③It’s only two weeks since he worked in our factory.

    他離開我們廠才兩個(gè)星期。

    ④It’s over ten years since my father was a basketball player.

    我爸爸已十多年不打籃球了。

    可能有同學(xué)會(huì)問以下的兩個(gè)句子怎么不用反譯呢？

    ⑤I have never seen him since he has been ill. （延續(xù)性動(dòng)詞）

    ⑥I have never seen him since he fell ill. （瞬間動(dòng)詞）

    這是因?yàn)椋�句型必須是It is ...since +v結(jié)構(gòu)“反譯”才成立。

    （二）引導(dǎo)原因狀語(yǔ)從句的連詞的選擇

    引導(dǎo)原因狀語(yǔ)從句的連詞常見的有：because, since, now that , as等。

    表三：because，as，since，for的區(qū)別

    如：

    1. —Why were you absent from the meeting yesterday?
    —Because I was ill.
    2. Since everybody is here, let’s begin our meeting．
    3. As you didn’t turn up at yesterday’s get-together, we missed you very much．
    4. It must have rained last night，for the ground is wet．

    【例8】—May I go and play with Dick this afternoon, Mum?

    —No, you can’t go out _______ your work is being done.

    A. before  B. until C. as D. the moment

    答案：C。

    點(diǎn)撥：此題容易誤選B，考生誤認(rèn)為這是考查 not…until…結(jié)構(gòu)。句中的 your work is being done 表明“你正在做作業(yè)”，這應(yīng)是說(shuō)明前面you can’t go out的原因，所以要選 as 表原因。

    （三）引導(dǎo)讓步狀語(yǔ)從句的連詞的選擇

    引導(dǎo)讓步狀語(yǔ)從句的連詞有：though，although，as，even if / though，no matter wh-， wh-ever，whether…or…等。其中特別要注意whatever，whoever，whomever，whichever，whenever，wherever，however及no matter + what / who/ whom/ which/ when/ whever/ how的正確選擇。

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