更多"[不定项选择题]共用题干
第三篇People have been p"的相关试题:
[不定项选择题]共用题干
第三篇
People have been painting pictures for at least 30,000 years.The earliest pictures were painted by people who hunted animals.They used to paint pictures of the animals they wanted to catch and kill.Pictures of this kind have been found on the walls of caves in France and Spain.No one knows why they were painted there.Perhaps the painters thought that their pictures would help them to catch these animals.Or perhaps human beings have always wanted to tell stories in pictures.
About 5,000 years ago,the Egyptians and other people in the Near East began to use pictures as kind of writing. They drew simple pictures or signs to represent things and ideas,and also to represent the sounds of their language.The signs there people used became a kind of alphabet.
The Egyptians used to record information and to tell stories by putting picture-writing and pictures together. When an important person died,scenes and stories from his life were painted and carved on the walls of the place where he was buried.Some of these pictures are like modern comic strip stones.It has been said that Egypt is the home of the comic strip.But for Egyptians,pictures still had magic power. So they did not try to make their way of writing simple.The ordinary people could not understand it.
By the year 1000 BC,people who lived in the area around the Mediterranean Sea had developed a simpler system of writing. The signs they used were very easy to write,and there were fewer of them than in the Egyptian system.This was because each sign,or letter,represented only one sound in their language.The Greeks developed this system and formed the letters of the Greek alphabet.The Romans copied the idea and the Roman alphebet is now used all over the world.
These days,we can write down a story,or record information,without using pictures.But we still need pictures of all kinds:drawing,photographs,signs and diagrams.We find them everywhere:in books and newspapers,in the street,and on the walls of the places where we live and work.Pictures help us to understand and remember things more easily,and they can make a story much more interesting.
Which of the following statements is true?
A.The Egyptian signs later became a particular alphabet.
B.The Egyptians liked to write comic-strip stories.
C.The Roman alphabet was developed from the Egyptian one.
D.The Greeks copied their writing system from the Egyptians.
[不定项选择题]People in communities have slowly been pushed apart through the years, mostly because
people simply aren't taking the time to say a simple "hello". After considering this phenomenon, Idecided I was going to change the way I was doing things.
My 41 came one morning when I was in the community library. I passed by a girlwho42her books out of her locker. Thinking like most that someone else would help her pickthem up, I continued my way. However, when I had to43because I stupidly forgot my book, Inoticed she had just finished packing them up by herself. No one had stopped to44her.
"OK" I thought to myself, "this is where I should have changed."
My best opportunity came a few days later when I saw a man45by himself waiting for thelibrary to open, so I sat down next to him and began a46. It was difficult to get started, andeven when I had to say goodbye, almost every47from my new friend had a tone of doubt in it.And who could blame him?
People aren't used to making an48 chat with a stranger. But a change, no matter how des-perately it is needed, doesn't just happen; it takes people like us to make it possible. I49you totake a small step out of your comfort zone and try to make someone's day a litle brighter, togeth-er, we can really make society come50as a whole.
阅读以上短文，回答161-170题。
第41题答案是__________
A.trouble
B.doubt
C.wish
D.opportunity
[不定项选择题]共用题干
第三篇
Iron Deficiencies
Experts have observed for years that endurance athletes,particularly females,frequently have iron deficiencies.Now a new study by a team of Purdue University researchers suggests that even moderate exercise may lead to reduced iron in the blood of women.
"We found that women who were normally inactive and then started a program of moderate exercise showed evidence of iron loss,"says Roseanne M.Lyle,associate professor at Purdue.Her study of 62 formerly inactive women who began exercising three times a week for six months was published in the journal Medicine & Science in Sports & Exercise."Women who consumed additional meat or took iron supplements were able to bounce back,"she notes."But the new exercisers who followed their normal diet showed a significant decrease in iron levels."
Iron deficiency is very common among women in general,affecting one in four female teenagers and one in five women aged 18 to 45,respectively.But the ratio is even greater among active women,affecting up to 80 percent of female endurance athletes.This means,Lyle says,that"too many women ignore the amount of iron they take in."
Women of childbearing age are at greatest risk,since their monthly bleeding is a major source of iron loss.Plus,many health-conscious women increase their risk by rejecting red meat,which contains the most easily absorbed form of iron.And because women often restrict their diet in an effort to control weight,they may not consume enough iron-rich food,and are liable to experience a deficiency.
"The average woman takes in only two thirds of the recommended daily allowance of iron," notes another expert."For a woman who already has a poor iron status,any additional iron loss from exercise may be enough to tip her over the edge into a more serious deficiency,"notes the expert. Exercise can result in iron loss through a variety of mechanisms.Some iron is lost in sweat,and,for unknown reasons,intense endurance exercise is sometimes associated with bleeding of the digestive system.
