要不要 "it"的問(wèn)題:
先看兩個(gè)句子：
We sometimes find it difficult to get rid of a bad habit. (有時(shí)我們發(fā)現(xiàn)要改掉一個(gè)壞習(xí)慣很難。)該句的原始結(jié)構(gòu)可理解為：We sometimes find (to get rid of a bad habit) difficult. 括號(hào)部分(動(dòng)詞不定式)為賓語(yǔ)，difficult為賓語(yǔ)補(bǔ)足語(yǔ)
The doctor has made it clear to you that there is nothing wrong with your stomach.(醫(yī)生已經(jīng)跟你說(shuō)得很清楚了，你的胃沒(méi)有什么問(wèn)題。)該句的原始結(jié)構(gòu)可理解為：The doctor has made (there is nothing wrong with your stomach)clear. 括號(hào)部分(句子)為賓語(yǔ)，clear為賓語(yǔ)補(bǔ)足語(yǔ)
歸納：
n 在主語(yǔ) + 賓語(yǔ) + 賓語(yǔ)補(bǔ)足語(yǔ)結(jié)構(gòu)中，當(dāng)賓語(yǔ)是"動(dòng)詞不定式"或"句子"時(shí)，要用it(不是this, that或其他任何詞)作形式賓語(yǔ)，將動(dòng)詞不定式或句子移到句子的后面去。
n 考試時(shí)，判斷要不要 "it"，主要看句子后面有沒(méi)有"動(dòng)詞不定式"或"句子"，若有，要選 "it"
n 賓語(yǔ)、賓語(yǔ)補(bǔ)足語(yǔ)倒裝：當(dāng)賓語(yǔ)(名詞)較長(zhǎng)，賓語(yǔ)補(bǔ)足語(yǔ)較短(往往是1個(gè)形容詞，如possible, impossible, difficult, easy, clear等)時(shí)，為了句子結(jié)構(gòu)均衡，往往采用倒裝，這里不存在"it"的使用問(wèn)題, 對(duì)下句作出判斷：
The development of ultrasound has made ______ early diagnosis of some fatal diseases. (超聲波的出現(xiàn)使許多致命疾病的早期診斷成為可能。)
A. it possible
B. possible
C. it is
D. it
該題的正確答案應(yīng)為B，因?yàn)榫渥硬捎昧说寡b形式，原結(jié)構(gòu)為：
The development of ultrasound has made [early diagnosis of some fatal diseases] possible.
賓語(yǔ) 補(bǔ)足語(yǔ)
3) 記住以下短語(yǔ)：
to take…as(把…當(dāng)作…)
to think of…as(把…看作…)
to regard…as(把…看作…)
to refer to…as(把…叫作…)
關(guān)于五個(gè)基本句型，重點(diǎn)要掌握每個(gè)句型的出題點(diǎn)，舉一反三。
先看兩個(gè)句子：
We sometimes find it difficult to get rid of a bad habit. (有時(shí)我們發(fā)現(xiàn)要改掉一個(gè)壞習(xí)慣很難。)該句的原始結(jié)構(gòu)可理解為：We sometimes find (to get rid of a bad habit) difficult. 括號(hào)部分(動(dòng)詞不定式)為賓語(yǔ)，difficult為賓語(yǔ)補(bǔ)足語(yǔ)
The doctor has made it clear to you that there is nothing wrong with your stomach.(醫(yī)生已經(jīng)跟你說(shuō)得很清楚了，你的胃沒(méi)有什么問(wèn)題。)該句的原始結(jié)構(gòu)可理解為：The doctor has made (there is nothing wrong with your stomach)clear. 括號(hào)部分(句子)為賓語(yǔ)，clear為賓語(yǔ)補(bǔ)足語(yǔ)
歸納：
n 在主語(yǔ) + 賓語(yǔ) + 賓語(yǔ)補(bǔ)足語(yǔ)結(jié)構(gòu)中，當(dāng)賓語(yǔ)是"動(dòng)詞不定式"或"句子"時(shí)，要用it(不是this, that或其他任何詞)作形式賓語(yǔ)，將動(dòng)詞不定式或句子移到句子的后面去。
n 考試時(shí)，判斷要不要 "it"，主要看句子后面有沒(méi)有"動(dòng)詞不定式"或"句子"，若有，要選 "it"
n 賓語(yǔ)、賓語(yǔ)補(bǔ)足語(yǔ)倒裝：當(dāng)賓語(yǔ)(名詞)較長(zhǎng)，賓語(yǔ)補(bǔ)足語(yǔ)較短(往往是1個(gè)形容詞，如possible, impossible, difficult, easy, clear等)時(shí)，為了句子結(jié)構(gòu)均衡，往往采用倒裝，這里不存在"it"的使用問(wèn)題, 對(duì)下句作出判斷：
The development of ultrasound has made ______ early diagnosis of some fatal diseases. (超聲波的出現(xiàn)使許多致命疾病的早期診斷成為可能。)
A. it possible
B. possible
C. it is
D. it
該題的正確答案應(yīng)為B，因?yàn)榫渥硬捎昧说寡b形式，原結(jié)構(gòu)為：
The development of ultrasound has made [early diagnosis of some fatal diseases] possible.
賓語(yǔ) 補(bǔ)足語(yǔ)
3) 記住以下短語(yǔ)：
to take…as(把…當(dāng)作…)
to think of…as(把…看作…)
to regard…as(把…看作…)
to refer to…as(把…叫作…)
關(guān)于五個(gè)基本句型，重點(diǎn)要掌握每個(gè)句型的出題點(diǎn)，舉一反三。