牛津英语8A unit4 知识点总结

1.Look短语总结Lookafter，lookout,lookat,lookthroughlookaround,lookover,looklike注：look可以做系动词，后接形容词做表语，构成系表结构。常见的系动词有：sound，smell,taste,feel,keep,become,get,turn.grow2.Call的用法1)Callsb+名称2）callone’sname,点名，喊某人的名字3）callonsb:拜访某人，callatsp拜访某地注：打电话表达：callsbup=ringsbup=givesbacall3.近义词区别1）another,other,theother,others2)Through,across,over,cross3)because,becauseof4)look,see,watch5)As,like4句型：it’s+adj+of/forsbtodosth5.Sothat:可以引导目的状从，结果状从So…that:只可以引导结果状从注：跟such…that..的区别6.Indanger，outofdangerdanger的形容词是dangerous7.Atatime:一次每次atalltimes=always总是，atanytime:随时attimes=sometimes有时，atthesametime,同时8.Else，常用在疑问词后，whatelse….9.Writetosb:写信给某人writedown:写下，记下语法：条件句引导条件状语的词或词组有：if(如果，假如),unless(除非，如果不)，solongas(只要)，aslongas(只要)，incase(如果，万一)，ifonly(只要),onlyif(如果)等。如：(a)IfitisfinenextSunday，weshallhaveaspringouting．(b)Youwillnotpasstheexamunlessyoustudyhard．(c)Iwillgothereaslongasheinvitesme.(d)Takeanumbrellawithyouincaseitrains.If引导的条件句注意：主将从现(a)Ifitstopsraining，I'llgoforawalk.(b)Ifitdoesn'tstopraining,I’llstayathome．(c)Ifit'sready,he'llbringittomorrow．(d)Whatareyougoingtodoifitrains?[注意]if还可引导宾语从句，试比较：(a)We'llgotovisittheGreatWallifitdoesn'traintomorrow．(if引导的是条件从句)(b)Wedon‘tknowifitwillraintomorrow.(if引导的是宾语从句，意思为“是否”）注：whether也可用于引导宾语从句，可与if替换；但whether可与or连用，而if不能。如：(a)Pleasetellmewhetheryoucancomeornot．(b)Heaskedwhether／ifyoureceivedtheletter．(c)Doyouknowwhether／ifthey’llleaveforJapan．1—10ABAACACBBD11—20ACBCABDABC1.peaceful2.leaves3.following.4.hunters5.herself6.looking7.more8.carefully9.youryouThekey