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it強調(diào)句型重難點、 易錯點的歸納和點撥

2020-09-17 13:39:49胡成誠
關(guān)鍵詞:易錯謂語狀語

胡成誠

在英語中,我們常用“It is/was + 被強調(diào)部分+that/who/whom+ 句子其他部分”這一句型結(jié)構(gòu)來突出強調(diào)句子的某一成分,但是在教學(xué)中發(fā)現(xiàn)學(xué)生對強調(diào)句型是“學(xué)起來容易但真正掌握卻很難”,出現(xiàn)很多各種各樣的使用錯誤。下面就對強調(diào)句型的重難點和易錯點作一個歸納和點撥:

1. 誤選強調(diào)句型結(jié)構(gòu)詞

由于受從句等影響,學(xué)生在使用it強調(diào)句型時往往在選擇結(jié)構(gòu)詞時出現(xiàn)錯誤。那么如何才能正確選擇結(jié)構(gòu)詞呢?記住這規(guī)則:不管被強調(diào)部分是什么,都可以用that來構(gòu)成強調(diào)句型,但當被強調(diào)部分指人時,可以用who(m)來代替that,whom作賓語。

(1)被強調(diào)部分為時間狀語、地點狀語或者原因狀語等情況時不能誤用when、where或why等,只能用that。

It was in the street that I met him yesterday.

(2)被強調(diào)部分既包括人又包括物,用that不用who(m)。

It was the good teachers and the latest equipment that we talked about yesterday.

正確選擇結(jié)構(gòu)詞的關(guān)鍵還在于要能夠正確判斷“it強調(diào)句型”,可采用“還原法”判斷:若去掉“It is/was——that”剩下的可以重組成一個句子時是強調(diào)句型。試比較:

It was in 1949 that the PRC was founded.(it強調(diào)句型)

It was 1949 when the PRC was founded.(when時間狀語從句)

2. 萬能化強調(diào)句型

強調(diào)句型的功能很強大但它不是萬能的,不可以強調(diào)句子的任何成分。強調(diào)句型通常用來強調(diào)句子的主語、賓語和狀語。下面列舉不適宜用it強調(diào)句型的常見情形:

(1)it強調(diào)句型不能強調(diào)句子的謂語部分

英語中可用“助動詞do、does、did+原形動詞”來強調(diào)謂語。

He did go to the airport yesterday, but he didnt find you.

(2)某些狀語從句不適宜使用it強調(diào)句型強調(diào)

① 不能強調(diào)條件、讓步狀語從句。

It is if it rains that we wont go out. (ⅹ)

It is though we are short of money that well try to do it well. (ⅹ)

② 可強調(diào)because引導(dǎo)的原因狀語從句,但通常不能強調(diào)由since或as引導(dǎo)的原因狀語從句。

It was because he loved my money that he married me. (√)

It is since he can walk around without my help that he is better today. (ⅹ)

③ 可強調(diào)so that引起的目的狀語從句,但不能強調(diào)so that 引起的結(jié)果狀語從句。例如:He didnt plan his time well, so that he didnt do well in his subjects.這一句子中so that引導(dǎo)的從句表示結(jié)果,不可以用強調(diào)句型強調(diào)。

3. 不清楚強調(diào)until時間狀語(從句)的特別點

強調(diào)“not...until...”結(jié)構(gòu)中的時間狀語時強調(diào)句型結(jié)構(gòu)為“It is not until...that...(直到……才……)”,即在強調(diào)until時間狀語(從句)時要注意否定前移:若主句為否定句要把謂語動詞的否定詞not提到until之前,主句由否定句改為肯定句。例如:He didnt go to bed until his father came back. 變?yōu)閺娬{(diào)句型為:It was not until his father came back that he went to bed.

4. 錯用被強調(diào)的人稱代詞的格

被強調(diào)的部分為主語或賓語且其為人稱代詞時,應(yīng)注意其格的形式仍用主格或賓格形式。

【錯誤】It was her that told me the news.

→改正:It was she that told me the news. (“她”作主語)

【錯誤】It is I who the teacher has criticized.

→改正:It is me whom the teacher has criticized. (“我”作賓語)

5. 混淆強調(diào)句型中的主謂一致

(1)it后的be動詞有兩種時態(tài)變化,沒有數(shù)的變化,不管被強調(diào)的部分是單數(shù)還是復(fù)數(shù)只能用單數(shù)形式is 或was:強調(diào)句型原句的謂語是現(xiàn)在時或?qū)頃r的各種形式,就用it is—,是過去時的各種形式,則用it was—。

I studied at this school three years ago.

→It was at this school that I studied three years ago.

Tomorrow were going to have a party.

→It is tomorrow that were going to have a party.

(2)強調(diào)主語時,who 或that后面的謂語形式須與被強調(diào)的主語保持一致。

【錯誤】It is you who is wrong.

→【正確】It is you who are wrong. (are與you保持一致)

【錯誤】It is my friends that helps me with English.

→【正確】It is my friends that help me with English.(help與my friends保持一致)

6. 總結(jié)

以上是對it強調(diào)句型的重難點和易錯點的總結(jié)和分析點撥。雖然這些“很好懂”,但還是非常需要多多練習(xí)、不斷使用,才能全面正確掌握。

參考文獻

[1]張道真. 實用英語語法[M]. 外語教學(xué)與研究出版社, 2002.

[2]薄冰. 高級英語語法[M]. 商務(wù)印書館, 2018.

(作者單位:山東省無棣第一中學(xué))

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