Section
Set 1-1
The Pueblo Indians are descendants of a people
known as
the Anasazi,
a name given to
them
by
the Navajo Indians.
The Anasazi began to build homes of many stories
about AD 700.
Between AD 1000 and 1300,
Pueblo culture developed greatly
in what is now nor
thern Arizona, nor
thern New Mexico, sou
thern Colorado,
and Sou
thern Utah.
By 1300,
many Pueblo had moved south
to
the fertile valleys
of
the Rio Grande and its branches.
Some Pueblo Indians built villages
in
the valleys,
and o
thers lived
in desert and mountain areas.
Desert surrounded many of
the valleys,
and
the people set up irrigation systems
so
they could grow crops.
Pueblo women ga
thered berries and o
ther foods,
and
the men hunted game.
Pueblo villages consisted of stone or adobe structures
that resembled apartment buildings.
These homes had
as many as four stories,
and
the Indians used ladders
to reach
the upper levels.
Some families of grandparents, parents, children, aunts,
and uncles lived
in two or more connected dwellings.
The villages were governed
by religious leaders.
The Pueblo held many religious ceremonies
to promote harmony and order
in
the universe.
They believed
that if harmony and order in
the universe were maintained,
the spirits would ensure abundant game
and provide sufficient rain
for
their crops.
Pueblo men performed kachina dances,
in which
they represented spirits
of
the earth, sky, and water.
The dancers wore masks
that symbolized
the spirits.
Most pueblos had subterranean chambers
called kivas
that were used
for ceremonies and meetings.
What is
the best title
of
the passage?
The life of Pueblo Indians
The author implies in paragraph 1
that
the Anasazi Indians' architecture was highly developed.
The word o
thers in paragraph 2
refers to Indians.
The word game in paragraph 2
is closest
in meaning animals.
Look at
the word stories in paragraph 3.
Click on
the word
in
the Bold text
which is similar
in meaning to this world.
According to
the passage,
which of
the following is not represented
in kachina dances performed
by
the Anasazi Indians?
According to paragraph 3,
the author implies that
Pueblo Indians had a large family
consisting of many generations.
Look at
the word
they in paragraph 4.
Click on
the word
in
the BOLD text
which this word refers to Pueblo men.
According to
the passage,
what is a kiva?
an underground room for religious rituals.
All of
the following statements can be supported
by
the author
EXCEPT that Pueblo Indians were those
who developed advanced agricultural techniques.
Click on
the paragraph
in which
the author describes
the building materials
of Pueblo Indians.
Set 1-2
Permafrost, or permanently frozen ground,
is part of
the solid part
of
the earth's rocky crust(or lithosphere),
in which a naturally occurring temperature
below 0 degrees
has existed
for two or more years.
The formation and maintenace of permafrost requires
a mean annual temperature
below freezing.
Ground shading and insulation
by ground cover
such as moss
is favorable to permafrost.
Once
the permafrost is established,
it stops
the infiltration of ground water
and forces melt
and rain water to escape
by surface drainage.
The mosses that form
on
the surface
impede drainage and permafrost areas develop
marsh and tundra characteristics.
Permafrost is of great importance
in
the engineering and design
of pipelines, roads, railroads, and training ranges and usages.
The frozen ground forms an extremely strong and stable foundation material
if it is kept
in a frozen state.
However, if permafrost is allowed to thaw,
the soil becomes extremely weak and foundation failures
are very common.
As temperature is
the main control
on
the occurrence of permafrost
it can exist only in areas
where
the equilibrium temperature,
between
the amount of heat lost
from
the ground in winter
and that gained
from
the atmosphere in summer,
plus geo
thermal heat,
remains continuously below 0'C-,
continued global warming,
with even a moderate rise
a few degrees of temperature,
is highly likely to have far-reaching effects
on permafrost
throughout
the world.
A general warming will probably lead
to
the widespread disintegration of permafrost,
particularly in those regions
where ground temperatures are warmer
than about -2'C.
In
the latitudes of subarctic areas,
the sporadic discontinuous permafrost will be
the first
to disappear.
As
the mean annual ground temperature rises
and its thawing iso
therm progress
in a nor
therly direction,
increasingly greater areas of permafrost will vanish.
Such effects of global warming would create many alterations
to
the existing landscape,
particularly in areas
of abundant ground ice,
lying in
the zone
of discontinuous permafrost.
The ground would undergo subsidence and dislocation,
thus leading to failure
of foundations and o
ther engineering structures.
Drainage would be altered such
that while some lakes emptied,
o
thers would form.
Thermokarst topography would develop in areas
of ice-rich permafrost
because of
the thawing process;
also, landslide activity and erosion of riverbanks
and coastal features would accompany
the thaw.
With increased global warming,
however,
the concomitant destruction of permafrost
and subsequent alteration of
the landscape
would continue.
Very large volumes of
these gases are presently trapped
beneath
the permafrost
or are stored within it.
They commonly occur in frozen peatlands
and o
ther wetlands
and may exist also
as shallow accumulations
of natural gas hydrates.
In any case,
they pose a hazard
in
the event of global warming
because of
their capacity
to hold heat
and to inhibit it
from escaping
the upper atmosphere.
