牛津深圳版（广州沈阳通用）八年级下学期UNIT 5 练习

Unit 5 1. It’s very important _____ you to keep the balance of nature.   A.for      B.of       C.to        D.with  . 2. My grandmother is too old_____. A. work B.to work C.working D.works 3. --I think _____good to study with a group. --I agree with you. Groupwork makes us study better. A.that B.it C.its D.this 4. She is not strong enough _____ waling up mountains. A. to go B.going C.go D.went 5. It is very kind _____ you _____me. A.for, helping B.of, help C.for, to help D.of, to help 6. _____ is really hard _____them to climb such a high mountain. A.This, to B.It, to C.This, for D.It, for 7. His parents found _____ to tell him everything that had happened. A.it necessary B.that necessary C.it is necessary D.necessary 8. He wasn’t  _____ with his knife. He cut himself.  A . careful enough     B. enough careful    C. carefully enough     D. enough carefully 9. It’s so brave _______ the soldier to save the boy’s life. A.to B.of C.for D.to 10. The water isn’t warm enough for t