had to look after her son by herself because         ．
A．her husband wasn't at home
B．she was stronger than her husband
C．she knew the youno man well
D．she was freer than her husband
小題3:When his father was in London,         ．
A．Harry had to stay at home
B．Harry couldn’t even find the bus stop
C．Harry fell behind in his class
D．Harry wouldn’t go to school
小題4:Harry had to buy shoes himself because _        ．
A．his mother didn't know what kind he needed
B．his mother was busy with the housework
C．something was wrong with his mother
D．his mother wanted her son to do something himself
小題5:According to the passage, what can we learn about Harry?
A．He wanted his mother to buy shoes for him．
B．He would rather use the shoe pattern than try the shoes himself．
C．He wouldn't listen to his mother．
D．He was strong enough to buy shoes for himself．

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Welcome to your future life!
You get up in the morning and look into the mirror. Your face is firm and young-looking. In 2035, medical technology is better than ever. Many people your age could live to be 150, so at 40, you’re not old at all. And your parents just had an anti-aging(抗衰老的) treatment. Now, all three of you look the same age !
You say to your shirt, “Turn red.” It changes from blue to red. In 2035, “smart clothes” contain particles(粒子) much smaller than the cells in your body. The particles can be programmed to change your clothes’ color or pattern.
You walk into the kitchen. You pick up the milk, but a voice says, “You shouldn’t drink that!” Your fridge has read the chip (芯片) that contains information about the milk , and it knows the milk is old . In 2035, every article of food in the grocery store has such a chip.
It’s time to go to work. In 2035, cars drive themselves. Just tell your “smart car” where to go. On the way, you can call a friend using your jacket sleeve(袖子). Such “smart technology” is all around you.
So will all these things come true? “For new technology to succeed,” says scientist Andrew Zolli , “it has to be so much better that it replaces what we have already.” The Internet is one example --what will be the next?
小題1:We can learn from the text that in the future__________.
A．people will never get old
B．everyone will look the same
C．red will be the most popular color
D．clothes will be able to change their pattern
小題2:What can be inferred from Paragraph 4?
A．Milk will be harmful to health.
B．More drinks will be available for sale.
C．Food in the grocery store will carry electronic information.
D．Milk in the grocery store will stay fresh much longer.
小題3:What is the text mainly about?
A．Food and clothing in 2035.
B．Future technology in everyday life.
C．Medical treatments of the future.
D．The reason for the success of new technology.

查看答案和解析>>

同步練習冊答案