高中英語連接副詞知識點(diǎn)詳解
高中英語連接副詞知識點(diǎn)詳解
在高中的階段學(xué)生會學(xué)習(xí)到很多的連接副詞，下面學(xué)習(xí)啦的小編將為大家?guī)砀咧杏⒄Z的連接副詞的知識點(diǎn)的介紹 ，希望能夠幫助到大家。
高中英語連接副詞知識點(diǎn)
連接副詞：
可分為兩類，一類是用于連接句子或從句，常見的有therefore, otherwise, however, moreover, still, thus, meanwhile等;
另一類是用于引導(dǎo)從句或不定式，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.
連接副詞的特點(diǎn)：
一、連接句子或從句的連接副詞
連接副詞的性質(zhì)類似于并列連詞，使用時(shí)其前通常用分號或句號;
若其前用逗號，則通常帶有并列連詞(如and)。如：
I don't like it; besides, it's too expensive. 我不喜歡它，而且也太貴了。
We all tried our best; however, we lost the game. / We all tried our best. However, we lost the game. 我們都已盡了最大的努力，不過我們還是輸了。
注意，有的連接副詞(如however等)后通常有逗號與句子的其他成分隔開。另外，有的這類副詞還可位于句中或句末：
Peter is our youngest child, and we have three others besides. 彼昨是我們最小的孩子，我們另外還有三個孩子。
He may, however, come later. 不過，他也許一會兒就到。
We all tried out best. We lost the game, however. 我們都已盡了最大的努力，不過我們還是輸了。
二、引導(dǎo)從句和不定式的連接副詞
用于引導(dǎo)從句(名詞性從句)或不定式的連接副詞主要有when, why, where, how等。如：
Tell me when we shall leave. / Tell me when to leave. 告訴我什么時(shí)候離開。
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. 到哪里去弄到這筆錢正是我們頭痛的事。
That's why he speaks English so well. 那就是他為什么英語講得這么好的原因。
注：連接副詞why 后不能不定式，如可說 I don't know why I must leave.(我不知道我為什么必須離開)，但不能說 I don't know why to leave。
連接副詞的句法特征：
所謂連接代詞和副詞，實(shí)際上就是我們以前學(xué)過的疑問代詞和副詞，如who, whose, whom, what, which, when,where, why,how以及由how構(gòu)成的詞組。
1.連接副詞起對等連接詞的作用,連接兩個句子或子句,如:
however, so, then,moreover,concequencely,hence,also,besides,,otherwise,therefore,thus等。
I feel a bit tired. However, I can hold on.我有點(diǎn)累了,但我能堅(jiān)持下去。
They talked about it for hours. Finally, they decided to go。他們對此商量了好幾個小時(shí),最后他們決定去。
2.連接副詞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。他們對此商量了好幾個小時(shí),最后他們決定去。
finally作為連接副詞,放在句子的句首。
I have never been to Wales. I, therefore, don't know much about it.我從未去過威爾斯,因此我對它知道的不多。
therefore作為連接副詞,位于句子的句中。
3.有些連接副詞的含義彼此相同或相近,在使用時(shí)可以互相替換,而不會改變原句的含義。
The weather was cold. Therefore(Thus), we stayed home.天氣寒冷,因此我們待在家里。
therefore和thus的含義相近,因而也可以互相替換。
在應(yīng)用時(shí)要注意以下兩點(diǎn)：
一是它們在構(gòu)成疑問句時(shí)叫疑問詞，引導(dǎo)賓語從句時(shí)稱作引導(dǎo)詞。
一是它們和that不一樣，在從句中有含義，擔(dān)任相關(guān)的句子成分，所以不能省略，另外，它們須放在賓語從句之首，賓語從句必須是陳述句結(jié)構(gòu)。
引導(dǎo)名詞性從句的連接詞可分為三類：
連接詞：that, whether, if, as if, as though(不充當(dāng)從句的任何成分，但絕不能省略)
連接代詞：what, whatever, who, whoever, whom, whomever, whose, which, whichever.
連接副詞：when, whenever, where, wherever, how, however, why
不可省略的連詞：
1. 介詞后的連詞
2. 引導(dǎo)主語從句和同位語從句的連詞不可省略。
That she was chosen made us very happy.
We heard the news that our team had won.
大部分連接詞引導(dǎo)的主語從句都可以置于句末，用 it充當(dāng)形式主語。
It is not important who will go.
It is still unknown which team will win the match.
高中英語現(xiàn)在完成時(shí)的被動語態(tài)知識點(diǎn)
1.現(xiàn)在完成時(shí)用法基本概念：表示過去發(fā)生的動作對現(xiàn)在造成的影響或結(jié)果;或表示過去已經(jīng)開始，持續(xù)到現(xiàn)在的動作或狀態(tài)。
2.現(xiàn)在完成時(shí)用法基本構(gòu)成：助動詞have/has+過去分詞 過去分詞的變化規(guī)則： 規(guī)則動詞的過去分詞由動詞原形加ed構(gòu)成,不規(guī)則動詞的過去分詞 見不規(guī)則動詞表(教師給學(xué)生復(fù)印)
3.現(xiàn)在完成時(shí)用法中考考查范圍：
1)yet, already, just, before, never, ever, recently等表示時(shí)間的詞作時(shí)間狀語，表示過去發(fā)生的動作對現(xiàn)在造成的影響或結(jié)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 引導(dǎo)的時(shí)間狀語，表示過去已經(jīng)開始，持續(xù)到現(xiàn)在的動作或狀態(tài)
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等時(shí)間狀語用在現(xiàn)在完成時(shí)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 與have/has gone to 的用法區(qū)別
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.現(xiàn)在完成時(shí)與一般過去時(shí)的區(qū)別： 現(xiàn)在完成時(shí)與一般過去時(shí)都表示過去的動作，但現(xiàn)在完成時(shí)強(qiáng)調(diào)這一動作與現(xiàn)在的關(guān)系，如對現(xiàn)在產(chǎn)生的影響、結(jié)果等;而一般過去時(shí)只表示過去的時(shí)間內(nèi)發(fā)生的動作或存在的狀態(tài)，就過去的時(shí)間方面講，只能與一般過去時(shí)連用，而不能與現(xiàn)在完成時(shí)連用。 Tom has been busy now.湯姆現(xiàn)在很忙。(過去的動作對現(xiàn)在有影響) Tom was busy last week.湯姆上星期很忙。(過去的動作對現(xiàn)在沒有影響)
5.判斷正誤：
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. 瞬間性動詞(也可叫點(diǎn)動詞或不延續(xù)性動詞)表示的動作瞬間即可結(jié)束，不能再延續(xù)，因此不能與表示延續(xù)性的時(shí)間狀語連用。
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. 瞬間動詞--------延續(xù)性動詞：應(yīng)逐一記憶 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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