缺主語缺賓語缺定語時間地點方式原因主語從句人:who人:who/whomWhichWhenWhereHowWhy物:what物:what備注⒈主語從句中不缺任何成分時,That不能省.⒉主語從句中只能用Whether.⒊主語從句中可用It代替主語.表語從句人:who人:who/whomWhichWhenWhereHowWhy(系動詞后)物:what物:what備注⒈Itisbecause⒉Thereasonwhy…is/wasthat⒊表語從句中不能用If.只能用asif.同位語從句不填人:who/whom不填WhenWhereHowWhy(thenews等)物:what備注⒈…thatif/thatwhat⒉可以隔開⒊當有解釋為"建議,要求,命令"時,要用虛擬賓語從句人:who人:who/whomWhichWhenWhereHowWhy(動詞or介詞后)物:what物:what備注⒈Iassareyouthat…我向你保證Iinformyouthat…我告訴你…⒉主語+謂語+it+(adj)+that+賓語從句⒊賓語從句中,用陳述句語序除：What'swrongwithyou?What'sthematterwithyou?What'sthetroublewithyou?⒋doubt用法：sb.doubt+WH-sbdon'tdoubt+thatsbneverdoubt+thatDosb.doubt…+that定語人:who/that人:who/whom/thatWhoseWhenWherehowwhy物:that/which物:that/which/不填ofwhichinwhichinwhichbywhichforwhichofwhomonwhichonwhichatwhichatwhich備注：⒈thewayinwhich/thewaythat/theway不填⒉thesame…as和thesame…that區別such...as和such...that區別⒊situation/case/envionment/condition+Wherepointwhen/pointwhere⒋duringwhichtime.在…期間bywhichtime.到…時間為止狀語從句連接詞時間狀語從句whenwheneverwhileasbeforeaftertilluntilsinceassoonashardly...whennosooner…thaneverytimebythetimethemoment..地點狀語從句wherewhereveranywhereeverywhere狀語從句連接詞原因狀語從句becauseassinceforfearthatconsideringthatseeingthatincasenowthat..結果狀語從句thatso(that)suchthat目的狀語從句sosothatinorderthatlestincase條件狀語從句ifunlesssupposinggiven(that)incase/oncondition(that)so(as)longas..讓步狀語從句thoughalthoughifeventhough/ifwhilewhateverinspiteofwhereverhoweverwheneverwhoever方式狀語從句as