专四阅读难句练习

1. His thesis works relatively well when applied to discrimination against Blacks in the United States， but his definition of racial prejudice as racially-based negative prejudgments against a group generally accepted as a race in any given region of ethnic competition， can be interpreted as also including hostility toward such ethnic groups as the Chinese in California and the Jews in medieval Europe.

2. Gutman argues convincingly that the stability of the Black family encouraged the transmission of and so was crucial in sustaining the Black heritage of folklore， music， and religious expression from one generation to another， a heritage that slaves were continually fashioning out of their African and American experiences.

3. Even the folk knowledge in social systems on which ordinary life is based in earning， spending， organizing， marrying， taking part in political activities， fighting and so on ， is not very dissimilar from the more sophisticated images of the social system derived from the social sciences， even though it is built upon the very imperfect samples of personal experience.

4. There are several steps that can be taken， of which the chief one is to demand of all the organizations that exist with the declared objectives of safeguarding the interests of animals that they should declare clearly where they stand on violence towards people.

5. It was possible to demonstrate by other methods refined structural differences among neuron types， however， proof was lacking that the quality of the impulse or its conduction was influenced by these differences， which seemed instead to influence the developmental patterning of the neural circuits.