2017年6月英語四級語法20天沖關快訓:第五天

字號:

※2017年6月英語四六級考試太難?只是你沒有找對方法而已!點擊查看秘籍!
    【手機用戶】→點擊進入免費試聽>>【CET4】 * 【CET6】
    【電腦用戶】→點擊進入免費試聽>>四六級考試課程!
     狀語從句
     狀語從句:兩個獨立的句子中間用一些含義不同的連接詞連接;狀語從句用來表達兩個句子之間的邏輯關系;分成原因狀語、條件狀語、結果狀語、時間狀語、地點狀語、讓步狀語、目的狀語、比較狀語、方式狀語等九大類型;
    eg:I got up late.
    I was late for school.
    Because I got up late, I was late for school. (原因狀語從句)
    I got up late,so I was late for school. (結果狀語從句)
    1) 時間狀語從句
    時間狀語從句主要由以下連詞引導:when, whenever, as, while, since, until, till, before, after, as soon as, once, hardly (scarcely) …when, no sooner …than。
    I will discuss the matter with you when we meet tomorrow.
    時間狀語從句還可由某些可充當連詞的名詞(the moment, the instant, every time,等)和副詞(instantly, directly等)引導:
    I will tell you the news the instant I know.
    Note:
    ①before除了可表示“在…之前”外,還可用來強調主句所表達的時間、距離很長或花費的力量相比較大,可譯為“…才”。(“not …before”可用來強調主句所表達的時間、距離很短或花費的力量相比較小,可譯為“…就”)。
    It was a long time before I got to sleep again.
    ②如果位于when引導的分句之前的主句使用過去進行時、過去完成時或“was/were about to, was/were on the point of”等結構時,when表示突然發(fā)生某事,可譯為“正在…突然”或“剛…就”等。這時,不能夠用as或while來代替when。
    I was walking on the street when I ran into my old friend John.
    2) 條件狀語從句
    條件狀語從句主要由以下連詞引導:if, unless, providing/provided (that), suppose/supposing (that), on condition (that), as/so long as, in case等。
    So long as you work hard, you will surely achieve good results in examinations.
    3) 讓步狀語從句
    讓步狀語從句主要由以下連詞引導:though, although, even if, even though, whatever, however, whoever, wherever, no matter how/ what/ where/ when等。以下介紹幾種較特殊的讓步狀語從句。
    (1)while引導的讓步狀語從句多放在句首,while相當于although,表示“盡管”,“雖然”。
    While I admit I did it, I didn’t intend to.
    (2)短語“even now/then/so”相當于“though it is/was true”,表示“盡管如此”,“盡管這樣”。
    The fire was out, but even so, the smell of smoke was strong.
    (3) as引導的讓步狀語從句要倒裝。
    Child as he was, he could speak four languages.
    4) 比較狀語從句
    比較狀語從句主要由以下連詞引導:(not) as …as, (not) the same as, (not) such …as, not so …as, than, the + 比較級…, the +比較級…等。
    We have had a lot more rainfall this year than we had last year.