3） 雙賓語（直接賓語和間接賓語）結構和復合賓語（賓語 + 賓語補足語）結構：比較下面兩個句子：

　　My mother made me a cake.（母親給我做了塊蛋糕。）

　　My father made me a doctor. （父親把我培養成一名醫生。）

　　第*句是雙賓語結構，即 My mother made a cake for me.

　　第二句是復合賓語結構，其句能為：My father made me （to） be a doctor （I am a doctor）. 說明復合賓語結構中，賓語和賓語補足語之間有"主謂關系".

　　4） 情態動詞：must, should, ought to, can, may, need, used to 等動詞稱為情態動詞，有三大特征：A. 不受主語人稱和數的影響，如：He may go now. / May I go now? 句中may的形式不變；B. 否定時在后面加not, 如：You ought not to have cheated her. C. 與另一動詞連用，中間不用 + " to ", 如上舉例。

　　請根據上述原則，（從語法角度）說出以下那種表達方式是對的：

　　A. She needs to see a doctor.

　　B. She doesn't need to see a doctor.

　　C. Does she need to see a doctor?

　　D. She needs not see a doctor.

　　E. She needn't see a doctor.

　　F. She doesn't need see a doctor.

　　G. She needs see a doctor.

　　從語法角度看，A、B、C、E是對的。

　　5）助動詞：幫助實意動詞構成某種結構的詞，如: He did come yesterday; I saw him in the office.（他昨天確實來了；我在辦公室見到他的。—— 表示強調）