选修七 英语 unit4字词课件.ppt

Unit 4　SharingUseful words and phrases;●重点单词;8．otherwise conj.否则；不然 adv.用别的方法；其他方面9．privilege n．特权；特别优待10．astronaut n．宇航员；太空人11．catalogue n．目录12．donate vt.捐赠→donation n．捐赠→donator n．捐赠者13．voluntary adj.自愿的；志愿的；无偿的→volunteer n. vi.自愿者，志愿者，自愿做……;14．purchase vt. n．买；购买15．anniversary n．周年纪念(日)16．click vi. vt.(使)发出咔嗒声 n．咔嗒声17．political adj.政治的；政党的→politics n．政治18．distribute vt.分配；分发→distribution n．分布状态；分配，分布;19．security n．安全；保护；保障20．operate vi.工作；运转vt.操作→operation n．手术，运转→operator n．操作人员;●重点短语;9．get through 完成，穿过10．come across 偶然遇到或发现；碰见；被理解11．stick out 伸出12．share sth. with sb. 和某人共享某物13．to be honest 说实在的14．die down 熄灭，减弱15．die out 绝种，消灭;词汇短语过关;2. be dying to do sth. 迫切想要；渴望做某事be dying for sth. 渴望；迫切想要某物同义拓展：be anxious to do sth./for sth.be eager to do sth./for sth.long to do sth./for sth.be thirsty forbe keen to do sth.想要……，渴望……;[即学即练] (1)I‘m __________________ what happened.我很想知道发生了什么事。(2)My daughter __________________ a piano.我女儿渴望得到一架钢琴。die 相关短语归纳：die off 相继死去 die out 灭绝，消失die for 为...而死 die from/of 因...而死die down 逐渐变弱/降低/平息/暗淡die away 逐渐减弱/模糊/消失;3．It takes me only a few minutes to walk to school down a muddy track. It takes sb some time/sth to do sth. 某人花费时间做某事。 It takes two to make a quarrel. 一个巴掌拍不响。 It took him great courage to break away from his family.; 易混辨析：take, cost, spend, charge 和pay （1）take 常见用法 ?It takes sb. ＋时间＋to do sth. 做某事花了某人多少时间。?doing sth. takes sb. ＋时间,做某事花了某人多少时间。eg：Repairing this car took him the whole afternoon. 他花了一下午修车。 （2）cost的主语是物或某种活动 sth. costs (sb.) ＋金钱 （3）spend的主语必须是人， 常用于以下结构：? spend ...on sth. 在……上花费时间（金钱）等 ?spend... (in) doing sth. 花费时间（金钱）等做某事。 （4）charge 意为“索要，要价”，与for 连用 （5）pay 意为“付”， pay money for sth. 付钱买… ;4．Many of them have walked a long way, sometimes up to two hours, to get to school. up to 多达 It takes him up to 2 hours to finish his homework everyday. 忙于 be up to sth= be busy doing sth 忙于某事 由...决定 Its