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。 ey<z#Q5+  
（1）    人们（有人、大家）认为…… It is considered (or thought ) that… u@Ni *)p`  
（2）    普遍（一般、通常）认为……It is generally (usually ) accepted (or agreed, recognized) that… 
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（3）    人们（有人、大家）相信…… It is believed that… (yEU9R$I"  
（4）    众所周知…… It is well-known that… 3-;<G  
（5）    据说（有人说）…… It is said that… *fyaAv  
（6）    据悉…… It is learned that… h3\(660>$  
（7）    据推测…… It is supposed that… y^X]q[-?  
（8）    据估计（预计）…… It is estimated (predicated, calculated) that… Z
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（9）    据报导…… It is reported that… d[;&2Jz*  
（10）    必须指出…… It must be pointed out that… &R<K>i  
（11）    必须（应该）承认…… It must (should ) be admitted that… #MMp0  
（12）    可见（可以看出）…… It will be seen that… 3$_ - 0>  
（13）    由此可见…… It will be seen from this that… 97>|eDc Y  
（14）    不用说（谁都知道）…… It is understood that … (YPG4:[  
（15）    无可否认…… It cannot be denied that… 3s*mq@~1X  
（16）    已经证明…… It has been proved that… D iHj!tZN  
（17）    可以肯定…… It may be confirmed that… Hp(41Eb,  
（18）    可以有把握地说……It may be safely said that… PCBV6Y7r  
（19）    人们有时会问…… It is sometimes asked that… ^6CPC@B1  
（20）    人们希望…… It is expected (hoped ) that… 3][   
(21)  毫不夸张地说…… It is no exaggeration to say that…… ^#w9!I{4.