it、one、that用法与区别0.ppt

替代词it，that，one(s)，those用法区别【学习目标】为了避免重复,it,that,one(s),those都可用来代替上文出现的名词，但它们的用法不同。现在来区别。【知识概括】用法1.it代替的是前面提到的同一名称的同一事物，即同名同物。所代替的名词可以是可数名词,也可以是不可数名词。如：Thename"whitewater"comesfromthefactthatthewaterinthesestreamsandriverslookswhitewhenitmovesquickly.（it代替不可数名词water)Andtoday,ifyougotoSaltLakeCity,youcanseeamountainwithseagullsontopofit.(it代替可数名词mountain)I'dliketolookatthatatlas.MayIborrowit?(it代替可数名词atlas)区别II.one与that虽可用来指代同名异物,但one为泛指,相当于a／an＋名词;that为特指,相当于the＋名词。所以one所指代的名词的修饰语一般为a／an／some／any;that所指代的名词的修饰语往往是the／this／that。Achairmadeofsteelisstrongerthanonemadeofwood.（该句中one可以换成achair）Thewaterinthecupishotterthanthatinthepot.（该句中that可以换成thewater）III.one只能代替可数名词单数,代替可数名词复数时用ones;that既可以代替不可数名词也可以代替可数名词单数,代替可数名词复数时用those。Ilikethispenmorethanthatone.（one代替可数名词单数pen）Therewereafewyoungpeopleandsomeolderonesinthehouse.（ones代替可数名词复数people）Mary'shandwritingisfarbetterthanthatofPeter.（that代替不可数名词handwriting）Thesepicturesaremorebeautifulthanthose.（those代替可数名词复数pictures）IV.one既可代替事物,也可代替人,that只能代替事物而不能代替人。有时可以用theone或theones代替that或those。Theone／Thatonthetableismine.（该句中Theone代替事物,并且也可以用That）Heistheteacher,theonewhoislovedbythestudents.（该句中theone代替人,不能用that）Headvisedthefarmerstochoosethebestseed-heads,theones／thosethathadthebestcolor.（该句中theones代替事物,并且也可以用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不能有前置修饰语,但可有后置修饰语。Cookwasastrictbutgoodcaptain,onewhotookgoodcareofhissailors.Thewaterinthewelliscleanerthanthatintheriver.VI.it可以替代句中的不定式或从句等,充当形式主语或形式宾语。one与that均无此用法。Itisknowntoeverybodythatthemoontravelsaroundtheearthonceeverymonth.Ifoundithardtogetonwithher.VII.it与that均可以替代上文全句的内容或部分内容,而one／ones则不可以。Hehassavedmylife;I'llneverforgetit.（it代替第一分句）Tomispaintinghishouse.Iamtoldhedoesiteveryfouryears.（it代替前面分句的部分内容paintinghishouse）Let'ssaywemeethereatthreeo'clock.Thatoughttogiveyoutimetobuyeverything.（That代替前面表述的内容）MrZhanggavethetextbookstoallthepupilsexcept_____whohadalreadytakenthem.A.theonesB.onesC.someD.theothers2.Ifind_____easyenoughtogetonwithPam.A.thatB.thisC.oneD.it3.IfIcanst