题目
题型：江西省竞赛题难度：来源：
can do your homework more quickly. Learning to study is not difficult.
The first thing to remember is that you must be willing to learn. It doesn"t mean that you must always
like the subject. It does mean, however, that you must be willing to do whatever is necessary to learn. Try
to understand why it is important and how it will help you now and later to do and learn other things.
Knowing mathematics facts will be useful in your whole life. Knowing how to spell makes any kind of
writing easier. Sometimes the subject that you think is going to be uninteresting will be exciting when you
begin to work at it and understand it more clearly. Learning things can be fun if you are willing to work
with them.
Here"s some advice for you: have a certain time each day and a quiet place with good lighting for study, so that you can concentrate on your study without interruptions; have everything ready before you sit
down to study, a dictionary, paper, a pen and books; be sure you understand what you should learn
before you start; read carefully and pay special attention to the most important things; when memorizing,
first find out the main parts and then recite the whole thing; check your homework after you finish it; never
forget the importance of review and preview.
Don"t try to spend a lot of time researching learning methods. There are many students who know many good learning methods but don"t study well. They forget that the most useful learning method is to study
hard.
B. to make the readers be interested in study
C. to tell the importance of self teaching
D. to tell the students how to study well
B. you must follow the teacher
C. you must enjoy learning
D. you must study hard
B. To study at any possible time and place.
C. To review and preview
D. To pay attention to the most important things.
B. Finding the best learning method is the most important in learning.
C. Knowing good methods, you can"t be good at study without working hard.
D. Once we have mastered a good learning method, we can improve our study greatly.
B. Better late than never
C. Study comes first
D. Good methods, good results.
答案
核心考点
试题【阅读理解。 Knowing the best way to study will help you to be a better student. By】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
inspired by insects" hard outer shells. The material"s inventors say it has a number of possible uses and
someday could provide a more environmentally friendly alternative to plastic. The material, made from
shrimp (虾) shells and proteins produced from silk, is called "shrilk." It is thin, clear, flexible and strong.
A major benefit of the material is its biodegradability. Plastic"s toughness and flexibility represented a
revolution in materials science during the 1950s and "60s. Decades later, however, plastic"s very
durability (耐用性) is raising questions about how appropriate it is for one-time products such as plastic
bags, or short-lived consumer goods, used in the home for a few years and then cast into a landfill where
they will degrade for centuries. What is the point of making something that lasts 1,000 years?
Shrilk not only will degrade in a landfill, but its basic components are used as fertilizer (肥料), and so
will enrich the soil.
Shrilk has great potential, the inventors said. Materials from which it is made are plentiful in nature,
found in everything ranging from shrimp shells, insect bodies to living plants. That makes shrilk low cost,
and its mass production possible should it be used for products demanding a lot of material.
Work on shrilk is continuing in the lab. The inventors said the material becomes flexible when wet, so
they"re exploring ways to use it in wet environments. They"re also developing simpler production
processes, which could be used for non-medical products, like for computer cases and other products
inside the home. They"re even exploring combining it with other materials, like carbon fibers, to give it
new properties.
B. interesting name
C. major features
D. basic elements
B. Producing it cheaply.
C. Developing its properties quickly.
D. Evaluating its contributions fairly.
B. it can be found in living things
C. its mass production has been realized
D. its raw materials are abundant in nature
B. Testing shrilk"s use in wet conditions.
C. Making shrilk out of used household goods.
D. Improving shrilk"s flexibility for medical purposes.
B. Benefits of Insects in Scientific Research
C. The Harm of One-time Products
D. A Possible Alternative to Plastic
America"s farmland. It has little to do with the usual challenges, such as flood, rising fuel prices
and crop-eating insects. The country"s farmers are getting older, and there are fewer people standing in
line to take their place. National agricultural census (普查) figures show that the fastest-growing group of
farmers is the part over 65. Merrigan is afraid the average age will be even higher when the 2012 statistics are completed.
