2.I can’t c____________ on my work when I am hungry.

答案: concentrate

1.It was s____________ of you to go out in the hot sun without a hat.

答案: silly

17. The old like to sit in an armchair because it is more ____________.

答案: comfortable

Section B

重要词组　 be strict with, at present,learn from,the other day

16. There is much ____________ in a satellite.

答案: technology

15. The ____________ dress is always expensive.

答案: latest

14. New ____________ is popular today because it can make our lives easier.

答案: equipment

13. Steven finishes basketball ____________ at 6’clock every day.

答案: practice

12. I failed the English exam. (变同义句)

I _________ _________ the English exam.

答案: didn’t pass

11. Alice is too young to look after herself. (变同义句)

Alice isn’t _________ _________ to look after herself.

答案: old enough

10. I think she will let her parents down. (改否定句)

_______________________________________________________________________

答案: I don’t think she will let her parents down.