賓語(yǔ)從句的語(yǔ)序：在復(fù)合句中，賓語(yǔ)從句部分要用陳述語(yǔ)序。

　　(1) 陳述句作由that引導(dǎo)的賓語(yǔ)從句時(shí)，語(yǔ)序不用調(diào)整。

　　(2) 一般疑問(wèn)句作賓語(yǔ)從句時(shí)，其結(jié)構(gòu)為whether / if +陳述句。原一般疑問(wèn)句的主語(yǔ)前如果是助動(dòng)詞do / does / did，應(yīng)去掉，謂語(yǔ)動(dòng)詞應(yīng)改為其相應(yīng)的形式;原一般疑問(wèn)句的主語(yǔ)前如果是don’t / doesn’t / didn’t，則直接將其放到主語(yǔ)之后;原一般疑問(wèn)句的主語(yǔ)前如果是be 動(dòng)詞、情態(tài)動(dòng)詞或其他助動(dòng)詞，則應(yīng)將其放到主語(yǔ)之后。如：

　　Does he like apples? I don’t know. ----- I don’t know whether he likes apples.

　　He asks: Is Tom a diver? ----- He asks whether Tom is a driver.

　　(3) 特殊疑問(wèn)句作賓語(yǔ)從句時(shí)， 如果疑問(wèn)詞作主語(yǔ)或主語(yǔ)的定語(yǔ)，其語(yǔ)序不用變化;如果疑問(wèn)詞充當(dāng)其他句子成分，則賓語(yǔ)從句的結(jié)構(gòu)為連接代詞 / 連接副詞+陳述句。如：

　　Who can answer the question? I want to know. ----- I want to know who can answer the question.

　　Whose book is on the desk? We all know. ----- We all know whose book is on the desk.

　　When will they arrive? Please tell us. ----- Please tell us when they will arrive.

　　賓語(yǔ)從句的引導(dǎo)詞

　　(1) 陳述句作賓語(yǔ)從句引導(dǎo)詞用that。that在從句中不充當(dāng)任何句子成分，無(wú)實(shí)際意思，在口語(yǔ)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(wèn)句作賓語(yǔ)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(wèn)句作賓語(yǔ)從句引導(dǎo)詞用原來(lái)的疑問(wèn)詞，只不過(guò)在賓語(yǔ)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.

　　Could you tell me where the post office is? Please ask the teacher how we can get there.