way many North Americans interact (互动) these days. The term is "networked individualism". This
concept is not easy to understand because the words seem to have opposite meanings. How can we be
individuals (个体) and be networked at the same time? You need other people for networks.
Here is what Professor Wellman means. Before the invention of the Internet and e-mail, our social
networks included live interactions with relatives, neighbors, and friends. Some of the interaction was
by phone, but it was still voice to voice, person to person, in real time.
A recent research study by the Pew Internet and American Life Project showed that for a lot of people,
electronic interaction through the computer has replaced this person-to- person interaction. However, a lot
of people interviewed for the Pew study say that"s a good thing. Why?
In the past, many people were worried that the Internet isolated (孤立) us and caused us to spend too
much time in the imaginary world of the computer. But the Pew study discovered that the opposite is true.
The Internet connects us with more real people than expected - helpful people who can give advice on
careers, medical problems, raising children, and choosing a school or college. About 60 million Americans
told Pew that the Internet plays an important role in helping them make major life decisions.
Thanks to the computer, we are able to be alone and together with other people-at the same time!
B. have the rights and freedom to do things of their own interest
C. do things in their own ways and express opinions different from other people
D. are able to keep to themselves but at the same time reach out to other people
B. Friends.
C. Phones.
D. Parents.
B. the Internet makes people waste a lot of time and feel very lonely
C. the Internet has become a tool for a new kind of social communication
D. a lot of people regard the person-to-person communication as a good thing
B. We"re Communicating on the Internet.
C. We"re Alone Together on the Internet.
D. We"re in the Imaginary World of the Internet.
Some scientists claim that we humans are the only living things that are conscious (有意识的)-we alone
are aware that we are thinking.
No one knows how consciousness works-it is one of science"s last great mysteries.
All your thoughts take place in the cerebrum (大脑皮质), which is at the top of your brain, and different
kinds of thought are linked to different areas, called association areas.
Each half of the cerebrum has four rounded ends called lobes (脑叶)-two at the front (frontal and
temporal lobes) and two at the back (occipital and parietal lobes).
The frontal lobe is linked to your personality and it is where you have your bright ideas.
The temporal lobe is where you hear and understand what people say to you.
The occipital lobe is where you work out what your eyes see.
The parietal lobe is where you record touch, heat and cold, and pain.
The left half of the brain controls the right side of the body. The right half controls the left side.
One half of the brain is always dominant (in charge). Usually, the left brain is dominant, which is why
90% of people are right-handed.
B. The temporal lobe.
C. The occipital lobe.
D. The parietal lobe.
B. Bright ideas come from the parietal lobe.
C. The occipital and temporal lobes are at the back of the cerebrum.
D. The occipital lobe is in charge of sound.
B. their temporal lobe is usually dominant
C. their right brain is usually dominant
D. their left brain is usually dominant
So far, scientists have named about 1.8 million living species (物种), and that"s just a small number of
what probably exists on Earth. With so many plants, animal, and other living things covering the planet, it
can be tough to figure out what type of grass is growing by the roadside or what kind of bird just flew by.
A soon-to-be-started Web site might help. An international term of researchers has announced the creation
of Web-based Encyclopedia (百科全书) of Life (EoL). The project aims to list every species on Earth in a
single, easy-to-use reference guide.
To get the encyclopedia started, the creators will use information from scientific databases (数据库) that
already exist. And eventually, in special sections of the site, non-scientists with specialized knowledge will
come to help. Bird-watchers, for example, will be able to input what birds they"ve seen and where. To make
sure the encyclopedia is accurate, scientists will review much of the information added to it.
As the EoL develops, you might find it useful for school projects. The site will feature (以…为特色)
special pages for kids who are studying ecosystems in their neighborhoods. Another convenient feature of
the EoL is that you"ll be able to pick the level of detail you want to see to match your interests, age, and
knowledge.
It now takes years for scientists to collect all the data they need to describes and analyze species. The
creators of the Encyclopedia of Life hope that their new fool will speed up that process.
B. list all living things on Earth
C. work out the number of birds
D. save the existing plants
B. it focuses on different types of grass
C. it provides different levels of information
D. it allows non-scientists to review its data
B. creating a new tool
C. collecting data
D. describing species
province, will begin test-launching (试发射) a satellite the size of a Rubik"s cube.