As global warming increases,
so would
the rate of release
of
these gases which,
in turn,
would worsen
the situation.
Set 1-3
During
the last third of
the nineteenth century,
an extraordianry group of American inventors added
to
the world's knowledge.
Some inventions gave rise to new industries;
a few actually changed
the quality of life.
The number of patents issued to inventors
reflected
the trend.
Between 1790 and 1860,
the U.S. Patent Office issued just 36,000 patents;
in
the decade of
the 1890s alone,
it issued more than 200,000.
Some of
the inventions transformed communications.
In 1866,
Cyrus W, Field improved
the transatlantic cable
linking
the telegraph networks
of Europe and
the United States.
By 1900,
land and submarine cables reached around
the world.
Diplomats and business leaders could now "talk" to
their counterparts
in Berlin or Hongkong.
Even before
the telephone,
the cables quickened
the pace of diplomacy,
revolutionized journalism,
and allowed business to expand and centralize.
The typewriter(1867), stock ticker(1867), cash register(1879),
and adding machine(1888) helped business transactions.
High-speed looms and sewing machines transformed
the clothing industry,
which for
the first time in history turned out
ready-made clo
thes for
the masses.
There were new processes
for flour, canned meat, vegetables, condensed milk,
and even beer.
Refrigirated railroad cars, ice-cooled, brought fresh fruit
from Florida and California to all parts of
the country.
In
the 1870s,
Gustavus F, Swift, a Chicago meatpacker,
hit on
the idea of using
the cars
to distribute meat nationwide.
Setting up "dissembly" factories to butcher meat
Henry Ford later copied
them for his famous "assembly" lines,
he started what a newspaper called an "era of cheap beef".
No innovation, however, rivaled in importance
the telephone and
the use of electricity
for light and power.
The telephone was
the work of Alexander Graham Bell,
a teacher of
the deaf.
Bell experimented with ways
to transmit speech electrically,
and he developed electrified metal disks
that converted sound waves
to electrical impulses and back again.
On March 10, 1876,
he transmitted
the first sentence
over a telephone: "Mr. Watson, come here; I want you."
By 1905,
there were ten million telephones in
the country-
one for almost every ten people.
Set 1-4
An insect orients itself by making orientation
responses to
the stimuli
it receives.
Formerly, insect behavior was described
as a series of forced movements
in response to stimuli.
That hypo
thesis has been supplanted by one
that holds that an insect has a central nervous system
with built-in patterns of behavior or instincts
that can be called forth
by environmental stimuli;
these instincts are modified
by
the insect's internal state,
which has been affected by preceding stimuli.
Searching for food or an egg-laying site, catching prey, and mating
are a few examples of complex behavior.
Experimental studies of details of behavior have provided
significant information
about
the properties of
the sense organs.
Patterns of behavior range
from comparatively simple reflex responses
such as
the avoidance of adverse stimuli,
the grasping of a rough surface on contact with
the claws
to
the elaborate behavioral sequences
involved in hunting, capturing, and eating prey.
An interesting example of a behavioral pattern is
that found in
the leaf-cutter bee Megachile.
The female bee first locates a site
for its nest in rotten wood
and shapes
the nest into a long tunnel;
then it seeks out preferred shrub leaves
from which to build a cell
and cuts first a disc for a cell cap,
then a series of oval pieces for
the walls.
After preparing
the nest,
it stores a mixture of pollen and honey,
lays an egg,
and finally closes
the cell with more cut leaves.
The leaf-cutter bee repeats this sequence
until
the nest is filled.
Each act can be performed only
in this set sequence.
The insect does not stop
to repair any damage to
the nest
but proceeds undeterred to
the next step
in its behavioral pattern.
The honeybee society is more flexible
that of
the leaf-cutter bee.
Behavioral sequences of individuals are predictable,
but
the choice of acts or duties within
the hive
can be influenced
by
the needs of
the colony.
A capacity for learing does exist,
and must exist,
in any insect
that has to find its nest;
but learning capacity plays a relatively small part
in
the overall pattern of honeybee behavior.
Both in complexity of behavior and learning capacity,
solitary bees and wasps are
the equals
of social wasps or honeybees.
Social insects, however, have developed a division of labor
in which
the members must do
the work
required at
the proper time.
If
the society is to succeed,
its needs must be communicated to
the individual,
and
the individual must act.
These needs may be met
by a temporary change in behavior
during which appropriate instinctive acts are performed
or by changes in development
that lead to
the appearance of appropriate castes.
Commonly, both behavioral and developmental change are initiated
by pheromones
which act as chemical messengers
that convey information
from one member of a colony to ano
ther.
Insect societies are gigantic families,
the offspring of a single female.
In
the honeybee
the single queen in
the hive secretes
the pheromone
known as
the queen substance;
it is taken up
by
the workers
and passed throughout
the colony
by food sharing.
So long as
the queen substance circulates,
all members are informed
that
the queen is present.
If
the workers are deprived fo queen substance,
they proceed at once
to build queen cells
and feed
the young larvae
with a special salivary secretion
known as royal jelly
to produce more queens.
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