八年級(jí)語法總結(jié)

1、八年級(jí)英語（下）語法知識(shí)總結(jié)一、“系動(dòng)詞形容詞”系表結(jié)構(gòu)1.表示狀態(tài)的系動(dòng)詞：be(isamarewaswere)，look(看起來)sound（聽起來）taste(嘗起來)，smell(聞起來)，fell(感覺，摸起來)seem(似乎)，keep(保持)Stay（保持）。Iamfine.我很好。Youlookexcited.你看起來很興奮。WhocookedthechickenIt_______sonice.Mymom.A.looks

2、B.feesC.tastesD.sounds注：seem好像似乎，其用法為：Seem形容詞如：Youseemhappy.Seemtodosth.如：Theyseemtoknoweverything.Seemthat賓語從句如：Itseemsthattheyknoweverything.2.表示轉(zhuǎn)變或結(jié)果的系動(dòng)詞：getturngo(變)becomegrow.如:Theweatherisgettingwarm.天氣正變暖。Thefoodg

3、oesbad.Youcan`teatit.這食物變壞了，你不能吃.二、由because引導(dǎo)的原因狀語從句Because意為因?yàn)椋捎?。Because引導(dǎo)的句子通常用來回答why引導(dǎo)的問句或用來引導(dǎo)原因狀語從句。如：Becauseitwaswethetookataxi.Whyare`tyougoingwithusBecauseIhaveabadcold.練習(xí)題：Hedidn`tgotoschool______hehadaheadache.

4、A.soB.becauseC.butD.thatHecriedbecausehisdogdied.(對(duì)劃線部分提問)______________hecry三、由as…as…notasso…as…構(gòu)成的同級(jí)比較1.“A動(dòng)詞as形容詞副詞原級(jí)B“意為A和B一樣…Sheisasactiveasherfriends.她和她的朋友一樣活躍。HejumpsashighasJim.他和吉姆跳得一樣高。2.A動(dòng)詞notasso形容詞副詞原級(jí)asB“A不

5、如B….”=A動(dòng)詞形容詞副詞比較級(jí)thanB“A比B…”Jackdoesn`trunasfastasJack.=TomrunsfasterthanJack.練習(xí)題：MariaisbraverthanHelen.(同意句轉(zhuǎn)換)Maria________________________Helen.四、使役動(dòng)詞makelet的用法。七、表示方位的介詞inontoin表示在某范圍之內(nèi)ShanghailiesintheeastofChina.(上

6、海屬于中國(guó)范圍)on表示兩地接壤HeilongjiangisonthenthofJilin.(黑龍江與吉林省相接壤)to表示在范圍之外，兩地不接壤JapanistotheeastofChina.Fujianis____thesoutheastofChinaTaiwanis____thesoutheastofFujian.A.intoB.toinC.totoD.inon八、if引導(dǎo)的條件狀語從句if意為“如果，要是，假如”，由if引導(dǎo)的條

7、件狀語從句，若主句是將來時(shí)，祈使句或含有情態(tài)動(dòng)詞時(shí)，從句常用一般現(xiàn)在時(shí)。如：Ifyouareillyoumustgotoseethedoct.I`llgotoseeafilmifIhavetime.Pleaseringmeupifyouwanttogowithme.Askfhelp.Youareintrouble.(用if合成一句)________________________________.九、賓語從句1.that引導(dǎo)的賓語從句其

8、主句的謂語動(dòng)詞主要是thinkhopeknowsayseetellbelievewishhearfeel或beafraidbesurebegladbewriedbeangrybehappy.如：Iknow(that)sheisateacher.Iamsure(that)youareright.Ididn`tthink(that)waswrongyesterday.2.ifwhether引導(dǎo)的賓語從句意為“是否，是不是”，賓語從句用陳述語

9、序，ifwhether可以互換，但不可以省略。當(dāng)句子中含有not時(shí)，只能用whether.如：Idon`tknowwhetherifhewillbelate.Idon`tknowwhethernotitrains.練習(xí)題：Couldyoutellme____hewillcomenotA.ifB.thatC.whetherD.3.主句謂語動(dòng)詞為一般過去時(shí)態(tài)的賓語從句若主句是過去時(shí)，從句謂語動(dòng)詞的時(shí)態(tài)就要變成相應(yīng)的過去時(shí)態(tài)，即：一般現(xiàn)在時(shí)變