1.賓語(yǔ)從句在句中作及物動(dòng)詞或介詞的賓語(yǔ),從句放在主句之后,前后不用逗號(hào)分開(kāi).
2.引導(dǎo)賓語(yǔ)從句的詞有：
連詞that(在口語(yǔ)中that常可省略),if,whether,如：
He knows that Jim will work hard.
連接代詞who,whom,which等,如：
Do you know who (whom) they are waiting for?
連接副詞when,where,how,why等,如：Could you tell me how we can get to the station?
3.whether和if都有“是否”的意思,一般情況下兩者可以換用,但在介詞之后,
不定式之前,與or not連用,在句首或在引導(dǎo)表語(yǔ)從句,同位語(yǔ)從句時(shí),只能用whether,如：I want to know if/whether the news is true.He doesn't know whether to stay or not?
4.賓語(yǔ)從句要用陳述句語(yǔ)序.
5.賓語(yǔ)從句一定要注意時(shí)態(tài)呼應(yīng),即：當(dāng)主句謂語(yǔ)動(dòng)詞是過(guò)去式時(shí),從句中謂語(yǔ)動(dòng)
詞也要用過(guò)去范疇的時(shí)態(tài),但若從句陳述的是真理或客觀規(guī)律,其謂語(yǔ)的時(shí)態(tài)仍用一般現(xiàn)在時(shí),如：
He asked who could answer the question.
My father told me that the earth goes around the sun.
6.一個(gè)賓語(yǔ)從句只能用一個(gè)連詞.
7.當(dāng)主句謂語(yǔ)動(dòng)詞是think,believe等動(dòng)詞時(shí),賓語(yǔ)從句的否定意義要放到主句中.另外,當(dāng)主句主語(yǔ)為第一人稱(chēng)時(shí),后面若接附加疑問(wèn)句,那么附加疑問(wèn)句的主語(yǔ)、謂語(yǔ)應(yīng)與從句中的主謂語(yǔ)保持一致.如：
I don't think he looks like his father,does he?
8.直接引語(yǔ)和間接引語(yǔ)也是賓語(yǔ)從句,直接引語(yǔ)是引述別人的原話,放在引號(hào)內(nèi),
不用連詞聯(lián)接；間接引語(yǔ)是用自己的話轉(zhuǎn)述別人的話,通常用連接詞與主句聯(lián)接.
(1)陳述句變?yōu)橐詔hat引導(dǎo)的賓語(yǔ)從句,如：
He said,“I'm happy.”[FY()[FY]]He said that he was happy.
(2)一般疑問(wèn)句變?yōu)閕f(whether)引導(dǎo)的賓語(yǔ)從句,如：
He asked me,“Does his father know Mr Green?”
---He asked me if his father knew Mr Green.
(3)特殊疑問(wèn)句變?yōu)橛蓋ho,what,where,how等疑問(wèn)詞(連接代詞或連接副詞)引導(dǎo)的賓語(yǔ)從句,如：
He asked me,“Where is Mr Wang?”
---He asked me where Mr Wang was.
注意上述例句中連詞、時(shí)態(tài)、語(yǔ)序等變化.