29.On an average, people in America who were born in 1900 ______.
A.had a life-span of 74 years
B.lived a shorter but better life than those born later
C.lived to 47 years of age
D.lived 27 years longer than those born in 1981

30.The intended readers of the passage are _______.
A.teenagers
B.the diseased
C.adults
D.aged people

                                  Passage Three
Questions 31 to 35 are based on the following passage.
   Most Americans would have a difficult time telling you, specifically, what the values are which Americans live by. They have never given the matter any thought.

   Over the years I have introduced thousands of international visitors to life in the United States. This has caused me to try to lock at Americans  through the eyes of foreign visitors, I am confident that the values listed in this booklet describe most (but not all )Americans, and that understanding these values can help you, the international visitor, understand Americans.

   It is my belief that if foreign visitors really understand how deeply these 13 values are ingrained in Americans, they will then be able to understand 95% of American actions —actions which might otherwise appear “strange,”“confusing,”or “unbelievable” when evaluated from the perspective of the foreigner's own society and its values.

   The different behaviors of a people or a culture make sense only when seen through the basic beliefs, assumptions and values of that particular group. When you encounter and action, or hear a statement in the United States which surprises you, try to see it as an expression of one or more of the values listed in this booklet.

31.Can an ordinary American tell you his/her value system?
A.Yes, because this is something an American lives by.
B.No, because everyone will have his/her own system.
C.No, because he/she has never thought about it.
D.Yes, because values are something often in their thought.

32.The author lists 13 values in his booklet to _____.
A.invite foreigners to visit America
B.look at Americans through the eyes of foreign visitors
C.describe the confusing actions of most Americans
D.help international visitors understand Americans

33.The word “ingrained” in Line 2, Paragraph 3 most probably means _____.
A.rooted in the minds
B.found in the grains
C.planted for food
D.prepared with grain

34.Visitors sometimes fine Americans behave in a strange, confusing or unbelievable way, probably because _____.
A.Americans are hard to understand
B.Americans have values which are entirely different from their own
C.they view Americans according to the values in their own society
D.it is difficult to understand any people when you first encounter them