The best sources of iron,and the only sources of the form of iron most readily absorbed by the body,are meat,chicken,and fish.Good sources of other forms of iron include dates,beans,and some leafy green vegetables.
Who will have the least risk of having iron loss?
A.Women of childbearing age.
B.Women who reject red meat.
C.Women who take dates and beans often.
D.Women who control their weight by taking less meat and vegetables.
[不定项选择题]共用题干
第三篇
Some People do Not Taste Salt Like Others
Low-salt foods may be harder for some people to like than others,according to a study by a Penn State
College of Agricultural Sciences food scientist. The research indicates that genetic factors influence some of
the difference in the levels of salt we like to eat.
Those conclusions are important because recent,well-publicized efforts to reduce the salt content in
food have left many people struggling to accept fare that simply does not taste as good to them as it does to
others,pointed out John Hayes,assistant professor of food science,who was lead investigator on the study.
Diets high in salt can increase the risk of high blood pressure and stroke.That is why public health ex-
perts and food companies are working together on ways to help consumers lower salt intake through foods that
are enjoyable to eat. This study increases understanding of salt preference and consumption.
The research involved 87 carefully screened participants who sampled salty foods such as soup and
chips,on multiple occasions,spread out over weeks.Test subjects were 45 men and 42 women,reportedly
healthy,ranging in age from 20 to 40 years.The sample was composed of individuals who were not actively
modifying their dietary intake and did not smoke cigarettes.They rated the intensity of taste on a commonly
used scientific scale,ranging from barely detectable to strongest sensation of any kind.
"Most of us like the taste of salt. However,some individuals eat more salt,both because they like the
taste of saltiness more,and also because it is needed to block other unpleasant tastes in food."said Hayes.
"Supertasters,people who experience tastes more intensely,consume more salt than do nontasters.Snack
foods have saltiness as their primary flavor,and at least for these foods,more is better,so the supertasters
seem to like them more."
However,supertasters also need higher levels of salt to block unpleasant bitter tastes in foods such as
cheese,Hayes noted."For example,cheese is a wonderful blend of dairy flavors from fermented milk,but
also bitter tastes from ripening that are blocked by salt,"he said."A supertaster finds low-salt cheese un-
pleasant because the bitterness is too pronounced．"
Hayes cited research done more than 75 years ago by a chemist named Fox and a geneticist named
Blakeslee,showing that individuals differ in their ability to taste certain chemicals.As a result,Hayes ex-
plained,we know that a wide range in taste acuity exists,and this variation is as normal as variations in eye
and hair color.
"Some people,called supertasters,describe bitter compounds as being extremely bitter,while others,
called nontasters,find these same bitter compounds to be tasteless or only weakly bitter."he said."Re-
sponse to bitter compounds is one of many ways to identify biological differences in food preference because
supertastmg is not limited to bitterness."
The last two paragraphs illustrate that taste acuity is_________.
A.developed over time after birth
B.related to one's eye and hair color
C.still unknown to scientists
D.genetically determined
[不定项选择题]共用题干
第三篇
Two People, Two Paths
You must be familiar with the situation:Dad's driving,Mum's telling him where to go.
He's sure that they need to turn left.But she says it's not for another two blocks.Who has
the better sense of direction?Men or women.
They both do,a new study says,but in different ways.
Men and women,Canadian researchers have found,have different methods of finding
their way.Men look quickly at landmarks（地标）and head off in what they think is the right
direction.Women,however,try to picture the whole route in detail and then follow the path
in their head.
"Women tend to be more detailed,"said Edward Cornell,who led the study,"while
men tend to be a little bit faster and...a little bit more intuitive（直觉感知的）."
In fact,said Cornell,"sense of direction"isn't one skill but two.
The first is the"survey method".This is when you see an area from above,such as a
printed map.You can see,for example,where the hospital is,where the church is and
that the supermarket is on its right.
The second skill is the"route method".This is when you use a series of directions.
You start from the hospital,then turn left,turn right,go uphill一and then you see the
supermarket.
Men are more likely to use the survey method while women are more likely to use one
route and follow directions.
Both work,and neither is better.
Some scientists insist that these different skills have a long history.They argue it is
because of the difference in traditional roles.
In ancient times,young men often went far away with the older men to fish or hunt.
The trip took hours or day sand covered unfamiliar places.The only way to know where you
were was to use the survey method to remember landmarks一the mountains,the lakes and
soon.
The women,on the other hand,took young girls out to find fruits and plants.These
activities were much closer to home but required learning well-used paths.So,women's
sense of space was based on learning certain routes.
Women developed a sense of space out of the need
A.to go fishing.
B.to go hunting.
C.to learn well-used paths.
D.to go swimming.
