课时作业(八) 必修2 unit 3 computers ⅰ.单词拼写 1．the conference________(探索，探究) the possibility of closer trade links，but no agreement was reached. 2．what role did new________(科技) play in the spread of mass culture at the turn of the 20th century? 3．we should not judge a person by his________(外表) but people make that mistake from time to time. 4．her speech yesterday was a________(信号) that her views have changed，so you can turn to
