连词 and or but yet for so not only... but also... neither...nor... either...or... as well as before 中文 和，并且 1.或者 2.否则 但是 然而，可是 因为 所以 不仅…而且… 既不……也不…… 或者……或者…… 也，而且 在……之前; …还没来得及…就…; 过多久…才… 在……之后 常见考点 1.no A and no B 2.no A or B 3.both A and B谓语常用复数，除非看做整体 1.或者：主谓一致（就近） 2.否则：祈使句=if you (don’t) do…, you will (not)… Eg: Work hard, or you’ll fall behind. If you don’t work hard, you’ll fall behind. 不和though、although连用 可以和though、although连用 1.有证据推测 2.不放句首，前有逗号 不和because连用 主谓一致：就近 主谓一致：就近 主谓一致：就近 1.主谓一致：就远 2.不放句首 1.过完 2. 时态一致 3.主将从现 *I’ll be back before you know it. *It will be a long time before we meet again. 1.过完 2.时态一致 3.主将从现 1.当…的时候： A.主将从现(时间状语从句)：I will tell you when I come back. B.=while：When he was watching TV, I was singing. C. 持续动作插入一个瞬间动作：When we were talking, the teacher came in. 2. 什么时候：(宾从) Can you tell me when you will be back? 1.当：后接延续性动词（ing、be+ adj） 2.然而：对比 1. 大部分时候互换 2. until可以放句首，till不能放句首 3. 在否定句：not…until 4. until前跟延续性动词：I waited until the rain stopped. 1.自从：现完+since+一般过去时 2.显而易见的原因，比because弱，比as、for强 after when 1.当……的时候 2.什么时候 1.当； 2.然而 直到 1.自从 2.既然 while until/till since as 1.当……的时候 2. 众所周知的原因 3. 正如，按。。。方式 *句型：adj/adv+主+谓，+句子。表虽然。。。 原因 “一……就” 1.如果 2.是否 “除非，如果不” because as soon as if unless as/so long as 只要 although/though 虽然、尽管 even if/even though as if/as though so that/in order that however 即使 好像 为了，表目的 1.可是 2.无论如何 1. 当…的时候：可用于两个动作都表示发展变化 如：As children get older, they become more and more interested in things around them. 2. 原因：as we all know; as is known to all 3. 正如：Do as I told you./When in Rome, do as the Romans do. * Old as he is, he runs 10 km every day. Slowly as he talks, I still cannot follow him. 回答why，不和so连用，因果关系明显 1.如果：条件状语从句，主将从现 If you go, I’ll go. 2.是否：宾语从句：I wonder if you’ll come tomorrow. 1.unless=if…not 2.unless后接肯定句 如: You will not catch the bus unless you get up early. 1.不和but连用，可以和yet、still连用 2. though可以放句尾，如： It was a short party. I had a good time, though. 后接完整句子,有时候可以改写成in order to do sth 1.可是：后加逗号。 2. 无论如何：后加adj/adv 如: However hard I tried, I still couldn’t win. （二）地点状语从句 常用连词：where 其它引导词：anywhere, everywhere Air will be heavily polluted where there are factories. Everywhere she stays, she keep a photo of her parents. 区别where引导的状语从句和定语从句 (定语从句有先行词） Let him stay in the room where he used to live. She keep doing sports anywhere she stays. 本文来源：https://www.wddqw.com/doc/e708b80fbed126fff705cc1755270722192e59e5.html