题目
题型:不详难度:来源:
The idea for a science experiment can come from an unusual place. After watching a YouTube video of a dancing bird named Snowball, a scientist in California decided to study the ability of animals to keep the beat.
Bird lovers have long claimed that their pets have rhythm, and there are many videos of dancing birds online. Until now, scientists have suspected that humans are the only animals that can accurately keep rhythm with music.
Thanks to Snowball, that scientific opinion is changing. Snowball is a cockatoo, a kind of parrot, and his favorite song is "Everybody" by the Backstreet Boys. When he hears the song, he moves his feet and rocks his body with the tempo, or pace of the music, as though he is the only bird member of the boy band.
Aniruddh Patel is a neuroscientist, or a scientist who studies how the brain and the nervous system contribute to learning, seeing and other mental abilities. He works at the Neurosciences Institute in San Diego. After seeing Snowball"s dance online, Patel visited the cockatoo at the bird rescue facility he"s called home for two years. The scientist played "Everybody" for Snowball and also played versions of the song that were sped up or slowed down. Sometimes, Snowball danced too fast or too slowly. Often, when there was a change in tempo, Snowball adjusted his dancing to match the rhythm. In other experiments, scientists have observed the same abilities in preschool children.
Patel isn"t the only scientist who has studied Snowball"s moves. Adena Schachner, who studies psychology at Harvard University, also wanted to know more about the dancing bird. Schachner"s team played different musical pieces for Snowball and a parrot named Alex, as well as eight human volunteers. The scientists observed that the birds and the humans kept time to the music with about the same accuracy.
Schachner and her team watched thousands of YouTube videos of different animals moving to music. Not all the animals could dance, however. From watching the videos, the scientists observed that only animals that imitate sounds, including 14 parrot species and Asian elephants, accurately moved in time to music.
63. The underlined words “that scientific opinion” in the third paragraph refers to the theory that ______.
A.birds like Snowball have the ability to keep the beat
B.humans are the only animals that can accurately keep rhythm with music
C.the brain and the nervous system contribute to some mental abilities
D.bird pets can have their special rhythm under human’s instruction
64. From the fourth paragraph we may know that ______.
A.Patel is the only scientist who has studied Snowball’s moves.
B.Snowball is able to adjust his dancing to match the rhythm.
C.Snowball cannot dance to the versions of the song Everybody.
D.it is the brain and the nervous system that control the mental abilities.
65. The idea of studying animals’ ability to keep the beat comes from ______.
A.bird lovers’ discovery
B.humans musical sense
C.the same abilities in children
D.videos of dancing birds
66. According to the scientists, Snowball’s ability to dance to music is probably related to the fact that ______.
A.it is the only bird member of the Backstreet Boys band
B.it has the ability to imitate sounds
C.it is a kind of dancing parrot
D.it has the same abilities as preschool children
答案
63---66 BBDB
解析
核心考点
试题【The idea for a science experiment can come from an unusual place. After watching】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
第三部分阅读理解(共20题,每小题2分,满分40分)
Recently, tests have proved that Beethoven died from lead poisoning. Bill Walsh directed the Beethoven Research Project. Mr. Walsh and his team examined pieces of bone belonging to Beethoven. They found a large amount of lead in the bone pieces. They said the lead levels were equal to those found in pieces of his hair in earlier studies of other scientists.
Genetic tests proved the bone pieces and his hair came from Beethoven. The research also examined bone fragments from someone else who lived during the same period. Both were from the top of the skull. The fragments from Beethoven had more lead than those from other person. Their study didn’t find measurable levels of cadmium(镉) or mercury(汞), which scientists used to consider were the causes of his health problems.
Beethoven was sick for much of his life. He experienced strong stomach pains, a sign of lead poisoning, and a change of personality when he was around 20. he also got angry easily, and suffered from depression and hearing loss. His health problems became worse as he grew older.
Walsh said the lead levels found in his skull suggested that the metal might have been present in his body for many years. He said although there had been recognized cases of deafness caused by lead poisoning, there was no strong evidence to suggest that lead poisoning was the cause of his deafness.
Beethoven visited many doctors to find a cure for his health problems, in a letter he wrote to a friend, he urged researchers to examine his body after he died so that other people would not have to suffer as he did.
61. If too much lead is in a person’s body, he will______.
A. suffer hearing loss B. get angry easily
C. suffer serious stomach pains D. lose most of his hair
62. From the passage we can learn that_______.
A. this is the first research into the cause of Beethoven’s death
B. any amount of lead will do great harm to people’s health
C. more lead was found in Beethoven’s bones than in his hair
D. scientists used to think that his death was caused by other metals instead of lead
63. In which section of the newspaper might you read this report?
A. Health. B. Technology. C. Entertainment. D. Culture.
64. What is the best title of the passage?
A. A surprising discovery about Beethoven B. Beethoven died from lead poisoning
C. Lead--- a killer metal for human beings D. New examination of Beethoven’ body
Parents often believe that they have a good relationship with their teenagers (青少年). But last summer, Joanna and Henry noticed a change in their older son: suddenly he seemed to be talking far more to his friends than to his parents . “The door to his room is always shut.” Joanna noted.
Tina and Mark noticed similar changes in their 14-year-old daughter. “She used to cuddle up (蜷伏)with me on the sofa and talk ,” said Mark . “Now we joke that she does this only when she wants something. Sometimes she wants to be treated like a little girl and sometimes like a young lady. The problem is figuring out which time is which.”
Before age 11, children like to tell their parents what’s on their minds. “In fact, parents are first on the list.” said Michael Riera, author of Uncommon Sense for Parents with Teenagers. “This completely changes during the teen years.” Riera explained. “They talk to their friends first, then maybe their teachers, and their parents last.”
