课件38张PPT。Unit 3 Computers1．calculate vt.& vi.计算；考虑；计划 calculate on/upon sth.指望或依靠某事物 be calculated to do sth.打算或故意做某事 be calculated for 适合于……运用完成句子(1)他仔细地计算开支。 He _____ very carefully. (2)我们不能总是指望别人的帮助。 We cannot always _____.calculated the costscalculate on/upon other's help2．signal vi.& vt.发信号n．信号signal for 用信号传达(某信息) signal sb./sth.to do sth.向……示意做某事 signal with 用……发信号 a signal of/for sth.……的信号运用完成句子(1)宣布的这件事是否预示以后日子越过越好了？ Is this announcement _____ better times ahead? (2)她举手示意车停下。 She _____ by raising her hand. (3)潜水艇发出求救的信号。 The submarine _____. (4)我们可以用手电筒将消息发出去。 We can _____ by flashing the torch.a signal of/forsignaled the car to stopsignaled for helpsignal the message3．arise vi.(arose, arisen)出现；发生 arise from/out of 由……而引起；从……中产生辨析arise/rise/raise (1)arise 是不及物动词，意为“出现；发现”，常用于抽象 事物，一般表示事物和问题的产生和出现。 (2)rise 是不及物动词，无 arise 的抽象用法，只表示事物向 较高的地方或水平移动。 (3)raise 为及物动词，意为“使……上升”“举起”等。运用用 rise, arise 或 raise 的适当形式完成句子(1)The sun has not yet _____. (2)Quarrels _____ among the audience. (3)They _____ a monument to the national hero.risenaroseraised用所学单词及用法完成下列句子1．可能会下雨，但无论如何，我都会出去。It may rain, but I shall go out _____.2．阅读别人的私人信件是违法的。It goes against law to read someone's _____ letter.3．在因特网上，我们可以免费下载和使用很多信息。On the Internet we can _____ and use lots ofinformation for free.4．许多飞船被送入太空去探索太空。Many spaceships were sent into the outer space to _____ it.anyhow/anywaypersonaldownloadexplore5．只有这样，你才能实现你的目标。Only in this way can you achieve your _____.6．你能解决那个问题真是聪明。It was clever of you to _____ the problem.7．事故往往起因于粗心大意。Accidents often _____ carelessness.8．古代人们燃烧狼烟来传递外敌入侵的消息。People burnt wolf's dung to send _____ aggressionin ancient time.9．我帮您计算账单。I will _____ your bill for you.goalsolvearise from/out ofa signal ofcalculate1．as a result 结果；因此(作插入语) as a result of 作为……的结果 with the result that-clause 因此 result from 起因于 result in 导致运用完成句子 (1)他学习很勤奋。因此，他轻易地通过了考试。 He worked hard at his study._____， he passed the exam easily. (2)大火使得整间房子都受到破坏。 The fire _____ damage to the whole house. (3)他的病是由于不良食物所致。 His illness _____ bad food. (4)由于最近销量下降，利润也降低了。 Profits have declined _____ the recent drop in sales.As a resultresulted inresulted fromas a result of2．in a way 在某种程度上；从某一点上看 in every way 在各方面 by the way 顺便说一下 all the way 一直；全程on the/one's way to 在去……的路上 by way of 取道；经由；为了 in the way 妨碍(某人)make one's way 前进；成功；有出息 no way 没门儿；肯定不 in no way 绝不；决不运用完成句子 (1)在某种程度上， ... ...
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