The one-kilogram Win-Cub satellite, named for its home city and its shape, will be put into low orbit. Once
in space, it can perform for a few months or up to several years, communicating information that could help
find the signs of earthquakes.
There are 80 similar satellite projects worldwide, but this is the first high-school based program of its kind
in Canada. 30 Manitoba high school students are having a hand in designing and building the satellite, in
cooperation with aerospace (航空航天的) experts and 10 students from the University of Manitoba, and with
support from two other organizations.
The Win-Cube project is not something that goes on a piece of paper; it is real-world engineering, allowing
high school students to have an opportunity to learn more about the exciting world of engineering through their
participation in this challenging program. It is also taken as a wonderful example of the unique partnerships
within Manitoba. Designing, building and launching a satellite with high-school participation will bring this world-
class educational project into reality and Manitoba closer to space.
"These Manitoba high school students deserve congratulations for their enthusiasm, innovation (创新), and
a strong love for discovery," said Education, Citizenship and Youth Minister Peter Bjomson. "We want to make
science more relevant (相关的), interesting and attractive to high school students by showing them how
classroom studies can relate to practical experience in the workplace or, in this case, in space," Bjomson added.
The Win-Cube program is mainly named at inspiring a strong desire for discovery on the part of the students.
It also shows Manitoba"s devotion to research and innovation and the development of a skilled workforce-all
important drivers of knowledge-based economic growth.
B. intended for international communication
C. designed like a Rubik"s cube both in shape and size
D. challenged by university students around the world
B. the study of space can be practically made in classrooms
C. Manitoba high schools are famous for the study of space
D. scientific research is too far away from high school students
B. relate studies to practical
C. help high school students study real-world engineering
D. inspire a strong desire for discovery among the students
B. Win-Cube Program
C. Space Co-operation
D. Satellite Launching
One of our biggest fears nowadays is that our kids might some day get lost in a "sea of technology"
rather than experiencing the natural world. Fear-producing TV and computer games are leading to a
serious disconnect between kids and the great outdoors, which will changes the wild places of the world,
its creatures and human health for the worse, unless adults get working on child"s play.
Each of us has a place in nature we go sometimes, even if it was torn down. We cannot be the last
generation to have that place. At this rate, kids who miss the sense of wonder outdoors will not grow up
to be protectors of natural landscapes. "If the decline in parks use continues across North America, who
will defend parks against encroachment (蚕食)?" asks Richard Louv, author of Last Child in the Woods.
Without having a nature experience, kids, can turn out just fine, but they are missing out a huge
enrichment of their lives. That applies to everything from their physical health and mental health, to stress
levels, creativity and cognitive (认知的) skills. Experts predict modern kids will have poorer health than
their parents-and they say a lack of outside play is surely part of it; research suggests that kids do better
academically in schools with a nature component and that play in nature fosters (培养) leadership by the
smartest, not by the toughest. Even a tiny outdoor experience can create wonder in a child. The three-year-
old turning over his first rock realizes he is not alone in the world. A clump of trees on the roadside can be
the whole universe in his eyes. We really need to value that more.
Kids are not to blame. They are over-protected and frightened. It is dangerous out there from time to
time, but repetitive stress from computers is replacing breaking an arm as a childhood rite (仪式) of passage.
Everyone, from developers, to schools and outdoorsy citizens, should help regain for our kids some of
the freedom and joy of exploring, taking friendship in fields and woods that cement (增强) love, respect and
need for landscape. As parents, we should devote some of our energies to taking our kids into nature. This
could yet be our greatest cause.
B. parks are in danger of being gradually encroached
C. Richard Louv is the author of Last Child in the Woods
D. children are expected to develop into protectors of nature
B. be over-protected by their parents
C. be less healthy both physically and mentally
D. change wild places and creatures for the better
B. the natural experience in their growing up
C. the result of their own carelessness in play
D. the effect of their repetitive stress from computers
B. encourage children to protect parks from encroachment
C. show his concern about children"s lack of experience in nature
D. inspire children to keep the sense of wonder about things around
Scientists have found what look like caves on Mars (火星), and say they could be protecting life from
the planet"s terrible environment.
