齊國斌
筆者在批改作業時經常發現有學生在非謂語動詞考題上誤判、盲選或蒙猜,原因是學生不能理順非謂語動詞的邏輯關系,不能分辨非謂語動詞是及物還是不及物。為幫助學生深刻領會該知識點用法,筆者以本班56名學生的同類錯題為遴選源,列舉并剖析了八種錯答率較高的題型,希冀對學生解答此類考題有所幫助。
1.V-ing分詞與V-ed分詞用法辨析
【題例】 himself with necessary knowledge and skills, the young man went to the job market with much confidence.
A.Equipped,30% B.Equipping,30%
C.Having equipped,35% D.Being equipped,5%
【解析】本題正答項為C,正答率35%。選A的同學或許不知Equipped是過去分詞還是過去時、是表主動還是表被動,選B的學生則誤認為Equipping發生的時間與謂語動詞went發生的時間同步,而選D的同學則未能區分V-ing一般被動式與V-ed分詞的構成與用法。
【說明】himself作Having equipped的邏輯賓語是本題題眼,懂得此理的同學便會立即排除A、D,鎖定B、C。因為B、C兩項的邏輯主語與主句主語同為The young man,且本身也是及物動詞,又是主動陳述關系;此外,“使他自己具備必需的知識與技能”在先,“滿懷信心去人才市場”在后都確定V-ing的完成式形式C項為正答。
2.V-ed分詞與V-ing分詞作伴隨狀語區別
【題例】The spokesman was seated in front of all the journalists at the press conference,_______ to answer all kinds of questions.
A.prepared,8% B.preparing,82%
C.to be prepared,4% D.having prepared, 6%
【解析】本題A是正答項,但僅有8%的同學選對答案,B項最具迷惑性和干擾性,也是錯答率最高的選項,主要是學生不能正確區分prepare與prepared的詞性。
【說明】本題旨在考查V-ed分詞作伴隨狀語在語境中的運用,是and he was prepared to answer all kinds of questions并列句的簡略形式。be prepared to do sth意為“已經作好做……的準備,尤其隱含隨時應付意想不到事情的發生”,而prepare to do ....意思僅為“準備做……”。
3.V-to do一般被動式與完成被動式的用法差異
【題例】Mr Li was reported ______ in that country when he was having holidays there last year.
A.being badly treated,20% B.to have been treated badly,26%
C.to be treated badly,48% D.treating badly,6%
【解析】本題正確項為B,正答率為26%。此處,48%學生知道V-to do與Mr Li構成邏輯被動,但在“was reported”與“to be treated”兩動作孰先孰后問題上則糾纏不清,以致錯選C;而有26%學生錯以為本題考查V-ing作賓補。
【說明】本句型為report +sb/sth + to have done結構的被動式,并非report+obj+doing句型,亦非report+doing句式。再如,The drunk driver was reported to have been rescued from the crashed car。
4.感官類動詞三種不同形式賓補的對比
【題例】-Congratulations on your success in completing the experiment .
-This is really the result we expected to see _______ after so much hard work.
A.achieved,47% B.achieve,6%
C.achieving,22% D.to achieve,25%
【解析】本題正答項為A,正答率47%,錯答率53%。錯選的根本原因在于沒有理順see,the result與achieve間的三角關系,尤其未曾領會achieve是及物還是非及物詞性。
【說明】本題的解題關鍵是先確定we expected to see....這個定語從句修飾的先行詞the result;其次,在V-ing,V-to do,V-ed之間選擇動詞不定式to see的邏輯賓補。由于the result在此不能作V-ing和V–to do邏輯主語所以排除B、C、D三項。此處惟有用V-ed分詞achieved 作to see的邏輯賓補與the result構成邏輯被動關系才合乎語法規則。有此類似用法的動詞還有find,get,have,feel,leave,see等。
5.連詞+V-ed與連詞+V-ing作狀語用法比較
【題例】At the United Nations Climate Change Conference, the UN Secretary General points out that, , the climate situation will get worse and worse.
A.if not dealing with properly,31%
B.unless dealing with properly,21%
C.if properly dealt with,14%
D.unless properly dealt with,34%
【解析】本題正答項為D,正答率34%,錯答率66%。選A、B的同學可能不懂the climate situation與deal with之間邏輯被動關系,也不知道deal with為及物動詞短語,選C同學或許不曾把握if與unless在意義上的細微差別。
【說明】本句考查連詞+V-ed分詞用法。V-ed分詞結構用作狀語時,前面往往帶有when,if,while,though,as if,once,even if等連詞,同時省略“主語+be的人稱變化形式”,省略的條件是主語必須與主句的主語相一致。
6.V-to do完成被動與V-ing被動式用法對比
【考例】-It is said that Johnson is the first young teacher ______ to professor in your university this year.
-Exactly._____ of his own competence is an important factors in his success.
A.promoted; Convincing, 17%
B.to have been promoted; Convincing, 51%
C.promoted; Being convinced, 6%
D.to have been promoted; Being convinced, 25%
【解析】本題正答項為D,正答率僅有25%,其中第二空的錯答是學生失分的主要原因,而錯因則是不能理解此處為convince....of.....的V-ing分詞的被動式作主語。
【說明】序數詞后要接V-to do作后置定語,若V-to do先于主句動作則用完成式,若為同步并列關系則用一般式;此處V-to do作后置定語與句子主語實為邏輯上的被動關系;再次,第二句的句式為系表結構,空格明顯處于主語位置,此處若選convincing則缺邏輯賓語,因此用動名詞的被動形式才符合句法。
7.非及物的V-ed與V-ing作后置定語時的比較
【考例】-What do you know about the traffic accident _________ yesterday?
-It was the drunken driver who was ______ for it.
A.occurred; to blame,67%
B.occurring; to blame,23%
C.to be occurred; to be blamed,2%
D.occurring; to be blamed,8%
【解析】本題正答項為B,正答率僅為23%,而錯答率則高達77%。從A項看,67%的學生誤認為此處用V-ed作后置定語,錯答中有10%的學生既不懂occur的詞性、語法功能亦不知to blame for sth短語的常規用法。
【說明】本題的occurring yesterday是由定語從句which occurred yesterday轉化而來的,是V-ing短語作后置定語;而occur是不及物動詞,此處僅表完成不表被動,選occurred的同學則不知其與被修飾短語the traffic accident實為邏輯上的主謂關系,而to blame for則永遠以主動形式表示被動含義。
8.V-ing完成式及一般被動與V-ed分詞用法比較
【考例】_______ in the leg made it impossible for me to walk as fast as usual.
A.Being injured, 40% B.To be injured, 0%
C.Having injured, 33% D.Injured, 27%
【解析】本題A為正答,正答率40%,錯答率60%,選B的同學為零。這說明錯答集中在Having injured,Injured兩項上。
【說明】鑒于句中謂語動詞made缺少主語部分,因此判斷此處應為動名詞作主語。過去分詞Injured不能作主語,動詞injure本身為及物動詞,須接邏輯賓語意思才完整,因此C不合適;而V-to do隱含目的、未來及尚未完成之事與本句語境不符,V-ing則隱含抽象、經驗、已發生事情,故A為正答。