49 câu hỏi
What does this passage mainly discuss?
Good nutrition
Food with fiber
Ways to keep your teeth healthy
Fluoridization and cavities
The word “it” refers to_________.
dental floss
bacteria
removal of plaque
plaque
According to the passage, all of the following statements about plaque are true EXCEPT_________.
It consists of acid producing bacteria
It is not affected by eating sweets
It can be removed from teeth by brushing and flossing
It reduces the positive effect of saliva
We can infer from the passage that one benefit of fluoride to healthy teeth is_________.
It strengthens tooth enamel
It stimulates saliva production
It makes teeth whiter
It is a replacement for brushing and flossing in dental care
What can be concluded from the passage about sweets?
All sweets should be avoided.
Sweets should be eaten with care.
It is better to eat sweets a little at a time throughout the day.
Sticky sweets are less harmful than other sweets.
The author of the passage states that the amount of acid produced by the bacteria in your saliva increases_________.
with the amount of sweets you eat
with the number of times you eat sweets
if you eat sweets with your meals
if you eat sticky sweets
The word "scrape off" is closest in meaning to_________.
repel
rub together with
remove
dissolve
According to the passage, in the past, _____.
parents had no right to interfere their children's marriage
Vietnamese couples were free to make a decision on the marriage
getting married at an early age was not allowed
Vietnamese marriage was decided by parents and family
In former days, the fact that a bride and groom had only first met just on the day of their engagement or marriage was _________.
popular
uncommon
strange
surprising
Which sentence is referred Vietnamese modern marriage?
Couples do not get married at quite young ages.
Marriage is quite westernization.
Most young people do not have their marriage based on love.
All marriages are arranged by parents and family.
According to the passage, which of the following is true about the traditional Vietnamese wedding?
Brides’ parents decide the date and time of the marriage ceremony.
An engagement ceremony is usually taken place half a year or so before the wedding.
Oversea Vietnamese people do not like to organize a traditional wedding.
Many of the old-aged customs practiced in a traditional Vietnamese wedding have disappeared.
The word “array” in paragraph 3 is closest in meaning to _______.
line
process
group
progress
The word “banquet” in paragraph 3 is closest in meaning to _______.
buffet
big party
ceremony
small party
According to the passge, which does not exist in a Vietnamese wedding party?
guests
dishes
gifts
firecrackers
What does the passage mainly discuss?
Types of graduate degrees
Jobs on Wall Street
Changes in enrollment for MBA schools
How schools are changing to reflect the economy
The underlined word “one” in paragraph 2 most likely refers to
MBA degree
decrease
graduate
factor
The underlined word “plush” in paragraph 2 is closest in meaning to which of the following?
expensive
affordable
comfortable
competitive
Which of the following business schools has NOT shown a decrease in enrollment?
Harvard
Yale
Stanford
Princeton
The underlined phrase “the trend of” in paragraph 1 could be best replaced by which of the following?
the extraction from
the advantage of
the movement toward
the drawback of
Which of the following descriptions most likely applies to Wall Street?
a center for international affairs
a neighborhood in New York
a major financial center
a shopping district
According to the passage, which of the following is a cause of declining business school enrollments?
declining population
low salary and foreign competition
lack of necessity for an MBA
fewer MBA schools
The author generally believes that children _____.
can learn a great deal from the Net
should never be allowed to use the Net
should not have unsupervised access to the Net
should be allowed to use the Net today
According to the first paragraph, which group is most likely to be worried about children’s use of the Internet?
parents
teenagers
business people
People who work in institutions
In chat rooms, _____.
people communicate face-to-face
people may give a false impression
you know who you are talking to
parents and children communicate with each other
The expression pass themselves off as in paragraph 2 means ____.
look like
participate
pretend to be
contribute
What can we understand about the face-to-face meetings mentioned in paragraph 2?
All people in chat groups have them.
They may turn out to be harmful to children.
They help to communicate better.
They give children false information.
The racist and political extreme views mentioned in paragraph 3 are example of _____.
what you see on some Internet sites
what children think they use the Internet
parental intervention
the huge amount of information available.
We can understand from the passage that _____.
there is not enough supervision on the Internet
politicians control the Internet
parents should not intervene
the Internet leads to criminal activity
It seems that the main point the author is trying to make about the Internet is that it _____.
can be dangerous
provides unlimited access to information
is beneficial
should only be used by adults
What does the passage mainly discuss?
How the immune system of animals and the defense mechanisms of plants differ
How plant defense mechanisms function
Theories on active plant defense mechanisms
The success of parasites in resisting plant defense mechanisms
The phrase "subject to" in line 1 is closest in meaning to
attractive to
strengthened by
classified by
susceptible to
The word "puncture" in line 8 is closest in meaning to
surround
pinch
pierce
cover
The word "which" in line 13 refers to
barriers
tissues
substances
insects
Which of the following substances does the author mention as NOT necessarily being toxic to the Colorado beetle?
Alkaloids
Glycosides
Resins
Tannins
Why does the author mention "glycoproteins" in line 17?
To illustrate how chemicals function in plant defense
To emphasize the importance of physical barriers in plant defense
To compare plant defense mechanisms to the immune system of animals
To introduce the discussion of active defense mechanisms in plants
Where in the passage dose the author describe an active plant-defense reaction?
Lines 1-3
Lines 13-15
Lines 19-23
Lines 4-6
The passage most probable continues with a discussion of theories on
the basis of passage plant defense.
the principles of the hypersensitive response.
how chemicals inhibit a parasitic relationship.
how plants produce toxic chemical.
What does the passage mainly discuss?
The information contained in pheromones
The mass migration of ants
How ants mark and follow a chemical trail
Different species of ants around the world
The word “intermittently” in paragraph 1 is closest in meaning to
roughly
incorrectly
rapidly
periodically
The phrase “the one” in paragraph 2 refers to a single
message
food trail
dead ant
species
According to the passage, why do ants use different compounds a trail pheromones?
To reduce their sensitivity to some chemicals
To indicate how far away the food is
To attract different types of ants
To protect their trail from other species
The author mentions the trail pheromone of the leafcutter ant in paragraph 2 to point out
a type of ant that is common in many parts of the world
how little pheromone is needed to mark a trail
the different types of pheromones ants can produce
that certain ants can produce up to one milligram of pheromone
According to the passage, how are ants guided by trail pheromones?
They sense the vapor through their antennae.
They avoid the vapor spaces by moving in a straight line.
They concentrate on the smell of food.
They follow an ant who is familiar with the trail
According to the passage, the highest amount of pheromone vapor is found
in the source of food
in the receptors of the ants
under the soil along the trail
just above the trail
When did the the Pilgrims make a difficult trip to across the ocean from England?
in 1863
in 1621
in 1830
in 1620
The Pilgrims immigrated to the New World because _____.
They wanted to search for religious freedom.
They wanted to be taught how to plant corn.
They wanted to have more land to cultivate.
They wanted to make a difficult trip.
According to the passage, today’s Thanksgiving _____.
is only celebrated in Massachustets
is a day on which the Pilgrims eat deer
is different from the Pilgrims’s Thanksgiving in many ways
is just like the Pilgrims’s Thanksgiving
Which of the following is NOT true about Thanksgiving?
It is celebrated on the fourth Thursday on November.
It is a day on which Americans celebrate and give thanks.
Americans usually have turkey, cranberry sauce and pumpkin pie for this occasion.
It became a national holiday thanks to President Lincoln’s 40-year efforts.
The word “they” in paragraph 3 refer to _____.
families
the Pilgrims
thanks
the Native Americans