辽宁省辽阳一中2021届高三英语二轮复习-语法-状语从句讲解及练习

状语从句 状语：在句中用来修饰动词、形容词、副词或整个句子的成分被称为状语。它可以用来表示时问、地点 、原 因、目的 、结果 、条件 、方式 、比较 、让步等。 状语从句：用作状语的句子被称为状语从句。 adj作状语：1.He arrived home, hungry and tired. 2. The weather is freezing cold. 3. He may be late. Worse still, he may not come at all.  主要考点： 1. 主句与从句的时态呼应问题； 2. 连接词的选择； 3. 状语从句与非谓语动词之间的替换； 4. 根据从句与主句的逻辑关系选用从属连词。 一、时间状语从句 1. when ①当...时 The film had been on when we arrived. ②这时突然 be about to do sth when ... be doing sth when ... be on the point of doing sth when ... had just done sth. when ... The telephone was ringing when I got home. ③既然 How can I explain it to you when you won’t listen. 2. while ①当...时 ②强调两者对比，译为“然而” ③放在句首，译为“虽然，尽管” 3. as ①“随着” As time went by... As I get older, I get more optimistic. ②“一边…一边…” He hurried home, looking behind as he went. ③ “当…” 强调动作同时发生，无先后 As he was going out, it began to rain. 4. before ①在…之前 Before they got to the bus stop, the bus had gone. ②在It +be+时间段+before句型中 肯定：“ （多久之后）才… ” It will be 5 years before he returns to his motherland. 否定： “（过不了多久）就…” It won’t be long before we meet again. ③“还没来得及，就…” He died before he wrote a will. ④“趁...还没...” Please write it down before you forget it. 5. till / until / not...until (until或till表示“某动作一直延续到某时间点才停止”，此时主句谓语动词是延续性动词，主、从句都为肯定式。这两个词可以换用，但till不可以置于句首，而until可以。) I didn’t have any idea of it until you told me. 强调句：It was not until you told me that I had any idea of it. 倒装句：Not until you told me did I have any idea of it. 6. since ①since + 时间点或一般过去时/ since then / ever since 与现在完成时连用 ②It is/has been + 时间段＋ since …did… It is three years since he lived here. It is two years since he smoked . 7. 一...就...（2433） 第 1 页 共 3 页 on as soon as the moment the minute the second the ins