★behave vi．& vt．举动；(举止或行为)表现

　　(1)behave well/badly to/towards sb．　 对待某人好/不好

　　 behave oneself 守规矩；表现得体

　　(2)well­behaved adj． 表现好的

　　 badly­behaved adj． 表现差的

　　(3)behaviour n．[U] 举止；行为；习性 　　①(2014·重庆高考写作)I don't think it a reasonable practice for them to behave that way in our society．

　　我认为在这个社会里他们用那种方式做事是不合情理的。

　　②If parents do not teach their child how to behave_himself,_he will do anything at will．

　　如果父母不教给他们的孩子如何守规矩，他做任何事情都会我行我素。

　　③I think all of us should mind our behaviour (behave) in public places．

　　我认为我们大家都应该注意在公共场所的行为举止。

　　4．However, the evening makes it all worthwhile．(P2)

　　但是到傍晚时分我们就觉得这一切都是值得的。

　　★worthwhile adj．值得的；值得做的

　　①It is worthwhile to spend/spending two hours reading the book．

　　花两小时读这本书很值。

　　[辨析]

词条 搭配 意义和用法 worthwhile It's worthwhile doing．/to do sth． worthwhile可作表语、定语、补语。"值得做某事"要用it作形式主语，后接不定式或动名词作真正的主语 worth be worth＋n． 值得......；值...... be worth doing worth一般只作表语，后接名词和动名词作宾语。"某事值得被做"，用动名词的主动形式表被动意义，表示"很值得做......"要用副词well来修饰 worthy be worthy of＋n． 值得......，应得 be worthy of being done/be worthy to be done 表示"某事值得被做"，既可接"of＋动名词"，又可接不定式的被动式 　　选用上述单词填空

　　②The beautiful scenery is well worth visiting．

　　③He who does his duty is worthy of being praised．

　　④I think it worthwhile to see the film again．

　　5．She spent years observing and recording their daily activities．(P2)

　　她花了多年的时间来观察并记录它们的日常活动。

　　★observe vt．观察；观测；监视；看到；注意到；遵守(规则、法律等)；庆祝

　　写出下列句中observe的含义

　　①Though having lived abroad for years, many Chinese still observe the traditional customs．

　　 遵守

　　②It is a tradition for the people here to observe the Spring Festival． 庆祝

　　③The scientist devoted most of his lifetime to observing the behaviour of the chimps． 观察

　　④The thief was observed to open the window and run away． 注意到