雅思口语Part3中一类重要的题型是描述事物的变化。比如20年前、30年前和现在的区别。或者你父母、你爷爷奶奶年轻的时候和现在的区别。今天小编就来讲一讲这个题型。问题示例饮食习惯变化：Howaretheeatinghabitsnowinyourcountrydifferentfromeatinghabitsinthepast?

休闲方式变化：Arethetypesofleisureactivitiesthatarepopulartodaythesameasthosethatwerepopularwhenyourparentswereyoung?

购物习惯变化：Howhaveshoppinghabitschangedoverrecentyears?

交通方式变化：Havethetypesoftransportpeopleusechangedmuchoverthelastfewdecades?

描述变化这种题型时需要注意语法和词组。

描述过去

描述现在和过去不同的事常用usedto"VietnamusedtobeacolonyofFrance,(butnowitisindependent)""JimmyCarterusedtobethePresidentoftheUnitedStates,(butnowheisn’t.)"Thiscan,ofcoursebeusedtogivepersonalinformation."Iusedtosmoke,(butIgaveup2yearsago.)""MikeusedtobeadetectiveintheCID,(butnowhe’sateacher)"

描述比较比较是一种很好的描述变化的方法。一般过去时，现在完成时，一般现在时三种时态都可能用到。一般过去时："Thirtyyearsago,thestreetsweremuchquieterthannow."一般过去时："Ithinkthatreadingwasmuchmorepopularinthepast."现在完成时："Thestreetshavebecomemuchnoisier."(Notice,atimeisnotneeded)一般现在时："Readingismuchlesspopularthanitwasinthepast."

猜测

将来的事情，谁也不确定会怎么样，做猜测的时候经常用would。"Itwouldhavebeenharderformygrandfathertofindoutaboutinternationalnews,becausetherewasnoradioorT.Vinhisvillage.""Inthepast,peoplewouldhavetraveledlessoften."

其他词汇也可以表示猜测(perhaps,possibly,might,may,etc.)"I’mnotsurebut,perhaps,theymighthavestudiedlesssciencethirtyyearsago""Possibly,inmyfather’sday,peoplecouldhaveplayedmoresport."

小总结问题的常见形式"Howdoyouthink…isdifferentfromthirtyyearsago?""Inwhatwayshas…changedfromwhenyourparentswereyoung？"Howis…differentfromtwentyyearsago?"

常用词组及时态

描述过去用usedto比较现在与过去可以用一般过去时/一般现在时/现在完成时猜测未来用would,perhaps,possibly,might,may等。