【文章內(nèi)容簡介】
1) 陳述句作賓語從句引導(dǎo)詞用that。that在從句中不充當(dāng)任何句子成分,無實際意思,在口語或非正式文體中常省略。如: He said (that) it was cold in Moscow. Mother knows (that) Jim will work hard. (2) 一般疑問句作賓語從句引導(dǎo)詞用whether或if。whether或if表示“是否、是不是”的意思,不能省略。如: I want to know if / whether the answer is right. Lucy asked if / whether they had a cheaper shirt. (3) 特殊疑問句作賓語從句引導(dǎo)詞用原來的疑問詞,只不過在賓語從句中稱作連接代詞或連接副詞。連接代詞或連接副詞在從句中充當(dāng)一定的句子成分,有一定的意思,不能省略。如: Please tell him which class you are in. He asked me whom I was waiting for.