【每日逻辑练习第二季】【1-2】

乖宝宝猪

1. Beverage company representative: The plastic rings
that hold six-packs of beverage cans together
pose a threat to wild animals, which often
become entangled in the discarded rings and
suffocate as a result. Following our lead, all
beverage companies will soon use only those
rings consisting of a new plastic that
disintegrates after only three days’ exposure to
sunlight. Once we all complete the switchover
from the old to the new plastic rings, therefore,
the threat of suffocation that plastic rings pose
to wild animals will be eliminated.
Which one of the following, if true, most seriously
weakens the representative’s argument?  

B: old rings--threat to wild animals---suffocate
P: old------new
C: suffocation will be eliminated-------------------weaken

(A) The switchover to the new plastic rings will
take at least two more years to complete.
------------------------- two more years to complete-----------irrelevant

(B) After the beverage companies have switched
over to the new plastic rings, a substantial
number of the old plastic rings will persist
in most aquatic and woodland environments.
------------------------------------------------------correct
.
(C) The new plastic rings are slightly less
expensive than the old rings.
----------------------------less expensive----------------irrelevant.

(D) The new plastic rings rarely disintegrate
during shipping of beverage six-packs
because most trucks that transport canned
beverages protect their cargo from sunlight.
--------------------------------------------irrelevant

(E) The new plastic rings disintegrate into
substances that are harmful to aquatic
animals when ingested in substantial
quantities by them.
---------------------------------harmful to aquatic animals---------------irrelevant？？


2.  Tiger sharks are common in the waters surrounding Tenare Island.  Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare's beaches.  This has hurt Tenare's tourism industry, which is second only to its fishing industry in annual revenues.  In order to help the economy, therefore, the mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches.

Which of the following, if true, most strongly calls into question the likelihood that implementation of the mayor's proposal will have the desired consequence?

A) Even if not all thetiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.
-------------------------------------support
(B) Business owners who depend on tourism are willing topay most of the cost of implementing the program.
------------------------------------irrelevant
(C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions.
---------------------------------irrelevant
(D) The small sharks on which tiger sharks prey feed onfish that are commercially important to the island's fisheries.
----correct
(E) Not all tourists who come to Tenare Island enjoyswimming or surfing.
------------------------------irrelevant


3. The country of Ertland has never imported apples in any significant quantity because consumers there generally prefer the unique texture of Ertland-grown apples.  Nevertheless, apple growers from Kosolia, a neighboring country, plan to sell their apples in Ertland by selling Kosolia-grown apples at half the price of local apples and promoting them as a nourishing, low-cost alternative.

Which of the following, if true, casts most doubt on the viability of the plan by Kosolia's apple growers to sell their apples in Ertland?

(A) Most of the varieties of apples grown in Ertland were originally derived from common Kosolian varieties.

----------------------------------------------------------support.
(B) Consumers in Ertland tend to spend about the same proportion of their income on fresh fruits and vegetables as do consumers in Kosolia.

----------------------------------------------------------irrelevant
(C) At times in the past, Ertland has exported significant quantities of apples to Kosolia.

-----------------------------------------------------------irrelevant
(D) Some varieties of apples grown in Kosolia can be harvested throughout most of the year, whereas the varieties grown in Ertland can be harvested only during two months of the year.

----------------------------------------------------------support
(E)Profiles of Ertland-grown apples are high enough in Ertland that growers, wholesalers, and retailers there could easily afford to reduce the price at which these apples are sold.

----------------------------------------------------------correct.


4. As part of major renovations to Flowertown's Main Street train station, consultants to the train company proposed moving the station's entrance from its current valuable Main Street location to a low-rent adjoining side street and then leasing the high-rent entrance space to retail businesses.  In that way, the train company could easily pay for those and all other proposed renovations without negative impact on its tight budget.

Which of the following, if true, would most strongly support the consultants' proposal?

(A) More train commuters are employed in businesses located on Main Street
than in businesses located on the adjoining side street.
----------------------------------------------------------------weaken
(B) A reliable survey of Flowertown's commuters showed that virtually none of them would use the train any less frequently if the station's entrance were moved.

-----------------------------------------------------------------correct
(C) The high-rent block of Flowertown's Main Street includes several buildings whose owners currently seek to replace long-standing tenants lost in recent months.

-----------------------------------------------------------------------------------irrelevant
(D) If the station's entrance were moved, the train company would need to begin costly renovations to its Main Street entrance space.
----------------------------------------------------------------weaken
(E) Ridership on Flowertown trains declined only slightly from 1970 to 1985 while other train companies lost large numbers of commuters.

------------------------------------------------------------------irrelevant.


5. Automobile Dealer's Advertisement:


The Highway Traffic Safety Institute reports that the PZ 1000 has the fewest injuries per accident of any car in its class.  This shows that the PZ 1000 is one of the safest cars available today.

Which of the following, if true, most seriously weakens the argument in the advertisement?


(A)The Highway Traffic Safety Institute report listed many cars in other classes that had more injuries per accident than did the PZ 1000.

-----------------------------------------------------------support
(B) In recent years many more PZ 1000s have been sold than have any other kind of car in its class.

-----------------------------------------------------------irrelevant
(C) Cars in the class to which the PZ 1000 belongs are more likely to be involved in accidents than are other types of cars.

-------------------------------------------------------------correct
(D) The difference between the number of injuries per accident for the PZ 1000 and that for other cars in its class is quite pronounced.

