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    Redwood trees are the tallest plants on the earth，reaching heights of up to 100 meters．They are also known for their longevity，typically 500 to 1000 years，but sometimes more than 2000 years．A hundred million years ago，in the age of dinosaurs，redwoods were common in the forests of a much more moist and tropical North America．As the climate became drier and colder，they declined to a narrow strip along the Pacific coast of Northern Califomia．
    The trunk of redwood trees is very strong and usually forms a single straight column．It is covered with a soft bark．This bark can be pretty thick，well over two feet in the more mature trees．It gives the older trees a certain kind of protection from insects，but the main benefit is that it keeps the center of the tree harmless from moderate forest fires because of its thickness．This fire resistant quality explains why the giant redwood grows to live that long．While most other types of trees are destroyed by forest fires，the giant redwood actually prospers because of them．
    Moderate fires will clear the ground of competing plant life，and the rising heat dries and opens the ripe fruit of the redwood，releasing many thousands of seeds onto the ground below．
    New trees are often produced from shoots，little baby trees，which form at the base of the trunk．These shoots grow slowly，fed by the root system of the “mother’’ tree．When the main tree dies，the shoots are then free to grow as full trees，forming a “fairy ring” of trees around the original tree．These trees，in turn，may give rise to more shoots，and the cycle continues．
    小题1:Why were redwood trees easier to find in the forests of North America millions of years ago?
    A．The trees were taller and stronger．
    B．The soil was softer for seeds to develop．
    C．The climate there was warmer and wetter．
    D．The temperature was lower along the Pacific coast．
    小题2:Which of the following is a function of the tree bark as mentioned in the passage?
    A．It allows redwood trees to bear seeds．
    B．It prevents redwood trees from attack by insects．
    C．It helps redwood trees absorb water in the air．
    D．It makes redwood trees more beautiful and appealing．
    小题3:Why do redwood trees grow to live that long according to the passage?
    A．They have heavy and straight tree trunks．
    B．They are properly watered and catered to．
    C．They are more resistant to fire damage than other trees．
    D．They produce many young trees to maintain their life cycle．
    小题4:How does a “fairy ring’’ form according to the passage?
    A．By killing an old tree．B．By connecting root systems．
    C．By inserting holes into old trees．D．By surrounding a mature tree．

    小题1:C
    小题2:B
    小题3:C
    小题4:D

    试题分析：文章介绍红杉的生长习性，它怎么抵御昆虫和森林大火的侵害，怎么能够存活的那么久。
    小题1:细节题：从文章第一段的句子：A hundred million years ago，in the age of dinosaurs，redwoods were common in the forests of a much more moist and tropical可知在上百万年前，北美的森林里面红杉是很容易找到的，选C
    小题2:细节题：从文章第二段的句子：It gives the older trees a certain kind of protection from insects，可知树皮的功能是阻止红杉被昆虫侵害，选B
    小题3:细节题：从第二段的句子：but the main benefit is that it keeps the center of the tree harmless from moderate forest fires because of its thickness．This fire resistant quality explains why the giant redwood grows to live that long．可知红杉能生长那么久，是因为它能够抵御森林大火的侵害，选C
    小题4:细节题：从文章最后一段的句子：When the main tree dies，the shoots are then free to grow as full trees，forming a “fairy ring” of trees around the original tree．These trees，in turn，may give rise to more shoots，and the cycle continues．可知“fairy ring’’ 是通过包围一颗成熟的树形成的，选D
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    科目：高中英语 来源：不详 题型：阅读理解

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    B．cause more forest fires
    C．lead to a longer fire season
    D．protect the forests there
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    D．ashes from the fire fall on the ice and darken the surface
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    B．had indicated that forest fires would pollute the atmosphere
    C．had suggested that people should take measures to protect environment
    D．had suggested that the fires would speed up climate warming
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    A．warm the climate as the supposition goes
    B．cool the climate by reflecting more sunlight into atmosphere
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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    B．The history of school uniforms.
    C．The advantages of school uniforms.
    D．How to deal with pressure in school.
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    科目：高中英语 来源：不详 题型：阅读理解

