题目
题型：陕西省同步题难度：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.
B. humans
are the only animals that can accurately keep rhythm with musicC. the brain and the nervous system contribute to some mental abilities
D. bird pets can have their special rhythm under human"s instruction
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.
B. humans" musical sense
C. the same abilities in children
D. videos of dancing birds
答案
核心考点
试题【阅读理解 The idea for a science experiment can come from an unusual place.After 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
you do, you must be in control of your time. Your success in high school depends on your use
of time. Here are some important things to remember.
* Begin each term by filling in a master plan. First fill in things you must do (classes, work,
practice, etc. That you can"t change). Then find the most effective use for these times.
* Set a regular time and place for study. This will save you time in the long run. If you have
a study hall in your school, use it!
* Use daylight hours to study whenever poss
ible. For most people for every hour of studydone in daylight hours, it will take them one and a half hours to do the same task at night.
*Take breaks. Don"t plan marathon study time. Have a short rest before you study again.
*By using flash cards or summary sheets, you can use odd times to study-----while you"re
waiting for class to start or for a friend to pick you up.
* If possible, plan study time with a partner. Choose your partner wisely however. Make
sure you study, not socialize yourself.
* Do the most difficult tasks when you a
re active. (Take math for example: when you"re energetic, it will become easier to solve; when you"re tired, it will be impossible ! )
*Make a daily checklist. Do the most important tasks first.
B. your hard work
C. your brain power
D. how well you play the game
B. most people can spare more time to study in the daytime
C. it"s more difficult to study effectively at night
D. we have more important things to do than study at night
B. keeping a good balance between study and rest
C. putting the most important tasks first
D. trying to study alone instead of working with others
B. irregular
C. busy
D. divided
B. college students
C. teachers
D. high school students
A flood happens when wa
ter pours over dry land.Floods can cause very big damage when they happen unexpectedly.
Heavy rain can cause floods.If a lot of rain falls quickly,the earth is unable to soak (吸入)
it up,and the water builds up on the ground.When it runs off into the rivers,the rivers overflow
their banks.
The worst floods happen where the land is flat and low－lying.These areas are known
as floodplains.
What should I know if I live on a flood plain?
"Stay away from flood water."
Do not walk through moving water.It can knock you off your feet.If you must walk
through water,walk where the water is not moving.Use a stick to test the ground in front
of you."Stay awa
y from power lines that are on the ground.You could be electrocuted (电死)．"If you are scared,share your fears with an adult.Floods can be scary,but remember-the
water ALWAYS goes away!
What should I
do if a flood happens?1．Get to the meeting spot with your family.
2．Try to get to higher ground.
3．If you can not leave,get to a higher area in your home.
4．Listen to your family and follow all instructions carefully.
What dangers does a flood lead to?
Floods can lead to electrocution from down power lines,angry dangerous animals coming
out,drowning from high water levels or flash floods,as well as many other things.
heavilyB．when it hardly ever rains
C．where the land is flat
D．where the land is low－lying
B．it may make you fall over
C．you may drink some dirty water
D．some fish can make you fall over
B．it is common for floods to happen
C．water can"t be stopped from flowing
D．you should pay close attention to floods
B．If a flood happens,you should get to the meeting spot with your family.
C．If a flood happens,you should not go to a higher ground immediately.
D．If a flood happens,it can lead to electrocution from down power lines
sage that during a flood________.B．running away is a good way to save yourself
C．people are more likely to be attacked by animals
D．adults should try to persuade children to keep silent
actually bring results.For example, hunters may use a hunting charm (咒语). But they also use their
hunting skills and knowledge of animals. The charm may give hunters the extra confidence they need to
hunt even more successfully than they would without it.If they shoot a lot of game (猎物), they credit
the charm for their success. Many events happen naturally without magic. Crops grow without it, and
sick people get well without it.But if people use magic to bring a good harvest or to cure a patient, they
may believe the magic was responsible.
