In spite of such omissions, what Rosenblatt does include in his discussion makes for an astute and worthwhile study. Black Fiction surveys a wide variety of novels, bringing to our attention in the process some fascinating and little-known works like James Weldon Johnson’s Autobiography of an Ex-Colored Man. Its argument is tightly constructed, and its forthright, lucid style exemplifies levelheaded and penetrating criticism。

　　21. The author of the text is primarily concerned with __________。

　　[A] evaluating the soundness of a work of criticism。

　　[B] comparing various critical approaches to a subject。

　　[C] discussing the limitations of a particular kind of criticism。

　　[D] summarizing the major points made in a work of criticism。

　　22. The author of the text believes that Black Fiction would have been improved had Rosenblatt __________。

　　[A] evaluated more carefully the ideological and historical aspects of Black fiction。

　　[B] attempted to be more objective in his approach to novels and stories by Black authors。

　　[C] explored in greater detail the recurrent thematic concerns of Black fiction throughout its history。

　　[D] assessed the relative literary merit of the novels he analyzes thematically。

　　23. The author’s discussion of Black Fiction can be best described as __________。

　　[A] pedantic and contentious。

　　[B] critical but admiring。

　　[C] ironic and deprecating。

　　[D] argumentative but unfocused。

　　24. The author of the text employs all of the following in the discussion of Rosenblatt’s book EXCEPT： __________。

　　[A] rhetorical questions。

　　[B] specific examples。

　　[C] comparison and contrast。

　　[D] definition of terms。

　　25. The author of the text refers to James Weldon Johnson’s Autobiography of an Ex-Colored Man most probably in order to __________。

　　[A] point out affinities between Rosenblatt’s method of thematic analysis and earlier criticism。

　　[B] clarify the point about expressionistic style made earlier in the passage。

　　[C] qualify the assessment of Rosenblatt’s book made in the first paragraph of the passage。

　　[D] give a specific example of one of the accomplishments of Rosenblatt’s work。

　　Text 2

　　Although recent years have seen substantial reductions in noxious pollutants from individual motor vehicles, the number of such vehicles has been steadily increasing. Consequently, more than 100 cities in the United States still have levels of carbon monoxide, particulate matter, and ozone (generated by photochemical reactions with hydrocarbons from vehicle exhaust) that exceed legally established limits. There is a growing realization that the only effective way to achieve further reductions in vehicle emissions — short of a massive shift away from the private automobile — is to replace conventional diesel fuel and gasoline with cleaner-burning fuels such as compressed natural gas, liquefied petroleum gas, ethanol, or methanol。