八年级下册英语第四单元知识点总结

八年级下册英语第四单元知识点总结重点语法：宾语从句结构：主语+谓语动词+宾语从句（主语+谓语动词+宾语/表语）例句：----“I'mgoodatEnglish.”Hesays.（改为加宾语从句的复合句）----HesaysI'mgoodatEnglish.注意：①主句是一般现在时态，宾语从句的时态不受其影响。例句：Hesays“I'mgoodatEnglishnow.”HesaysIwasgoodatmathematicswhenIwasyoung.②主句是过去时态，宾语从句也要用过去时态。例句：HesaidIwasgoodatmathematicswhenIwasyoungyesterday.HesaidIwasgoodatEnglishnowyesterday.③宾语从句是客观真理时永远用一般现在时态。例句：Ourteachersays24hoursmakeaday.Ourteachersaidthesungivesussomanyenergyyesterday.④动词原形不能作主语，必须用其-ing形式。例句：Shesaidhelpingotherschangedherlife.重点短语：directspeech直接引语reportedspeech=indirectspeech间接引语firstofall=atfirst首先passon传递besupposedtodosth.应该做某事begoodat=dowellin在某方面做得好ingoodhealth身体健康getover克服openup打开carefor=takecareof=lookafter照料；照顾notanymore=notanylonger=nolonger不再haveacold感冒end-of-yearexam年终考试getnervous变得紧张forgettodosth.忘记做某事（该事未做）forgetdoingsth.忘记做某事（该事已做）it's+adj.+[forsb.]+todosth.做某事[对某人来说]……（加形容词）context上下文