傾聽(tīng)初中作文500字
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)現要改掉一個(gè)壞習慣很難。)該句的原始結構可理解為:We sometimes find (to get rid of a bad habit) difficult. 括號部分(動(dòng)詞不定式)為賓語(yǔ),difficult為賓語(yǔ)補足語(yǔ)
The doctor has made it clear to you that there is nothing wrong with your stomach.(醫生已經(jīng)跟你說(shuō)得很清楚了,你的胃沒(méi)有什么問(wèn)題。)該句的原始結構可理解為:The doctor has made (there is nothing wrong with your stomach)clear. 括號部分(句子)為賓語(yǔ),clear為賓語(yǔ)補足語(yǔ)
歸納:
n 在主語(yǔ) + 賓語(yǔ) + 賓語(yǔ)補足語(yǔ)結構中,當賓語(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)補足語(yǔ)倒裝:當賓語(yǔ)(名詞)較長(cháng),賓語(yǔ)補足語(yǔ)較短(往往是1個(gè)形容詞,如possible, impossible, difficult, easy, clear等)時(shí),為了句子結構均衡,往往采用倒裝,這里不存在"it"的使用問(wèn)題, 對下句作出判斷:
The development of ultrasound has made ______ early diagnosis of some fatal diseases. (超聲波的出現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
該題的正確答案應為B,因為句子采用了倒裝形式,原結構為:
The development of ultrasound has made [early diagnosis of some fatal diseases] possible.
賓語(yǔ) 補足語(yǔ)
3) 記住以下短語(yǔ):
to take…as(把…當作…)
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。
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