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關(guān)閉窗口 2. 根據(jù)英語的表達習慣來確定
非謂語動詞的主動與被動除根據(jù)句意來確定外，有時還要遵循英語的表達習慣，尤其是在有些表達中，盡管意義上是被動的，但形式上卻要用主動式來表達。如：
This machine is very easy ______. Anybody can learn to use it in a few minutes. (遼寧卷)
A. operating B. to be operating C. operated D. to operate
解析：答案為D。sth is easy to do 這類句式中，盡管句子主語與 easy 后的不定式具有動賓關(guān)系，該不定式習慣上卻要用主動形式表示被動意義，而不能直接使用被動形式。又如：The shower is easy to install — it needs only to be connected up to the hot and cold water supply. 淋浴器很容易安裝——只要接上冷熱水就行。
3. 注意用過去分詞表被動
例1 When ______ for his views about his teaching job, Philip said he found it very interesting and rewarding. (安徽卷)
A. asking B. asked C. having asked D. to be asked
解析：答案為B。由于句子主語與動詞 ask 之間為被動關(guān)系，故可排除 A 和 C；再根據(jù)句意和動作的先后關(guān)系，最佳答案應(yīng)為 B。又如：When asked for your views about your current job, on no account must you be negative about it. 被問及你對自己目前工作的看法時，無論如何不要流露出消極情緒。
例2 After completing and signing it, please return the form to us in the envelope ______. (山東卷)
A. providing B. provided C. having provided D. provide
解析：答案為B。由于 the envelop 與動詞 provide 之間為被動關(guān)系，故只能選 B，其余三項均不表示被動關(guān)系。又如：Members shall enter the names of their guests in the book provided. 會員必須把所邀客人的名字登記在提供的本子上。
四、識別假非謂語動詞考點的技巧
有些考題盡管選項用了非謂語動詞作干擾，但命題者其實不是考查非謂語動詞。這其中真正的考點通常有兩種可能：一是考查祈使句，二是考查某些特殊句式。如：
例1 ______ at the door before you enter my room, please. (北京卷)
A. Knock B. Knocking C. Knocked D. To knock
解析：答案為A。此題從四個選項來看，好像是在考查非謂語動詞，但實際上，本題考查的是祈使句的用法，即該句的主句是一個祈使句，句子后半部分是一個由 before 引導的時間狀語從句。又如：Before you send the letter, check with Bill to see if the address is right. 你在寄信之前找比爾核對一下，看地址對不對。
例2 I think Tom, as the head of a big department, should either study regularly or ______ his job. (浙江卷)
A. quits B. to quit C. quitting D. quit
解析：答案為D。根據(jù) either…or…的搭配特點，空格處應(yīng)填一個與study 形式相同的動詞，也就是用動詞原形，故答案為 D。又如：You can either come by bus or take a taxi. 你可乘公共汽車來或是坐的士來。
（編輯 陳根花）
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