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      談句式變換在英語解題中的運(yùn)用

      2008-11-25 10:47:44
      中學(xué)生英語高效課堂探究 2008年11期
      關(guān)鍵詞:并列句連詞定語

      陳 霞

      中學(xué)英語基礎(chǔ)知識點(diǎn)多面寬,學(xué)生們總是感到難以準(zhǔn)確地理解和掌握,因此老師一講學(xué)生就懂而學(xué)生自己一動(dòng)筆就錯(cuò)的現(xiàn)象時(shí)有發(fā)生。怎樣才能活用所學(xué)的基礎(chǔ)知識是一個(gè)急待解決的問題。在此,筆者結(jié)合教學(xué)實(shí)踐,談?wù)勅绾卫镁涫阶儞Q來獲得事半功倍的學(xué)習(xí)效果。

      英語句子從結(jié)構(gòu)上可分為簡單句、并列句、復(fù)合句三種;簡單句的五種基本句型是句式變換的核心。解題時(shí)可首先根據(jù)特定的語境,把握句式的特點(diǎn)并確定出最佳答案,然后再結(jié)合語境變換句式,以期能舉一反三,解決這一類問題。

      例1. This is the most beautiful gift Ive ever received, ___________ I will value for all my life.

      A. itB. that C. one D. what

      分析:該題中后半部分是對前面the most beautiful gift的補(bǔ)充說明。英語中后者對前者的補(bǔ)充說明可以用三種句式:

      (1)非限制性定語從句: This is the most beautiful gift Ive ever received, which I will value for all my life.

      (2) 并列句: This is the most beautiful gift Ive ever received and I will value it for all my life.

      (3)同位語:如上題答案為C,one用作同位語,指“一份我將永遠(yuǎn)珍視的禮物。”

      如果用what則可以表達(dá)如下: The most beautiful gift Ive ever received is what I will value for all my life. (what引導(dǎo)表語從句)

      例2. ______________ is known to us all is that every obstacle presents an opportunity to improve ones condition.

      A. As B. That C. What D. It

      分析:該題意為“眾所周知,每一個(gè)障礙都是一次提高自我的機(jī)會?!睂W(xué)生們很容易習(xí)慣性地選擇D項(xiàng),而此題的正確答案為C。what在此引導(dǎo)一個(gè)主語從句,that在句中引導(dǎo)一個(gè)表語從句,整個(gè)句子是“主語 + 系表”結(jié)構(gòu)。該句還可有三種句式表達(dá):

      (1) 形式主語句型: It is known to us all that every obstacle presents an opportunity to improve ones condition.

      (2) 非限制性定語從句: As is known to us all, every obstacle presents an opportunity to improve ones condition.

      (3) that引導(dǎo)的主語從句: That every obstacle presents an opportunity to improve ones condition is known to us all.

      例3. ___________-- straight on and you will see a church. You wont miss it.

      A. Go B. Going

      C. If you go D. When going

      分析:該題的關(guān)鍵在于句式的識別。句中用了并列連詞and,從結(jié)構(gòu)上看應(yīng)該是一個(gè)并列句,前面部分是祈使句(動(dòng)詞原形開頭),所以正確答案為A。該句還可有兩種句式表達(dá):

      (1)簡單句(-ing分詞作狀語): Going (When going) straight on, you will see a church. You wont miss it.

      (2) 復(fù)合句: If you go straight on, you will see a church. You wont miss it.

      例4. Students shouldnt be given so difficult a problem___________________-they can not work out.

      A. that B. which

      C. while D. as

      分析: 該題容易受到“so difficult a problem”的影響而誤選that,因?yàn)椤皊o + adj. + that ...”為常見句型,表示“如此……以致于……”之意。但該句中they can not work out中缺少了賓語,而空格處的連詞既要連接從句,又要在從句中作work out的賓語,同時(shí)又常與so連用,故正確答案為D,即as引導(dǎo)一個(gè)限制性定語從句。如果用“so + adj. + that ...”句型,該句應(yīng)為:

      Students shouldnt be given so difficult a problem that they can not work it out.

      例5. It was twelve oclock at midnight______________they arrived at a lonely village.

      A. that B. before

      C. since D. when

      分析: 以“It is / was” 開頭的句子通常可以先判斷是否為強(qiáng)調(diào)結(jié)構(gòu),方法是先去掉“It is / was”和空格處的連詞,然后再分析句子剩下部分的結(jié)構(gòu)意義是否完整,如果完整,就是強(qiáng)調(diào)結(jié)構(gòu),否則,則不是。該句中去掉“It is / was”和空格后,twelve oclock at midnight they arrived at a lonely village在結(jié)構(gòu)上不完整,若需要句子完整則需要在twelve oclock at midnight之前加上介詞at,所以該句不是強(qiáng)調(diào)結(jié)構(gòu)。該題答案為D, when在此處引導(dǎo)一個(gè)時(shí)間狀語從句。本句若用強(qiáng)調(diào)句表達(dá)應(yīng)為:

      It was at twelve oclock at midnight that they arrived at a lonely village.

      句式變換不僅可用于不同句型之間的同義轉(zhuǎn)換表達(dá),也可以用于同一句型的不同變化。

      例6. “You cant have this football back _____________ you promise not to kick it at my cat again,” the old man said firmly.

      A. because B. since

      C. when D. until

      分析:該題意為“直到你承諾不再用球踢我的貓,你才可以拿回這個(gè)足球。”,其中“直到……才……”常用“not ... until ...”結(jié)構(gòu)表達(dá),故答案為D。該句型還可以用下面兩種句型表達(dá):

      (1) 倒裝句: Not until you promise not to kick it at my cat again can you have this football back.

      (2)強(qiáng)調(diào)句: It is not until you promise not to kick it at my cat again that you can have this football back.

      以上幾例旨在拋磚引玉,在英語學(xué)習(xí)中同學(xué)們既要熟練地掌握基本句式,同時(shí)也要明析語境,學(xué)會變通,才能最終提高學(xué)習(xí)效率。

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