Ⅰ. 单句语法填空
1. There are many kinds of recreational facilities(facility) in our school.
2. They had sufficient(sufficiency) food to sustain life.
3. While sleeping, astronauts must attach themselves to something to prevent floating(float) around.
4. She solved the problem in an intelligent (intelligence) way.
5. Yet, they are not as universal (universe)as we think.
6. What can go around the earth without rockets(rocket)?
7. John Glenn, the American who first orbited(orbit) the Earth, was welcomed with 3, 529 tonnes of ticker tape when he got back.
8. But I want to be strong and independent(independence) one day.
9. Keeping your muscles(muscle) strong helps you to avoid back problems.
10. He leaped (leap)forward and caught the ball.