必考句型 - 16~20

16….whether…..or not 是否….

17. the same….as 和…一樣
18. 一…就..(1) As soon as S…V , S…V.
(2) On Ving…, S…V.
(3) S had no sooner P.P than S…Vpt
(4) S had hardly P.P. when S..V

*小偷一看到警察, 就很快地跑掉了
*As soon as the thief saw the police, he ran away
...quickly.
*On seeing the police, the thief ran away quickly.
*The thief had no sooner seen the police than he
..ran away quickly.
*The thief had hardly seen the police when he ran
..away quickly.

19….直到…才…
…not….until….
= Not until ….倒裝句
=It is not until...that

*I didn’t go to bed until 12 o’clock last night.
*Not until 12 o’clock last night did I go to bed.
*It was not until 12 o’clock last night that I went to bed.

20. 助動詞
…must V : (現在) 必定..
…may V : (現在) 可能..
…can’t V : (現在) 不可能..

…must have P.P. : (過去) 必定..
…may have P.P. : (過去) 可能..
…can’t have P.P. : (過去) 不可能..
…should have P.P. : (過去)應該….的 (但是沒有…)
…needn’t have P.P. : (過去)不必要….的 (但是卻做了…)