+ forced / obliged / compelled + to + V：不得不……

例句：

Since the examination is around the corner, I am compelled to give up doing sports.?
既然考試迫在眉睫，我不得不放棄做運(yùn)動(dòng)。

2.a. + as + S + be, S + V + O：雖然……， 但是……

例句：

Rich as our country is, the quality of our life is by no means satisfactory.?
雖然我們的國(guó)家富有，但我們的生活質(zhì)量仍差強(qiáng)人意。

3.It is conceivable / obvious / apparent that + 句子：可想而知/明顯/顯然……

例句：

It is apparent that knowledge plays an important role in our life.
顯然，知識(shí)在我們?nèi)松邪缪葜匾巧?/p>

4.The + 形容詞比較級(jí) + S + V, the + 形容詞比較級(jí) + S + V：……愈……，……愈……

例句：

The harder you work, the more progress you make.
愈努力，愈進(jìn)步。

5.Since + S + 動(dòng)詞過(guò)去式，S + 現(xiàn)在完成式： 自從……，……一直……

例句：

Since he went to senior high school, he has worked very hard.
自從上了高中，他一直很用功。