1. The line of descent of apes and humans is believed by most paleontologists [that it split] into several branches some time between 20 million and 5 millioon years ago. (B)to have split (C)to split (E)to be split 答:(B) 1.为何要用完成式，句意是说从那时问始就已经分裂开了吗? 2."split"应该算是"instantaneous verb"?! "split"的当下动作应该就结束了吧，若是如此?，就不能用完成式 2. [Japan is a culture of accommodation and constraint, a system of forms, etiquette, and images, making its] ever-present congestion tolerable. (D) Japan's is a culture of accommodation and constraint, a system of forms, etiquette, and images that makes the (E) Japan's is a culture of accommodation and constraint, of a system of forms, etiquette, and images, which makes the 答:(D) ，答案(D)中"a system of forms, etiquette, and images"前为何不用有 连接词和"a culture of accomodation and constraint"作区隔呢? 另外。"that makes the"不会有修饰语误置的问题吗?(修饰"images") 3. One analyst of the liquor industry estimated that this year a few liquor stores have experienced [declining sales of up to fifty percent but predicted that the industry as a whole will maintain a volume of sales fairly close to last year.] (C) up to fifty percent in declining sales but predicted that the industry as a whole would maintain a volume of sales fairly close to last year's (D) sales declines of up to fifty percent but predicted that the industry as a whole would maintain a volume of sales fairly close to last year's (E) declines up to fifty percent of sales but predicted that the industry as a whole will have maintained a volume of sales fairly close to last year's 答:(D) 这题一直看不懂(C)(D)(E)中的排列顺序 4. The cardiac research center is experimenting with a drug called streptokinase that can stop a heart attack [as they are still in progress]. (C) as it is still progressing (D) while still progressing (E) while it is still in progress 答:(E) 答案(D)可以把它看成是"while it still progresses"的缩写吗? PS: 以上问题 感谢各位的回答 大家一起加油^^ --

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