Section Ⅳ　Grammar & Writing

　　情态动词的用法

　　阅读下列句子，体会黑体部分的用法

　　1．In some countries，for example，you have to arrive on time at a party；in other countries，you don't need to.

　　2．Some hosts expect flowers or a small gift，but in other places，you can take things，but you needn't if you don't want to.

　　3．-Did the immigration people ask to see your visa?

　　-No.I didn't need to get a visa.

　　4．My American friend Tom spoke good Chinese，so I didn't need to translate the speech for him.

　　5．I was the first to go there.I needn't have gone there so early.

　　6．I offered to help him with the housework and then he told me he had finished.I needn't have done that.

　　一、need的基本用法

　　1．用作实义动词，后可接名词、代词、不定式和动名词，有时态、人称和数的变化。

　　Mark needs to learn Chinese since his company is opening a branch in Beijing.

　　马克需要学习汉语，因为他的公司要在北京开一个分公司。

　　The doctor said he needed an operation.

　　医生说他需要手术。

　　[名师点津]　

当主语是表示"物"的名词时，则作实义动词的need后接动名词的主动形