To succeed in a scientific experiment _____ . A．carefulness is needB．carefulnes

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To succeed in a scientific experiment _____ .

A．carefulness is need	B．carefulness is one needs
C．one needs to be careful	D．one need being careful

答案

解析

要想在科研实验中取得成功……, 显然句子缺少逻辑主语,所以A,B两项排除. one是第三人称单数,所以C,D中显然是C正确. 另外: need后面接动名词主动形式表被动意义,与need后跟不定式被动意义相同.如: The bicycle needs repairing. =" The" bicycle needs to be repaired.

举一反三

New ideas sometimes have to wait for years before _____ .

A．fully accepted	B．having fully accepted
C．fully accepting	D．being fully accepted

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Before leaving home, make sure to turn off the electricity, lock the door, ______ the windows open.

A．and not to leave

B．instead of leaving

C．rather than leave

D．and not leave

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You will see this product _____wherever you go.

A．to be advertised

B．advertised

C．advertise

D．advertising

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“Hope for the best and prepare for the worst.” is a proverb, ______ life is beautiful and full of
frustrations as well

A．means

B．to mean

C．meaning

D．meant

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_____all kinds of knowledge ,he was admitted to a key university.

A．Equipped with

B．Having equipped for

C．Armed for

D．Having armed with

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