The first caves discovered beyond the Earth appear as seven anysterious black dots on the pictures sent
back by NASA"s Mars Odyssey orbiter. Each as large as a football field, they may be openings into natural
caves below the Martian suface.
"If there is life on Mars, there is a good chance you"d find it in caves," said Jut Wynne, one of the
researchers who noticed the features while working on a US Geological Survey Mars Cave Detection
Program.
Jonathan Clarke, a geologist with the Mars Society of Australia, yesterday described the discovery as
exciting.
One photo taken at night by an infrared imager (红外线成像器) showed one hole to be unusualy warm,
suggesting hot air trapped during the day is flowing out.
"I said:"Wow, that"s a cave"" Dr. Clarke said excitedly." People have been looking for these for a long
time; now we have found them."
He agreed such caves would be perfect places to hunt for life escaping from the bitterly cold,
radiation-soaked (充满辐射的), dry surface.
"Tiny drops of water could collect inside," he said. "If there are gases coming out, they could provide
energy for a whole range of bacteria. A cave is also a protection from radiation; the surface of Mars is
exposed to high levels of space radiation."
The caves probably formed when tube-shaped lave flows (管状岩浆流) spread across the planet long
ago. The outside of the tubes cooled, forming solid walls, while something hotter inside allowed the
remaining have to flow out, forming caves.
B. How scientists found these caves on Mars.
C. Caves on Mars may be full of hot air or a sign of life.
D. Scientist have completely recognized the surface of Mars.
B. the scientists found all the caves at night
C. it is certain that there is life in these caves
D. the surface of Mars is bitterly cold, radiation-soaked and dry
B. they had finally found the caves on Mars
C. such caves would be perfect places to hunt for life
D. scientists had long been looking for these caves
B. water and radiation from space
C. gases and lava
D. water and protection from radiation
- 1下述事实属于哪种物态变化过程? 放在衣箱中的卫生球过一段时间就消失了,这是______现象。冬天,嘴里呼“白气”,这是_
- 2下列数据为常见水果的近似pH,其中呈碱性的是
- 3 Last Sunday I climbed to the top of the hill near my home,
- 4PM2.5,外号“灰霾***手”,专家认为,它将取代抽烟成为肺癌首因。最近,一个有数万网友参与的网上投票活动掀起,他们认为,
- 5桃子的果实发育长大所需的营养物质,主要来源于( )A.叶的光合作用B.茎的输导作用C.根的呼吸作用D.花的受精
- 6按要求回答下列问题:(1 )用标准NaOH 溶液滴定未知浓度的盐酸,用酚酞作指示剂,下列操作中会导致实验结果偏低的是
- 7青藏地区的主要农作物是[ ]A、玉米 B、小麦C、水稻 D、青稞
- 8I finally got the job I dreamed about. Never in all my life
- 9随着2012年脚步临近,央视龙年春晚的节目轮廓也逐一浮现。对每年的春晚,不同年龄、性别、职业的人们往往会作出不同的评价。
- 10三个阻值均为6Ω的电阻,并联使用时,总电阻为_______Ω;串联使用时,总电阻为______Ω。
- 1腰长为4cm,底角为15°的等腰三角形的面积为______cm2.
- 2..—The combination of Chinese culture and modern technologie
- 3—Thank you very much for helping me out of trouble, Bob.—___
- 4漫画《最诱人处最危险》,告诉我们( )A.时时有矛盾B.处处有矛盾C.矛盾具有同一性D.矛盾具有斗争性
- 5我国北方和南方最大的盐场分别是[ ]A.长芦盐场和莺歌海盐场B.莺歌海盐场和长芦盐场C.北方盐场和布袋盐场D.布
- 6下列属于两栖动物的是 [ ]A.娃娃鱼 B.章鱼 C.鳙鱼 D.鱿鱼
- 7阅读下面的文字,完成小题。儒释道互补与心态和合对于和合文化,可以从多角度来解读。有人从中读出一种文化战略,有人从中读出一
- 8因式分解:____________________.
- 9下列行为不属于学习行为的是[ ]A.失去了雏鸟的母鸡无微不至地抚爱着没有母亲的小猫B.鹦鹉学舌C.大山雀打开奶瓶
- 10若数列满足:,其前n项和为,则= 。