1、找出A, however B,将however看作therefore,解释时思考整体
Suncorp, a new corporation with limited funds, has been clearing large sections of the tropical Amazon forest for cattle ranching. This practice continues even though greater profits can be made from rubber tapping, which does not destroy the forest, than from cattle ranching, which does destroy the forest.
Which of the following, if true, most helps to explain why Suncorp has been pursuing the less profitable of the two economic activities mentioned above?
(A) The soil of the Amazon forest is very rich in nutrients that are important in the development of grazing lands.
(B) Cattle-ranching operations that are located in tropical climates are more profitable than cattle-ranching operations that are located in cold-weather climates.
(C) In certain districts, profits made from cattle ranching are more heavily taxed than profits made from any other industry.
(D) Some of the cattle that are raised on land cleared in the Amazon are killed by wildcats.
(E) The amount of money required to begin a rubber-tapping operation is twice as high as the amount needed to begin a cattle ranch.
Parland's alligator population has been declining in recent years, primarily because of hunting. Alligators prey heavily on a species of freshwater fish that is highly valued as food by Parlanders, who had hoped that the decline in the alligator population would lead to an increase in the numbers of these fish available for human consumption. Yet the population of this fish species has also declined, even though the annual number caught for human consumption has not increased.
Which of the following, if true, most helps to explain the decline in the population of the fish species?
(A) The decline in the alligator population has meant that fishers can work in some parts of lakes and rivers that were formerly too dangerous.
(B) Over the last few years, Parland's commercial fishing enterprises have increased the number of fishing boats they use.
(C) The main predator of these fish is another species of fish on which alligators also prey.
(D) Many Parlanders who hunt alligators do so because of the high market price of alligator skins, not because of the threat alligators pose to the fish population.
(E) In several neighboring countries through which Parland's rivers also flow, alligators are at risk of extinction as a result of extensive hunting.
E选项说邻国鳄鱼濒临灭绝，None of our business…