一 helicopter abacus ferry ambulance handcuffs purse cycling trainer astronaut
二 one hundred and fifty-eight
two thousand and one
fourty-five percent
zero point twenty-five
six point zero three
sixty degree
six point fifty-nine
one thousand five hundred and seventy-one
one/sixth
three/fifth
P43页
一 play football wash his face play the violin make phone calls to sb. arguing fishing
二 (1)1,000、120、852 (2)15、79、17、27、2,005 (3) 3/10、3/5、3/7、7/9 (4) 50%、75% (5)25°、160°
(5)0.78、11.45、21.13、57.22、6.5
P44页
(1)Sun is the only star in our salar system.
(2) It gives us heat and light.
(3) The moon is just 380,000 kilometers away.
(4) It looks much smaller because it is very for awa