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    小题1:We learn from Paragraph 1 that __________________.
    A．an emerald and a ruby are names of diamonds.
    B．it’s not difficult to tell where the gem was mined.
    C．appearances help to identify the origin of gemstones.
    D．diamonds from different places may appear the same.
    小题2:Why did the U.S. government pass law that requires companies selling gemstones to determine the origins of their stones?
    A．To look for more gemstones.
    B．To encourage violent civil wars.
    C．To reduce the trade in blood minerals.
    D．To develop the economy.
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    A．Heat can turn ice into water or water into steam.
    B．Gemstones from the same area produce similar light patterns.
    C．Laser can changes a miniscule part of the gemstone into plasma.
    D．Materialytics has already collected patterns from thousands of gemstones.
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    A．It is ready for commercial use.
    B．People can use the new tool to find more gemstones.
    C．It can significantly reduce the gemstones trade in blood minerals.
    D．It will bring about a revolutionary change in identifying the origin of minerals.
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    A．tell us how to identify the origin of diamonds.
    B．introduce a laser technique in identifying a stone’s origin
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    科目：高中英语 来源：不详 题型：阅读理解

    Although cats may be one of the most popular pets today, little is known about how and when humans and cats set up their close relationship.
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    小题1:The evidence found in the remains dating back to prehistoric Cyprus means         .
    A．human made cats pets as early as 9,500 years ago
    B．human interacted with cats very early
    C．cats didn’t appear until prehistoric Cyprus
    D．when cats became domesticated
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    A．the preventions of pests from grains
    B．the history of Chinese farming
    C．the dogs and pigs
    D．the ways to keep pets
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    A．Cats didn’t feed on meat.
    B．The cats consumed large amounts of millet–based foods.
    C．One of the cats survived to reach old age.
    D．Some storage containers were specifically designed to keep out rodents.
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    A．Helping keep other domesticated animals.
    B．Not letting cats eat food.
    C．Supplying meat for human.
    D．Helping reduce the amount of pests.
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    A．EntertainmentB．Environment
    C．Human and ScienceD．Life and fashion

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    科目：高中英语 来源：不详 题型：阅读理解

    What would it be like to take a walk on the surface of Mars? If you could design the tallest building in the world, what would it look like? Do you dream of being the next J．K. Rowling? This summer, you can experience all of these things, and more. All you need is an Internet connection and your imagination.
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    With the Moon in Google Earth tool, you can walk in Neil Armstrong's famous footsteps. Take a guided tour of the moon's surface with Armstrong's fellow shuttle mate astronaut Buzz Aldrin.
    When you're exploring that part of the solar system, hop on over to the Red Planet with Google Mars. There, you can move very quickly around the surface and see images from the Mars Rovers.
    小题1:The author uses questions in the first passage to ________.
    A．introduce the topic of the paragraph
    B．question the possibility of realizing the dream
    C．attract the readers' attention
    D．let the readers answer it
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    A．By taking the time shuttle.
    B．By making use of the Internet
    C．By watching 3­D films.
    D．By finding a tourism company in Google
    小题3:Russell thought ________.
    A．the students spent too much time on the Internet
    B．the students shouldn't chat and play games online
    C．the students could solve their problems through the line
    D．the students should learn knowledge instead of chatting online
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    A．Encourage the kids to spend more time online.
    B．Encourage the kids to do some research on science.
    C．Encourage the kids to learn to use the computer.
    D．Encourage the kids to explore the world online.

