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From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.
A. when B. until C. since D. before
高三英语单项填空简单题查看答案及解析
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The woman tried ______ to push the man away when he tried to snatch the bag from her.
A. consciously B. tightly C. casually D. desperately
高三英语单项填空简单题查看答案及解析
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The term “crocodile tears” refers to insincere sadness. This term has an etymology dating back several centuries. As early as the fourth century, crocodile tears are referenced in the literature with the meaning of insincere sorrow. It is said that crocodiles weep while eating their hunted animals because they are sad; however, this sadness is not honest.
The term crocodile tears became widely popular after it was documented in a fifteenth-century book titled The Voyage and Travel of Sir John Mandeville, Knight. A passage from the book reads: “These crocodiles kill men and they eat them weeping.”
As you may already know, crocodilians(鳄目动物) likely feel bad about little—especially feeding. However, the assumption of the crocodile-tears metaphor may be true. In a 2007 paper published in BioScience titled “Crocodile Tears: And they eat them weeping”, researchers observed 7 crocodilians in cages during feeding time at a reserve (4 caimans and 3 American alligators). The researchers observed the crocodilians outside of water at feeding stations to better find out whether tearing developed.
Five of the 7 crocodilians developed something like tears in their eyes before, during or after feeding. The researchers suggest that these crocodile tears occur because a crocodilian hisses (发出嘶嘶声) while it eats, and this hissing forces air through the spaces in the bone behind the nose and out the eye, in the process picking up nasolacrimal secretions (鼻泪管分泌物.)
In humans, crocodile tears is a medical condition that causes a person to tear up while eating. Crocodile tears typically occur because of a temporary loss of facial control due to damage of the facial nerve. Specifically, when the facial nerve grows again, it does so incorrectly thus resulting in tears during chewing food.
1.The underlined word “etymology” in Paragraph 1 refers to ________.
A.a reference book containing articles on various topics
B.the origin and history of a particular term
C.a printed sheet of paper that arc given free to advertise
D.the application and influence of a new theory
2.The term “crocodile tears” ________.
A.is a medical condition that causes a crocodile to tear up
B.became widely popular as early as the fourth century
C.refers to pretended sadness
D.proved to be only an assumption
3.From the 2007 paper published in BioScience, we can know that ________.
A.crocodilians especially feel bad about feeding
B.not all the 7 crocodilians developed tearing
C.the crocodilians were carefully observed inside water
D.crocodile tears occur because a crocodilian hisses after it eats
4.The passage is mainly about ________.
A.what the real truth is about crocodile tears
B.when the term “crocodile tears” got popular in literature
C.how researchers made the experiment on crocodilians
D.why crocodile tears typically occur in humans
高三英语阅读理解中等难度题查看答案及解析
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All animals—from humans to birds，worms and crocodiles—sleep，however，not all species sleep alike. Scientists have long puzzled over which aspects are truly fundamental. Now a new study on lizards(蜥蜴)suggests that sleep states once thought to occur only in mammals and birds have much older evolutionary origins.
Scientists had long doubted that birds and mammals are the only vertebrates(脊椎动物)to experience rapid eye movement(REM)，a sleep state in which the body is mostly immobile but the brain is overworking. During REM sleep，the brain produces high-frequency waves of electrical activity and the eyes turn suddenly from time to time. In humans，REM is closely linked to dreaming. REM is a pattern of slow-wave sleep，a state in which brain activity weakens and the waves become more consistent. This slower state is widely thought to be important to memory formation and storage.
“But scientists who looked for signs of REM and slow-wave sleep in reptiles(爬行动物) have had‘confusing’results，”says Gilles Laurent，a neuroscientist at the Max Planck Institute for Brain Research in Frankfurt，Germany. So he and his colleagues had planned to examine how the lizards—a common pet in Germany use visual information to chase treats. Using camera，the team found that the sleeping lizards’eyes twitched during the REM-like stage，just like other animals. They also found a very familiar pattern within the slower phase of the lizards’brain waves. Some scientists believe these waves help transform new information into memories by replaying past events quickly.
Although more studies are still needed to determine whether the function of these brain wave patterns is the same across species，the results suggest that these REM and slow-wave sleep patterns could date all the way back to the common ancestor of reptiles，birds，and mammals.
1.What does paragraph 2 mainly talk about?
A.The origin of human dream.
B.The definition and effect of REM.
C.The features and course of memory.
D.The advantages and disadvantages of REM.
2.Which of the following can best replace the underlined word“twitched”in paragraph 3 ?
A.opened wide B.moved quickly
C.stayed closed D.kept still
3.How does the lizards’brain waves turn information into memories according to some scienfists?
A.By increasing their frequency slowly.
B.By changing their pattern occasionally.
C.By playing back the past events quickly.
D.By connecting visual information effectively.
4.What can we infer from the last paragraph?
A.The function of the brain wave is the same.
B.All the animals have the common ancestor.
C.The sleep pattern of all the animals is the same.
D.The study about sleep pattern has a long way to go.
高三英语阅读理解困难题查看答案及解析
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—I often see him working hard in his spare time.
