Why do people say women produce more than half of the food in Africa?
A.Because 60 percent of women are illiterate.
B.Because 80 percent of all agricultural work is done by women.
C.Most women are not intelligent.
D.All are correct.

A typical African woman spends collecting firewood every day.
A.3 hour
B.2 hours
C.1 hour
D.4 hours

Which of these statements is NOT TRUE?
A.Women’s roles in the family and society are changing nowadays.
B.It is difficult for women to change their lives because of their illiteracy.
C.In the past only men in poor countries got benefit from many international programs.
D.Because they are illiterate, women are not intelligent.

By whom (what) was the Decade for Women organized?
A.By the United Nations Organization.
B.By developing countries.
C.By the World Health Organization.
D.By many African countries.

The passage would most likely be followed by details about .
A.changes in life between men and women in the family and in the society
B.negative effects of the UNO law
C.positive effects of the roles of women
D.women and men's roles in their family

Which of the following is the main subject of the passage?
A.The importance of models in scientific theories.
B.The sorts of facts that scientists find most interesting.
C.The ways that scientists perform different types of experiments.
D.The place of theory and hypothesis in scientific investigation.

According to the second paragraph, a useful theory is one that helps scientists to .
A.observe events
B.publicize new findings
C.make predictions
D.find errors in past experiments

The word "supported" in paragraph 2 is closest in meaning to .
A.upheld
B.finished
C.adjusted
D.investigated

In the fourth paragraph, the author implies that imagination is most important to scientists when they .
A.formulate possible solutions to a problem
B.evaluate previous work on a problem
C.close an investigation
D.gather known facts

The word "obscurity" could best be replaced by .
A.qualification
B.disappearance
C.influence
D.tolerance