Question

The robot Tony was said        already in Larry’s house before he returned.

A．to test out	B．to have been tested out
C．to be tested out	D．to be testing out

Answer 1

B

試題分析：考查句型：sb/sth is said to do/to have done,如果是將要做，用不定式一般式to do如果是已經(jīng)做了，用不定式的完成式，句意：據(jù)說(shuō)機(jī)器人Tony在回來(lái)前已經(jīng)在Larry的家里做過(guò)實(shí)驗(yàn)。Tony和test out是被動(dòng)關(guān)系，用不定式完成式的被動(dòng)。選C。
點(diǎn)評(píng)：固定句型是學(xué)習(xí)語(yǔ)言的重要環(huán)節(jié)。sb/sth is said to do/to have done,可以轉(zhuǎn)化成It is said that句型，解答這類(lèi)題目，關(guān)鍵是理解題干意思從而判斷是動(dòng)詞不定式的什么形式，根據(jù)意思放入句子中進(jìn)行比較，不難選出正確答案。