[单项选择]

Questions 18—20 are based on the following talk.

What can be concluded from the talk
A. Consumers should buy organic foods if they can afford.
B. Natural foods should be advocated widely because they are both safe and nutritious.
C. In many cases consumers are misled in believing only organic foods are the best.
D. Conventionally grown foods are not nutritious as the organic foods.

[填空题]Questions 51 to 55 are based on the following passage. It is well known that some cultures prefer sons to daughters. In contrast, surveys have revealed that some people would rather have a daughter than a son. Apparently, each of these preference has its explanation in the local culture . Around the world , people who prefer sons have similar reasons .In many countries , sons are valued because they can work and contribute to the family income . Also , sons will be able to support their parents when the parents are old . In some cultures , sons are important because they enable the family name to continue for another generation . This is because the wife in these cultures takes her husband’s family name , and more or less “belongs ”to the husband’s family . In addition , having a daughter can sometimes cause difficult for a family . In India , for example , h

[单项选择]Questions 11 through 13 are based on the following passage.
A. A book publisher.
B. A company manager.
C. A magazine editor.
D. A school principal.

[单项选择]Questions 14 through 16 are based on the following passage.
A. Economic questions.
B. Routine questions.
C. Academic questions.
D. Challenging questions.

[单项选择] Questions 18-20 based on the following dialogue between friends about their family. You now have 20 seconds to read Questions 18-20.When is this lecture given
A. Just before the final exam.
B. During the first week of classes.
C. During the second week of classes.
D. After the second laboratory quiz.