Merrigan, a former college professor, is making stops at universities across the country in hopes of
encouraging more students to think about careers in agriculture. Aside from trying to stop the graying of
America"s farmers, her work is made tougher by a recent blog posting that put agriculture at No. 1 on a
list of "useless" college degrees. Top federal agriculture officials are talking about the posting, and it has
the attention of agricultural organizations across the country.
"There couldn"t be anything that"s more incorrect," Merrigan said. "We know that there aren"t enough
qualified graduates to fill the jobs that are out there in American agriculture."
In addition, a growing world population that some experts predict will require 70% more food
production by 2050, she said.
"I truly believe we"re at a golden age of agriculture. Global demand is at an all-time record
high, and global supplies are at all-time record lows," said Matt Rush, director of the Texas Farm
Bureau. "Production costs are going to be valuable enough that younger people are going to have the
opportunity to be involved in agriculture."
The Department of Agriculture has programs aimed at developing more farmers and at increasing
interest in locally grown food. The National Young Farmers" Coalition has also been pushing for state and
federal policy changes to make it easier for new farmers.
Ryan Best, president of Future Farmers of America, has been living out of a suitcase, traveling
the country and visiting with high school students about careers in agriculture. The 21-year-old Best
hopes his message-that this is a new time in agriculture-will motivate the next generation to turn
around the statistics. "Never before have we had the innovations (创新) in technology which have
led to agriculture in this country being the most efficient it has ever been," he said. "There"s really a place
for everybody to fit in."
B. Higher fuel prices.
C. More natural disasters.
D. Lower agricultural output.
B. To select qualified agriculture graduates.
C. To clarify a recent blog posting.
D. To talk more students into farming careers.
because__________..
B. global food supplies will be even lower
C. investment in agriculture will be profitable
D. America will increase its food export
B. To increase agricultural production.
C. To bring down the average age of farmers.
D. To invest more in agriculture.
put the drugs inside a capsule, protecting them from the body-and the body from them-until they
can be released at just the right spot. There are lots of ways to trigger (引发) this release, including
changing temperature, acidity, and so on. But triggers can come with their own risks-burns, for example.
Now, researchers in California have designed what could be a harmless trigger to date: shining near-infrared light (NIR, 近红外线) on the drug in the capsule.
The idea of using light to liberate the drug in the capsule isn"t new. Researchers around the globe have
developed polymers (聚合物) and other materials that begin to break down when they
absorb either ultraviolet (UV, 紫外线) or visible light. But tissues also readily absorb UV and
visible light, which means the drug release can be triggered only near the skin, where the light can
reach the capsule. NIR light largely passes through tissues, so researchers have tried to use it as a
trigger. But few compounds (化合物) absorb NIR well and go through chemical changes.
That changed last year when Adah Almutairi, a chemist at the University of California, San
Diego, reported that she and her colleagues had designed a polymer that breaks down when it
absorbs NIR light. Their polymer used a commercially available NIR-absorbing group called
o-nitrobenzyl (ONB). When they catch the light, ONB groups fall off the polymer, leading to its
breakdown. But ONB is only a so-so NIR absorber, and it could be poisonous to cells when it
separates from the polymer.
So Almutairi and her colleagues reported creating a new material for capsules that"s even better.This
one consists of a long chain of compounds called cresol groups linked in a polymer. Cresol contains
reactive(易反应的) components that make it highly unstable in its polymeric form, a feature Almutairi
and her colleagues use to their advantage. After polymerizing the cresols, they cap each reactive
component with a light-absorbing compound called Bhc. When the Bhcs absorb NIR light, the reactive
groups are exposed and break the long polymer into two short chains. Shining additional light continues
this breakdown, potentially releasing any drugs in the capsule. What"s more, Almutairi says, Bhc is 10
times better at absorbing NIR than is ONB and is not poisonous to cells.
B. NIR light.
C. Acidity change.
D. UV light.
B. It falls off the polymer and triggers drug release.
C. It has not come onto the market up till now.
D. It is not effective enough and could be poisonous.
B. formed
C. exposed
D. combined
enabling them to explore the outside universe and conduct many experiments. However, nothing like
that exists for our oceans, and thanks to the high water pressure, ocean researchers are able to explore
what lies undersea for very short periods of time.
