[单项选择]Man, so the truism goes, lives increasingly in a man-made environment. This places a special burden on human immaturity, for it is plain that adapting to such variable conditions must depend very heavily on opportunities for learning, or whatever the processes are that are operative during immaturity. It must also mean that during immaturity man must master knowledge and skills that are either stored in the gene pool or learned by direct encounter, but which are contained in the culture pool--knowledge about values and history, skills as varied as an obligatory natural language or an optional mathematical one, as mute as levers or as articulate as myth telling.
Yet, it would be a mistake to leap to the conclusion that because human immaturity makes possible high flexibility, therefore anything is possible for the species. Human traits were selected for their survival value over a four--to five-million-year period with a great acceleration of the selection process during the last h
A. it occurred very late during the evolution of the species
B. evolutionary forces seemed to work at cross purposes to each other
C. technological innovations have made the process of birth easier
D. an increase in brain size is not an ordinary evolutionary event

[单项选择]Man, so the truism goes, lives increasingly in a man-made environment. This places a special burden on human immaturity, for it is plain that adapting to such variable conditions must depend very heavily on opportunities for learning, or whatever the processes are that are operative during immaturity. It must also mean that during immaturity man must master knowledge and skills that are either stored in the gene pool or learned by direct encounter, but which are contained in the culture pool--knowledge about values and history, skills as varied as an obligatory natural language or an optional mathematical one, as mute as levers or as articulate as myth telling.
Yet, it would be a mistake to leap to the conclusion that because human immaturity makes possible high flexibility, therefore anything is possible for the species. Human traits were selected for their survival value over a four--to five-million-year period with a great acceleration of the selection process during the last h
A. were useful to earlier human beings but have since lost their utility
B. appeared in response to the need to learn a natural language and the use of tools
C. humans currently exhibit but that developed in response to conditions of an earlier age
D. are disadvantageous to creatures whose way of life is primarily technical and social

[单项选择]

Why is the man so annoyed
A. Because he didn’t like listening to radio.
B. Because his sister made him study very hard.
C. Because the noise disturbed him so muc

[单项选择]
Why is the man so happy

[单项选择]Why was the man so late（）
A. Something is wrong with the bus.
B. He took somebody to hospital.
C. Something prevented him taking the bus.
D. He came on foot instead of taking the bus.

[单项选择]
Man, so the truism goes, lives increasingly in a man-made environment. This places a special burden on human immaturity, for it is plain that adapting to such variable conditions must depend very heavily on opportunities for learning, or whatever the processes are that are operative (luring immaturity. It must also mean that during immaturity man must master knowledge and skills that are either stored in the gene pool or learned by direct encounter, but which are contained in the culture pool-- knowledge about values and history, skills as varied as an obligatory natural language or an optional mathematical one, as mute as levers or as articulate as myth telling.
Yet, it would be a mistake to leap to the conclusion that because human immaturity makes possible high flexibility, therefore anything is possible for the species. Human traits were selected for their survival value over a four--to five-million-year
A. human beings may adapt to new conditions by technological invention rather than by changing their behavior
B. sexual promiscuity is no longer an aid to the survival of the human species
C. technological innovation is a more important adaptive mechanism than either heredity or direct encounter
D. conditions during the upper Pliocene and Pleistocene eras no longer affect the course of human evolution

[单项选择]Why was the woman able to give the man so much information about the job
A. Make up homework problems.
B. Do research in the library.
C. Grade homework sets.