思馬得英語100個句子學英語語法（78）：主語從句

　　<例句>

　　It's certain that prices will go up.

　　物價肯定要上漲的。

　　<語法分析>

　　主語從句可以由that引導，此外還可由連接代詞或連接副詞引導，關(guān)系代詞what或whatever也可引導主語從句。由that引導的主語從句是用的最多的一種主語從句，有時為了強調(diào)，可以把從句放在句首，而絕大部分主語從句則借助先行主語放到句子后部去。

　　<觸類旁通>

　　(1)That she hasn't phoned is odd.

　　她沒有來電話很奇怪。

　　語法分析：that引導的主語從句。

　　(2)That he was chosen made a tremendous stir in his village.

　　他被選中在他村子里引起很大轟動。

　　語法分析：有時為了強調(diào)或謂語較長時，可以把從句放在句首。

　　(3)It is natural that they should have different views.

　　他們有不同觀點是很自然的。

　　語法分析：it+be+形容詞或名詞+that從句。

　　(4)It happened that he wasn't in that day.

　　恰巧他那天不在。

　　語法分析：it+動詞+that從句。

　　(5)It's doubtful whether we'll be able to come.

　　我們是否能來還是個疑問。

　　語法分析：連接代詞或連接副詞可引導主語從句。

　　(6)What will be,will be.

　　該發(fā)生的事，總會發(fā)生。

　　語法分析：關(guān)系代詞型what也可引導主語從句。

　　<鞏固練習>

　　(1)______ he is still alive is a consolation.

　　(2)It's strange ______ she knows nothing about it.

　　(3)It may be ______ you'll prove yourself the most suitable.

　　(4)______ is to be sent there hasn't been decided.

　　(5)It was clear enough ______ she meant.

　　(6)______ is over is over.

　　(7)______ he says goes.

　　(8)______ she saw made her tremble.

　　<參考答案>

　　(1)That (2)that (3)that (4)What (5)what (6)What (7)Whatever (8)What