People also tend to forget magic"s failures and to be impres
sed by its surface successes. They may consider magic successful if it appears to work only 10 per cent of the time. Even when magic fails,
people often expla
in the failure without doubting the power of the magic. They may say that the magician made a mistake in reciting the spell or that another magician cast a more powerful spell against the
magician.
Many anthropologists (人类学家) believe that people have faith in magic because they feel a need to
believe in it. People may turn to magic to reduce their fear and uncertainty if they feel they have no
control over the outcome of a situation. For example, farmers use knowledge and skill when they plant
their fields. But they know that weather, insects, or diseases might ruin the crops. So farmers in some
societies may also plant a charm or perform a magic rite to ensure a good harvest.
B. a farmer
C. a magician
D. an anthropologist
B. Magic and Farming
C. Why Magic Works?
D. Why People Believe in Magic?
underlined word "spell"( Paragraph 2 ) most likely means________.B. magic events
C. words or expressions
D. magicians
B. magic can turn dreams into reality
C. they are not sure of themselves
D. magic can bring good results
B. Believers in magic usually overstate the power of magic.
C. People use magic to reduce their uncertainty and give them extra confidence.
D. Magic can solve problems people can"t deal with in a natural way.
The largest study of the effects of ageing on the heart has found that women"s longevity may be linked to the fact that their hearts do not lose their pumping power with age.
"We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of
age," said the head of the study, David Goldspink of Liverpool John Moores University in the UK.
"Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70,
one-third of those cells die and are not replaced in men," said Goldspink. "This is part of the ageing
process."
What surprises scientists is that the female heart sees very little loss of these cells. A healthy
70-year-old woman"s heart could perform almost as well as a 20-year-old one"s. "This gender( 性别)
difference might just explain why women live longer than men," said Goldspink. They studied more than
250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the
confusing influence of disease. "The team has yet to find why ageing takes a greater loss on the male heart," said Goldspink.
The good news is that men can improve the health of their heart with regular exercise. Goldspink
stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.
B. ageing
C. long life
D. effect
B. women"s ageing process
C. the gender difference
D. hearts and long life
B. women can replace the cells that enable the heart to beat
C. the female heart loses few of the cells with age
D. women never lose their pumping power with age
B. find out the reason for ageing
C. enable your heart to beat much faster
D. prevent your cells from being lost
B. scientists are on the way to finding out why the male heart loses more of the cells
C. the team has done something to prevent the male from suffering the greater loss
D. women over 70 could lose more heart cells than those at the age of 20
opinions. But recent data has indeed shown cognitive (认知的) ability to be higher in some countries than
in others. What"s more, IQ scores have risen as nations develop-a phenomenon known as the "Flynn
effect". Many causes have been put forward for both the intelligence difference and the Flynn effect,
including education, income, and even non-agricultural labor. Now, a new study from researchers at the
University of New Mexico offers another interesting theory: intelligence may be linked to
infectious-disease rates.
[2]The brain, say author Christopher Eppig and his colleagues, is the "most costly organ in the human
body". Brainpower consumes almost up to 90 percent of a newborn"s energy. It"s clear that if something
affects energy intake while the brain is growing, the impact could be long and serious. And for vast parts of the globe, the biggest threat to a child"s body-and therefore brain-is parasitic (由寄生虫引起的) infection. These illnesses threaten brain development________________. They can directly attack live tissue, which the body must then try every means to replace. They can invade the digestive pipe and block nutritional
intake. They can rob the body"s cells for their own reproduction. And then there"s the energy channeled (输送) to the immune system to fight the infection.
[3]Using data on national "disease burdens" (life years lost due to infectious diseases) and average
intelligence scores, the authors found they are closely associated. The countries with the lowest average IQ scores have the highest disease burdens without exception. On the contrary, nations with low disease
burdens top the IQ list.
[4]If the study holds water, it could be revolutionary for our understanding of the still-confusing
variation in national intelligence scores.
____________________________________________________________________________
Those countries that have the ________________ are always at the bottom of the IQ list.
___________ _________________________________
____________________________________________________________________________
____________________________________________________________________________
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