itonethat的用法与区别

1、it/one/that的用法和差别I.itonethat三者均可用作代词,指代前面提到的名词。一般说来,it指代同名同物;one与that则指代同名异物。Ihavelostmyumbrella;Imlookingforit.（该句中it就是指前面的myumbrella）Ihavelostmyumbrella;IthinkImustbuyone.泛指,由于myumbrella已经丢了）（one在该句中表Theumbrellayouboughtischeaper在该句中特指“theumbrellaIbought”,bought”）thanthatIbought.（代替词以差别“theumbrell

2、ayouthat.one与that虽可用来指代同名异物,但one为泛指,相当于aan名词;that为特指,相当于the名词。因此one所指代的名词的修饰语一般为aansomeany;that所指代的名词的修饰语常常是thethisthat。Achairmadeofsteelisstrongerthanonemadeofwood.one能够换成achair）（该句中Thewaterinthecupishotterthanthatinthepot.能够换成thewater）（该句中that.one只好取代可数名词单数,取代可数名词复数时用ones;that既可以取代不行数名词也能够取代可数名词单数

3、,取代可数名词复数时用those。Ilikethispenmorethanthatone.（one取代可数名词单数pen）Therewereafewyoungpeopleandsomeolderonesinthehouse.（ones取代可数名词复数people）MaryshandwritingisfarbetterthanthatofPeter.可数名词handwriting）（that取代不Thesepicturesaremorebeautifulthanthose.复数pictures）（those取代可数名词IV.one既可取代事物,也可取代人,that只好取代事物而不可以取代人。有时

4、能够用theone或theones取代that或those。TheoneThatonthetableismine.且也能够用That）（该句中Theone取代事物,并Heistheteacher,theonewhoislovedbythestudents.theone取代人,不可以用that）（该句中Headvisedthefarmerstochoosethebestseed-heads,theonesthosethathadthebestcolor.（该句中theones取代事物,而且也能够用those）V.one一般有前置修饰语,有时也可有后置修饰语或不用修饰语。而that不可以有前置修饰

5、语,但可有后置修饰语。Cookwasastrictbutgoodcaptain,onewhotookgoodcareofhissailors.Thewaterinthewelliscleanerthanthatintheriver.VI.it能够代替句中的不定式或从句等,充任形式主语或形式宾语。one与that均无此用法。Itisknowntoeverybodythatthemoontravelsaroundtheearthonceeverymonth.Ifoundithardtogetonwithher.VII.it与that均能够代替上文全句的内容或部分内容,而oneones则不可以够。H

6、ehassavedmylife;Illneverforgetit.（it取代第一分句）Tomispaintinghishouse.Iamtold取代前面分句的部分内容paintinghishousehedoesit）everyfouryears.（itLetssaywemeethereatthreeoclock.Thatoughttogiveyoutimetobuyeverything.（That取代前面表述的内容）有关练习1.MrZhanggavethetextbookstoallthepupilsexcept_whohadalreadytakenthem.Ihaventapen.Canyoulendme_?5._isnece