初三英语知识点
2. be 动词的四种用法:
(1) be + 形容词: I am tall.
(2) be + 被动语态: The window is closed.
(3) be + 动词不定式:
,从句:过去进行时。
while 用于
<1> 主句:过去进行时,从句:过去进行时。
(12) 主句用一般将来时,从句用一般现在时, 简称主将从现的句子有:if, as soon as, when, not…until
(13)yet,
<1> 用于现在完成时,在否定句、疑问句中把already 改成yet.
<2> “ 然而” , : The old teacher is very tired, yet she still works very hard. = Although the old teacher is very tired, she still works very hard.
(14) if
<1> “ 如果’’, 用于条件状语从句。主将从现。
<2> “是否”, 用于宾语从句
whether <1> “是否”,用于宾语从句。和if 的区别在于whether 与or not 连用。表示:是。。。还是不是。而if 不与or not 连用。
(15) as soon as “一。。。就”。
<1> 主将从现
<2>主句:一般过去时,从句:一般过去时。
(16) as well as
<1> 比较级中表示“和。。。一样好”。
<2> 主语A+ as well as + 主语B,动词由A决定单复数。
(17) after :“在。。。后。”用于过去完成时或过去时。(做句意相同时要想到until)
(18) until, not (won’t/ didn’t ) 。。。until :
“直到。。。才。”用于主将从现,或过去式。
(19) since=now that,“既然。”
it is +时间+since…( 过去式),
it was + 时间+ since ( 过去完成时)
(20) so…that. “如此... 以致于”
从句中有can, can’t, could, couldn’t.
so that,“以便。” 可以和too..to, enough to, 互换。
(21) as :“当... 时”=when, “由于” , “像”,跟like 的区别是:like +单词词组。
as + 动词词组。
(22) as…as, “和。。。一样”。not as …as “和。。。不一样。”= less…than
(23) in order to, “为了”, 后+动词原形。
in order that “为了”,跟句子。
(24) too…to, “太。。。以致于不能” 。enough to “足够。。。能够。。。”
(25) unless=if not “除非”
would rather do sth. “宁愿做某事”
had better do sth. “最好做某事”
would like to do sth. “想要做某事”
一、副词:
-ly: quick, slow, fluent, quiet, careful, careless, soft, wonderful, cheerful, excited, sad, clear, fortunate, active, serious, wide, bad, hurried, rude, impatient, kind, silent, polite
+ ily : heavy, lucky, noisy, easy, merry, greedy, happy, angry, busy, hungry, unlucky, tasty
+ly : true, terrible, possible, probable
:loud, early, fast, hard, straight, deep, late, high
划线提问的词:
1. how soon: 对in +一段时间的提问。
2. how long: 对for +一段时间的提问。
3. how far : 对距离的提问。(be far from)
4. how fast : 对速度的提问。
5. how old: 对年龄的提问。
6.which: 对定语的提问或问哪一个?
7.
初三英语知识点 来自淘豆网www.taodocs.com转载请标明出处.