【正文】
ers are good at nothing. 我們決不能認(rèn)為自己什么都好,別人什么都不好。 注意:在demand、order、suggest、decide、insist, desire, request, mand, doubt等表示要求、命令、建議、決定等意義的動詞后,賓語從句常用“(should)+ 動詞原形”。例如: I insist that she (should) do her work alone. 我堅(jiān)持要她自己工作。 The mander ordered that troops (should) set off at once. 司令員命令部隊(duì)馬上出發(fā)。 2. 用who,whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等關(guān)聯(lián)詞引導(dǎo)的賓語從句相當(dāng)于特殊疑問句,應(yīng)注意句子語序要用陳述語序。例如: I want to know what he has told you. 我想知道他告訴了你什么。 She always thinks of how she can work well. 她總是在想怎樣能把工作做好。 She will give whoever needs help a warm support. 凡需要幫助的人,她都會給予熱情的支持。 3. 用whether或if引導(dǎo)的賓語從句,其主語和謂語的順序也不能顛倒,仍保持陳述句語序。此外,whether與if 在作“是否”的意思講時(shí)在下列情況下一般只能用whether,不用if: a. 引導(dǎo)主語從句并在句首時(shí);b. 引導(dǎo)表語從句時(shí);c . 引導(dǎo)從句作介詞賓語時(shí);d. 從句后有“or not”時(shí);e. 后接動詞不定式時(shí)。例如: Whether there is life on the moon is an interesting question. 月球上有沒有生命是個(gè)有趣的問題。 Everything depends on whether we have enough money. 一切要看我們是否有足夠的錢。 I wonder whether he will e or not. 我想知道他來還是不來。 Can you tell me whether to go or to stay? 你能否告訴我是去還是留? 4. 注意賓語從句中的時(shí)態(tài)呼應(yīng),當(dāng)主句動詞是現(xiàn)在時(shí),從句根據(jù)自身的句子情況,而使用 不同時(shí)態(tài)。例如: I know (that) he studies English every day. (從句用一般現(xiàn)在時(shí)) I know (that) he studied English last term. (從句用一般過去時(shí)) I know (that) he will study English next year. (從句用一般將來時(shí)) I know (that) he has studied English since 1998. (從句用現(xiàn)在完成時(shí)) 當(dāng)主句動詞是過去時(shí)態(tài)(could, would除外),從句則要用相應(yīng)的過去時(shí)態(tài),如一般過去時(shí),過去進(jìn)行時(shí),過去將來時(shí)等;當(dāng)從句表示的是客觀真理,科學(xué)原