They are therefore never able to fully explore the deep inside areas of our oceans. However, if
French architect Jacques Rougerie has his way, that will change soon.
Jacques has designed a ship that will allow researchers to spend a long period of time observing the
sea life and conducting experiments. The huge l67ft. ship, named "Sea Orbiter", consists of two areas-one
above the water where the scientists and crew will live, and a lower pressur
ized deck (甲板), where scientists will be able to spend as much time as they wish. Since it is powered by sea currents and wind,
he expects it to drift (漂流) along the oceans slowly, taking about two years to circumvent the globe.
Jacques will make their life as comfortable as possible in the ship. Besides being equipped with the
latest sailing tools and communication equipment, the ship will also have a gym, a television and a DVD
player! And these guys will not be eating freeze-dried food like astronauts. Instead, Jacques, an accomplished chef, plans on cooking them delicious meals every day.
The biggest problem to this giant ship is the cost, which is expected to be over $500 million-per ship!
However, Jacques, who strongly believes that the secrets of our oceans may be the key to solving global
warming and a vital supply for food and medicine in the future, is confident he will be able to convince
governments all over the world to help out, and expects to start construction on not one, but four or five
of these amazing ships soon!
B. Because it"s too cold in deep ocean.
C. Because time for experiments is too limited.
D. Because it"s dangerous to observe the sea life.
B. go around
C. travel through
D. move into
B. living a comfortable life helps to do the ocean research quickly
C. it"s much more expensive to eat freeze-dried food
D. researchers on Jacques " ship will live more comfortably than astronauts
B. To find supply for medicine in the future.
C. To draw governments" attention to the construction of the ship.
D. To solve the global warming.
B. A new way to explore the deep oceans
C. A great architect-Jacques Rogerie
D. Travel around the globe in Sea Orbiter
the country. The new measures were released by the Australian Department of Tertiary Education, Skills, Jobs and Workplace Relations in September and will take effect in mid-2012. As a result, the student visa application process for overseas students has been simplified, and the deposit (押金) required to study in Australia has been reduced. Language requirements for overseas students have also been eased.
Also, o
verseas students receiving a higher education in Australia will be granted a working visa lasting from two tofour years after graduation, as long as they meet the basic IELTS requirement. "This change will definitely make Australia a more attractive destination for Chinese students planning to study overseas," says Wang Lan , a consultant from Education International Cooperation 
Group (EIC), a Beijing-based company that provides services to students wishing to study overseas. However, in the past few years,
many of Wang"s student clients (客户) could not start studies in Australia because they did not meet the
language requirements, visa processing took a long time and deposit regulations were tough. The change
in policy is good news for the parents of students wishing to study in Australia, Wang says.
A 22-year-old female student surnamed Li, in Beijing, who is planning to do her postgraduate
studies in Australia, learned about the policy change several weeks ago. "According to the previous
deposit requirement for my student visa, my family was required to put down 550,000 yuan ($86,850).
Now we only need to prepare 410,000 yuan. This is a relief for my parents," Li says.
She also says that the two to four years working visa makes her feel much clearer about her study plans. "I believe several years of working experience abroad will strengthen my competitiveness when I
return to China," she says. Gaining a competitive advantage is the major reason for Chinese students to
study abroad, according to the report by
EIC.B. Australia is a most attractive place for students in China.
C. Australia widens window of opportunity for international students.
D. More students will work in Australia after their graduation.
B. The deposit required to study in Australia has been reduced.
C. Language requirements for overseas students have been more difficult.
D. After graduation, some overseas students can get a working visa in Australia.
B. more Chinese students will choose to live in Australia.
C. the opportunities to work in Australia decrease for overseas students
D. more Chinese students will choose to further their educ
ation in AustraliaB. 140,000 yuan
C. 410,000 yuan
D. 86,850 yuan
B. They can earn more money in Australia.
C. Their working experience can make them stay in Australia forever.
D. They have to do so according to the new regulations.
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