2 . 选词填空

out of shape　go/be on a diet　lose his balance     rather than　prefer playing

1. I prefer to walk ________________ ride a bike to school.
2. When we were young, Li Ming liked reading in the library, while I ________________
(更喜欢打) the basketball on the playground.
3. The children have been playing with my hat—they’ve knocked it _____________ (变形)．
4. Peter is putting on weight; he should ________________________________ (节食)．
5. When he was running after his brother, the boy ________________________ (失去平衡) and had a bad fall.

6 . Once most wires are bent ________, they don’t return to the original position.
大多数金属丝一旦弯曲变形就无法恢复原状。