Unit2Growingpainsandgains基本結構為“主語was/were動詞過去分詞（by動作執(zhí)行者）”主語為單數(shù)（I/he/she/it）was，復數(shù)（we/you/they）時用were否定形式：主語was/werenot動詞過去分詞（by動作執(zhí)行者）。Bobwasencouragedtotrainforthehighjump.（肯定句Connie'sabilityinswimmingwasnotnoticedbyothercoaches.（否定句Tomrepairedhissister’sbrokenbikelast Theoldbuildingwaspulleddownlast Theselettersweresenttothecustomersbythesecretary 主語was/were動詞過去分詞by動作執(zhí)行者主語was/werenot動詞過去分詞by動作執(zhí)行者Was/Were主語by動作執(zhí)行者)？肯定回答：Yes,itwas./否定回答：No,itwasn't.特殊疑問詞（What/Who/When/Where/Why/How等）was/were主語 /否定回答 主動語態(tài)中“動詞sbtodosth”結構，變被動時to，結構為“sb+was/were++todosth”。主動：TheschoolallowedConnietojointheswimming被動：ConniewasallowedtojointheswimmingteambytheTheteacheraskedTomtofinishthehomeworkon Myparentsallowedmetogooutwithfriendslast Doctorsadvisedhertoeatmore TheThemanagertoldtheworkerstostarttheproject 三種時態(tài)被動語態(tài)對比（以do為例do/am/is/are+was/were+will/begoingto+will/begoingto+be++am/is/are+主語+was/were++willbe+動詞過+am/is/are+not+was/were+++willnotbe+動詞過去分詞(縮寫won’tAm/Is/Are+主語+動詞+am/is/are.否定回答：No,主語代詞amWas/Were+動肯定回答：Yes,主語代詞+was/were.否定回答：No,主語代詞+Will+be+動詞肯定回答：Yes主語代詞+will.否定回答：No,主語代詞++主語+特殊疑問詞 was/were+主語+動特殊疑問詞+will+主語+be+動詞過去分詞？（疑問詞為Who時：Whowill+be動詞過去分詞Peoplegrowteain Theywillholdthemeetinginthe 短暫性動詞（borrow、buy、open）的被動語態(tài)不能for/since引導的時間錯誤：Thebookwasborrowedfortwo正確：Thebookhasbeenkeptfortwoweeks.（需結合現(xiàn)在完成時被動語態(tài)結構為“情態(tài)動詞be動詞過去分詞”，表示“某事必須/可以/應該被做”例句：Therulesmustbefollowed.（這些規(guī)則必須被遵守。例句：Thisproblemcanbesolvedeasily.（這個問題可以被輕松解決。下列句子中，表達正確的一項是（ThepenwasboughtforthreeThepenhasbeenhadbyherforthreeThepenhasbeenboughtforthreeThepenwashadforthree—Howlong thelibrary —SincelastA.has; B.was; C.has;been D.was;Thesemistakes bycare