Not surprisingly 中的 surprisingly 是副词,这是什么句型

求权威翻译!6小时内回复!
因为时间紧迫,可能有错别字~麻烦更正……
Not surprisingly,those who were praised improved dramatically.Those who were criticized improved also,but not so much.And the scores of the children who were ignored hardly improved at all.Interestingly the brightest children were helped just as much by criticism as by praise,but the less able children reacted badly to criticism,needed praise the most.Yet the latter are the very youngsters who,in most schools,fail to get the pat on the back.
To give praise costs the giver nothing but a moment’s thought and a moment’s effort — perhaps a quick phone call to pass on a compliment,or five minutes spent writing an appreciative letter.It is such a small investment — and yet consider the results it may produce.“I can live for two months on a good compliment,”said Mark Twain.

翻译这句话,人工翻译
Not surprisingly, the scientists said, most people thought they were better than average at multitasking, and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once.

为什么用not surprisingly 而不是no surprisingly
Their car was hit bu a truck on the way to the railway station
.Not surprisingly they missed the train

a walk in city,and,not surprisingly,you will find people talking loudly over thier mobilephone
为什么句首是TAKE不是TAKING?