Warm Water Freezes(结冰） More Quickly
Warm water freezes more quickly (1) cold water.Sir Francis Bacon said that almost (2).But (3) people believed him Later,a Canadian scientist Ceorge Kell proved (4) English school(学者） was right.Dr.Kell filled (5) open jar with cold water.He filled (6) with warm water.He made (7) the same low temperature.And the warm water fruze first.What was the reason?(8) of the warn water changed into vapour.It went (9) the air.This meant (10) less of the warm water was left to freeze.And so the warm water froze faster than the cold water.
1.A.then
B.than
C.that
2.A.four hundred years ago
B.four hundreds years ago
C.four hundreds years before
3.A.a few
B.few
C.little
4.A.an
B.a
C.the
5.A.an
B.the
C.a
6.A.another
B.other
C.the other
7.A.two
B.both
C.either
8.A.Some
B.Few
C.Many
9.A.in
B.to
C.into
10.A.that
B.it
C.this
