在 There be句型中 There is no smoke without fire There seems to be little time left There,here结构中,如果主语有好几个,谓语动词 与最邻近的主语一致。 There was a TV set, a portrait and several albums on the shelf
三种基本形式 If had a bike.I would lend it to you(f从句用过去时,主句用 should/ would/ could/ mighti不定式) If he had been here he would have helped you(从句过去完成时,主句 should would/ could/ might+不定式完成时) I would do it some other wa(从句用 should/ were to3主句用 should/woud could /might+不定式)
Passage 1 According to the new school of scientists, technology is an overlooked force in expanding the horizons of scientific knowledge. 71) Science moves forward, they say, not so much through the insights of great men of genius as because of more ordinary things like improved techniques and tools.72) \In short\, a leader of the new school contends, \the scientific revolution