too...to--so...that...and-enough-...to...

too…to,enough…to及so…that…的句型转换too…to…太…以致于…enough…to足够…so…that…如此…以致于…1.so…that…so后面既可以跟形容词也可以跟副词，that后跟结果状语从句，常与情态动词can连用。例如：Theboyissostrongthathecancarrytheheavysuitcase.Theweatherissosunnythatwecangohiking.Thebusisrunningsofastthateveryonewillfly.Mymotherissobeautifulthatwealllikeher.2.enough…to:enough既可以修饰名词也可以修饰形容词和副词，但是修饰名词时既可以放在名词之前也可以放在名词之后，而修饰形容词和副词必须放在他们之后。例如：Thetreeisshortenoughforustoclimb.Ihaveenoughtimetofinishourwork.Theprettygirldoesherhomeworkcarefullyenoughtogetherteacher’spraise.如果主语是物的，可以在to之前加forsomebody。3.too…to…to是表否定，与enough…to…相同的是如果物体作主语，在to的前面加forsomebody。例如：Thechildrenaretoosmarttoscoldsomuch.Wearetoosmalltoreachtheapples.Thespeakersaidtoofastforthemtohearclearly.练习题：1.Theyaresohappythattheyforgetthetime.（用too…to…和enough…to…互换）2.Weareoldenoughtodressourselves.（用too…to…和so…that…互换）3.Theproblemissodifficultthatnobodycanworkitout（用too…to…和enough…to…互换）4.Theseorangesaresodeliciousthatthevisitorscan’twait.（用too…to…和enough…to…互换）5.Thesweateristoosmallformysistertowear.（用enough…to…和so…that…互换）