2017届高考英语一轮复习课件：Book2 Unit 3 （人教版必修2）_高考复习指南

2017届高考英语一轮复习课件：Book2 Unit 3 （人教版必修2）

　　即境活用1　What a terrible experience! ________， you are safe, that's the main thing. A．Somehow

　　B．Anyhow C．Somewhat

　　D．Anywhere [解析]anyhow 无论如何，即使如此。 [答案]B 2．signal vi. & vt. 发信号；n.信号 signal (to) sb. to do sth. 示意某人做某事 signal (sb.) that 示意…… a danger/warning traffic signal 危险/警告交通信号 The police signalled the driver to stop his car by raising his hand. 警察举手示意司机停车。【易混辨析】 symbol 指符号、象征、标志等，常表达某种深邃寓意的事物。 signal

　　指为某一目的而有意识地发出的信号。 sign 表示“记号、符号”时，同 symbol。表示“告示，标志”时，侧重指用图形、文字等所表达的内容，另外还可指“征兆，迹象”。 mark 普通用词，含义广泛。既可指为便于辨认而有意识地所作的标记，又可指自然而然形成的标志或有别于其他事物的特征。也可用于指“分数，成绩”。即境活用2　The ship met with a heavy storm on the sea and had to send a ________ for help. A．signal

　　B．chance C．mark

　　D．measure [解析]signal 信号，符合句意。句意：轮船在海上遇到暴风雨，不得不发出求救信号。 [答案]A 3．arise vi. 出现；发生；起身；起床；上升 Seeing his mother return home, the boy arose from his chair immediately. (起身) New problems will arise one after another in future. (出现) They arose at sunrise to get an early start to the park.(起床) A curl of smoke is arising out of the chimney. (上升) Accidents often arise from carelessness.[(由)……产生] (1)arise 表示“出现，发生”之意时，其主语多为 problem, argument, quarrel, danger, movement, question 等抽象名词，多指不好的事情发生或出现。 (2)arise from/out of 由……而引起，由……而产生；从……中产生。【易混辨析】原形词性词义过去式过去分词现在分词 arise (vi.)出现，发生，起因于 arose arisen arising rise (vi.)升起，起身，增长，上升 rose risen rising raise (vt.)举起，提高，饲养，养育，筹集，招募 raised