41.there is an upward trend in the number of... ...数字呈上升趋势。
42.a considerable increase/decrease occurred from...to... ...到...发生急剧上升。
43.from...to...the rate of decrease slow down. 从...到...，下降速率减慢。
44.from this year on，there was a gradual declinel reduction in the...,reaching a figure of... 从这年起，...逐渐下降至...
45.be similar to... 与...相似
46.be the same as... 与...相同
47.there are a lot similarities/differences between...and... ...与...之间有许多相似(不同)之处