Section_ⅢGrammar- 虚拟语气和状语从句

　　语法图解

　　探究发现

　　①They have recommended that the site be closed and repaired.

　　②They have suggested that the general public be encouraged to help with the problem.

　　③A professor at the Academy has proposed that a fund be established to raise money.

　　④Mary speaks as if she were Chinese.

　　⑤It's high time that we should have/had a rest.

　　⑥As long as you've got a raincoat, you'll be OK.

　　⑦Just stay where you are and don't move.

　　⑧Hero as he is, he has some shortcomings.

　　⑨Whatever happens, you're going to have a marvelous time.

　　⑩The little child eats whatever we give him.

　　[我的发现]

　　(1)以上句中，①～⑤句谓语动词均使用了虚拟语气。①、②、③从句中用should＋动词原形，should可省略。

　　(2)⑥～⑧句中黑体部分分别引导条件、地点、让步状语从句。

　　(3)由⑧句可知，as引导让步状语从句时，句子要采用倒装语序。

　　(4)⑨句中黑体部分引导让步状语从句，⑩句中引导名词性从句。

　　一、虚拟语气

虚拟语气用于宾语从句、主语从句、表语从句或同位语从句中，常可表示要求、建议、命令、提议、意愿等，其虚拟语气往往是由"(should＋)动词原形"构成。