21. fewer, less.fewer指可數(shù)名詞;less 指價(jià)值, 程度或數(shù)額。
F:The class consists of less than fifteen students.
T:The class consists of fewer than fifteen students.
F:He spends fewer time on his studies than on his golf game.
T:He spends less time on his studies than on his golf game.
F:It is true that less girls than boys become engineers.
T:It is true that fewer girls than boys become engineers,
22.had better, would rather 后跟不帶to的不定式。
F:You had better to pay attention to the details.
T:You had better pay attention to the details.
F:I had better not to play tennis this afternoon.
T:I had better not play tennis this afternoon.
F:The class consists of less than fifteen students.
T:The class consists of fewer than fifteen students.
F:He spends fewer time on his studies than on his golf game.
T:He spends less time on his studies than on his golf game.
F:It is true that less girls than boys become engineers.
T:It is true that fewer girls than boys become engineers,
22.had better, would rather 后跟不帶to的不定式。
F:You had better to pay attention to the details.
T:You had better pay attention to the details.
F:I had better not to play tennis this afternoon.
T:I had better not play tennis this afternoon.

