考博英语常用it 作形式主语的句型

汉语中有许多习惯用语。其中有的是用“人们”、“有人”、“大家”等作主语，有的看来是无主句，有的则是句子中的独立成分，如“应该说”、“必须指出”、“已经证明”等， 在英语中则常用it 作形式主语的句型来表达这些习惯语。 |kBg8)
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（1）    人们（有人、大家）认为…… It is considered (or thought ) that… 5@R15q@c6n  
（2）    普遍（一般、通常）认为……It is generally (usually ) accepted (or agreed, recognized) that… gZ`#tlA~  
（3）    人们（有人、大家）相信…… It is believed that… c"f-$^<  
（4）    众所周知…… It is well-known that… mR"2  
（5）    据说（有人说）…… It is said that… 7})!>p )  
（6）    据悉…… It is learned that… #"=yQZ6Y  
（7）    据推测…… It is supposed that… dN$D6*  
（8）    据估计（预计）…… It is estimated (predicated, calculated) that… E5Snl#Gl\0  
（9）    据报导…… It is reported that… |k7ts&2  
（10）    必须指出…… It must be pointed out that… fJF8/IQ4  
（11）    必须（应该）承认…… It must (should ) be admitted that… UijuJ(Tle  
（12）    可见（可以看出）…… It will be seen that…  |(J ?#
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（13）    由此可见…… It will be seen from this that… ~$y#(YbH  
（14）    不用说（谁都知道）…… It is understood that … y:i[~y  
（15）    无可否认…… It cannot be denied that… ?v
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（16）    已经证明…… It has been proved that… .=b +O~  
（17）    可以肯定…… It may be confirmed that… hZss  
（18）    可以有把握地说……It may be safely said that… iP#A
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（19）    人们有时会问…… It is sometimes asked that… jziA;6uL  
（20）    人们希望…… It is expected (hoped ) that… 6gg#Z  
(21)  毫不夸张地说…… It is no exaggeration to say that…… ys.!S.k+