Period 3 语言知识讲练(Understanding ideas) 1.happen to发生在……身上 happen to do sth. 碰巧做某事 as it happens=by chance 碰巧;正巧 It happens/happened that... 碰巧…… [即学即练] 单句语法填空/一句多译 ①What happened __ them remains somewhat of a mystery. ②He happened _____ (see) a round black creature moving quickly through the water. ③__ it happens,I know the person you mentioned. ④他们碰巧有我正在找的那本书。 a.They _____ the book I was looking for. b._____ they had the book I was looking for. 2.assistant n.助手,助理 (1)an assistant to... ……的助理 (2)assist v. 帮助;协助;援助 assist sb.to do sth.=assist sb.in doing sth. =assist sb.with/in sth. 帮助某人做某事 (3)assistance n. 援助;帮助;支持 with the assistance of... 在……的帮助下 come to one's assistance 帮助某人 [即学即练] 单句语法填空/一句多译 ①I was sent to assist the headmaster _____ (solve) the school violence problem. ②(应用文之申请信)Learning that teaching _____ (assist) are needed for the Summer Camp for International Students in the summer vacation,I am writing to apply for it. ③For _____ (assist),please call Queensland Rail at 131617. ④____ the assistance of their mother,they managed to make delicious popcorn. ⑤如果您能帮助我制订一个旅游线路,我将不胜感激。 a.I would be very grateful if you could _____ a tour route.(assist sb.to do) b.I would appreciate it if you could _____ a tour route.(assist sb.in doing) 3.in contrast 相反;相比之下 contrast n. 对比;明显不同的人(或事物) v. 对比;形成对比 contrast...with/and... 把……和……进行对比 in contrast to/with 与……相比 by contrast 相比之下,对比起来 make a contrast with(=contrast with) 与……形成对比 [即学即练] 单句语法填空/完成句子/一句多译 ①If you contrast some of her early writings _____ her later work,you can see just how much she has improved. ②Their economy has declined,while ours,_____ contrast,has expanded. ③与他的妻子相比,他对自己的成就相当谦虚。 _____,he was rather modest about his achievements. ④黄色窗帘与蓝色床罩形成鲜明的对比。 a.The yellow curtains _____ the blue bed cover.(contrast n.) b.The yellow curtains _____ the blue bed cover.(contrast v.) 4.hang out闲逛,闲荡;挂出 hang around 在……闲荡,逗留 hang on 等一下;抓紧不放弃,坚持; 别挂电话 hang up 挂断电话;搁置 hang over (威胁或疑虑)笼罩;担心可能发生 hang on to 抓紧;保留 [即学即练] 单句语法填空/完成句子 ①A sense of sadness hung ____ the entire town. ②The principal warned the students not to hang _____ the corner grocery store after school. ③Hang __! The bus is about to leave. ④I like to hang ___ at the mall with my friends every weekend. ⑤咱们留着那些旧照片吧———它们或许有价值。 Let's _____—they may be valuable. 5.victim n.受害者,罹难者,牺牲品;受骗者,上当的人 [即学即练] 单句语法填空/一句多译 ①(应用文之倡仪书)Besides,we have also collected some basic necessities,such as clothes and food for these _____ (victim). ②If you continue to ... ...