-----------------------------------------------------------irrelevant
(E) The Highway Traffic Safety Institute issues reports only once a year.

-----------------------------------------------------------irrelevant

huang2610

Premise: 1) old style plastic ring is treathen the wild animal
             2) our company's new design of the plastic ring will not treathen the wild animals
             

Conslusinon: after all the companies follow our new design. the plastic ring will no more treathen the wild animals.

huang2610

2. Premise: tiger sharks normally feed on small shark. but they also will eat human whom swimming and suffing at that area. this this harm the tourise business to the T island.
Conculsion: The Mayor came out a plan to kill tiher shark within 1 km of the island

huang2610

3. Premise: Country A hardly import apples from other countries cos the residents prefer their local food.
   Conclusion: The neighbor counry planning to export their apples to country A at 1/2 price

方向：价格不是这个国家居民在意的因素

huang2610

4. Premise: partly of the  the authority's plan for the train station renovation is to move the main entrance from high rent side to the low rent side

Conclusion: this plan will solve the tight burget problem.

加强方向：换了entrance之后原来的high Rent Side不会收入不会下降

huang2610

Premise: The data shown the PZ1000 having the lowest accident rate compare with the same class cars

Conclusion: PZ1000 is the safest car in the market

削弱：这个class的车在全部classes 当中事故率最高

zongtianmei

谢谢

liyan25257758

我认为第一题应该这样理解，结论是：这个threat （是旧plastic对环境起着破坏的作用）可以消除，选一个weaken这个结论b选项是旧plastic依然会存在于水中等所以，依然会对环境起着破坏，这个threat没有消除，而且还会存在，所以b是weaken这个结论
e选项是说的新plastic也会对环境产生影响，但是新plastic并不是结论中说的threat，使我们未知的东西，所以并没有起到weaken结论的作用。

liyan25257758

1.
Background: the plastic rings pose a threat to wild animals because the animals often become entangled in the discarded rings
Premise: the company will produce a new rings that disintegrates only three days
Conclusion: the threat will eliminated
I think that in three days the animals will still discard the rings
Weaken:
(A) The switchover to the new plastic rings will
take at least two more years to complete.
(B) After the beverage companies have switched
over to the new plastic rings, a substantial
number of the old plastic rings will persist
in most aquatic and woodland environments.    Irreverent
(C) The new plastic rings are slightly less
expensive than the old rings.                Irreverent
(D) The new plastic rings rarely disintegrate
during shipping of beverage six-packs
because most trucks that transport canned
beverages protect their cargo from sunlight.
(E) The new plastic rings disintegrate into
substances that are harmful to aquatic
animals when ingested in substantial
quantities by them. Right
2

Premise: the tiger sharks attacks tourists which will harm the tourism industry. The mayor wants to kill the sharks
Conclusion: the tourism will increase
Imagine: the period which sharks attack the people are not the tourism season
A) Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.
(B) Business owners who depend on tourism are willing to pay most of the cost of implementing the program. Irrelevant
(C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions.
(D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island's fisheries.
(E) Not all tourists who come to Tenare Island enjoy swimming or surfing.
3
Which of the following, if true, casts most doubt on the viability of the plan by Kosolia's apple growers to sell their apples in Ertland?
-- PREP07 CR1 NO.6
Premise: K wants to sell their apples at a low price in order to compete with the local seller of E
Conclusion: K will gain success in competition

(A) Most of the varieties of apples grown in Ertland were originally derived from common Kosolian varieties. Support
(B) Consumers in Ertland tend to spend about the same proportion of their income on fresh fruits and vegetables as do consumers in Kosolia. Irrelevant
(C) At times in the past, Ertland has exported significant quantities of apples to Kosolia. Irrelevant
(D) Some varieties of apples grown in Kosolia can be harvested throughout most of the year, whereas the varieties grown in Ertland can be harvested only during two months of the year.  
(E) Profiles of Ertland-grown apples are high enough in Ertland that growers, wholesalers, and retailers there could easily afford to reduce the price at which these apples are sold.
4.
Support
(A) More train commuters are employed in businesses located on Main Street than in businesses located on the adjoining side street. Weaken
(B) A reliable survey of Flowertown's commuters showed that virtually none of them would use the train any less frequently if the station's entrance were moved.
(C) The high-rent block of Flowertown's Main Street includes several buildings whose owners currently seek to replace long-standing tenants lost in recent months. Weaken
(D) If the station's entrance were moved, the train company would need to begin costly renovations to its Main Street entrance space.  Weaken
(E) Ridership on Flowertown trains declined only slightly from 1970 to 1985 while other train companies lost large numbers of commuters. irrelevant
5
Premise: the pz1000 has the fewest injuries per accident of any car in its class
Conclusion:pz1000 is one of the safest cars available today
Gap: safest and fewest injuries per accident in its class
weaken
(A) The Highway Traffic Safety Institute report listed many cars in other classes that had more injuries per accident than did the PZ 1000. Support
(B) In recent years many more PZ 1000s have been sold than have any other kind of car in its class. Irrelevant
(C) Cars in the class to which the PZ 1000 belongs are more likely to be involved in accidents than are other types of cars. weaken
(D) The difference between the number of injuries per accident for the PZ 1000 and that for other cars in its class is quite pronounced. irrelevant
(E) The Highway Traffic Safety Institute issues reports only once a year. Irrelevant

Cassiezhao

版主能把选项页贴出来吗