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
48.a has something in common with b
a于b有共同之处。
49.the difference between a and b lies in...
a与b之间的差别在于...
50...(year)witnessed/saw a sharp rise in...
...年...急剧上升