题目
题型：同步题难度：来源：
changed the flights across the Atlantic Ocean, leaving hundreds of passengers stuck in airports.
Grimsvom is one of the largest and most active volcanoes in Europe. What makes Grimsvom
different is that it lies under a huge glacier(冰川) of ice up to 12 meters thick. The hot volcano
heats up the ice above it, which then forms a layer(层)of water between the glacier and the volcano.
This layer of water puts pressure on the volcano, keeping it stable. As the water flows out from under
the glacier, the pressure lifts. The lava(岩浆) from the volcano then comes up to the surface. This is
exactly what happened today.
Now, airlines have to make changes to their flights so as not to fly through the clouds of volcanic
ash. According to KLM,one of Europe"s biggest airlines, airplanes cannot go under the cloud or over
it. Going through the cloud can result in ash getting stuck in the airplane"s engines, causing damage to
the plane.
The eruption has also caused problems for animals in Iceland. The volcano left ash and sharp
glasslike rocks all over the countryside. Farmers are keeping their animals inside to stop them from
eating ashcovered grass or the sharp object.
B．It lies under the sea.
C．It is the largest volcano.
D．Its lava affects the airlines.
B．The low water temperature.
C．The thick glacier.
D．The water pressure.
B．Airlines suffer from the loss of planes.
C．It becomes dangerous for animals to eat outside.
D．Farmers have lost many of their animals.
B．a newspaper report
C．a class presentation
D．a geography textbook
答案
核心考点
试题【阅读理解。 A volcanic eruption in Iceland has sent ash across northern Europe. Ai】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
towers and street features that appear in the photo.The hyperlinks lead to information about the
history, services and context of all the features in the photo.You have just hyperlinked your reality.
That might be a little unbelievable, but the technology exists and is no fevered imagination.This
is not a cool small machine invented for the next James Bond movie; this is a working technology
just developed by European researchers.It could be coming to a phone near you, and soon.
This, as the marketing types say, is a game changer.It develops a completely new interface
(界面) that combines webtechnology with the real world.It is big and fresh, but it goes much further
and has much greater influence.
The development of the system is most outstanding because image recognition technology has
long been pregnant with promise, but seemed to suffer from an unending labour.
Now MOBVIS has not only developed image recognition; it has also developed more applications
for the technology; and it has adapted it to the world"s most popular technology: the mobile phone.
The MOBVIS system completely rewrites the rules for exploration and interaction with your physical
environment.The system begins with panoramas (一连串景象)．These panoramas form the basis of a
city database.It can match buildings, towers, banners and even logos that appear in the panoramas. A
user simply takes a picture of the street feature, MOBVIS compares the user"s photograph to the
panoramas and then identifies the buildings from the picture you take and the relevant links are returned.
Then you simply click on the links, using a touchscreen phone, and the MOBVIS system will provide
information on the history, art, architecture or even the menu, if it is a restaurant, of the building in question.
B．A popular mobile phone.
C．A cool small machine.
D．An image recognition system.
B．It is a little unbelievable and just a fevered imagination.
C．It has taken an unending labour to bring the technology into our lives.
D．It will encourage the users to take more pictures of the street features.
b．MOBVIS recognizes the picture and links are returned.
c．A user touches the links on the phone screen.
d．A user takes a picture of the street feature.
e．MOBVIS provides information in question.
A．a; e; c; d; b
B．a; d; b; c; e
C．d; c; e; a; b
D．c; a; e; b; d
B．the writer is trying to promote the sales of the MOBVIS system
C．this new technology will soon be very popular in our lives
D．the sales of mobile phones will decrease as MOBVIS comes on market
By generating the proper brainwaves-picked up by a cap with electrodes(电极)that
sense the signals and reflect a person"s instructions-scientists can instruct a humanoid
robot to move to specific locations and pick up certain objects.
The commands are limited to moving forward, picking up one of two objects and
bringing it to one of two locations.The researchers have achieved 94 percent accuracy
between the thought commands and the robot"s movements.
"This is really a proofofconcept demonstration,"said Rajesh Rao,a researcher from
the University of Washington who leads the project."It suggests that one day we might
be able to use semiautonomous robots for such jobs as helping disabled people or
performing routine tasks in a person"s home."
The person wearing the electrode cap watches the robot"s movement on a computer
screen through two cameras installed on and above the robot.
When the robot"s cameras see the objects that are to be picked up they pass on the
information to the user"s computer screen.Each object lights up randomly on the computer
screen.When a person wants something to be picked up and it happens to light up,the brain
registers surprise and sends this brain activity to the computer and then to the robot as the
choice object.The robot then proceeds to pick up the object.
A similar program is used to decide where the robot will go.
"One of the important things about this demonstration is that we"re using a "noisy" brain
signal to control the robot,"Rao said."That means we can only obtain brain signals indirectly
from sensors on the surface of the head,and not where they are generated deep in the brain.
As a result,the user can only generate highlevel commands such as indication which object to
pick up or which location to go to,and the robot needs to be autonomous enough to be able
to execute such commands."
In the future,the researchers hope to make the robot more adaptive to the environment by
having them carry out more complex commands.
B．It can be made humanoid.
C．It can be used to help the disabled.
