2022屆高考英語情態動詞和虛擬語氣
1.省略連詞if。在書面語中，如果虛擬條件從句中有were，had 或 should，可以把if省略，把這幾個詞放到主語之前，構成主謂倒裝。
should he come (if he should come), tell him to ring me up. 他要是來了，讓他給我打個電話。
were i you (if i were you), i would not do it. 我要是你，就不做這事。
2.suggest, order, propose, request, require, demand, advise, insist+ 賓語從句(should )do
he suggested that we (should) save money for the future.
the undergraduate insisted that he (should) go to work in the south.
注意：當suggest表示暗示，insist表示堅持觀點,事實時，后接的賓語從句應當用真實語氣。
his silence suggested that he agreed with my decision.
he insists that doing morning exercises does good to people’s health.
3.it is suggested/advised/ordered/requested/required…+ that從句(should) do
it is proposed that more students should go to university.
4.my advice/suggestion/request/requirement/order/proposal…+ is +表語從句(should)do
my advice is that you should practise speaking english as often as possible.
the order from the commander was that the troops should set off for the front immediately.
5.his suggestion/advice/request/requirement…+ 同位語從句(should )do+ is..
the request that they should get more is reasonable.
6.it is natural/necessary/strange +that從句 (should) do表驚奇、懷疑、惋惜、不滿、理應如此等。
it’s strange that he should have missed the train. (表竟然)
it is important that we should learn from others.(表理應如此)
it is a pity that he should not go with us.(表驚訝、不滿)
7.wish + that clause (did/were 與現在相反)
wish + that clause (would/could/might + do與將來相反)
wish + that clause ( had done 與過去相反)
i wish i could go with them tomorrow.
i wish i had never met him.
8.it is (high/about) time + 從句(did或should do )
it is (high/about) time we went home.
9.would rather + clause (did 與現在或將來相反);(had done 與過去相反)
i would rather you came tomorrow.
i would rather you hadn’t told her the news.
10.省去條件從句或主句：表示虛擬語氣的主句或從句有時可以省略，但其含義仍可以推知。
①省去條件從句
you could have washed your clothes yourself. 你本可以自已洗衣服的。
省去了"if you had wanted to")(事實是:你自己沒洗衣服，因為你不想洗。)
②省去主句(常用以表示愿望) if only + clause ( did/were與現在相反)/ (would/could/might + do與將來相反) /( had done 與過去相反) “要是…….就好了“
if my grandmother were with me! 如果我的祖母與我在一起多好啊!(事實是:祖母已不在世。)