One proposal for pre-

serving rain forests is to               

promote the adoption of

Line new agricultural technolo-

  (5)      gies, such as improved

plant varieties and use of

chemical herbicides, which

would increase productivity

and slow deforestation by

 (10)      reducing demand for new

cropland.  Studies have

shown that farmers in

developing countries who

have achieved certain levels

 (15)      of education, wealth, and

security of land tenure are

more likely to adopt such

technologies.  But these

studies have focused on

 (20)      villages with limited land

that are tied to a market

economy rather than on

the relatively isolated, self-

sufficient communities with

 (25)      ample land characteristic of

rain-forest regions.  A recent

study of the Tawahka people

of the Honduran rain forest

found that farmers with some

 (30)      formal education were more

likely to adopt improved plant

varieties but less likely to

use chemical herbicides

and that those who spoke

 (35)      Spanish (the language of

the market economy) were

more likely to adopt both

technologies.  Nonland

wealth was also associated

 (40)      with more adoption of both

technologies, but availability

of uncultivated land reduced

the incentive to employ the

productivity-enhancing tech-

 (45)      nologies.  Researchers

also measured land-tenure

security: in Tawahka

society, kinship ties are a

more important indicator of

 (50)      this than are legal property

rights, so researchers

measured it by a house-

hold’s duration of residence

in its village.  They found

 (55)      that longer residence cor-

related with more adoption

of improved plant varieties

but less adoption of

chemical herbicides.

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Q10:      

The primary purpose of the passage is to

1. evaluate the likelihood that a particular proposal, if implemented, would ultimately succeed in achieving its intended result
2. question the assumption that certain technological innovations are the most effective means of realizing a particular environmental objective
3. discuss the progress of efforts to encourage a particular traditional society to adopt certain modern agricultural methods
4. present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions
5. weigh the relative importance of three factors in determining whether a particular strategy will be successful

答案是d，我选a，请教大家~~

 I choose A too.

Anybody can help us?

hi guys, hope this can help. the not exact word used to describe is marked in red. the word exerted from the passage is in green which shows the answer area..

The primary purpose of the passage is to

A. evaluate the likelihood that a particular proposal, if implemented, would ultimately succeed in achieving its intended result

B. question the assumption that certain technological innovations are the most effective means of realizing a particular environmental objective

C. discuss the progress of efforts to encourage a particular traditional society to adopt certain modern agricultural methods

D. present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions

E. weigh the relative importance of three factors in determining whether a particular strategy will be successful