知识库
先学知识点,再做题检验。当前:连词
01. 名词 (8个)
02. 冠词 (5个)
03. 代词 (4个)
04. 形容词与副词 (6个)
05. 介词 (6个)
06. 连词 (4个)
07. 动词时态 (19个)
08. 被动语态 (7个)
09. 情态动词 (4个)
10. 非谓语动词 (8个)
11. 定语从句 (7个)
12. 名词性从句 (8个)
13. 状语从句 (7个)
14. 虚拟语气 (5个)
15. 特殊句式 (8个)
16. 数词 (6个)
17. 直接引语与间接引语 (4个)
18. 句子成分与结构 (7个)
19. 构词法 (4个)
98. 张俊杰英语全语法体系(综合参考) (31个)
99. 英语全语法之简单原则 (12个)
并列连词
并列连词
重点 难度 2/3
基本连词
* and(和/而且):连接并列成分
* but(但是):转折
* or(或者/否则):Hurry up or you'll be late.
* so(所以):It rained, so I stayed home.
成对连词
* both...and(两者都)→ 复数
* either...or(要么...要么)→ 就近原则
* neither...nor(两者都不)→ 就近原则
* not only...but also(不仅...而且)→ 就近原则
就近原则:谓语与最近的主语一致
并列连词的常用句型
难度 2/3
and 连接并列结构的三种含义
1.表并列:I like apples and oranges.
2.表顺承:She opened the door and walked in.
3.表因果(祈使句+and):Study hard and you'll pass.
or 的三种含义
1.表选择:Tea or coffee?
2.表否则(祈使句+or):Hurry up or you'll be late.
3.否定句中的"和":I don't like tea or coffee.
but 的用法
1.表转折:I like it but it's too expensive.
2.not...but...:不是...而是...
He is not a teacher but a student.
3.用于道歉句:Excuse me, but... / I'm sorry, but...
就近原则总结
either...or / neither...nor / not only...but also
谓语动词与最近的主语保持一致
Not only the students but also the teacher was excited.
从属连词
whether / if / that 引导从句的区别
难度 2/3
whether vs if
相同点:引导宾语从句时,均可表"是否"
I don't know whether/if he will come.
不同点(只能用whether的场合):
1.主语从句句首:Whether he comes matters.
2.介词后:It depends on whether he comes.
3.不定式前:I don't know whether to go.
4.or not直接连用:whether or not(不说if or not)
5.表语从句:The question is whether we can finish.
that vs whether
* that 表示肯定的事实:I know that he is right.
* whether 表示不确定:I don't know whether he is right.
从属连词与并列连词不能同时用
* Because he was sick, he stayed home.(✓)
* Because he was sick, so he stayed home.(✗)
* Although it rained, we went out.(✓)
* Although it rained, but we went out.(✗)
从属连词
重点 难度 2/3
时间
* when(当...时), while(在...期间)
* before, after, until, since
* as soon as(一...就...)
条件
* if(如果), unless(除非=if not)
* as long as(只要)
原因
* because(语气最强), since(既然), as(因为)
结果
* so...that(如此...以至于)
* such...that
让步
* although/though(虽然)
* even if/even though(即使)
主将从现
if/when从句用现在时表将来:
If it rains tomorrow, we will stay home.