新视野大学英语4网络自主学习测验试卷四及答案

83. The author implies that there is cause for concern if consumers with

limited incomes buy organic foods instead of conventionally grown foods because ________.

A. organic foods can be more expensive but are often no better than conventionally-grown foods

B. many organic foods are actually less nutritious than similar conventionally-grown foods

C. conventionally-grown foods are more readily available than organic foods

D. too many farmers will stop using conventional methods to grow food crops

84. According to the last paragraph, consumers who believe that organic

foods are better than conventionally-grown foods are often ________.

A. careless

B. mistaken

C. mistaking

D. wealthy

85. What is the author's attitude toward the claims made by advocates of

health foods?

A. Very enthusiastic.

B. Somewhat favorable.

C. Neutral.

D. Doubtful.