题目
题型：湖南省高考真题难度：来源：
African elephant is divided into two distinct (不同的) species.
The discovery was made by researchers at York and Harvard University when they were examing the
genetic relationship between the ancient woolly mammoth and mastodon modern elephants-the Asian
elepphant, African forest elephant, and African savanna elephant.
Once they obastain DNA sequences (序列) from two fossils (化石), mammoths and mastodons, the
team comparted them with DNA from modern elephants. They found their amazement that mordern forest
and savanna elephants are as distinct from each other as Asian elephants and mammoths.
The scientists used detailed genetic analysis to prove that the African savanna elephant and the African
forest elephant have been distinct species for several million years. The divergence of the two species took
place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed all
the scientists.
There has long been debate in the scientific community that the two might be separate species, but this
is the most convincing scientific evidence so far that they are indeed different species.
Previously, many naturalists believed that African savanna elephants and African forest elephants were
two populationgs of the same species, despite the elephants" significant size differences. The savanna elephant
has an average shoulder height of 3.5 metres while the forest elephant has an averate shoulder double the
weight of the forest elephant. But the fact that they look so differrent does not neccssarily mean they are
different species. However, the proof lay in the analysis of the DNA.
Alfried Roca, assitant professor in the Department of Animal Sciences at t he University of Illinois, said,
"We now have to treat the forest and savanna elephants as two difficult units for conservation purpose.
Since 1950, all Afican elephants have been conserved as one species. Now that we know the forest and
savanna elephants have been distinct animals, the forest elephant should become a bigger priority (优先) for
conservation purposes."
B. the forest elephant
C. the savanna elephant
D. the maslodon elephant
B. exhibition
C. separation
D. examination
B. height
C. weight
D. population
B. The purpose of studying Afican elephant
C. The way to divide Afican elephants into two units
D. The renson for the distinction of African elephants
B. Amazing Experiments about Elephants
C. An Unexpected Finding ahout Elephants
D. A Long Scientifif Debate about Elephants
答案
核心考点
试题【Reading comprehension. A recent study of ancient and modern elephant has com】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Write NO MORE THAN THREE WORDS for each answer.
teenagers, many information resousces on the Internet can be used. As a matter of fact, there are educational,
music and art websites that are truly helpful to teeagers, because they can help make one"s life easier.
Education websites are helpful to a teenager in doing school work and searching for a colleag. Some can
help studying for testes, explaining a lesson, and doing homeward.Some can help find the right school based
on one"s interests. And still others have pages devoted to the social life at each colleges or the species activities
that at a certain school. Some free music sites enable a teenager to diversify their musical_ tastes. On these
sites, all types of music are available such as pop, jazz and country. One can type in a song,category or artist
and his or her entire catalog appears. Then the listener can make multiple play lists without creating an account
(账户) with the site. There various art websites that can help students to appreciate and create art pieces. On
these sites, a student can view numerous photos and art pieces from different. Mediums or create an account
with the website to upload their art pieces for people to see. In addition, one can enjoy various art people have
created on display for the rest of the world.Truly informative resources offered on the Internet. The best
suggestion one can receive is to try to look for new websites that can help in the educational,music, or art area
so one can become well-rounded and informed.
Many 1______ are available on various websites.
I. Educational sites: helping one 2______ and search for a college
· Study for tests, explain a lesson, and do homework
· Find the right school that one 3______
· learn information about college social life and 4______
II. Free music sites; 5______ to diversify musical tastes
· Listen to all types of music
· Type in a song, category, or artist to get an entire catalog
· make multiple playlists 6______
III. 7______; helping one appreciate and create works
· View photos and works from mediums
· 8______ for others to see
· 9______ on display
Helpful websites can make teenagers 10______
famous inventors? What about the people who invented the traffic light and the windshield wiper (雨刮器)?
Shouldn"t we know who they are?
Joan Mclean thinks so. In fact, Mclean, a professor of physics at Mountain University in Range, feels so
strongly about this matter that she"s developed a course on the topic. In addition to learning "who" invented
"what", however, Mclean also likes her students to learn the answers to the "why" and "how" questions.
According to Mclean, "When students learn the answers to these questions, they are better prepared to
recognize opportunities for inventing and more motivated to give inventing a try."
So,just what is the story behind the windshield wiper? Well, Mary Anderson came up with the idea in 1902
after a visit to Mew York City. The day was cold and stormy, but Anderson still wanted to see the sights, so
she jumped aboard a streetcar. Noticing that the driver was struggling to see through the snow covering the
windshield, she found herself wondering why there couldn"t be a buolt-in devic for cleaing the window. Still
wondering about this when she returned home to Birmingham, Alabama, Anderson started drafting out solutions.
