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如: The news that we are having a holiday tomorrow is not true. Thomas asked the reason why there was a delay. ★ advice, demand, order, request, requirement, suggestion 等后跟同位語從句 時(shí), 謂語 部分要用“ should +動(dòng)詞原形” 結(jié)構(gòu) , should 可以省略。如: Jack’s suggestion is that we (should) attend the meeting. ★ whether 可以引導(dǎo)表語從句, if 一般不可以。 【歸納】 一、主語從句 ★用作主語的從句叫做主語從句。 如: That we shall be late is certain. What she did is not yet known. How the prisoner escaped is a plete mystery. ★ 有時(shí)可用形式主語 it 代替主語從句,即將 it 放在句首,將主語從句放在句末 , 以免句子頭重腳輕。如: The question is whether to go to London or Paris. ★ as if 也可引導(dǎo)表語從句。如: The suggestion that we (should) change the date came from Peter. 【即學(xué)即練】 I. 用正確的連(接)詞填空。如: They are advising that children (should) be kept out of the sun altogether. 四、同位語從句 ★用作同位語的從句叫做 同位語從句 。如: I feel sorry for her, but the fact remains that she lied to us. ★在 advice, suggestion, order 等表示建議、勸告、命令等含義的名詞后的表 語從句中,謂語