Unit 8 Career Preparation

【鏈接3】
說明：
虛擬語氣是語法中比較復雜的內容，教師不僅要給學生明確的語法知識，還要引導學生正確分析不同語境，不同語氣。因此建議教師在精講語法規則的同時，能創設不同的語言活動，讓學生在語境中理解虛擬語氣和真實語氣陳述的區別和轉換，幫助學生牢固掌握，并能靈活運用虛擬語氣的知識點。

操作步驟和方法:
i. 教師通過教材132頁練習a，學生通過觀察回憶，歸納出虛擬語氣的基本知識點。
 if從句 主句 例句
與現在事實相反 動詞過去式did
be用were would/could/might/should +動詞原形 if i had money on me, i would lend you some
與過去事實相反 had +過去分詞 would/could/might/should + have done if the doctor had come last night, the b0y would have been saved.
與將來事實相反 should+動詞原形
were to+動詞原形
did/were would/could/might/should +動詞原形 if it should rain tomorrow, we would stay at home
注意：
在條件句中如果出現were, had, should可置于句首，省去if，將主語與這些詞倒裝，例如：
* had the doctor come last night, the boy would have saved.
* were i to go to the moon one day, i would see it with my own eyes.
* should it rain tomorrow, we would stay at home
* i can’t remember how much it cost.
* what they were talking about was very professional.
虛擬語氣在一些特殊結構中的運用：
1、在表示命令、建議要求、驚嘆時的名詞性從句中需用虛擬語氣，其結構為“should + 動詞原形”, should可省。這類動詞有suggest, insist, demand, propose, require, ask, advise, order, request…..
* mother insisted that john go to bed at 9 o’clock.
* we suggested that the meeting should not be held.
* it was required that the crops should be harvested at once.
* the suggestion that he be invited was rejected.
*that is their demand that their wages be increased.
注意：
1）在這種句子中絕不出現“would”“must”“could”等。
2）suggest表示“表明，顯示”時，insist表示“堅持認為是”，“堅持某一事實”時，后接的賓語從句不用虛擬語氣。

2、wish后的賓語從句：
與現在愿望不一致 主語＋過去時；
與過去愿望不一致 主語＋had＋過去分詞；
與未來愿望不一致 主語＋would（could）＋ 動詞原形
* i wish i were as strong as you.
* i wish i had visited the white house when i was in the states.
* i wish i would meet you tomorrow at the party

3、it is important/ necessary/ strange…+ that + should + 動詞原形,    should可省
* it is necessary that the doctor should be sent there at once.

4、it’s time句型：當it’s time后用that從句時應該為：
主語＋should＋原形 或 主語＋過去時，例如：
* it’s time that you went to school. 或
* it’s time that you should go to school.

5、if only引起的感嘆句相當于“how i wish＋賓語從句”
* if only he could come!  他要能來就好了。