41.there is an upward trend in the number of...
　　...數(shù)字呈上升趨勢。

　　42.a considerable increase/decrease occurred from...to...
　　...到...發(fā)生急劇上升。

　　43.from...to...the rate of decrease slow down.
　　從...到...，下降速率減慢。

　　44.from this year on，there was a gradual decline reduction in the...,reaching a figure of...
　　從這年起，...逐漸下降至...

　　45.be similar to...
　　與...相似

　　46.be the same as...
　　與...相同

　　47.there are a lot similarities/differences between...and...
　　...與...之間有許多相似(不同)之處

　　48.a has something in common with b
　　a于b有共同之處。

　　49.the difference between a and b lies in...
　　a與b之間的差別在于...

　　50...(year)witnessed/saw a sharp rise in...
　　...年...急劇上升。