It is conceivable that knowledge plays an important role in our life.
◆2)It is+形容词+to do/ doing
She had said what it was necessary to say.
Work hard, and you will finally be able to reach your destination.
It is said that visitors spend only half as much money in a day in Leeds as in Lon-don.
The reservoir is three times as big as it was ten years ago.
◆6) 倍数词+ more +名词/形容词十than
Smoking is so harmful to personal health that it kills seven times more people each year than automobile accidents.
The environmental problems are not as serious as they suggested in their report.
She is no more fit to be a manager than a schoolgirl would be
◆9)Nothing is more...than(没有比……更……的;……是最……的)
Nothing is more important thanto receive education.
They hurriedly escaped into a cave that smelt of terror.
◆11)without/ not so much as(甚至没有)
Disappointed with her husband，Mary left home without so much as looking back at him.
◆12)may/ might as well(…as)(与其……还不如……)
One may as well not know a thing at all as know but imperfectly.
It was not too bright of them to settle in an area where earthquakes frequently occur
◆14)only to find/ see(结果却;没想到会)
He spent almost all his money to buy the hen which was said to be able to lay gold eggs, only to find it could not lay eggs at all.
◆15)It is undoubted that/ There is no doubt that(毫无疑问，……)
There is no doubt that war can be avoided if we get down to peace talk.