牛津譯林版(2019)必修3《Unit 1 Nature in the balance》2021年同步練習(xí)卷(Welcome-Integrated)
發(fā)布:2024/12/7 4:30:2
一、單詞拼寫
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1.Already well over 400 of the total of 6,800 languages are close to e
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2.It was the first time I had set foot on African s
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3.As is known to all,there are seven c
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4.The industrial park development caused the society to worry about the
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5.We must reduce
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6.It's necessary to pay attention to the h
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7.Join us to taste a v
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8.They have given up hope of finding any more s
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9.The new drug has great s
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10.If headaches only occur at night,lack of fresh air and o
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11.Operators said the dark spot is about two times the l
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12.The d
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六、閱讀理解
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37.The next time you eat a piece of chocolate be sure to enjoy it,because according to two of the world's largest chocolate makers Mars Inc.jye.ai Barry Callebaut,the treat may soon be in short supply.The problem?We are consuming the candy at a faster pace than farmers can grow cocoa.The manufacturers say that in 2013.jye.ai consumed 70,000 tons more cocoa than was produced.Experts say that this is the worst supply-demand imbalance they have experienced in more than 50 years.
Parts of the reason for the condition is the large reduction in supply,caused by continuous drought in the western African countries of Ivory Coast and Ghana,where more than 70 per cent of the world's cocoa is produced.Additionally,a certain disease known as frosty pod has destroyed 30 to 40 per cent of global cocoa production.As result,many farmers have turned to more profitable and easier grown crops like corn.This means that even if conditions improve,cocoa production may never get back to normal.
Meanwhile,the world is only getting hungrier for chocolate.The biggest increase in demand is from the residents of emerging market countries like India.Though their consumption is nowhere close to the amount European devour,their newly acquired amount for the treat is making a huge dent(凹痕)in an already tight market.
There is also the growing desire for dark chocolate,which contains more than 70 per cent cocoa compared to normal chocolate.Experts believe that if consumption continues at this pace,cocoa deficits(差額)could swell to two million tons,by 2030.
Not surprisingly,cocoa prices have risen by 60% since 2012,a cost that manufacturers have offset by raising the prices of everyone's favourite candy.As the situation worsens,the price of chocolate can only rise so be sure to enjoy piece of the sweet treat,like it is your last!
(1)The underlined phrase "supply-demand imbalance" probably means "
A.people consume more chocolate than production
B.farmers grow more cocoa than people's demand
C.more and more people like eating chocolate now
D.chocolate is becoming more and more expensive
(2)It is hard to raise cocoa production probably because
A.the weather is changeable in the western Africa
B.a(chǎn) certain disease spread around the world
C.many farmers don't grow any longer
D.it is impossible for conditions to be improved
(3)Where has the demand of chocolate been increasing greatly according to the passage?
A.In Asia.
B.In Africa.
C.In Europe
D.In America.
(4)According to the author's prediction we can know that
A.chocolate will become cheap sooner or later
B.the farmers will produce more cocoa in 2030
C.the price of chocolate will be going up all the way
D.dark chocolate will be more popular than common one組卷:2引用:1難度:0.5 -
38.The comic-book superhero Daredevil(超膽俠)became blind by accident,but his blindness only made his other senses superhuman.
It's commonly believed that deaf or blind people may have other Daredevil-like senses.But the reality is that people with one impaired(受損的)sense don't have general improvements in their other senses,but rather very specific brain changes,new research shows.
Scientists are now uncovering some of the brain differences that underlie changes or improvements in other senses.
"For example,research shows that people who are deaf from birth tend to be more sensitive to light or movement in their peripheral vision(周邊視覺),compared with people who can hear," said Christina Karns,a neuroscientist at the University of Oregon.
Karns and her colleagues wanted to know whether the areas of the brain responsible for hearing were also organized differently in deaf people,compared with people who could hear.In experiments with people who can hear,when the participants see a light flashed in their peripheral vision and hear two beeps at the same time,they experience the illusion(錯(cuò)覺)that they saw two flashes of light.Karns's team did the same experiment with deaf individuals,except that the beeps were replaced with puffs of air on the participants' faces.
Deaf people reported seeing two flashes of light when they felt two puffs of air,suggesting they use touch the same way hearing people use sound to improve visual accuracy(精確性). "Hearing people are doing this all the time," said Karns,who presented her findings. "Deaf people don't have sound,so they end up building a visual system that's more accurate."
But the improvements in deaf people's other senses are very specific.Studies show that vision in the fovea(小凹),the central part of the eye,is no better in deaf people than in hearing people.Also,the improvements aren't seen in people who become deaf later in life.
One of the big questions driving research on this topic is whether being deaf or blind frees up brain areas for other senses.Stephen Lomber,a neuroscientist at the University of Western Ontario,and colleagues found that cooling down the hearing cortex(皮層)of deaf cats caused the animals to lose their improved peripheral vision,suggesting those brain areas had,indeed,been related to vision.
Taken together,the research into the differences between deaf people's brains and hearing people's brains shows there's a lot of hope for ways we can train our brains.But humans haven't developed super senses just yet.
(1)Most people think people with one impaired sense
A.experience great changes in their brains
B.tend to become a superman like Daredevil
C.generally have a super ability in other senses
D.should improve their other senses through training
(2)According to Karns's experiment,deaf people
A.have a much better fovea than hearing people
B.have totally different brains from hearing people
C.have obvious illusions about light flashed in front of them
D.take advantage of their touch to improve visual accuracy
(3)In Paragraph 8,the experiment with deaf cats is used to show
A.the hearing cortex helps train our brains
B.deaf cats like using their improved peripheral vision
C.the ability of Daredevil can become a reality in our life
D.brain areas for other senses have a relationship with vision
(4)What does the passage mainly talk about?
A.Whether deaf people have superhuman vision.
B.How deaf people use their other senses in life.
C.Experiments on the superhuman vision of the deaf.
D.Differences between deaf people and hearing people.組卷:2引用:1難度:0.5