【正文】
Unit 4 我們知道在句子中起名詞作用的句子叫名詞性從句。名詞性從句的功能相當(dāng)于名詞詞組,它在復(fù)合句中能擔(dān)任主語(yǔ) , 賓語(yǔ),表語(yǔ),同位語(yǔ),介詞賓語(yǔ)等,因此根據(jù)它在句中不同的語(yǔ)法功能,名詞從句又可分別稱(chēng)為主語(yǔ)從句,賓語(yǔ)從句,表語(yǔ)從句和同位語(yǔ)從句。 Read the two sentences firstly. What it was to bee was uncertain until between and billion years ago… …it was not clear whether the shape would last or not. 通過(guò)觀察,我們發(fā)現(xiàn)兩句當(dāng)中劃線部分的句子都在復(fù)合句中起名詞的作用,因此稱(chēng)之為主語(yǔ)從句。 主語(yǔ)從句在復(fù)合句中作句子的主語(yǔ)。引導(dǎo)主語(yǔ)從句的詞有 從屬連詞 that, whether, if;連接代詞 who, whoever, whom, what, whatever, whose, which; 連接副詞 when, where, how, why等。 觀察下列例句,指出其中所包含的主語(yǔ) 從句及引導(dǎo)詞 : 1. What is needed for a long trip is careful preparation. 該句中主語(yǔ)從句是 __________________ _________,引導(dǎo)詞為 _____。 What is needed for a what long trip 2. That Jay Zhou will e to my city excites everybody. 該句中主語(yǔ)從句是 _________________ ______________,引導(dǎo)詞為 _____。 3. Whether we will travel abroad or not has not been decided. 該句中主語(yǔ)從句是 _________________ __________________,引導(dǎo)詞為 _________。 That Jay Zhou will Whether we will e to my city that travel abroad or not whether 4. Whoever knows the secret mustn’t tell others. 該句中主語(yǔ)從句是 __________________ ______,引導(dǎo)詞為 ________。 5. It remains a puzzle why dinosaurs died out suddenly long time ago. 該句中主語(yǔ)從句是 _________________ ___________________