1.一部吸引观众的电影从一开头就能调起他们的兴趣。(appeal)
2.该自然保护区的工人们试图靠他们自己来清理,但他们的努力远远不够。(reserve)
3.她昨晚已恢复了知觉,但是可能还要很长一段时间才能重拾网球拍。(consciousness)
4.学校团体旅游对孩子们大量了解自己的国家提供了一个好机会。(excursion)
5.许多美籍华人在美国经济中起着如此重要的作用以至于在某些领域,他们是不可替代的。(substitute)
<Keys>
1.A film which appeals to the audience can arouse their interest from the very beginning.
2.The workers of this nature reserve try to clean it by themselves but their efforts are not enough.
3.She regained consciousness last night, but there is still a long way to go before she plays tennis again.
4.A school excursion is a good chance for children to learn a great deal about their own country.
5.Many Chinese-Americans are playing such an important role in the American economy that in some fields nobody can substitute for them/ there is no substitute for them.