111滄州市頤和中學(xué)導(dǎo)學(xué)案20132014第二學(xué)期第_32_號 Class _ Name_ Date_學(xué)科高中英語年級高一作者楊衛(wèi)芬 孫悅 課題課型新授學(xué)習(xí)目標：正確使用所列詞匯（在一定語境下會翻譯）1harmful adj.有害的，反義詞-harmless _ (1)be harmful to sb./sth.對某人/某物有害(2) harmful 的名詞為 harm 用法：do harm to sb/sth = do sb harm對某人有害(3)There is no harm in doing sth./It does no harm to do sth.做某事是個好主意(或沒有壞處)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 children's teeth.2exist vi.存在；生存(1) exist on 靠為生(2) There exists/existed . 某地有；存在(3) existence n. 存在；生存come into existence 產(chǎn)生；成立；開始存在There exists a good way to solve the existing problem in geography._They can't exist on the money he's earned._As is known to us, China came_into_existence as an independent country in 1949.adj. 不同的，不一樣的例句： 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