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此題是考查非謂語動詞嗎

有這樣一道題：

__________ many times，but the boys still couldn’t understand it.

A. Having told              B. Though he had been told    C. He was told              D. Having been told

現(xiàn)分析如下：

此題應(yīng)選C。容易誤選A，D，考生從四個選項中初看一眼便斷定此題是考查非謂語動詞，這剛好落入了命題者的設(shè)置的陷阱。做好此題的關(guān)鍵點在于注意到句中的并列連詞but，因為它的存在就表明這是一個并列句，所以前面應(yīng)是一個完整的句子而不能是一個非謂語動詞。

1. ________ask the teacher if you have any questions.

A. Doing                      B. Do                         C. To do                       D. Done

2. ________ hard and you’ll pass the college entrance examinations.

A. Study                      B. Studying                 C. To study                   D. Studied

3. _________ down the radio —— the baby’s asleep in the next room.

A. Turning                   B. Turn                       C. Turned                     D. To turn

4. On Saturday afternoon，Mrs Green went to the market，________ some fruit and visited her cousin.

A. bought                     B. buying                    C. to buy                      D. buy

5. She set out soon after dark _________ home an hour later.

A. arriving                    B. to arrive                  C. having arrived           D. and arrived

答案：1. B 2. A 3. B 4. A 5. D