1、volunteer n. 志愿者
volunteer to do sth. 自愿做某事
2、debate n.辩论;争论 vt. & vi. 辩论;争论
a debate on history 关于历史的争论
after a long debate 经过长时间辩论
debate on/over. . . 关于……进行辩论
3、 prefer vt. 较喜欢
prefer to do/doing sth. 更喜欢做某事
prefer sb. to do sth. 更喜欢某人做某事
prefer doing A to doing B =prefer to do A rather than B 比起做B更喜欢做A
4、content adj. 满足的;满意的 n. 满足 vt. 使满足
the contents of the letter信的内容
in content and form 在内容和形式上
a content expression 满足的表情
feel/be content with=be satisfied with 对……感到满足/满意
be content to do sth. =be willing to do sth. 愿意做某事
10、practise doing sth. 练习做某事
11、adventure n. 冒险;奇遇
a sense/spirit of adventure 冒险意识/精神
12、 expert n.专家;行家 adj. 熟练的;内行的;专家的
be expert at/ in doing sth. 擅长做某事
13、attract vt. 吸引;引起……的注意(或兴趣)
attract one's attention 吸引某人的注意
have attraction for 对……有吸引力
14、 focus vi. & vt. 集中(精力、注意力等);(使)调节焦距 n. 中心;重点;焦点
focus one's attention on注意
15、addicted adj. 有瘾的;上瘾的;入迷的
be addicted to doing sth./sth. 对(做)……很入迷