2016屆高考英語第一輪語法大全復習教案及配套練習4
he wrote the name down for fear that（lest） he should forget it. 他寫下了這個名字以免以后忘記。
better take more clothes in case the weather is cold. 最好多穿點衣服，以防天發冷。
19.5 結果狀語從句
結果狀語從句常由so…that 或 such…that引導。so…that與such…that之間可以轉換。例如：
the boy is so young that he can\'t go to school. 這男孩年齡太小，不能上學。
he is such a young boy that he can\'t go to school
19.6 條件狀語從句
連接詞主要有 if, unless, as/so long as, on condition that 等。if 引導的條件句有真實條件句和非真實條件句兩種。非真實條件句已在虛擬語氣中闡述。
unless = if not. 例如：
let\'s go out for a walk unless you are too tired. 如果不太累，我們去散散步。
if you are not too tied, let\'s go out for a walk.
典型例題
you will be late ___ you leave immediately.
a. unless b. until c. if d. or
答案a。句意：除非你立即走，否則你就回遲到的。可轉化為 if you dong leave immediately, you will be late。b、d句意不對，or表轉折，句子如為 you leave immediately or you will be late.
19.7 讓步狀語從句
1）though, although引導的讓步狀語從句，后面的從句不能有but，但是 though 和yet可連用。例如：
although it\'s raining, they are still working in the field. 雖然在下雨，但他們仍在地里干活。
he is very old, but he still works very hard. 雖然他很老了，但仍然努力地工作。
though the sore be healed, yet a scar may remain. 傷口雖愈合，但傷疤留下了。（諺語）
2） as, though 引導的讓步從句必須表語或狀語提前（形容詞、副詞、分詞、實義動詞提前）。例如：
child as /though he was, he knew what was the right thing to do.
雖然是個小孩，該做什么不做什么，他全知道。
3） ever if, even though 即使。例如：
we\'ll make a trip even though the weather is bad. 即使天氣不好，我們也要去遠足。
4） whether…or… 不管……都。例如：
whether you believe it or not, it is true. 信不信由你，這確實是真的。
5） \"no matter +疑問詞\" 或\"疑問詞+后綴ever\" 。例如：
no matter what happened, he would not mind. =whatever happened, he would not mind. 不管發生什么，他不在意。
替換：no matter what = whatever
no matter who = whoever
no matter when = whenever
no matter where = wherever
no matter which = whichever
no matter how = however
注意：no matter 不能引導主語從句和賓語從句。
（錯）no matter what you say is of no use now.
（對）whatever you say is of no use now. 你現在說什么也沒用了。（whatever you say是主語從句）
（錯）prisoners have to eat no matter what they\'re given,
（對）prisoners have to eat whatever they\'re given.囚犯們只能給什么吃什么。