—________he has won the scholarship from time to time.
A. No wonder B. No doubt C. No way D. No problem
高三英语单项填空中等难度题查看答案及解析
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Pressed from his parents, and _____ that he has wasted too much time, the boy is determined to stop playing video games.
A. realizing B. realized
C. to realize D. being realized
高三英语单项填空中等难度题查看答案及解析
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Pressed from his parents, and _____ that he has wasted too much time, the boy is determined to stop playing video games.
A. realizing B. realized C. to realize D. being realized
高三英语单项填空中等难度题查看答案及解析
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It’s such a shame to lose a free throw. Playing in the court has pressure from the opponent, time, your teammates, the audience, and yourself. You have to shoot the ball despite all the pressures around. But with a free throw, you have the ball, no one will try to get it from you, and you have all the time to shoot the ball. But why is it that many players, even good shooters, miss most of their free throws? Maybe they need more practice or maybe they need to apply more ways to improve their free throw.
Improve your player or your free throwing skills by following the tips below:
Make it personal. The truth is, there is no rule on how one should handle and throw the ball in a free throw. What matters is that the player should shoot the ball from the free throw line no matter how he does it. So when trying to improve your free throw shooting, better stick to what works the best for you. Do not copy other people’s techniques. Make it your own and leave those techniques as theirs.
Formulate (公式化) a repetitive way of shooting the ball. A free throw should be personalized. But it should also be repetitive. You should be able to repeat your free throw techniques whether you are in your court or in another court, whether you are energized or tired. You can’t say you have a personal free throw technique if you can’t repeat it over and over again.
Shoot at the same position and distance for every free throw. Basketball courts may be located in different places or maybe marked with different paint colors. But all of these courts maintain the same distance from the ring to the free throw line. Familiarize your perfect position when making your free throws. That should help you do your perfect throw.
1.Why do so many players fail to make a successful free throw?
A. Because they don’t have any special skills
B. Because they are lacking in practice and tips.
C. Because they are not so familiar with rules
D. Because many of them are green hands.
2.What can you do if you want to be a wonderful free thrower?
A. Learn from others.
B. Form your own throwing skills.
C. Keep active in the court.
D. Learn to throw in different locations.
3.The underlined word “ring” in the last paragraph may most probably mean “________”.
A. sound B. basket C. ball D. group
4.Which of the following might serve as the best title of the above passage?
A. How to play basketball successfully in the court.
B. How to improve your basketball throw skills.
C. How to gain more points in throwing.
D. How to improve your basketball free throwing.
高三英语阅读理解中等难度题查看答案及解析
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He ______ chess well. But since he graduated from university, he almost has had no time to touch it.
A．played B．plays C．has played D．had played
高三英语单项填空中等难度题查看答案及解析
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阅读理解。
The Japanese like parties.From ancient times, a party becomes enlivened (活泼) when someone starts singing and others keep applauding.Having such a custom, the Japanese can easily sing in front of others without feeling embarrassed.This seems to be one of the reasons that karaoke has been largely accepted in Japanese society.
It is now widely recognized that the use of karaoke started at a snack bar in Kobe City, one of the three biggest cities in Japan.It is said that when a guitarist could not come to perform at the bar due to illness, the owner of the bar prepared tapes of accompaniment recordings, and people enjoyed singing to the tapes.
It was at that time that karaoke appeared.Holding a microphone and singing a song to the accompaniment of an “orchestra (管弦乐队)”， you can feel like a professional singer.For soldiers living in a stressful society, there is no other entertainment activity that can make them feel so refreshed.
It is a typical way to relax for Japanese businessmen.They use it to take away their stress after work.However, there is an obstacle to this: since most Japanese houses are still made of wood, it would be very annoying to the neighbors to sing into a microphone at night.Seizing upon the opportunity, businessmen created the karaoke box, a roadside facility containing karaoke equipment.Karaoke boxes are soundproofed rooms, closed with a door, placed on roadsides where people can sing.The first “Karaoke box” was placed in a rice camp in the countryside in 1984.It was built from a converted freight car (改装的货运车).Now, the karaoke boom has even spread abroad and it has also been attracting the attention of the countries trying to improve their literacy rate (识字率) as a good educational tool.
1.According to the text, we can learn that karaoke ________.
A.originated from the biggest city of Japan
B.originated in the form of singing to tapes
C.can help you achieve the level of professional singers
D.first appeared in the army to relieve stress for soldiers
2.The underlined word “soundproofed” in Paragraph 4 most probably means “________”.
A.recording sounds repeatedly
B.receiving sound signals
C.making sound more clear
D.stopping sound from being heard outside
3.What can be inferred from the text?
A.Karaoke was started in a bar during a party.
B.A guitarist was the originator who brought the karaoke into being.
C.Karaoke was very common as a form of entertainment at home when it was born.
D.Karaoke is used as a way of education in some countries.
4.What is the text mainly about?
A.What karaoke boxes are like.
B.How karaoke boxes were created.
C.The origins and development of karaoke.
D.Karaoke becomes a popular form of entertainment.
高三英语阅读理解中等难度题查看答案及解析