(If the new airboat does what it is to be doing)----- travel at high speeds undeterred by sandbars, crocodile-infested mudflats, or marshy hippo haunts-----it could revolutionize transport on the 2,900-mile-long Congo River
A)
B)if the new airboat does what it is supposed to do
C) if it does as the new airboat is supposed to do
D ) doing what it is the new airboat is supposed to do
E)doing what the new airboat is to be doing
WHY answer is B)not A), MR.bai 不是说不要随意加文 中没有的词吗/SUPPOSED？？？？
Sales of United States manufactured goods to nonindustrialized countries rose to $167 billion in 1992,(which is 14 percent more than the previous year )and largely offsets weak demand from Eurpoe and Japan
A)
B) which is 14 percent higher than it was the previous year
C) 14 percent higher than the previous year’s figure
D) an amount that is 14 percent more than the previous year was
E) an amount that is 14 percent higher than the previous year’s figure
Why the answer is E) NOT C)
Very popular from 190 until the 1920’s , the renewed interest in ceiling fans began when the energy crisis in 1974 forced homeowners to look for alter native methods of heating and cooling.
A)
B) The renewed interest in ceiling fans, which were very popular from 1900 until the 1920’s began was beginning
C) After they were very popular from 1900 until the 1920’s , the renewed interest in ceiling fans was beginning
D) Ceiling fans were very popular from 1900 until the 1920s ,with renewed interest beginning in them
WHY answer is B) ??? “from until “ 句式对吗？怎么不是“FROM TO ”？？？
thanks very much作者: princess 时间: 2002-9-15 08:43
1.主句用的是虚拟语气。你题目抄对了吗？我怎么记得B是用did？待会儿找找看：p
2.主要是比较的双方要有可比性
3.只有B没有歧义，A C 的主句的逻辑主语都应该是ceilingfan,D改变了句子的重心，强调了popular from1900 until 1920,而不是renewed interest. from until没有错阿作者: princess 时间: 2002-9-15 13:54
关于from...until找了个例子（OG 115)
From the time of its defeat by the Germans in 1940 until its liberation in 1944, France was a bitter and divided country; a kind of civil war raged in the Vichy government (between those who wanted to collaborate with the Nazis with those who opposed them.)作者: tongxun 时间: 2002-9-16 00:54
