单选题Listentopartofalectureinacivilengineeringclass.Nowgetreadytoanswerthequestions.Youmayuseyournotestohelpyouanswer.Listenagaintopartofthelecture.Thenanswerthequestion.

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单选题What connection does the professor make between music and the era it is from?

单选题SPORTS COMMENTARY 1 One of the most interesting and distinctive of all uses of language is commentary. An oral reporting of ongoing activity, commentary is used in such public arenas as political ceremonies, parades, funerals, fashion shows, and cooking demonstrations. The most frequently occurring type of commentary may be that connected with sports and games. In sports there are two kinds of commentary, and both are often used for the same sporting event. "Play-by-play" commentary narrates the sports event, while "color-adding" or "color" commentary provides the audience with pre-event background, during-event interpretation, and post-event evaluation. Color commentary is usually conversational in style and can be a dialogue with two or more commentators. 2 Play-by-play commentary is of interest to linguists because it is unlike other kinds of narrative, which are typically reported in past tense. Play-by-play commentary is reported in present tense. Some examples are "he takes the lead by four" and "she's in position." One linguist characterizes radio play-by-play commentary as "a monologue directed at an unknown, unseen mass audience who voluntarily choose to listen.., and provide no feedback to the speaker." It is these characteristics that make this kind of commentary unlike any other type of speech situation. 3 The chief feature of play-by-play commentary is a highly formulaic style of presentation. There is distinctive grammar not only in the use of the present tense but also in the omission of certain elements of sentence structure. For example, "Smith in close" eliminates the verb, as some newspaper headlines do. Another example is inverted word order, as in "over at third is Johnson." Play-by-play commentary is very fluent, keeping up with the pace of the action. The rate is steady and there is little silence. The structure of the commentary is cyclical, reflecting the way most games consist of recurring sequences of short activities--as in tennis and baseball--or a limited number of activity options--as in the various kinds of football. In racing, the structure is even simpler, with the commentator informing the listener of the varying order of the competitors in a "state of play" summary, which is crucial for listeners or viewers who have just tuned in.

单选题With little (nor) no mass and (no) electric charge, neutrinos can penetrate a solid object such as the Earth (as) if it (were) not there.

单选题Cells,first identified by the early microscopists, began to be considered......in the nineteenth century. (a)them as microcosm of living organisms (b)the microcosm of living organisms (c)the microcosm of living organisms to be (d)as which, the microcosm of living organisms

单选题The United States census (for) 1970 (showed that) the French-speaking residents of Louisiana (were. one of the country's most compact regional linguistic (minority). A. for B. showed that C. were D. minority

单选题A gene is a biological unit of information who directs the activity of a cell or organism during A B C its lifetime. D

单选题When ______ from milk, the remainder is called skim milk.

单选题The word "subsequent" in line 8 is closest in meaning to

单选题The word "constant" in line 16 is closest in meaning to

单选题The word "ornate" in line 7 is closest in meaning to

单选题The world’s water balance is regulated by the constant circulation of water in Liquid and vapor tom among the oceans, the atmospheric, and the land.

单选题George Washington Carver __________ international fame for revolutionizing agriculture research in the southern United States during the early twentieth century.

单选题Listentopartofalectureinalawclass.Nowgetreadytoanswerthequestions.Youmayuseyournotestohelpyouanswer.Listenagaintopartofthelecture.Thenanswerthequestion.

单选题According to the passage, the main disadvantage of person-on-the-street interviews is that they

单选题Proper city planning (provides for) the (distribution) of public utilities, public buildings, parks, and (recreation centers), and for adequate and (the inexpensive. housing. A. provides for B. distribution C. recreation centers D. the inexpensive

单选题What is the purpose of the material in paragraph three (lines 16-19)

单选题Almost (every) the here itary (material) of (an individual) organism resides (in the) chromosomes.