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英语是通向世界的窗口,因为英语是世界上最广泛也最重要的语言之一,从全世界来看,说英语的人数将近二十亿,45个国家的官方语言就是英语,那么初中英语成绩不好该怎么学,下面由掌门学堂小编为大家带来初二上英语知识点总结,一起来看看吧。
初二上英语知识点总
由that引导,由于that没有任何意义,也不充当任何句子成分。因此that在非正式文体中可以省略。这类宾语从句通常表达一种陈述意义。
e.g.He told me (that) he would go to Wuhan.
Tom says (that) he must study hard.
She told me (that) she was a student.
如果由and连接两个并列的宾语从句时,第二个that则不能省略。
e.g.She said she liked English very much and that she didn’t like math at all.
常接that引导的宾语从句的谓语动词有:believe, expect, explain, feel, hear, hope, imagine, prefer, promise, report, say, see, tell, think, understand, warn, wish等。
由连接代词或连接副词who, whose, what, which, when, where, how, why引导,含有“谁、什么、哪个、什么时候、什么地方、怎样、为什么”等特殊疑问意义。
e.g.Do you know who they’re talking about?
Can you tell me what they’re looking for?
I don’t know where she has gone.
I wonder how she can find us.
She didn’t tell me where her hometown was.
由从属连词whether和if引导,含有“是否,能否,对否,有否”等一般疑问意义。
e.g.She asked me if I could help her.
Jim wanted to know whether I had taken his English book.
Please tell me whether you can come or not.
在这类宾语从句中要注意两点:
if引导宾语从句和状语从句的区别
if引导宾语从句时意为“是否”,从句中该用什么时态就应用什么时态。
if引导条件状语从句时意为“假如”,从句中应用一般现在时代替一般将来时。
e.g.She wanted to know if you were a teacher.
I don’t know if the letter is yours.
They’ll go boating if it is fine tomorrow.
I’ll give it to her if she comes next week.
if引导宾语从句时多数情况下可以与whether互换,但如果要突出“究竟是……还是不……”这层意思时,通常用whether,并在后面的加上“or not”,即一般要选择whether构成whether…or not的结构。
e.g.Please find out whether the money is his or not.
Let me know whether you can come or not.
I want to know whether you can help me or not.
leave的用法
“leave+地点”表示“离开某地”。例如:
When did you leave Shanghai?
你什么时候离开上海的?
“leave for+地点”表示“动身去某地”。例如:
Next Friday, Alice is leaving for London.
下周五,爱丽斯要去伦敦了。
“leave+地点+for+地点”表示“离开某地去某地”。
例如:
Why are you leaving Shanghai for Beijing?
你为什么要离开上海去北京?
情态动词should“应该”学会使用
should作为情态动词用?常常表示意外、惊奇、不能理解等?有“竟会”的意思例如::How should I know? 我怎么知道?
Why should you be so late today?
你今天为什么来得这么晚?
should有时表示应当做或发生的事?例如:
We should help each other.我们应当互相帮助。
我们在使用时要注意以下几点
用于表示“应该”或“不应该”的概念。此时常指长辈教导或责备晚辈。
例如:
You should be here with clean hands.
你应该把手洗干净了再来。
以上是由掌门学堂小编为大家分享的初二上英语知识点总结,希望能给大家带来帮助。英语是国际网络语言,是金融界语言,是空中交通管制语言,是流行音乐的语言,英语涵盖了人类生活的方方面面,我国是经济大国,所以学好英语真的是太重要了。
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