【正文】 an be easily identified (B) the songs attract only the young people in a munity (C) the songs are generally performed by professional singers (D) the posers write the music in rural munitiesQuestions 1020 Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies39。s original poser would be forgotten, and the song would bee mon property. This constant reshaping and recreation is the essence of folk music. Consequently, modem popular songs and other published music, even though widely sung by people who are not professional musicians, are not considered folk music. The music and words have been set by a printed or recorded source, limiting scope for (20) further artistic creation. These songs39。 variation (changes in words and melodies either through artistic interpretation or failure of memory)。s.D and similar onecelled organisms reproduce by cell division, each of the daughter Acell then beginning a new life as a distinct organism.B C D species of birds that breed in temperate latitudes often show particular patternsA B C of migration while the year.D, the most oldest city in Canada, lies on the north bank of the St. LawrenceA B C D River. of the need to maintain the correct balance of salts and minerals in the water, A Bkeeping saltwater fish in aquariums requires more work that keeping freshwater fish.C D25. Addressing themes that were unique American, the poet Walt Whitman celebrated A B Cthe lives of ordinary people.D museums have been founded by private benefactors, and a few have receivedA B endowments that help to support theirs routine operations.C D Bessemer process for converting iron to steel was invention of enormous importance A Bbecause it led to many significant changes in industrial processes.C D28. Painters have been portraying the sea for centuries, and in the United States a A Brich tradition of marine painting been developed during the nineteenth century.C D city of Memphis, Tennessee, was a important Confederate military center during A Bthe American Civil War and served as the temporary state capital in 1862.C D30. Although all sedimentary rocks contain iron, but the deposits that are richest in iron A Bconsist predominantly of minerals such as iron oxides, carbonates, silicates, and sulfides.C D the United States, the attorney general is a cabinet member in charge with theA B C administration of the Department of Justice.D Atlantic cable, which began to operating in 1866,linked the United States to London Aand to another cable stretching eastward to India and beyond.B C D33. Many folk songs were originated to acpany manual work or to mark a A B Cspecific ceremonies.D shell of the abalone, a marine snail, is especially suited by its hardness and A Bvarious of colors for the manufacture of jewelry.C D Farrar, who debuted as an opera singer in 1901,later appeared both on A B Cstage and in several silent film.D migration of African Americans from the rural South to the industrial North inA the early 190039。s mansion in the United States __ Jackson, Mississippi.(A) the location in(B) is the location(C) is located in(D) located in television camera produces an image by convening __ receives into a series of bright and dark dots.(A) and it (B) it(C) what it(D) that it socalled nonfiction novels, a documentary style is bined with fictional techniques __actual events and people.(A)that they describe(B)to describe(C)and in describing(D)are describing often receive considerable training in the technical aspects of their jobs __ very little in the people management aspects.(A)so(B)just as(C)yet(D)and that of fertile soil called deltas, usually __ are formed by mud deposited at the mouth of a river.(A)triangular in shape(B)their shape is triangular(C)they have a triangular shape(D)triangular shape a respected educator, Alexander Graham Bell __ the inventor of the telephone.(A)as is best known(B)best known as is(C)is best known as(D)best is known as14. Not until the First World War __ to improve the road system in the United States.(A)a determined effort was made(B)made a determined effort (C)when a determined effort was made(D)was a determined effort made15. Often invisible, always in motion, gas is __ of matter.(A)the state is most energetic(B)stating the most energetic(C)the most energetic state(D)the state that most energetic16. Some fish have whiskers, which are sensory organs used for touching and tasting, A Band which are helpful when are they searching for food in sand and mud.C D is produced mercially by to heat a mixture of limestone and clay A Bin a large, slowly rotating cylindrical furnace.C D addition to appropriating the subject matter of mass culture, the pop art movement A Bof the 195039。s passed again. 50. (A) Just after a new President is elected. (B) Just before Congress takes any short break. (C) When Congress has just ended an entire session. (D) Anytime during a session of Congress. Section Two: Struct