高中英语连接副词知识点详解范文

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高中英语连接副词知识点

连接副词：

可分为两类，一类是用于连接句子或从句，常见的有therefore, otherwise, however, moreover, still, thus, meanwhile等;

另一类是用于引导从句或不定式，主要有when, why, where, how等。

例如：We all tried our best; however, we lost the game.

Tell me when we shall leave.

I do not know how to find him.

连接副词的特点：

一、连接句子或从句的连接副词

连接副词的性质类似于并列连词，使用时其前通常用分号或句号;

若其前用逗号，则通常带有并列连词(如and)。如：

I don't like it; besides, it's too expensive. 我不喜欢它，而且也太贵了。

We all tried our best; however, we lost the game. / We all tried our best. However, we lost the game. 我们都已尽了最大的努力，不过我们还是输了。

注意，有的连接副词(如however等)后通常有逗号与句子的其他成分隔开。另外，有的这类副词还可位于句中或句末：

Peter is our youngest child, and we have three others besides. 彼昨是我们最小的孩子，我们另外还有三个孩子。

He may, however, come later. 不过，他也许一会儿就到。

We all tried out best. We lost the game, however. 我们都已尽了最大的努力，不过我们还是输了。

二、引导从句和不定式的连接副词

用于引导从句(名词性从句)或不定式的连接副词主要有when, why, where, how等。如：

Tell me when we shall leave. / Tell me when to leave. 告诉我什么时候离开。

I don't know how I can find him. / I don't know how to find him. 我不知道如何找到他。

Where we can get the money is just our problem. / Where to get the money is just our problem. 到哪里去弄到这笔钱正是我们头痛的事。

That's why he speaks English so well. 那就是他为什么英语讲得这么好的原因。

注：连接副词why 后不能不定式，如可说 I don't know why I must leave.(我不知道我为什么必须离开)，但不能说 I don't know why to leave。

连接副词的句法特征：

所谓连接代词和副词，实际上就是我们以前学过的疑问代词和副词，如who, whose, whom, what, which, when,where, why,how以及由how构成的词组。

1.连接副词起对等连接词的作用,连接两个句子或子句,如:

however, so, then,moreover,concequencely,hence,also,besides,,otherwise,therefore,thus等。

I feel a bit tired. However, I can hold on.我有点累了,但我能坚持下去。

They talked about it for hours. Finally, they decided to go。他们对此商量了好几个小时,最后他们决定去。

2.连接副词通常位于子句的句首,有的也可位于句中。

They talked about it for hours. Finally, they decided to go。他们对此商量了好几个小时,最后他们决定去。

finally作为连接副词,放在句子的句首。

I have never been to Wales. I, therefore, don't know much about it.我从未去过威尔斯,因此我对它知道的不多。

therefore作为连接副词,位于句子的句中。

3.有些连接副词的含义彼此相同或相近,在使用时可以互相替换,而不会改变原句的含义。

The weather was cold. Therefore(Thus), we stayed home.天气寒冷,因此我们待在家里。

therefore和thus的含义相近,因而也可以互相替换。

在应用时要注意以下两点：

一是它们在构成疑问句时叫疑问词，引导宾语从句时称作引导词。

一是它们和that不一样，在从句中有含义，担任相关的句子成分，所以不能省略，另外，它们须放在宾语从句之首，宾语从句必须是陈述句结构。

引导名词性从句的连接词可分为三类：

连接词：that, whether, if, as if, as though(不充当从句的任何成分，但绝不能省略)

连接代词：what, whatever, who, whoever, whom, whomever, whose, which, whichever.

连接副词：when, whenever, where, wherever, how, however, why

不可省略的连词：

1. 介词后的连词

2. 引导主语从句和同位语从句的连词不可省略。

That she was chosen made us very happy.

We heard the news that our team had won.

大部分连接词引导的主语从句都可以置于句末，用 it充当形式主语。

It is not important who will go.

It is still unknown which team will win the match.

高中英语现在完成时的被动语态知识点

1.现在完成时用法基本概念：表示过去发生的动作对现在造成的影响或结果;或表示过去已经开始，持续到现在的动作或状态。

2.现在完成时用法基本构成：助动词have/has+过去分词 过去分词的变化规则： 规则动词的过去分词由动词原形加ed构成,不规则动词的过去分词 见不规则动词表(教师给学生复印)

3.现在完成时用法中考考查范围：

1)yet, already, just, before, never, ever, recently等表示时间的词作时间状语，表示过去发生的动作对现在造成的影响或结果 天津中考：

------What are you going to do this weekend? -------I ____yet.

A.haven not decided B.will not decide

C.have decided D.did not decide

2)since, for 引导的时间状语，表示过去已经开始，持续到现在的动作或状态

上海中考：The Oriental Pearl TV Tower________thousands of visitors since 1995.

A.attracted B.attracts

C.has attracted D. Will attract

3)this morning, this week, today, now等时间状语用在现在完成时中

河北中考：-----______Betty this morning? ----Not yet, but she is sure to be here before noon.

A.Have you seen B.Will you see

C.Do you see D.Did you see

4)have/has been to 与have/has gone to 的用法区别

河南中考：Mike ______the bookshop .I have to wait for him.

A.went to B.was in

C. Has been to D.has gone to

4.现在完成时与一般过去时的区别： 现在完成时与一般过去时都表示过去的动作，但现在完成时强调这一动作与现在的关系，如对现在产生的影响、结果等;而一般过去时只表示过去的时间内发生的动作或存在的状态，就过去的时间方面讲，只能与一般过去时连用，而不能与现在完成时连用。 Tom has been busy now.汤姆现在很忙。(过去的动作对现在有影响) Tom was busy last week.汤姆上星期很忙。(过去的动作对现在没有影响)

5.判断正误：

1)When have you got here? When did you get here?

2) I have had bought the book two days ago. I have had the book for two days.

3)I have just finished my homework. I have finished my home work a moment ago.

4)Have you ever met an American before? I have met an American last year. 瞬间性动词(也可叫点动词或不延续性动词)表示的动作瞬间即可结束，不能再延续，因此不能与表示延续性的时间状语连用。

5)I have left Wuhan for ten days. I have been away from Wuhan for ten days. It is (has been) ten days since I left Wuhan. Two months has passed since we arrived here. 瞬间动词--------延续性动词：应逐一记忆 become-----be begin to study----study borrow-----keep break------be broken buy---have close----be closed come---be here die-----be dead go-----be away get up---be up have got-have join---be in leave---be away lose----be lost marry---be married open---be open

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