1
In the past two years, the market price of Yangtze River knife fish has shown a significant rebound. This is because the catch of knife fish in the past two years is only
a fraction of what it was two or three decades ago, and there is also a considerable difference compared to five years ago.
The above statement is based on the following ( ) premise.
A. The end of March is the peak period for knife fish prices
B. Knife fish is known as the “first fresh of the Yangtze River”
C. The fishing operations for Yangtze River knife fish are greatly affected by tidal fluctuations
D. The challenges of artificial breeding for knife fish have not yet been resolved
Click the blank area to see the answer
[Answer] D. Analysis: The premise states that the decrease in the catch of knife fish leads to a rise in the price of Yangtze River knife fish. Option D states that
besides fishing, the unresolved issues of artificial breeding for knife fish also support the fact that the price has risen due to the reduced quantity, which is the premise for the reasoning to hold. The other three options are irrelevant. Therefore, the answer is D.
2
A certain unit’s personnel system stipulates that only those who perform well and have no instances of tardiness or early leave can receive attendance rewards or year-end bonuses at the end of the year.
Which of the following situations violates the personnel system regulations of that unit?
A. Old Wu performed actively in the unit and had no tardiness or early leave throughout the year, but did not receive a year-end bonus
B. Xiao Li was late three times throughout the year due to traffic jams, and the unit decided not to give him the attendance reward
C. Old Zhang performed outstandingly, never being late or leaving early, and received a year-end bonus from the unit
D. Xiao Wang was found leaving early once, lost his attendance reward, but still received a year-end bonus
Click the blank area to see the answer
[Answer] D. Analysis: The premise is a necessary condition hypothetical proposition (its negation is “the antecedent is true and the consequent is false”),
and the antecedent is a conjunction proposition (one false makes it false), while the consequent is a compatible disjunction proposition (one true makes it true). Option D makes the antecedent false and the consequent true, thus violating the personnel system regulations. Therefore, the answer is D.
3
A survey on internet addiction in a certain area shows that 81% of the surveyed subjects are addicted to online games. At the same time, it was found that more than half of the internet addicts feel very frustrated in life, and feeling frustrated in life often leads to bad behaviors such as smoking and drinking.
From this, it can be seen that:
A. There may be no one among internet game addicts who feels frustrated in life
B. Internet game addicts will definitely smoke or drink
C. There must be some internet game addicts who feel very frustrated in life
D. There must be no smokers among internet game addicts
Click the blank area to see the answer
[Answer] C. Analysis: More than half of internet addicts feel very frustrated in life, and since internet game addicts account for 81% of the surveyed internet addicts, option A is incorrect and option C is correct. Options B and D cannot be concluded from the text.
4
Why are some people always single? Researchers have discovered a “single gene”! A research institution extracted hair samples from nearly 600 corporate white-collar workers and analyzed a gene called 5-HTA1, which has two different types. People carrying the “G” type gene are more likely to remain single than those carrying the “C” type gene.
Which of the following, if true, most supports the above argument?
A. Sometimes factors such as pressure from parents have a greater influence on being single
B. The influence of genes on emotional relationships is generally small in most cases
C. Research shows that genetic factors have a significant impact on the construction of social relationships
D. Researchers believe that the white-collar group does not have more time to build romantic relationships
Click the blank area to see the answer
[Answer] C. Analysis: The premise states that people carrying the “G” type gene are more likely to remain single than those carrying the “C” type gene. Options A, B, and D all indicate that being single is due to other reasons, not genetic issues, which weaken the premise; option C, if true, indicates that genes do indeed affect the construction of social relationships, including romantic behaviors, thus strengthening the premise. Therefore, the answer is C.
5
Professor: If both parents are type O blood, their children can only be type O blood, this is a genetic rule.
Student: That’s not true, my father is type B blood, and I am type O blood.
The student is most likely to understand the professor’s statement as:
A. Only people with type O blood can have type O blood children
B. Type O blood people cannot have type B blood children
C. Type B blood people will always have type O blood children
D. If both parents are type B blood, their children will also be type B blood
Click the blank area to see the answer
[Answer] A. Analysis: The student says, “That’s not true, my father is type B blood, and I am type O blood.”
The example given by the student indicates that non-type O blood individuals can also have type O blood children. The student’s example is to prove that the professor’s statement is not true. The opposite of the meaning that “non-type O blood individuals can also have type O blood children” is A.
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