填空題?？冀Y(jié)構(gòu)
一、主句單一原則任何一個(gè)句子中只可能有一個(gè)主句。做題時(shí)考生需要首先判斷原題中已經(jīng)給出的句子結(jié)構(gòu)，如果已經(jīng)有一個(gè)主句，那么就絕對(duì)不能夠再出現(xiàn)另一個(gè)主句，除非中間有連接詞進(jìn)行聯(lián)系。
例1：___, work songs often exhibit the song culture of a people in a fundamental form. (A) They occur where they are (B) Occuring where (C) Where they occur (D) Where do they occur 分析：空格后面是一個(gè)主句，(A)為帶有從句的主句，空格后又是主句，有兩個(gè)主句一定錯(cuò)。C為地點(diǎn)狀語(yǔ)從句，正確(勞動(dòng)歌曲發(fā)生的地方)。
例2: ___Indiana, is in a rich farming and dairy area, it is primarily a diversified industrial center (A) Fort Wayne (B) Although Fort Wayne (C) For wayne is in (D) Fort Wayne, in 分析：空格后有兩個(gè)謂語(yǔ)動(dòng)詞但中間沒(méi)有連接詞，由此可知，最后一句話是一個(gè)主句，空格處應(yīng)該有從句引導(dǎo)詞，四個(gè)選項(xiàng)中只有（B）中although能引導(dǎo)從句，故選（B）。
二、謂語(yǔ)動(dòng)詞專一原則任何一個(gè)句子只可能存在一個(gè)謂語(yǔ)動(dòng)詞。句子中不可能沒(méi)有謂語(yǔ)動(dòng)詞，也不能多于一個(gè)謂語(yǔ)動(dòng)詞(除非中間存在連接詞)。
例1：William Walker's mural, “Wall of Respect,” ___an outdoor wall in Chicago, deals with social issues. (A) covers (B) covers it (C) which covers (D) which it covers 分析：空格后的deals with 是謂語(yǔ)動(dòng)詞，A, B是謂語(yǔ)形式, 和deals with 之間沒(méi)有連接詞，可先排除; D 中的it多余，因?yàn)樵诙ㄕZ(yǔ)從句中which已經(jīng)作了主語(yǔ)；C構(gòu)成正確的定語(yǔ)從句
例2：In copper engravings and etchings, ___caused by the edges of the plate is clearly visible on the paper. (A) the impression is (B) if the impression is (C) impressions (D) the impression 分析：題目中的is是謂語(yǔ)，A,B中是謂語(yǔ)重復(fù)。C為復(fù)數(shù)名詞，與后面的謂語(yǔ)動(dòng)詞is的數(shù)不一致，故也排除。因此選擇D，caused.... 修飾impression
三、平行結(jié)構(gòu)技巧：如果填空題中空格的后面有and, 或者and后面有空格，那么這道題目一定是考察平行結(jié)構(gòu)。填空題中平行結(jié)構(gòu)出現(xiàn)的形式是： A and B, A , B, and C
例1：The technique of recording, classifying, and___is known as accounting. (A) an enterprise's transactions summary (B) the summarizing of an enterprise's transactions (C) transactions of an enterprise are summarized (D) summarizing the transactions of an enterprise 分析：空格的后面是and, 一般考平行結(jié)構(gòu)，空格處缺與前面recording、classifying并列的動(dòng)名詞。四個(gè)選項(xiàng)中只有（D）符合條件，故選（D）。
例2：Louis T. Wright, a surgeon, developed ingenious orthopedic braces, ___, and supervised the first use of Aureomycin on human patients. (A) treating skull fractures that he pioneered in (B) pioneered in treating skull fractures (C) which pioneered in treating skull fractures (D) he was a pioneer in the treatment of skull fractures 分析：空格后面是and, 空格處缺少和developed、supervised平行的謂語(yǔ)動(dòng)詞，因此選擇（B）。
四、賓語(yǔ)從句結(jié)構(gòu)賓語(yǔ)從句的引導(dǎo)詞在前面的主從復(fù)合句中已經(jīng)提到。這里指出的是填空題中關(guān)于賓語(yǔ)從句考的最多的兩個(gè)結(jié)構(gòu)： state(陳述，表明)+that indicate(指明,表明)+that
例1：The quantum theory states ___, such as light, is given off and absorbed in tiny definite units called quanta or photons. (A) energy that (B) that it is energy (C) it is energy (D) that energy 分析：空格前的謂語(yǔ)動(dòng)詞states一般接關(guān)系連詞that引導(dǎo)的賓語(yǔ)從句，故首先排除C?？崭窈笠延兄^語(yǔ)動(dòng)詞，空格不應(yīng)再出現(xiàn)謂語(yǔ)動(dòng)詞，因此D正確。
例2：Studies of the gravity field of the Earth indicate___yield when unusual weight is placed on them. (A) although its crust and mantle (B) its crust and mantle to (C) that its crust and mantle (D) for its crust and mantle to 分析：空格處顯然缺謂語(yǔ)動(dòng)詞indicate的賓語(yǔ)。（A）和（D）不能作賓語(yǔ)，可首先排除。（B）使句子結(jié)構(gòu)混亂、語(yǔ)義不清，因此選擇（D），構(gòu)成賓語(yǔ)從句。
