Q：The word it most probably refers to ________ .
        
        　　(A) the lack of stable communities.
        
        　　(B) The breakdown of informal imformation channels.
        
        　　(C) The increased mobility of families
        
        　　(D) The growing number of people moving from place to place.(分析：选B项，本题属句际关系推理题型，要善于分析句子结构，As引导的前半部分是状语从句，主句是the informal flow of information is cut off，with引导的短语表伴随。详析见《分册》P110页例1答案。)
        
        　　例2. The manufacturer who increases the unit price of his product by his package size to lower the quantity delivered can, without undue hardship, put his product into boxes, bags, and tins that will contain even 4-iybcem, 8-ounce, one-pound, two-pound quantities of breakfast foods, cake, mixes, etc.
        
        　　Q：The wordundue means ______ 。
        
        　　（A）improper (B)unexpected (C)adequate (D)excessive(分析：选D项，这属词汇题型，但需要分析句子结构和上下文逻辑。该句看似复杂，但结构容易分析，主语the manufacturer,谓语can put,宾语his product, who引导定语从句，that此引导定语从句，without undue hardship介词组作插入部分。句子结构分析好，全句意思就易弄懂，制造商改变包装大小或样式不需要过多的艰辛努力，故选D。)
        
        　　例3…All this will lead to a population in the twenty first century that is smaller than was　　feared a few years ago. For those anxious to see world population brang by under ventral the news is encouraging.
        
        　　Q:The population in the 21st century,arousing to the writer,_____.
        
        　　(A) will be smaller than a few gears ago.
        
        　　(B) will not be as small as people expect.
        
        　　(C) will prove to be a threat to the world.
        
        　　(D) will not constitute as serious a problem as expected.
        
        　　（分析：选D项。属逻辑推理型题。考生关键要理解that引导的定语从句意思，然后联系下句，便知D项是正确选项。）
        
        　　6、因果句常考
        
        　　命题者常以文中因果句命制一些考查文中两个事件内在的因果关系的试题，或出些概括文意、段意试题。一般以推理性题型和主旨大意题型出现，兼顾少量其它题型。表示因果关系的词有：because, since, for，as,　　therefore, consequently, result in, originate from等。
        
        

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