【正文】 　have considerably problemsolving abilities.　　D　　40. Many of species of milkweed are among the most dangerous of poisonous plants, while others　　A B C　　have little, if any, toxicity.　　D　　Questions 110　　In the early 180039。 and at the same time to preserve, enhance, and promote their own cultural heritage.　　Artists and intellectuals from many parts of the United States and the Caribbean had Been attracted to Harlem by the pulse and beat of its unique and dynamic culture. From　　25) this unity created by the convergence of artists from various social and geographical backgrounds came a new spirit, which, particularly in densely populated Harlem, was to result in greater group awareness and selfdetermination. African American graphic artists took their place beside the poets and writers of the Harlem Renaissance and carried on efforts to increase and promote the visual arts.　　 does the passage mainly discuss?　　(A) African American paintings in the 192039。s, marked the twentieth century39。s temperature.　　A B C D　　27. Because of various giftgiving holidays, most stores clothing in the United Sates do almost as much　　A B　　business in November and December as they do in the other ten months bined.　　C D　　 United States National Labor Relations Board is authorized to investigation allegations of unfair　　A B　　labor practices on the part of either employers or employees.　　C D　　 Great Potato Famine in Ireland in the 184039。t know a lot about it.　　(D) She39。t planned to attend the seminar.　　(B) Mary has been ill for several weeks.　　(C) Mary forgot about the seminar.　　(D) Mary wasn39。s surprised Tom was so serious last night.　　(C) Tom doesn39。s grade can39。t see the paintings.　　(C) He doesn39。s schedule as soon as possible.　　9. (A) He already knew about the problem.　　(B) Someone has started fixing the washing machine.　　(C) No one plained about the washing machine today.　　(D) There39。t expect to have a quiz today.　　(C) Dr. Turner often gives quizzes.　　(D) The man should have prepared for the class.　　5. (A) There are different kinds of folders.　　(B) This decision requires careful thought.　　(C) It doesn39。t very good.　　(D) He has already seen the play.　　2. (A) Share the place he39。s looking for a place to store the piano.　　(C) No one has bought the piano.　　(D) He hasn39。ll be easy for him to give the woman a ride to the station.　　(C) He39。s information isn39。t seen Joan recently.　　(B) The man plans to call Joan soon.　　(C) Joan doesn39。t sell the books until he has read them.　　(C) The books probably aren39。t sure if Judy can solve the problem.　　(D) The man will be able to solve the problem himself.　　31. (A) Places the man has visited.　　(B) A paper the woman is writing for a class.　　(C) School activities they enjoy.　　(D) The woman39。s.　　44. (A) They didn39。s, over 80 percent of the United States labor force was engaged in agriculture. Sophisticated technology and machinery were virtually nonexistent. People who lived in the cities and were not directly involved in trade often participated in small cottage industries making handcrafted goods. Others cured meats, silversmiths, candle　　5) or otherwise produced needed goods and modities. Blacksmiths, silversmiths, candle makers, and other artisans worked in their homes or barns, relying on help of family Perhaps no single phenomenon brought more widespread and lasting change to the United States society than the rise of industrialization. Industrial growth hinged on several　　10） economic factors. First, industry requires an abundance of natural resources, especially coal, iron ore, water, petroleum, and timberall readily available on the North American continent. Second, factories demand a large labor supply. Between the 187039。s　　(B) An arts movement of the 192039。s Feather inevitably wears out. All adult birds molt their feathers at least once a year, and upon close observation, one can recognize the frayed, ragged appearance of feathers that　　5) are nearing the end of their useful life. Two distinct processes are involved in molting. The first step is when the old, worn feather is dropped, or shed. The second is when a new feather grows in its place. When each feather has been shed and replaced, then the molt can be said to be plete. This, however, is an abstraction that often does not happen: inplete, overlapping, and arrested molts are quite mon.　　10) Molt requires that a bird find and process enough protein to rebuild approximately onethird of its body weight. It is not surprising that a bird in heavy molt often seems listless and unwell. But far from being random, molt is controlled by strong evolutionary forces that have established an optimal time and duration. Generally, molt occurs at the time of least stress on the bird. Many songbirds, for instance, molt in late summer, when　　15) the hard work of breeding is done but the weather is still warm and food still plentiful. This is why the woods in late summer often seem so quiet, when pared with the Exuberant choruses of spring.　　Molt of the flight feathers is the most highly organized part of the process. Some species, for example, begin by dropping the outermost primary feathers on each side (to retain　　20) balance in the air) and wait until the replacement feathers are about onethird grown before shedding the next outermost, and so on. Others always start with the innermost primary feathers and work outward. Yet other species begin in the middle and work outward on both weeks while the replacement feathers grow.　　 passage mainly discusses how　　(A) birds prepare for breeding　　(B) bird feathers differ from species　　(C) birds shed and replace their feathers　　(D) birds are affected by seasonal changes　　 word Notwithstanding in line 2 is closest　　in meaning to　　(A) despite　　(B) because of　　(C) instead of　　(D) regarding　　 word intricate in line 2 is closest in meaning to　　(A)