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    科目：高中英语 来源：不详 题型：阅读理解

    Humans have sewn by hand for thousands of years. It was said that the first thread was made from animal muscle and sinew (腱). And the earliest needles were made from bones. Since those early days, many people have been involved in the process of developing a machine that could do the same thing more quickly and with greater efficiency.
    Charles Wiesenthal, who was born in Germany, designed and received a patent on a double-pointed needle that eliminated the need to turn the needle around with each stitch (缝合) in England in 1755. Other inventors of that time tried to develop a functional sewing machine, but each design had at least one serious imperfection. ,科Frenchman Barthelemy Thimonnier finally engineered a machine that really worked. However, he was nearly killed by a group of angry tailors when they burned down his garment factory. They feared that they would lose their jobs to the machine.
    American inventor Elias Howe, born on July 9, 1819, was awarded a patent for a method of sewing that used thread from two different sources. Howe’s machine had a needle with an eye at the point, and it used the two threads to make a special stitch called a lockstitch. However, Howe faced difficulty in finding buyers for his machines in America. In frustration, he traveled to England to try to sell his invention there. When he finally returned home, he found that dozens of manufacturers were adapting his discovery for use in their own sewing machines.
    Isaac Singer, another American inventor, was also a manufacturer who made improvements to the design of sewing machines. He invented an up-and-down-motion mechanism that replaced the side-to-side machines. He also developed a foot treadle(脚踏板) to power his machine. This improvement left the sewer’s hands free. Undoubtedly, it was a huge improvement of the hand-cranked machine of the past. Soon the Singer sewing machine achieved more fame than the others for it was more practical, it could be adapted to home use and it could be bought on hire-purchase. The Singer sewing machine became the first home appliance, and the Singer company became one of the first American multinationals.
    However, Singer used the same method to create a lockstitch that Howe had already patented. As a result, Howe accused him of patent infringement（侵犯）. Of course, Elias Howe won the court case, and Singer was ordered to pay Howe royalties（版税）. In the end, Howe became a millionaire, not by manufacturing the sewing machine, but by receiving royalty payments for his invention.
    小题1:Barthelemy Thimonnier’s garment factory was burned down because _____________.
    A．people did not know how to put out the fire
    B．Elias Howe thought Thimonnier had stolen his invention
    C．the sewing machines was couldn’t work finally
    D．workers who feared the loss of their jobs to a machine set fire
    小题2:Which of the following is NOT TRUE according to the passage?  
    A．Singer is an American inventor and manufacturer.
    B．The Singer sewing company became more practical.
    C．The foot treadle helped to make the sewer’s hands free.
    D．Singer made improvements to the design of sewing machines.
    小题3:Why did the court force Isaac Singer to pay Elisa Howe a lifetime of royalties?
    A．Because the judge was against Singer for his surly attitude.
    B．Because Howe had already patented the lockstitch used by Singer.
    C．Because Singer had borrowed money from Howe and never repaid it.
    D．Because Singer and Howe had both invented the same machine.
    小题4:Which of the following would be the best title for this passage?
    A．A Stitch in Time Saves Nine
    B．The Case between Howe and Singer
    C．Patent Laws on the Sewing Machine
    D．The Early History of the Sewing Machine

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    科目：高中英语 来源：不详 题型：阅读理解

    New research has revealed that which song drivers listen to can influence how safe they are on the roads.Among the top ten safest songs to drive to are Come Away With Me by Norah Jones，I Don't Want to Miss a Thing by Aerosmith and Tiny Dancer by Elton John.Each of the songs has an optimum tempo(最佳节奏) for safe driving，imitating the human heartbeat at around 60 to 80 beats per minute.The Scientist by Coldplay and Justin Timberlake's Cry Me a River also appeared in the top 10.
    The study，conducted at London Metropolitan University，also revealed the type of songs that cause motorists to drive dangerously.Unsurprisingly，music that is noisy increases a driver's heart rate，which can be deadly.Fast beats cause excitement that can lead people to concentrate more on the music than on the road and to speed up to match the beat of the song.Styles of music were also measured during the experiment and revealed differences between male and female drivers.Hip­hop made a female driver drive far more aggressively，speeding up faster than male driver.The heavy metal music caused the fastest driving among males in the group while the dance music had the same effect among women.The male and female drivers who listened to the classical music drove the most irregularly.
    The experiment involved eight people driving 500 miles each using the confused.com MotorMate app，which monitored driving behaviors through GPS technology.
    小题1:What's the main idea of the whole passage?
    A．Songs that drivers prefer to listen to on their way.
    B．A study made by the confused.com MotorMate app.
    C．What kind of songs the drivers should choose to listen to during driving.
    D．Female drivers and male drives have different responses to the same music.
    小题2:The underlined word “monitored” in the last paragraph means________．
    A．controlledB．bannedC．modeledD．showed
    小题3:．Which of the following statements is NOT true?
    A．Tiny Dancer by Elton John appeared in the top 10.
    B．Usually human hearts beat at around 60 to 80 beats per minute.
    C．The classical music makes most drivers drive comfortably and safely.
    D．The passage reveals appropriate music and improper music for drivers.
    小题4:If there is another paragraph in the end of the passage，the author may mention________．
    A．female and male drivers' popular tastes of music
    B．how did the study carry out
    C．why fast beat music is harmful to drivers
    D．some music with optimum tempo for driver to enjoy

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