Ⅰ．单词拼写
1．The six ________(宇航员) on board will spend ten days in space.
2．There is some confusion about what the right ________(程序) should be.
3．________(聪明的)people can often simplify the complex things while a fool is more likely to complicate the simple things.
4．If you drop something, the force of ________(引力)will pull it to the floor.
5．The pressure while working can affect the physical and ________(精神的) health of the workers.
【答案】1．astronauts 2．procedure 3．Intelligent 4．gravity 5．mental