One of her ideas, a lever (操作杆) on the inside of a vehicle that would contral an arm on the outside, became
the first windshield wiper.
Today we benefit from countless inventions and innovations,It"s hard to imagine driving without Garrett A.
Morgan"s traffic light. It"s equally impossible to picture a world without Katherine J. Blodgett"s innovation that
makes glass invisible. Can you picture life without clear windows and eyeglasses?
B. beneficial, though their inventors are less famous
C. not useful, because their inventors are less famous
D. not useful, though their inventors are famous
B. inform students of the windshield wiper"s invention
C. carry out the requirements by Mountain University
D. prepare students to try theie own invention
B. inspired by the story behind the windshield wiper
C. due to his dream of being caught in a rainstorm
D. not related to Professor Joan McLean"s lectures
B. How to Design a Built-in Dervice for Cleaning the Window?
C. Shouldn"t We Know Who Inventd the Windshield Wiper?
D. Shouldn"t We Develop Invention Courses in Universities?
important measurement. An animal that is aware (意识) of itself has a high level of intelligence.
Awareness can be tested by studying whether the animal recognizes itself in the mirror, that is, its own
reflected image (反射出的影像). Many animals fail this exercise bitterly, paying evry little attention to the
reflected image. Only humans, and some intelligent animals like apes and dolphins, have shown to recognize
that the image in the mirror is of themselves.
Now another animal has joined the club. In the Proceedings of the National Academy of Sciences,
researchers report that an Asian elephant has passed the mirror self-reflection test.
"We thought that elephants were the next important animal," said Dinana Reiss of the Wildlife Conservation
Society, an author of the study with Joshua M. Plotnik and Fans B. M. de Waal of Emory University. With
their large brains, Reiss said, elephants "seemed like cousins to apes and dolphins."
The researchers tested Happy, Maxine and Patty, three elephants at the Bronx Zoo.They put an 8-foot-
square mirror on a wall of the animals" play area (out of the sight of zoo visitors) and recorded what happened
with cameras, including one built in the mirror.
The elephants used their long noses to find what was behind it, and to examine parts of their bodies.
Of the three, Happy then passed the test, in which a clear mark was painted on one side of her face. She
could tell the mark was there by looking in the mirror, and she used the mirror to touch the mark with her
long nose.
Diana Reiss said, "We knew elephants were intelligent, but now we can talk about their intelligence in a
better way."
B. Whether they have self-awareness.
C. Whether they enjoy outdoor exercises.
D. Whether they enjoy playing with mirrors.
B. They are big favorites with zoo visitors.
C. They are included in the study by Reiss.
D. They are already known to be intelligent.
B. They are big favorites with zoo visitors.
C. They are included in the study by Reiss.
D. They are already known to be intelligent.
"wash up". An application is calling on the next government to bring it back.
At school the children are taught to add up and subtract (减法) but, extraordinarily, are not routinely
shown how to open a bank account-let alone how to manage their finances in an increasingly complex and
demanding world.
Today the parenting website Mumsnet and the consumer campaigner Martin Lewis have joined forces
to launch an online application to make financial education a compulsory element of the school curriculum
in England. Children from five to 16 should be taught about everything from pocket money to pensions,
they say. And that was exactly the plan preserved in the Children, Schools and Families bill that was shelved
by the government in the so-called "wash-up" earlier this month-the rush to legislation before parliament
was dismissed. Consumer and parent groups believe financial education has always been one of the most
frustrating omissions of the curriculum.
As the Personal Finance Education Group (Pfeg) points out, the good habits of young children do not
last long. Over 75% of seven- to 11-year-olds are savers but by the time they get to 17, over half of them
are in debt to family and friends. By this age, 26% see a credit card or overdraft (透支) as a way of extending
their spending power. Pfeg predicts that these young people will"find it much harder to avoid the serious
unexpected dangers that have befallen many of their parents" generation unless they receive good quality
financial education while at school."
The UK has been in the worst financial recession (衰退) for generations. It does seem odd that-unless
parents step in-young people are left in the dark until they are cruelly introduced to the world of debt when
they turn up at university. In a recent poll of over 8,000 people, 97% supported financial education in schools,
while 3% said it was a job for parents.
