I believe that animals possess greater intelligence than most people think. But plants? I've never considered the possibility of plant intelligence. The idea seems absurd.
Yet I've had friends argue that plant intelligence might exist. "What are the differences between plants and animals?" they ask, and then they argue about certain species that seem to share the intelligence of both plants and animals.
New research suggests that plants communicate via "networks". Plant communication is not a new idea, and cannot indicate that its is a kind of intelligence, but it is still interesting.
Recent research from Vidi researcher Josef Stuefer at the Radboud University Nijmegen shows that plants have their own chat systems that they can use to warn each other. Therefore plants are not boring and passive organisms that just stand there waiting to be cut down or eaten up. Many plants form internal communication networks and are able to exchange information networks and are able to exchange information efficiently.
Many herbal plants such as strawberries and clovers (三叶草)naturally form networks.
Individual plants remain connected with each other for a certain period of time by means of runners (plant stems that grow along the ground and put down roots to form new plants). These connections enable the plants to share information with each other via internal channels. They are therefore very similar to computer networks. But what do plants chat to each other about?
Recently Stuefer and his colleagues were the first to prove that clover plants warn each other via the network links if danger is nearby . If one of the plants is attacked by caterpillars (毛虫),the other members of the network are warned via an internal signal. Once warned, the intact (完好无损的)plants strengthen their chemical and mechanical (机体的)resistance so that they are less attractive to advancing caterpillars. Thanks to this early warning system, the plants can stay one step ahead of their attackers. The research has shown that this significantly limits the damage to the plants.
Again, I don't believe this reflects intelligence, but it's is certainly fascinating.
1.The author thinks that the plant communication___________. .
A. is absolutely a new idea B. is a sign of plant intelligence
C. is related to animal communication D. is interesting and fascinating
2.Which of the following statements about the research is NOT true?
A. Most plants have no chat system and are passive organisms.
B. Individual plants can also remain connected with each other.
C. The communication between clover plants can protect them from damage.
D. The research is the first to show how clover plants warn each other.
3.The author's attitude towards plant intelligence is _______________.
A. unconcerned B. doubtful C. positive D. hopeful
4.What's the best title for the passage?
A. Does Plant Communication Really Exist?
B. Some Discoveries About Clover Plant
C. Does Plant Communication Imply Intelligence?
D. A New Study on Plant Communication
Honey from the African forest is not only a kind of natural sugar, it is also delicious. Most people and many animals like eating it. However, the only way for them to get that honey is to find a wild bees' nest and take the honey from it. Often, these nests are high up in trees, and it is difficult to find them. In parts of Africa, though, people and animals looking for honey have a strange and unexpected helper - a little bird called a honey guide.
The honey guide does not actually like honey, but it does like the wax in the beehives (蜂房). The little bird cannot reach this wax, which is deep inside the bees' nest. So, when it finds a suitable nest, it looks for someone to help it. The honey guide gives a loud cry that attracts the attention of both passing animals and people. Once it has their attention, it flies through the forest, waiting from time to time for the curious animal or person as it leads them to the nest. When they finally arrive at the nest, the follower reaches in to get at the delicious honey as the bird patiently waits and watches. Some of the honey and the wax always falls to the ground, and this is when the honey guide takes its share.
Scientists do not know why the honey guide likes eating the wax, but it is very determined(坚定的) in its efforts to get it. The birds seem to be able to smell wax from a long distance away. They will quickly arrive whenever a beekeeper is taking honey from his beehives, and will even enter churches when beeswax candles are being lit.Why is it difficult to find a wild bees' nest?
A.It's small in size. | B.It's hidden in trees. |
C.It's covered with wax. | D.It's hard to recognize. |
What do the words "the follower" in Paragraph 2 refer to?
A.A bee. | B.A bird. | C.A honey seeker. | D.A beekeeper. |
The honey guide is special in the way .
A.it gets its food | B.it goes to church |
C.it sings in the forest | D.it reaches into bees' nests |
What can be the best title for the text?
