Question

12．If she had been aware that the mushroom were poisonous，shewouldn't have picked them for dinner．（pick）
要是知道這些蘑菇有毒，她不會(huì)采來做晚餐了．

Answer 1

分析 句意：如果她早知道蘑菇有毒，她就不會(huì)采來當(dāng)晚餐了．

解答 答案：would not/wouldn't have picked．根據(jù)題干中if從句中謂語動(dòng)詞的形式had done可知是對(duì)過去情況的假設(shè)，所以主句中的謂語動(dòng)詞相對(duì)的要用would have done來表示對(duì)過去情況的假設(shè)，從而使得主從句保持一致．結(jié)合句意，因"蘑菇有毒"所以"不會(huì)采"，符合邏輯，所以要用否定式would not/wouldn't have done．

點(diǎn)評(píng) 此題考查if條件從句的虛擬情況．if條件從句的虛擬情況有三種形式：①如對(duì)現(xiàn)在情況假設(shè)：if條件從句的謂語動(dòng)詞形式為過去式（be為were），主句的謂語動(dòng)詞形式為would/could/might/should do ②如對(duì)過去情況假設(shè)：if條件從句的謂語動(dòng)詞形式為 had done，主句的謂語動(dòng)詞形式為 would/could/might/should have done ③如對(duì)將來情況假設(shè)：if條件從句的謂語動(dòng)詞形式為were/did；should do；were to do，主句的謂語動(dòng)詞形式為would/could/might/should do．解此類題的關(guān)鍵是要判斷對(duì)什么時(shí)間的假設(shè)，再而確定正確的謂語動(dòng)詞形式．