D．It has high intelligence itself.
B．It can move forward, pick up both objects and bring them to either location.
C．It can only move forward,pick up one object and put it in one location.
D．It can read all human thoughts and do as instructed.
B．will be widely used in our daily routines soon
C．is autonomous enough to complete complex commands
D．is only limited to doing routine work at home
B．how the robot picks up the right object
C．how the person controls the robot
D．how the robot finds out where to go
Everyone is forgetful, but as we age, we start to feel like our brains are slowing down a bit and
that can be a very annoying thing.__1__ Read on for some techniques worth trying.
1．__2__
People who regularly made plans and looked forward to upcoming events had a 50 percent
reduced chance of Alzheimer"s disease (早老性痴呆症), according to a recent study.__3__
Something as simple as setting a goal to have a weekly coffee date with a friend will do.There"s
evidence that people who have a purpose in life or who are working on long or shortterm goals
appear to do better.In other words, keep your brain looking forward.
2．Go for a walk.
Mildly raised glucose (葡萄糖) levels can harm the area of the brain that helps you form
memories and physical activity can help get blood glucose down to normal levels.In fact, exercise
produces chemicals that are good for your brain.__4__
3．Learn something new.
Take a Spanish class online, join a drawing club, or learn to play cards.A study found that mental
stimulation (刺激) limits the weakening effects of aging on memory and the mind.But the best thing
for your brain is when you learn something new and are physically active at the same time.__5__
Or go dancing with your friends.
B．This can be especially harmful to the aged.
C．It should be something like learning gardening.
D．So take a few minutes each day to do some reading.
E．But don"t worry if your schedule isn"t filled with lifechanging events.
F．Luckily, research shows there is a lot you can do to avoid those moments.
G．In other words, when you take care of your body, you take care of your brain.
Some parents can understand that wish, but it must first be recognized that the copy would be a
new baby and not the lost child. Here lies the_difficulty,_for the sad parents are seeking not a new
baby but a return of the dead one. Since the original would be fondly remembered as having particular
talents and interests, would not the parents expect the copy to be the same? It is possible, however,
that the copy would develop quite differently. Is it fair to the new child to be placed in a family with
such unnatural expectations?
Copying is also suggested as a means by which parents can have the child of their dreams. Couples
might choose to have a copy of a film star, baseball player or scientist, depending on their interests.
But because personality is only partly the result of genetic inheritance, conflicts would be sure to arise
if the cloned child failed to develop the same interests as the original. What if the copy of Einstein
shows no interest in science? Or the baseball player turns to acting? Success_also_depends_on_
fortune. What if the child does not live up to the hopes and dreams of their parents simply because
of bad luck?
Every child should be wanted for itself, as a person. In making a copy of oneself or some famous
person, a parent is purposely specifying the way he or she wishes that child to develop. In recent
years, particularly in the U．S., much importance has been placed on the right of individuals to
reproduce in ways that they wish. So I suggest there should be a greater need to consider the interests
of the child and to reject these suggested uses of cloning.
B．it"s difficult to give birth to a new baby
C．the dead child can"t come back again
D．the cloned baby can"t replace the lost child
B．to exchange their children
C．to develop the same interests as their child
D．to succeed in making fortune
B．the child does not live up to the parents" hopes
C．the cloned child fails to develop the same interest as the original
D．the baseball player turns to acting
B．parents can"t expect to get the lost child back by cloning a new baby
C．much importance should be placed on the right of parents to reproduce babies in ways that they wish
D．every child should be wanted as a unique individual
caused by human beings.
The noise that affects sea creatures comes from a number of human activities.It is caused
mainly by industrial underwater explosions, ocean drilling, and ship engines.Such noises are
added to natural sounds.These sounds include the breaking of ice fields, underwater earthquakes,
and sounds made by animals themselves.
Decibels (分贝) measured in water are different from those measured on land.A noise of one
hundred and twenty decibels on land causes pain to human ears.In water, a decibel level of one
hundred and ninetyfive would have the same effect.
Some scientists have proposed setting a noise limit of one hundred and twenty decibels in
oceans.They have observed that noises at that level can frighten and confuse whales.
A team of American and Canadian scientists discovered that louder noises can seriously
injure some animals.
The research team found that powerful underwater explosions were causing whales in the
area to lose their hearing.This seriously affected the whales" ability to exchange information and
find their way.Some of the whales even died.The explosions had caused their ears to bleed and
become infected.
Many researchers whose work depends on ocean sounds object to a limit of one hundred
and twenty decibels.They say such a limit would mean an end to important industrial and scientific
research.
Scientists do not know how much and what kinds of noises are harmful to ocean animals.
However, many scientists suspect that noise is a greater danger than they believed.They want
to prevent noises from harming creatures in the ocean.
B．The sound of voices.
C．Manmade noise pollution.
D．The sound of steps
B．ocean drilling
C．underwater earthquakes
C．the breaking of ice fields
B．Different places may have different types of noises.
C．The decibel is not a suitable unit for measuring underwater noise.
D．Different ocean animals may have different reactions to noises.
B．They will protect animals from harmful noises.
C．They will try to set a limit of 120 decibels.
D．They will study the effect of ocean noise pollution.
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