一、主句單一原則任何一個(gè)句子中只可能有一個(gè)主句。做題時(shí)考生需要首先判斷原題中已經(jīng)給出的句子結(jié)構(gòu)，如果已經(jīng)有一個(gè)主句，那么就絕對(duì)不能夠再出現(xiàn)另一個(gè)主句，除非中間有連接詞進(jìn)行聯(lián)系。
例1：___, work songs often exhibit the song culture of a people in a fundamental form. (A) They occur where they are (B) Occuring where (C) Where they occur (D) Where do they occur 分析：空格后面是一個(gè)主句，(A)為帶有從句的主句，空格后又是主句，有兩個(gè)主句一定錯(cuò)。C為地點(diǎn)狀語(yǔ)從句，正確(勞動(dòng)歌曲發(fā)生的地方)。
例2: ___Indiana, is in a rich farming and dairy area, it is primarily a diversified industrial center (A) Fort Wayne (B) Although Fort Wayne (C) For wayne is in (D) Fort Wayne, in 分析：空格后有兩個(gè)謂語(yǔ)動(dòng)詞但中間沒(méi)有連接詞，由此可知，最后一句話是一個(gè)主句，空格處應(yīng)該有從句引導(dǎo)詞，四個(gè)選項(xiàng)中只有（B）中although能引導(dǎo)從句，故選（B）。
二、謂語(yǔ)動(dòng)詞專一原則任何一個(gè)句子只可能存在一個(gè)謂語(yǔ)動(dòng)詞。句子中不可能沒(méi)有謂語(yǔ)動(dòng)詞，也不能多于一個(gè)謂語(yǔ)動(dòng)詞(除非中間存在連接詞)。
例1：William Walker's mural, “Wall of Respect,” ___an outdoor wall in Chicago, deals with social issues. (A) covers (B) covers it (C) which covers (D) which it covers 分析：空格后的deals with 是謂語(yǔ)動(dòng)詞，A, B是謂語(yǔ)形式, 和deals with 之間沒(méi)有連接詞，可先排除; D 中的it多余，因?yàn)樵诙ㄕZ(yǔ)從句中which已經(jīng)作了主語(yǔ)；C構(gòu)成正確的定語(yǔ)從句
例2：In copper engravings and etchings, ___caused by the edges of the plate is clearly visible on the paper. (A) the impression is (B) if the impression is (C) impressions (D) the impression 分析：題目中的is是謂語(yǔ)，A,B中是謂語(yǔ)重復(fù)。C為復(fù)數(shù)名詞，與后面的謂語(yǔ)動(dòng)詞is的數(shù)不一致，故也排除。因此選擇D，caused.... 修飾impression
三、平行結(jié)構(gòu)技巧：如果填空題中空格的后面有and, 或者and后面有空格，那么這道題目一定是考察平行結(jié)構(gòu)。填空題中平行結(jié)構(gòu)出現(xiàn)的形式是： A and B, A , B, and C
例1：The technique of recording, classifying, and___is known as accounting. (A) an enterprise's transactions summary (B) the summarizing of an enterprise's transactions (C) transactions of an enterprise are summarized (D) summarizing the transactions of an enterprise 分析：空格的后面是and, 一般考平行結(jié)構(gòu)，空格處缺與前面recording、classifying并列的動(dòng)名詞。四個(gè)選項(xiàng)中只有（D）符合條件，故選（D）。
例2：Louis T. Wright, a surgeon, developed ingenious orthopedic braces, ___, and supervised the first use of Aureomycin on human patients. (A) treating skull fractures that he pioneered in (B) pioneered in treating skull fractures (C) which pioneered in treating skull fractures (D) he was a pioneer in the treatment of skull fractures 分析：空格后面是and, 空格處缺少和developed、supervised平行的謂語(yǔ)動(dòng)詞，因此選擇（B）。
四、賓語(yǔ)從句結(jié)構(gòu)賓語(yǔ)從句的引導(dǎo)詞在前面的主從復(fù)合句中已經(jīng)提到。這里指出的是填空題中關(guān)于賓語(yǔ)從句考的最多的兩個(gè)結(jié)構(gòu)： state(陳述，表明)+that indicate(指明,表明)+that
例1：The quantum theory states ___, such as light, is given off and absorbed in tiny definite units called quanta or photons. (A) energy that (B) that it is energy (C) it is energy (D) that energy 分析：空格前的謂語(yǔ)動(dòng)詞states一般接關(guān)系連詞that引導(dǎo)的賓語(yǔ)從句，故首先排除C?？崭窈笠延兄^語(yǔ)動(dòng)詞，空格不應(yīng)再出現(xiàn)謂語(yǔ)動(dòng)詞，因此D正確。
例2：Studies of the gravity field of the Earth indicate___yield when unusual weight is placed on them. (A) although its crust and mantle (B) its crust and mantle to (C) that its crust and mantle (D) for its crust and mantle to 分析：空格處顯然缺謂語(yǔ)動(dòng)詞indicate的賓語(yǔ)。（A）和（D）不能作賓語(yǔ)，可首先排除。（B）使句子結(jié)構(gòu)混亂、語(yǔ)義不清，因此選擇（D），構(gòu)成賓語(yǔ)從句。