B. how to deal with the financial crisis
C. teaching young people about money
D. teaching students how to study effectively
B. pupils should not be taught to add up and subtract
C. students have been taught to manage their finances
D. laws on financial education have been effectively carried out
B. promote the connection of schools and families
C. ask the government to dismiss the parliament
D. appeal for the curriculum of financial education
B. teenagers spend their money as planned
C. parents are willing to pay the debt for their kids
D. it will be in trouble if the teenagers are left alone
B. show the seriousness of the financial recession
C. make the readers aware of burden of the parents
D. illustrate some people are strongly against the proposal
and then presses her foot down to begin sewing. While she"s doing this, she pretends to guide fabric (布料)
through the machine. Liu looks forward to the class when she can work on a piece of real cloth, and make a
beautiful dress.
Each Tuesday afternoon, after the bell rings for the fourth period, Liu becomes a fashion designer. At the
same time, the rest of the students at the High School Attached to Yunnan Normal University in Kunming are
also having classes a little bit different from the usual ones. Some students dance, others create robots, and still
others review films. These are just a few of the other 27 elective (选修的) courses besides Liu"s sewing class
that the school began to offer last month.
"The fashion design class has become the bright point of my week. I learn how to choose colors and fabrics
(织物) as well as sewing and sketching (素描) skills. It"s all helping me to realize the dream of becoming a
fashion designer I"ve had since I was a little girl," Liu said.
Design is Liu"s favorite, but for other students the electives are interesting lessons which relieve (舒缓) the
pressures of schoolwork. Some students, for example, are learning how to play bridge. Chen Xi, 15, is one of
them. She said, "Many people think that playing a card game like this in class is a waste of time. But in fact,
bridge is a very challenging game that helps develop memory and math skills."
B. Once a month
C. Once a term
D. Once a year
B. Once a month
C. Once a term
D. Once a year
B. Because they needn"t do any homework in the elective classes.
C. Because they can get an opportunity to relieve their pressures.
D. Because they want to be fashion designers in the future.
B. creating robots
C. playing a card game
D. reviewing films
最新试题
- 1下列说法中错误的是（ ）A．体温计不能用来测开水的温度B．不是所有的固体都有一定的熔化温度C．液化和汽化都是在一定温度
- 2某厂生产的甲、乙两种产品每件可获利润分别为30元、20元，生产甲产品每件需用A原料2千克、B原料4千克，生产乙产品每件需
- 3如图所示电路中，电源电压不变，当开关S1闭合，S2断开时，电流表的示数为0.2A，电压表示数为6V；若将两表互换位置，并
- 4常温下将20.0 g14%的NaCl溶液跟30 g24%的NaCl 溶液混合，得到密度为1.15 g/mL的混合溶液，计
- 5共同特征最多的两种生物是（ ）A．杨树和柳树B．银杏和杏C．海带和金鱼藻D．满江红和芦苇
- 6 高速铁路是现代社会的新型运输方式，也是交通运输现代化的重要标志。高铁的出现对汽车客运和航空客运都产生了重大冲击。这表明
- 7Our bodies are ________ by working out. Similarly, our minds
- 8煮沸过的水不宜养鱼，是因为煮沸过的水中几乎不含有（ ）A．氧元素B．氧原子C．氧分子D．氢元素
- 9下面划线字的读音、四字词语的字形全部正确的一项是（2分）………【 】A．宽恕shù牟moú取鹤利鸡群莫衷一是B．睥睨n
- 10书面表达。 你到过什么地方？你对它有什么深刻的印象? 请用英语写一篇短文来介绍你游历过的城市或风景点。词数在
热门考点
- 1下列运算正确的是[ ]A.B.C.D.
- 2如图甲所示，质量为m2=1kg的绝缘板静止在粗糙水平地面上，质量为m1、带电量q=+1×10-5C、大小可以忽略的滑块静
- 3请同学们在下面两个题目中任选一个，完成作文。小题1:让 走进心灵 说明：在横线上填写合
- 4先化简，后求值：，其中x=3。
- 5已知数列{an}各项均为正数，Sn为其前n项和，对于，总有成等差数列.(I )求数列{an}的通项an；(II)设数列的
- 6“餐饮讲营养，保健为健康；穿衣棉和毛，名牌又时尚；出行要‘打的’，道路真宽敞；电视数字化，电脑上网忙”这是改革开放30年
- 7完形填空（共20小题；每小题1.5分，满分30分）阅读下面短文，掌握其大意，然后从1—20题各题所给的四个选项（A、B、
- 8如图所示，一次家庭探究活动中，小明把一个正在发光的灯泡放到U形磁体中间，惊讶的发现灯丝在晃动，关于这个现象正确的说法是
- 9填写常见物质的化学式（1）胃液中含有的酸是______；（2）在人体中含量最高的物质是______；（3）我国正在建设的
- 10．下列各组词语中，没有错别字的一组是