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111沧州市颐和中学导学案20132014第二学期第_32_号 Class _ Name_ Date_学科高中英语年级高一作者杨卫芬 孙悦 课题课型新授学习目标：正确使用所列词汇（在一定语境下会翻译）1harmful adj.有害的，反义词-harmless _ (1)be harmful to sb./sth.对某人/某物有害(2) harmful 的名词为 harm 用法：do harm to sb/sth = do sb harm对某人有害(3)There is no harm in doing sth./It does no harm to do sth.做某事是个好主意(或没有坏处)1). Air pollution will get worse and this will be harmful to people; for example, it can cause cancer._2). To be honest, there_is_no_harm_in making an apology to him first.3). Experts point out that fruit juices can be harmful to childrens teeth.2exist vi.存在；生存(1) exist on 靠为生(2) There exists/existed . 某地有；存在(3) existence n. 存在；生存come into existence 产生；成立；开始存在There exists a good way to solve the existing problem in geography._They cant exist on the money hes earned._As is known to us, China came_into_existence as an independent country in 1949.adj. 不同的，不一样的例句： These two sisters are unlike. _3. in time _例句： He may get there in time, but Im not sure. _ If you keep trying, you will succeed in time. _拓展 ： on time _ in no time _ at no time _ at times = from time to time _ +111
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