need, want, require后的非謂語動詞

當這三個動詞表示“需要”時，其后接不定式和動名詞均可，且意思基本相同，只是所用語態(tài)不同：接動名詞時要用主動式表示被動含義，而接不定式時則要用被動形式表示被動含義。如：

1. The machine wants repairing.

= The machine wants to be repaired.

這機器需要修理。

2. These sentences need explaining.

=These sentences need to be explained.

這些句子需要加以解釋。

3. Lentils do not require soaking before cooking.

= Lentils do not require to be soaked before cooking.

小扁豆在烹飪前不必浸泡。