A.Wild Bees | B.Wax and Honey |
C.Beekeeping in Africa | D.Honey-Lover's Helper |
On a hill 600 feet above the surrounding land, we watch the lines of rain move across the scene, the moon rise over the hills, and the stars appear in the sky. The views invite a long look from a comfortable chair in front of the wooden house.
Every window in our wooden house has a view, and the forest and lakes seldom look the same as the hour before. Each look reminds us where we are.
There is space for our three boys to play outside, to shoot arrows, collect tree seeds, build earth houses and climb trees.
Our kids have learned the names of the trees, and with the names have come familiarity and appreciation. As they tell all who show even a passing interest, maple(枫树)makes the best fighting sticks and white pines are the best climbing trees.
The air is clean and fresh. The water from the well has a pleasant taste, and it is perhaps the healthiest water our kids will ever drink. Though they have one glass a day of juice and the rest is water, they never say anything against that.
The seasons change just outside the door. We watch the maples turn every shade of yellow and red in the fall and note the poplars’(杨树)putting out the first green leaves of spring. The rainbow smelt fills the local steam as the ice gradually disappears, and the wood frogs start to sing in pools after being frozen for the winter. A family of birds rules our skies and flies over the lake.What can be learned from Paragraph 2?
A.The scenes are colorful and changeable. |
B.There are many windows in the wooden house. |
C.The views remind us that we are in a wooden house. |
D.The lakes outside the windows are quite different in color. |
By mentioning the names of the trees, the author aims to show that .
A.the kids like playing in trees | B.the kids are very familiar with trees |
C.the kids have learned much knowledge | D.the kids find trees useful learning tools |
What does the underlined sentence in the last paragraph mean?
A.The change of seasons is easily felt. |
B.The seasons make the scenes change. |
C.The weather often changes in the forest. |
D.The door is a good position to enjoy changing seasons. |
What is the main purpose of the author writing the text?
A.To describe the beauty of the scene around the house. |
B.To introduce her children’s happy life in the forest. |
C.To show that living in the forest is healthful. |
D.To share the joy of living in the nature. |
Here is your best chance to travel around the UK in 2012: More than 200 B&Bs (bed & breakfast) across England, Scotland, Wales and Northern Ireland are selected to offer you amazing services for your stay at their lowest prices! Don’t miss it. Just collect the vouchers(活动券) in our B&B Daily printed from 01/ 04/ 2012 to 07/ 04/ 2012 and book the stays for your travel following the terms and conditions below:
●The offer includes a room for the night and a breakfast the next morning.
●The offer is of two kinds: £20 per room, per night, valid(有效的) during stay period of 2/ 04/ 2012--- 31/ 05/ 2012 and then again 01/ 08/ 2012--- 31/ 10/ 2012; £35 per room, per night, valid during stay period of 01/ 06/ 2012 --- 31/ 08/ 2012.
●The offer is valid for a basic twin or double room only.
●The stay must be booked directly with the chosen B&Bs before 28/ 04/ 2012.
●If voucher holders book either the £20 or £35 per room per night, any additional services such as
lunch, evening meal or activities may require an extra charge. But these are not required in order to take up the offer. Please check directly with your chosen B&Bs to see what extra services are available.
●Vouchers must be presented on arrival. If no vouchers are presented, the B&Bs may reserve(保留) the right to charge at full price for every night of stay.
●Vouchers may not be used together with any other offer.
●The voucher holders must pay for the stay in full at the time of booking. Additional £10 may be paid to confirm(确认) the booking and will be returned on arrival.
●The B&Bs reserve the right to refuse voucher holders’ bookings for people under the age of 18.The voucher can be used for a stay at the chosen B&B on .
A.09/ 01/ 2012 | B.04/ 02/ 2012 | C.01/ 03/ 2012 | D.28/ 04/ 2012 |
How much should be paid for a two-night stay in October 2012 at a chosen B&B?
A.£ 70. | B.£40. | C.£35. | D.£30. |
By taking up the offer, the voucher holders can choose to .
