Last year, these ships transported a total of…Last year, these ships transported a total of 83,34 million tons of cargo, a 4.4 percent increase ______ the previous year.(A)over(B)than(C)up(D)beyond答案是a,为什么不选b

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Last year, these ships transported a total of…Last year, these ships transported a total of 83,34 million tons of cargo, a 4.4 percent increase ______ the previous year.(A)over(B)than(C)up(D)beyond答案是a,为什么不选b

Last year, these ships transported a total of…Last year, these ships transported a total of 83,34 million tons of cargo, a 4.4 percent increase ______ the previous year.(A)over(B)than(C)up(D)beyond答案是a,为什么不选b
Last year, these ships transported a total of…
Last year, these ships transported a total of 83,34 million tons of cargo, a 4.4 percent increase ______ the previous year.
(A)over
(B)than
(C)up
(D)beyond
答案是a,为什么不选b

Last year, these ships transported a total of…Last year, these ships transported a total of 83,34 million tons of cargo, a 4.4 percent increase ______ the previous year.(A)over(B)than(C)up(D)beyond答案是a,为什么不选b
在口语中,over 等于 more than,句中的 a 4.4 percent increase (over) the previous year = a 4.4 percent (more) increase (than) the previous year,意思是“比上一年度增加4.4%(以4.4%的增长率超过上一年度)”.
可见,than 必须与比较级连用.但是,句中没有比较级,只能选 over.
如果表示“是上一年度4.4%的增长”这一意思也可以用 (as) a 4.4 percent (much) increase (as) the previous year 表示.

year over year,年度变化
increase over the previous year,比上年增长

than用在比较级时