Question

—hat do you think of genetically modified food (轉(zhuǎn)基因食品)?
—We all think ______ is careless ______ some scientists to say it is safe before doing any experiment.

A．that, for

B．it, for

C．it, of

D．that, of

Answer 1

C

試題分析：句意：-----你怎樣認(rèn)為轉(zhuǎn)基因食品？-----我們都認(rèn)為在沒(méi)有進(jìn)行任何試驗(yàn)之前科學(xué)家們說(shuō)它很安全是他們的疏忽。這里是固定句式it be 形容詞+of sb to do,當(dāng)形容詞可以描述某人的性格，品行時(shí)，用介詞of而不用介詞for，it在這里是形式主語(yǔ)，故選C。