高二英语知识点重要归纳

知识点是高中英语学习巩固知识点的重要组成部分,下面小编为大家带来高二英语知识点重要归纳,欢迎大家可以参考阅读,希望能够帮助到大家!

高二英语知识点重要归纳

【现在完成进行时】

1. 现在完成进行时的定义

现在完成进行时表示某动作从过去某个时间开始,一直延续到现在,并且还有可能持续下去。如:

We have been waiting for him for two hours. 我们等他等了两个小时。

2. 现在完成进行时的结构

现在完成进行时由“have /has been + 现在分词”构成。

3. 现在完成进行时的应用

现在完成进行时所用的时间状语:this month / week / year, these days, recently / lately, in the past few + 时间段, since +时间点, for + 时间段。如:

They have been building the bridge for two month. 两个月来他们一直在修桥。

They have been planting trees this month. 这个月来他们一直在植树。

4. 现在完成进行时与现在完成时的区别

(1) 现在完成时强调动作的完成,而现在完成进行时强调动作的延续,因此,表示动作的完成,只能用现在完成时,而不能用现在完成进行时。如:

He has changed his idea. 他改变了想法。

(2) 在表示动作的延续时,虽然既可用现在完成时,也可用现在完成进行时,但现在完成进行时强调动作的进行。因此在需要明确表示动作还要持续下去时,应用现在完成进行时。如:

We have been studying here for two years. 我们在这儿已经学习了两年了。

(3) 有些延续性动词(如 keep, learn, live, stay, study, work等),用于现在完成时或现在完成进行时的区别不大。如:

I have lived here for many years.=I have been living here for many years. 我在这儿住了多年了。

高二英语知识点必背梳理

四则运算:

1)加法:在口语中,小数目的加法常用and代表“+”,is或are代表“=”。

在正式的场合或较大数目的加法用plus代表“+”,equals或is代表“=”。

7+4=11 Seven and four is/are eleven.

13+12=25 Thirteen plus twelve equals/is twenty-five.

2)减法:在口语中,小数目的减法用“Take away +减数+ from +被减数+ and you get +余数”

“减数+ from +被减数+ leaves/is +余数”

在正式的场合或较大数目的减法用minus代表“—”,equals代表“=”。

12-5=7 Five from twelve leaves/is seven. /Take away five from twelve and you get seven.

21-7=14 Twenty-one minus seven equals fourteen.

3)乘法:在口语中,小数目的乘法的乘数用复数形式,用are代表“=”。

大数目的乘法用times代表“×”,is/makes代表“=”。

在正式的场合下用multiplied by代表“×”,equals代表“=”。

4×5=20 Four fives are twenty

326×238=77588

Three hundred and twenty-six times two hundred and thirty-eight is/makes seventy-seven thousand five hundred and eighty-eight.

Three hundred and twenty-six multiplied by two hundred and thirty-eight equals seventy-seven thousand five hundred and eighty-eight.

4)除法:小数目的除法:用divided by代表“÷”,equals代表“=”。

“被除数+ divided by +除数+ equals +商”;“除数+ into +被除数+ goes +商”

32÷4=8 Thirty-two divided by four equals eight.

Four into thirty-two goes eight.

大数目的除法:用divided by代表“÷”,equals代表“=”。

216÷8=27

Two hundred and sixteen divided by eight equals twenty-seven.

高二英语知识点语法必考

同位语从句

同位语从句就是在复合句中作名词的同位语的名词性从句。

1.同位语从句的功能

同位语从句对于名词进一步解释,说明名词的具体内容,一般由that引导,例如:

1) The king's decision that the prisoner would be set free surprised all the people.

2) The order that all the soldiers should stay still is given by the general.

2.同位语在句子中的位置

同位语从句有时可以不紧跟在它所说明的名词后面,而是被别的词隔开。例如:

He got the news from Mary that the sports meeting was put off.

3.同位语从句与定语从句的区别

(1)定语从句中的that既代替先行词,同时以在从句中作某个成分(主语或宾语),而同位语从句中的that是连词,只起连接主句与从句的作用,不充当句中任何成分。

(2)定语从句是形容词性的,其功能是修饰先行词,对先行词加以限定,描述定的性质或特征;同位语从句是名词性的,其功能是对名词进行补充说明。例如:

1) The news that he told me is that Tom would go abroad next year.(他告诉我的消息是汤姆明年将出国。)(第一个that引导的从句是定语从句,that在从句中作宾语)

2)The news that Tom would go abroad is told by him.(汤姆将出国的消息是他讲的。)(同位语从句,that在句中不作任何成分)

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