先找關(guān)鍵的動(dòng)詞
定語(yǔ)從句：we often think of the days that we spent together on the island.
主句是完整的,而從句是不完整的,需要先行詞作為從句中的主語(yǔ),賓語(yǔ),狀語(yǔ)成分,從句一般是that which where who等引導(dǎo)詞后面的句子
賓語(yǔ)從句：He said that he would go to beijing.
賓語(yǔ)從句的主句是不完整的.需要引導(dǎo)詞引導(dǎo)的從句充當(dāng)某一成分
that he would go to beijing.是said的賓語(yǔ)
狀語(yǔ)從句：從句在整個(gè)句子中做狀語(yǔ),如：
My mother was cooking when I arrive home.
當(dāng)我到家的時(shí)候,媽媽正在做飯.
when I arrive home.作為一個(gè)時(shí)間狀語(yǔ),修飾cook,因而叫做狀語(yǔ)從句.
主句完整.從句是時(shí)間,原因,地點(diǎn)等狀語(yǔ)