A.book either a basic twin or double room at the chosen B&Bs |
B.have lunch or evening meal without paying extra money |
C.use the B&B offer together with other offers |
D.book the stays through B&B Daily |
One of the greatest contributions to the first Oxford English Dictionary was also one of its most unusual. In 1879, Oxford University in England asked Prof. James Murray to serve as editor for what was to be the most ambitious dictionary in the history of the English language. It would include every English word possible and would give not only the definition but also the history of the word and quotations (引文) showing how it was used.
This was a huge task. So Murray had to find volunteers from Britain, the United States, and the British colonies to search every newspaper, magazine, and book ever written in English. Hundreds of volunteers responded, including William Chester Minor. Dr. Minor was an American Surgeon who had served in the Civil War and was now living in England. He gave his address as "Broadmoor, Crowthorne, Berkshire," 50 miles from Oxford.
Minor joined the army of volunteers sending words and quotations to Murray. Over the next years, he became one of the staff's most valued contributors.
But he was also a mystery. In spite of many invitations, he would always decline(拒绝) to visit Oxford. So in 1897, Murray finally decided to travel to Crowthorne himself. When he arrived, he found Minor locked in a book-lined cell(地窖) at the Broadmoor Asylum (精神病院) for the Criminally insane.
Murray and Minor became friends, sharing their love of words. Minor continued contributing to the dictionary, sending in more than 10,000 submissions in 20 years. Murray continued to visit Minor regularly, sometimes taking walks with him around the asylum grounds.
In 1910, Minor left Broadmoor for an asylum in his native America. Murray was at the port to wave goodbye to his remarkable friend.
Minor died in 1920, seven years before the first edition of the Oxford English Dictionary was completed. The 12 volumes defined(下定义) 414,825 words, and thousands of them were contributions from a very scholarly and devoted asylum patient. According to the text, the first Oxford English Dictionary .
A.came out before Minor died |
B.was edited by an American volunteer |
C.included the English words invented by Murray |
D.was intended to be the most ambitious English dictionary |
How did Dr. Minor contribute to the dictionary?
A.He helped Murray to find hundreds of volunteers. |
B.He sent newspapers, magazines and books to Murray. |
C.He provided a great number of words and quotations. |
D.He went to England to work with Murray. |
Prof. Murray and Dr. Minor became friends mainly because .
A.they both served in the Civil War | B.they had a common interest in words |
C.Minor recovered with the help of Murray | D.Murray went to America regularly to visit Minor |
What does the text mainly talk about?
A.The history of the English language. | B.The friendship between Murray and Minor |
C.Minor and the first Oxford English Dictionary | D.Broadmoor Asylum and his patients |
Hi!Have you ever suddenly felt that someone you knew was in trouble—and was he? Have you ever dreamed something that came true later? Maybe you have ESP (超感觉知觉).
ESP stands for Extrasensory Perception. It may be called a sixth sense. It seems to let people know about events before they happen, or events that are happening some distance away.
Here's an example. A woman was ironing clothes. Suddenly she screamed, "My father is dead! I saw him sitting in the chair!" Just then, a telegram came. The woman's father died of a heart attack. He died sitting in a chair.
There are thousands of stories like this one on record. Scientists are studying them to find out what's behind these strange mental messages. Here's another example—one of hundreds of dreams that have come true.
A man dreamed he was walking along a road when a horse and carriage came by. The driver said, "There's room for one more." The man felt the driver seemed dead, so he ran away. The next day, when the man was getting on a crowded bus, the bus driver said, "There's room for one more."
Then the man saw that the driver's face was the same face he had seen in the dream. He wouldn't get on the bus. As the bus drove off, it crashed and burst into flames. Everyone was killed!
Some people say stories like these are coincidences. Others, including some scientists, say that ESP is real. From studies of ESP, we may someday learn more about the human mind.According to the passage, the author believes that the sixth sense is ________.
A.in existence | B.imaginative | C.not real | D.impossible |
ESP lets people know _________.
A.about events before they happen |
B.about events after they happen |
C.about events that are happening some distance away |
D.A and C |
In the last paragraph the underlined word "coincidences" probably means _______.
A.things that may not happen |
B.things that happen in a dream |
C.things that must happen |
D.things that happen by accident |
This article is mainly about ________.
A.the human dream | B.the sixth sense |
C.the human mind | D.a crowded bus |