2014-2015学年高中英语（安徽，北师大版选修7）课时作业：Unit 20　New Frontiers 课时作业(六)　 Word版含答案-高考资源网-精品资源下载

ⅰ.单词拼写

1．the doctor doesn't________(允许)the patient to go upstair until her leg is better.

2．the impression she had made on me seemed to ________(逐渐变弱)gradually from my mind.

3．the________(现象)that rivers freeze in cold winter is common in this area.

4．the black did not know which part of africa their________(祖先)had come from.

5．dogs are used to ________(嗅)out unlawful drugs which are hidden somewhere.

6．don't ________(压)this ball hard，otherwise you will get it blown up.

7．modern international business is believed to come from this________(最初的)trade from.

2014-2015学年高中英语（安徽，北师大版选修7）课时作业：Unit 20　New Frontiers 课时作业(六)　 Word版含答案

2014-2015学年高中英语（安徽，北师大版选修7）课时作业：Unit 20　New Frontiers 课时作业(六)　 Word版含答案