A．单词拼写
1．China has also sent up some man made earth ________(卫星).
2．The __________(宇宙飞船)Astra which left the earth a short time ago, will be travelling three hundred miles into space.
3．The old men used to be famous nuclear ________(物理学家).
4．He was seen ______(碰撞) his car into a wall.
5．There was enough water to __________(使……漂浮)the ship.
6．The stone rolled down the hill by ______(重力).
7．A __________(生物学家)is mainly studying biology.
8．He is a __________(温和的，文雅的)person, and we all consider him as a gentleman.
9．He ________(拉)the door open and rushed out.
10．With the changes in the world’s __________(气候)，dinosaurs died, but many smaller animals lived on.
【答案】1.satellites 2.spaceship 3.physicists 4．crashing/to crash 5.float 6.gravity
7．biologist 8.gentle 9.pulled 10.climate
/span> 9.Why 10.Which