Parents who know what’s going on in their teenagers’ lives are in the best position to help them. To break down the wall of silence, parents should create chances to understand what their children want to say, and try to find ways to talk and write to them. And they must give their children a mental break, for children also need freedom, though young. Another thing parents should remember is that to be a friend, not a manager, with their children is a better way to know them.
69. “The door to his room is always shut” suggests that the son .
A. is always busy with his studies B. doesn’t want to be disturbed
C. keeps himself away from his parents D. begins to dislike his parents
70. What troubles Tina and Mark most is that .
A. their daughter isn’t as lovely as before B. they can’t read their daughter’s mind exactly
C. they don’t know what to say to their daughter
D. their daughter talks with them only when she needs help
71. Which of the following best explains “the wall of silence” in the last paragraph?
A. Teenagers talk a lot with their friends.
B. Teenagers do not want to understand their parents.
C. Teenagers do not talk much with their parents.
D. Teenagers talk little about their own lives.
72. What can be learned from the passage?
A. Parents are unhappy with their growing children.
B. Parents have suitable ways to talk with their teenagers.
C. Parents should be patient with their silent teenagers.
D. Parents should try to understand their teenagers.
Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades.
"We"ve been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we"ve been able to record this increasing quantity of atmospheric CO2 into the ocean."
Scientists expected that as atmospheric CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
"As carbon dioxide dissolves(溶解) in the water, or seawater in this case, it forms a weak acid, carbonic acid," Dore explains. "And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic."
The seawater Dore and his colleagues have analyzed confirms what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
"It"s important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It"s potentially catastrophic."
53.What can be the best title of the passage?
A.Sea Life Facing Danger B.Climate Change Affecting Seawater
C.Oceans Becoming More Acidic D.Scientist Researching Seawater
54.Which of the following shows the process of the impact of atmospheric CO2 on sea life?
a.Sea life is endangered.
b.CO2 goes into the surface water.
c.The ocean chemistry is affected.
d.CO2decreases the PH and makes the seawater more acidic.
55.Scientist Robert Dore came to the conclusion based on__________.
A.his research and analysis
B.a major cause of climate change
C.some former theory
D.the expectation of other scientists
56.What does the passage want to tell us most?
A.It takes time to make a scientific study.
B.Atmospheric CO2 is doing harm to sea life.
C.Robert Dore is a committed and serious scientist.
D.Measures should be taken to prevent the potential catastrophe.
The GUARANTEE ON THIS WATER HEATER IS IN EFFECT ONLY WHEN THE HEATER IS INSTALLED AND OPERATED IN ACCORDANCE WITH THESE INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE STARTING.
LOCATION:
Select a location accessible to water lines and power supply. Do not locate the heater where water lines could be subjected to(受…影响) freezing temperatures. It is recommended that the heater be located near the center of greatest hot water usage to prevent heat loss through the pipes.
ELECTRICAL CONNECTIONS:
Before any electrical connections are made, be sure that the heater is full of water and that the valve(阀门) in the cold water supply line is open.
OPERATION
When the switch is closed, the operation of this electric water heater is automatic. The thermostats are preset to the "HOT" setting to provide a water temperature of approximately 120oF to reduce the risk of being burnt.
MAITENACE
Shut off the electric power whenever the water supply is turned off.
Shut off the electric power, water supply and drain the heater completely to prevent freezing whenever the building is left unoccupied during the cold weather months.
SERVICE
The trip–free devices on this heater will cut off all power if temperature of water is above 190F. If there is no hot water after a reasonable period of time, check the main fuse(保险丝) box. In the event that the fuses have not blown, call a serviceman.
72.The location of the water heater shall ___________.
A. be close to water lines and power supply
B. be subjected to low temperature
C. be in the centre of the house
D. have a longer distance to hot water usage.
73.Before any connection of power , make sure that one thing you have to do is _____.
A. to have the heater in the water B. to open the cold water inlet valve.
C. to shut off the thermostats D. to replace wiring diagram
74.When you are not using the heater in winter months, it is better for you to________.
A. have the tank full of clear water B. drain the heater
C. to leave it untouched D. prevent it from losing heat
75. What will happen to the heater when the temperature of water is above 190F?
A. it will cause damage B. It will break off automatically.
C. It will produce cold water. D. It will blow the fuse.
There have been many men in history. But many of them were very poor in childhood, and no uncles, aunts or friends to help them. Schools were few. They could not depend upon them for an education. They saw how it was and set to work with all their strength to know something. They worked their own way till they became well-known.
One of the most famous teachers in England used to tell his pupils, "I can not make worthy men of you, but I can help make men of yourself."
Some young men don"t try their best to make themselves valuable to the human beings. They can never gain achievement(成就) unless they see their weak points and change their course. They are nothing now, and will be nothing as long as they live, unless they accept the advice of their parents and teachers, and depend on their own efforts.
64. Which of the following titles fits this article best?
A. What Nature Says to Every Man. B. How to Be Famous.
C. Men Must Help Each Other. D. Depend on Yourself.
65. Many of the great men succeeded because ____________.
A. they wanted very much to become well known
B. they made great efforts to learn and work
C. they had received a good education
D. they had rich parents
66. According to the famous teacher in England, a teacher can________.
A. make his pupils rich men
B. help his pupils find a way to be famous
C. help his pupils make themselves useful men
D. make his pupils men of strength and courage
67. If young people depend on their own efforts, ______.
A. they are sure to be very famous in the world
B. they can be successful in their lives
C. they can live without their families
D. they no longer need any help
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