[单项选择]One of the reasons why men invented certain sounds to express thoughts and actions was that they could ______.


A. agree with certain signs
B. write them down
C. make themselves understand each other
D. combine them

[单项选择]One of the reasons why men invented certain sounds to express thoughts and actions was that they could ______.


A. agree with certain signs
B. write them down
C. make themselves understand each other
D. combine them

[单项选择]______ men invented certain sounds to express thoughts and actions.
A. Because they wanted to agree on certain signs
B. As they needed to write them down
C. Since they wanted to communicate with each other
D. Now that they could combine them

[单项选择]

Passage Five
Although no one is certain why migration occurs, there are several theories. One theory is based upon the premise that prehistoric birds of the northen Hemisphere were forced south during the Ice Age, when glaciers covered large parts of Europe, Asia, and North America. As the glaciers melted, the birds came back to their homelands, spent the summer, and then went south again as the ice advanced in winter. In time, the migration became a habit, and now, although the glaciers have disappeared, the habit continues.
Another theory proposes that the ancestral home of all modern birds was the tropics. When the region became overpopulated, many species were crowded north. During the summer, there was plenty of food, but during the winter, scarcity forced them to return to the tropics.
A more recent theory, known as photoperiodism, suggests a relationship between increasing daylight and the stimulation of certain glands in the birds’ bod
A. birds should migrate in the middle of the winter
B. longer days cause changes in the bodies of birds
C. seasonal changes in the length of days do not affect migration
D. increasing daylight increases the distance of migration

[单项选择]

Passage One
How men first learned to invent words is unknown; in other words, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain sounds to ex press thoughts and feelings, actions and things, so that they could communicate with each other; and that later they agreed upon certain signs, called letters, which could be combined to represent those sounds and which could be written down. Those sounds, whether spoken, or written in letters, we call words.
There power of words, then, lies in their associations the things they bring up before our minds. Words become filled with meaning for us by experience; and the longer we live, the more certain words recall to us the glad and sad events of our past; and the more we read and learn, the more the number of words that mean something to us increases.
Great writers are those who not only have great thoughts but also express these thoughts in words which
A. They are used to express feelings only.
B. They can not be written down.
C. They are simply sounds.
D. They are mysterious.

[单项选择]Why do men and women share household tasks


A. Because women play an equal role as men.
B. Because women play a dominant role in the family.
C. Because women have less time to spend on housework.
D. Because men spend more time on housework.

[单项选择]The reason why these men committed suicide is that（）
A. they felt they dishonored the family name
B. they couldn't find gainful employment because of their age after losing their job
C. they were afraid of being old
D. Both A and B.

[单项选择]Why do men carry on the sex war against women


A. Because of their inferiority.
B. Because they shun real competition.
C. Because of their claim to supremacy.
D. Because they still look down upon women.

[单项选择]Why do men and women have different patterns of abilities


A. Because they have different overall levels of intelligence,
B. Because their genetic materials are different.
C. Because hormonal influences are different on their developing brains.
D. Because they differ in physical attributes.